- Alabama

1. In calculating N recommendations, MMP assumes 1 ton per cutting with warm perennial grasses and 2 tons per cutting with bermuda hay.
2. Alabama fertilizer recommendations assume that the Mehlich-1 extract was used with soils in groups 1-3 and that the Mississippi extract was used with soils in group 4 (clayey soils from Black Belt counties).
3. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the CEC Group column is the soil's CEC group and is used in generating Alabama Extension fertilizer recommendations. The possible values for CEC Group are as follows:
   • Sandy = sandy soil with CEC < 4.6
   • Loamy = loamy and clayey soil with CEC between 4.6 and 9.0
   • Non BB = non-Black Belt clayey soil with CEC > 9
   • B Belt = Black Belt clayey soil with CEC > 9
4. The value in the HydGrp column is the soil's hydrologic group.

- Alberta

1. At a minimum, be sure to enter the following soil test data for each field: P, K, NO3-N, and EC. If the P and K values are in ppm, be sure to leave the Levels Are In Lb/A box unchecked.
2. MMP assumes in Alberta that the nitrate soil test value is the average nitrate level for a 24" sample (60 cm). If you have three nitrate soil test values (for 0-6" depth, 6-12" depth, and 12-24" depth), convert the three soil test nitrate values to a single average and enter it in the NO3-N column on the Soil Tests panel. Use this equation to average the three nitrate values. Note that the nitrate values must be in ppm.
3. [0-6" depth nitrates + 6-12" depth nitrates + (12-24" depth nitrates) x 2] / 4

You can also use this equation for equivalent metric depths (0-15, 15-30 and 30-60 cm). MMP multiplies the NO3-N value you enter by 8 to get the nitrate credit in Lb/A.

Tip: If you have NO3-N values in Lb/A, divide each value by 8 to get ppm. Note that your NO3-N value must be the total Lb/A for a 24" sample.

4. If a field is irrigated, be sure to check its Irrigated With Water box on the Fields panel. This information is used with most crops in determining crop nitrogen needs.
5. Alberta fertilizer recommendations use crop target yields to estimate nitrogen requirements. These crops include:
   • HRS wheat (non-irrigated and irrigated)
   • Soft wheat (non-irrigated and irrigated)
   • Durum wheat (non-irrigated and irrigated)
   • Utility wheat (non-irrigated and irrigated)
   • CPS wheat (non-irrigated and irrigated)
   • Feed barley (non-irrigated and irrigated)
   • Malt barley (non-irrigated and irrigated)
   • Hulless barley (non-irrigated and irrigated)
   • Triticale (non-irrigated and irrigated)
   • Oats (non-irrigated and irrigated)
   • Corn for grain (irrigated)
   • Corn for silage (irrigated)
   • Canola (non-irrigated and irrigated)
   • Flax (irrigated)
   • Sunflowers (irrigated)
6. For crops that do not have yield-based recommendations, MMP defaults to a maximum nitrogen requirement based either on soil group or on irrigation and crop legume content. With these crops, changing the planned yield will have no effect on the nitrogen recommended. With all crops, nitrogen recommendations are reduced by the amount of soil nitrate N credit.
7. Enter your own manure lab analysis or book values on the Analysis panel to override MMP's excretion-based estimate. If you do so, be sure also to enter your own estimate of annual manure production in the Measured Manure Production column on the Analysis panel.
8. In Alberta, gallons refer to imperial gallons (1 imperial gallon = 1.201 U.S. gallons).
9. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The values in three of the report columns need some explanation. Drainage indicates the soil's drainage class, as follows:
   • VRapid = very rapidly
   • Rapid = rapidly
   • Well = well
   • MWell = moderately well
   • Imperf = imperfectly
   • Poor = poorly
   • VPoor = very poorly
10. Soil Group is the soil group, as follows:
    • Brown = brown
    • BrwnSW = dark brown SW and Cypress Hills
    • BrwnNE = dark brown NE
    • BlkSW = black SW
    • BlkNE = black NE
    • GreySW = dark grey SW
    • GreyNE = dark grey NE
    • Peace = Peace
11. Imperv. Layer indicates whether the soil has a restricting layer, as follows:
    • Yes = soil is limited due to impervious layer
    • No = soil has no limitation due to impervious layer

12. This is used in lieu of MMP's standard Bedrock Depth, which is blank for all soils in Alberta.

13. MMP supports the importing of data into an Alberta plan from a standard dBASE (or CSV) field data import file. In general, the import data specifications are the same as what's documented in ImportDbfSpec.doc (located in the TechDocs folder), except for the following differences:

    • The COUNTY column (if present in the import file) should be C6 and contain the 3-digit Alberta province code (101) followed by the county's 3-digit soil survey ID.
    • The SOIL1, SOIL2, and SOIL3 columns (if present in the import file) should be C18 to accommodate Alberta's longer soil map unit symbols.
    • The ACRES and SPRD_ACRE columns can be used to import field sizes in hectares with metric-unit plans, despite the non-metric column names.

14. A blank template file in the proper import format (ImportTemplate_Alberta.dbf) can be found in the TechDocs folder.

15. Clicking the Blank Data Collection Form link in MMP's About box displays a blank form that can be used to collect an operation's data. This form can be used to collect data for Alberta operations that use imperial units. To display a blank form that can be used with metric data, start Windows Explorer and double-click file BlankForm_Metric.doc in the Samples folder.

    Clicking the Sample Data Collection Form link in MMP's About box displays the data collection form with sample data filled in. To generate a sample form like this for Alberta, open one of the Alberta sample plans and run the Manure Management Plan Data Report in MMP's list of custom tools.

16. Several of the frequently asked questions (FAQs) in the program help do not apply to Alberta:

    • Ignore FAQ #10 about the USDA-NRCS Customer Service Toolkit.
    • In the last point of FAQ #22, MMP assumes in Alberta that manure applied to a forage crop will be utilized in the current year if applied through August, not September as in most U.S. states. The assumptions about manure applied to other crops are the same as in the U.S.

17. Ignore the FSA columns on the Fields panel -- these columns are for USDA Farm Service Agency (FSA) field identifiers.

18. Since an Alberta plan can be in all metric units or all imperial units, but not in a mix of units, you may need to convert some of your input data if the data are in a mix of metric and imperial units:

    To convert yields or application rates in tons/acre to tonnes/hectare, divide the tons/acre by 0.446. Multiply tonnes/hectare by 0.446 to get tons/acre.

    To convert yields in bushels/acre to kg/hectare, divide the bushels/acre by appropriate factor depending on the bushel weight. Multiply kg/hectare by the factor to get bushels/acre.

    • 60-pound bushel (wheat, soybeans, field beans, field peas, lentils, legume seed): 0.0149
    • 56-pound bushel (corn, rye, flax): 0.0159
    • 50-pound bushel (canola): 0.0178
    • 48-pound bushel (barley): 0.0186
    • 32-pound bushel (oats): 0.0279.
    • 14-pound bushel (grass seed): 0.0636

19. To convert yields or fertilizer recommendations in pounds/acre to kg/hectare, divide the pounds/acre by 0.892. Multiply kg/hectare by 0.892 to get pounds/acre.

    To convert application rates in imperial gallons/acre to litres/hectare, divide the gallons/acre by 0.089. Multiply litres/hectare by 0.089 to get imperial gallons/acre.

    To convert pounds to kilograms, divide the pounds by 2.205. Multiply kilograms by 2.205 to get pounds.

    To convert imperial gallons to litres, divide the gallons by 0.22. Multiply litres by 0.22 to get imperial gallons.

    To convert tons to tonnes, divide the tons by 1.102. Multiply tonnes by 1.102 to get tons.

    To convert acres to hectares, divide the acres by 2.471. Multiply hectares by 2.471 to get acres.

20. Three sample plans for Alberta are included with MMP and are located in the Samples folder. Alberta_Beef1_Metric.mmp is the same example as Alberta_Beef1.mmp but with all operation data converted to metric units.

    Notes and assumptions about the Alberta_Beef1.mmp sample plan:

    • At any given time in the feedlot there is a mix of 1,300 finishers and 1,700 growers. This mix of animals will produce about 5,700 tons of manure annually in the feedlot. Additionally, there are 300 cows on pasture whose manure is not collected.
    • Fields G and J,K,L are not available for manure application. In addition, fields F1 and F3 have soil nitrate levels greater than 25 ppm (200 Lb/A) and so were not used for manure application.
    • All planned manure application rates were based on crop N need except for the custom rate to field M2 in Oct. 2005.
    • 1,000 cubic yards (about 540 tons) of composted manure are exported annually. Annual clean-out is done in Sept. and exporting off-farm is done in May. Annual clean-out is shown as a transfer of 540 tons each Sept. from the feedlot pile to the compost pile. Exporting is shown as an off-farm export of 540 tons each May from the compost pile.
    • 1,000 cubic yards (about 540 tons) of feedlot manure are stockpiled during the winter months. This is shown as a transfer of 180 tons each Dec., Jan. and Feb. from the feedlot pile to the field pile.
    • Each May about 800 to 1,000 tons of manure from the feedlot pile and the 540 tons from the field pile are land applied.
    • Each Sept. about 3,000 to 3,500 tons of manure from the feedlot pile are land applied.

21. Notes and assumptions about the Alberta_Beef2.mmp sample plan:

    • Only the crop portion of field SW30-47-1W4 receives manure, so it was split into two fields of 80 acres each, one in grass, and the other in corn silage.
    • Only half of field NW19-47-1 receives manure at a time, so it was split into two fields of 80 acres each, both in barley silage.
    • All of the manure is hauled from the pens and land applied in Sept.
    • 28-0-0 commercial N fertilizer is surface broadcast to the grass fields each April and surface broadcast with incorporation to the silage and barley fields each May.
    • No applications of commercial P2O5 or K2O fertilizers were planned since no K2O is needed and only 10 Lb/A of P2O5 are needed.

- Arizona

1. MMP requires soil test nitrate data (NO3-N) to calculate crop N fertilizer recommendations. MMP uses it for all years of the plan.
2. MMP assumes that soil was sampled to a depth of 12" for NO3-N.
3. Be sure to enter the soil organic matter (OM). If you don't have soil test lab results for OM, you can enter the midpoint of the soil's OM range from the soil survey. Click the Soil Info button on the Fields panel to see soil survey data.
4. Hay and pasture yields should be entered as tons of dry material. Yields for silage should be entered as tons of wet material. Vegetable crop yields should be entered in the indicated units and assume fresh yields in most cases. Note that these crops do assume dry yields: red chile, pinto beans, dry peas.
5. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the HWT column is the soil's high water table depth, in centimeters. The value in the Drainage column is the soil's drainage class. The value in the HzKsat column is the soil's saturated hydraulic conductivity data, where each pair of numbers (separated by a comma) consists of a horizon's depth (in centimeters) and the horizon's ksat (in um/sec).

- Arkansas

1. Several obsolete crops are included for backward compatibility with plans created by earlier versions of MMP. These crops are prefixed with "x" and sort to the bottom of the alphabetical crop list on the Crops panel. Do not select these crops with new plans.
2. If Ca or Soil pH is not entered on the Soil Tests panel, MMP uses the soil's surface texture to determine textural class.
3. With rice, MMP starts with a base N rec of 120 Lb/A. Many cultivars have a higher base N rec than this. Consult the Rice Production Recommendations table on pages B27 - B29 of University of Arkansas Lime and Fertilizer Recommendations. If the total N rec for your cultivar differs from 120, adjust the Default N Rec value on the Crops panel by the difference and enter this value in the Custom N Rec column.
4. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class. The value in the Annual Flooding column is the soil's annual flooding frequency class. The value in the HydGrp column is the soil's hydrologic group.

- California

1. The Default N Rec on the Crops panel is based on 1.4 times the crop's N removal rate. This is derived from preliminary recommendations of regional experts. The Default P Rec and Default K Rec are based on the crop's P and K removal rates. To see crop removal rates, click the Crop Info button on the Crops panel.
2. The Pumpable Or Spreadable Capacity on the Storage panel for ponds and lagoons is defined as the total storage volume minus the emergency storage volume required for the 25 year/24 hour storm.
3. The Measured Manure Production value on the Analysis panel should include animal waste volume, barn water volume, and normal rainfall and runoff volume. Do not include rainfall and runoff volume for the 25 year/24 hour storm.
4. For fields that are manured annually, check the Manure Applied Annually box on the Assessment panel. When this box is checked, MMP assumes that manure available N has reached a "steady state" in which effectively all manure N will be available during the current crop year once residual N from previous years has been accounted for. For fields that are not manured every year, leave this box unchecked. MMP will then calculate manure available N using the process described in the USDA-NRCS Agricultural Waste Management Field Handbook.

- Colorado

1. MMP assumes that the soil test nitrate value entered in the NO3-N column is the depth-weighted average concentration in the top 24" of soil. If you have two sample depth values, average them as follows:

   [(Sample 1 depth x Sample 1 ppm) + (Sample 2 depth x Sample 2 ppm)] / 24

   Example: 0-8" sample is 18 ppm, 8-24" sample is 7 ppm:

   [(8 x 18) + (16 x 7)] / 24 = 10.7 ppm

   If you only have a single value for a 0-12" sample, multiply the value (in ppm) by 0.835 to estimate the 0-24" concentration.

2. If known, select the test that was used to determine the soil phosphorus level in the P Test Used column on the Soil Tests panel. If you leave this column blank for a field, MMP assumes that the Olsen test was used.
3. With irrigated crops, be sure to check the field's Irrigated With Water box on the Fields panel; for dryland crops, leave this box unchecked.
4. CSU nitrogen fertilizer recommendations generally assume that about 30 Lb/A of N become available for each percent of organic matter in the soil. For field elevations above 7000 feet, where only 10 Lb/A may become available for each percent organic matter, you can increase MMP's N rec by 20 x soil test OM. Enter this higher N rec in the Custom N Rec column on the Crops panel to override MMP's default N rec. Note that MMP's irrigated winter wheat N recs in the San Luis Valley have already been increased by 40 Lb/A over the standard winter wheat N rec.
5. MMP's potato N recs are for eastern Colorado. N recs for the San Luis Valley can be found in the CSU source bulletin (0.541). Enter these recs in the Custom N Rec column on the Crops panel to override the default eastern Colorado potato N recs.
6. MMP's P recs for most Colorado crops are for broadcast applications. Where a banded recommendation is also available (see source bulletin), the banded P rec is one half the broadcast P rec. You can enter a reduced P rec in the Custom P2O5 Rec column on the Crops panel to override the default broadcast P rec.
7. MMP calculates K recs for irrigated forages and dryland alfalfa new seeding for each year of production. However, three years' worth of K recs would typically be applied at one time for these crops.
8. No CSU fert recs are available for soybeans, cabbage, carrots, lettuce, onions or spinach. With these crops, enter your own recs in the Custom Rec columns on the Crops panel.
9. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Runoff column is the soil's runoff potential class. The value in the TFact column is the soil tolerable loss factor, in tons/acre/year.

- Connecticut

1. Connecticut's fert recs assume that the UConn modified Morgan extraction was used to determine soil test levels.
2. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class. The value in the Annual Flooding column is the soil's annual flooding frequency class.

- Delaware

1. Select the appropriate soil testing lab in the P Test Used column on the Soil Tests panel. If you leave the P Test Used column blank for a field, MMP assumes that the soil test data are University of Delaware FIV values.
2. If you are entering soil test data from University of Delaware or University of Maryland labs, be sure to leave the Levels Are In Lb/A box unchecked. These labs report P, K, Ca and Mg data as Fertility Index Values (FIV), which are unitless.
3. If you are entering soil test data from A&L Eastern Laboratories, be sure to select the correct soil test package that was run (Bray P1 or Mehlich-3).
4. If you are entering soil test data from Agri Analysis, be sure to enter the phosphorus, potassium, magnesium, and calcium values (lbs/A) and check the Levels Are In Lb/A box. Do not use the P2O5, K2O or MgO values.
5. If you are entering soil test data from Brookside Laboratories, be sure to enter the values that are in ppm and leave the Levels Are In Lb/A box unchecked. Do not use the lb/A values. If more than one phosphorus test is reported, use the "Easily Extractable" ppm of P value.
6. If you are entering soil test data from Spectrum Analytic, select Bray P1 if you did not specifically request Mehlich-3 results from the lab. Spectrum runs Mehlich-3 but normally converts to and reports Bray P1 and ammonium acetate results.
7. Corn for grain and corn silage P2O5 fertilizer recommendations assume banded application.
8. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the HWT column is the soil's high water table depth, in centimeters. The value in the Drainage column is the soil's drainage class. The value in the HydGrp column is the soil's hydrologic group. The value in the Runoff column is the soil's runoff potential class. The value in the KwFact column is the soil's erodibility factor. The value in the Horiz1 Dep column is the first soil horizon's depth, in centimeters.

- Florida

1. In calculating fertilizer recommendations, MMP assumes 2 tons per cutting for bermuda, stargrass, digitgrass, rhodesgrass, bahia, limpograss and alfalfa, 1 ton per cutting with ryegrass hay, and 2.5 tons per cutting with ryegrass haylage.
2. Fertilizer recommendations for warm-season hay crops assume split applications.
3. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the HydGrp column is the soil's hydrologic group.

- Georgia

1. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Coastal/Piedmont column indicates whether or not the soil is considered a coastal plain soil and is used in generating Georgia Extension fertilizer recommendations. The possible values for Coastal/Piedmont are as follows:
   • Coastal = coastal plain soil
   • Pied = non-coastal plain soil (piedmont)
2. The value in the HydGrp column is the soil's hydrologic group. The value in the HWT column is the soil's high water table depth, in centimeters.

- Idaho

1. The following abbreviations are used in Idaho crop names:
   • n = northern Idah
   • s = southern Idaho
   • CC = cover crop
   • DC = double crop
   • CP = conservation program
   • Ir = Irrigated
   • <=20" data-preserve-html-node="true" = 20 inches or less annual precipitation, etc.
   • CT = conventional tillage
   • RT = reduced tillage-mulch/no-till
   • W = winter
   • Graz = grazed
   • GrHay = grass hay
   • GrGrazed = grass grazed
   • Haylg = haylage
   • 30%Lg = 30% or more legume, etc.
   • Past = pasture
   • HWhite = hard white
   • HRed = hard red
   • SWhi = soft white
   • Tritic = triticale
   • Mlt = malting
2. Select the test that was used to determine the soil phosphorus level in the P Test Used column on the Soil Tests panel. In southern Idaho, only Olsen is supported; in northern Idaho, Bray P1, Morgan and Olsen are supported.

- Illinois

1. Corn N recs were determined by version 1.8 of the Corn Nitrogen Rate Calculator: http://cnrc.agron.iastate.edu/nRate.aspx

Values given in MMP represent the MRTN N rate for the appropriate region of the state (north, central, southern) using a nitrogen to corn price ratio of 0.10.

With border counties, soil OM is used to select the geographic region. If soil OM is greater than 3%, the northern of the two regions is used; otherwise, the southern of the two regions is used. See this map for more information: http://cnrc.agron.iastate.edu/Maps.aspx#illinois

To override MMP's default N rec (for example, to use a newer version of the calculator or a different price ratio), enter the override value in the Custom N Rec column on the Crops panel and document the value in the Source Of Custom Fertilizer Recommendation column.

2. For alfalfa, enter a value greater than 70 for the crop's Legume % Stand if there are 5 or more alfalfa plants per square foot. If there are 2 to 4 alfalfa plants per square foot, enter a value in the range 30-70 for Legume % Stand. If there are less than 2 alfalfa plants per square foot, enter a value less than 30 for Legume % Stand.
3. Grass N recs (other than Bluegrass) assume a split application.
4. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Subsoil P column is the soil's subsoil phosphorus-supplying power. The value in the CEC column is the soil's cation exchange capacity. These values are used in generating Illinois Extension fertilizer recommendations. The possible values for Subsoil P are as follows:
   • Low subsoil P
   • Medium subsoil P
   • High subsoil P
5. The possible values for CEC are as follows:
   • Low subsoil P
   • High CEC
6. Note that the value in the HydGrp column is the soil's hydrologic group. The value in the TFact column is the soil tolerable loss factor, in tons/acre/year.

- Indiana

1. Corn N recs were determined by version 1.8 of the Corn Nitrogen Rate Calculator: http://cnrc.agron.iastate.edu/nRate.aspx

Additional information is given in the March 2017 version of "Nitrogen Management Guidelines for Corn in Indiana": https://www.agry.purdue.edu/ext/corn/news/timeless/NitrogenMgmt.pdf

Values given in MMP represent the MRTN N rate for the appropriate region of the state using a nitrogen to corn price ratio of 0.10. To override MMP's default N rec (for example, to use a newer version of the publication or a different price ratio), enter the override value in the Custom N Rec column on the Crops panel and document the value in the Source Of Custom Fertilizer Recommendation column.

2. The Tri-State fertilizer recommendations used in Indiana and Ohio assume that CEC is estimated by summation. If the CEC values from your soil testing lab were not estimated by summation, leave CEC blank on the Soil Tests panel and let MMP estimate CEC. Note that you must enter K, Ca, Mg and Buffer pH for MMP to be able to estimate CEC. Some labs don't report buffer pH if it is greater than 7. If this is the case with some of your buffer pH values, enter 7 for these missing buffer pH values and note this in the Notes column.
3. Indiana rate choices in the Manure Application Rate Calculator. For new plans, be sure to select only from the plant available N (PAN) rate choices. The older storage available N (SAN) rate choices are still included for compatibility with previously created plans, but new plans should use the PAN rate choices.

1-year crop N need: With this rate choice, MMP calculates a rate that meets the 1-year crop N need. With non-legumes, this is the crop N fertilizer recommendation on the Crops panel. With legumes, the rate supplies 150 Lb/A plant available N (PAN). Plant available N is determined based on target crop, application timing and application method. Note that MMP limits the amount of N that can be applied in Sept. or Oct. (or Nov. in southern Indiana) for annuals with or without cover crop (or Sept. for small grains), or in July or Aug. for annuals or small grains following a small grain crop. This may result in a rate that does not supply the full crop N need. This rate choice is intended for fields with a soil test P level less than or equal to 50 ppm.

1.5 x 1-year crop P need: With this rate choice, MMP calculates a rate that supplies 1.5 times the 1-year crop P2O5 need, not to exceed the 1-year crop N rate as determined above. P need is the greater of the crop's P2O5 fertilizer recommendation or the amount of P2O5 removed from the field in the harvested portion of the crop. This rate choice is intended for fields with a soil test P level in the 51-100 ppm range.

1-year crop P need: This rate choice is the same as the previous rate except MMP uses 1.0 instead of 1.5 times the crop P2O5 need. This rate choice is intended for fields with a soil test P level in the 101-200 ppm range.

Multi-year crop P need: With these rate choices, MMP looks at the planned crop rotation in determining multi-year P needs. These rate choices are intended for fields with a soil test P level in the 51-100 ppm range (1.5 x rates) and the 101-200 ppm range (1.0 x rates) and assume no additional manure will be applied for the indicated number of years. Refer to the current Indiana USDA-NRCS Field Office Technical Guide (FOTG) nutrient management standard (590) for additional application rate guidelines.

4. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan.
   • The value in the HWT column is the soil's high water table depth, in centimeters.
   • The value in the Drainage column is the soil's drainage class.
   • The value in the Annual Flooding column is the soil's annual flooding frequency class.
   • The value in the Monthly Flooding column gives the soil's flooding frequency for each month of the year, where F = frequently floods and N = does not frequently flood in the corresponding month.
   • The value in the Runoff column is the soil's runoff potential class.
   • The value in the TFact column is the soil tolerable loss factor, in tons/acre/year.
   • The value in the WEI column is the soil's wind erodibility index.
   • The value in the NLI column is the soil's nitrate leaching index.
   • The value in the KfFact column is the soil's erodibility factor.
   • The value in the Slope Len column is the soil's typical slope length, in meters.

- Iowa

1. Corn N recs were determined by version 1.8 of the Corn Nitrogen Rate Calculator: http://cnrc.agron.iastate.edu/nRate.aspx

Values given in MMP represent the MRTN N rate using a nitrogen to corn price ratio of 0.10. To override MMP's default N rec (for example, to use a newer version of the calculator or a different price ratio), enter the override value in the Custom N Rec column on the Crops panel and document the value in the Source Of Custom Fertilizer Recommendation column.

2. If known, select the test that was used to determine the field's soil phosphorus level in the P Test Used column on the Soil Tests panel. If you leave this column blank for a field, MMP assumes that the Bray P1 test was used (with a dried sample) if the field's soil pH is < 7.4 and that the Olsen test was used (with a dried sample) if soil pH is >= 7.4.

3. All supported phosphorus tests include "dry" or "moist" to indicate the sample handling procedure used in the soil testing laboratory. Note that the choice of sampling handling procedure affects K recs, but not P recs.

4. N fertilizer recommendations for grass pasture and hay assume a split application.

5. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Subsoil P column is the soil's subsoil phosphorus level. The value in the Subsoil K column is the soil's subsoil potassium level. The value in the Texture column is the soil's texture. The value in the CSR column is the soil's Corn Suitability Rating. Note that Subsoil P, Subsoil K and CSR are no longer used in generating Iowa Extension fertilizer recommendations. The possible values for Subsoil P are as follows:
   • Low subsoil K
   • High subsoil K

6. The possible values for Subsoil K are as follows:
   • Low subsoil K
   • High subsoil K

7. The possible values for Texture are as follows:
   • Fine texture
   • Sandy texture

8. CSR values range from 0 to 100. The value in the Drainage column is the soil's drainage class, the value in the HydGrp column is the soil's hydrologic group, and the value in the Perm. Code column is the soil's permeability code, which ranges from 0 (very rapid) to 90 (very slow).

- Kansas

1. MMP uses a 6-year build time frame when calculating Kansas State P and K fertilizer recommendations.
2. If known, select the test that was used to determine the field's soil phosphorus level in the P Test Used column on the Soil Tests panel. If you leave this column blank for a field, MMP assumes that the Bray P1 test was used.
3. If soil test nitrate data is entered (NO3-N), MMP only uses it for N fertilizer recommendations in the first year of the plan. For subsequent years (or if no soil nitrate value is entered for a field), MMP assumes a 30 Lb/A nitrate credit.
4. MMP requires that nitrate (NO3-N) soil test data be entered in units of ppm. If you are entering soil nitrate values that are in Lb/A, divide each value by 7.2 to get the appropriate value in ppm. This assumes the soil was sampled to a depth of 24".
5. With irrigated crops, be sure to check the field's Irrigated With Water box on the Fields panel; for dryland crops, leave this box unchecked.
6. KSU publication MF-2586 suggests increasing the N rec by 20 Lb/A for cool season crops that are no-tilled. You may also need to increase the N rec for no-tilled cool season crops following alfalfa or clover by half of the normal legume N credit. Enter the adjusted N rec in the Custom N Rec column on MMP's Crops panel to override MMP's default N rec.
7. KSU publication MF-2586 suggests increasing the N rec for cool season crops that are grazed by 40 Lb/A per 100 pounds of beef weight gain per acre. Enter the adjusted N rec in the Custom N Rec column on MMP's Crops panel to override MMP's default N rec.
8. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Runoff column is the soil's runoff potential class. The value in the KwFact column is the soil's erodibility factor.

- Kentucky

1. With corn, MMP uses the midpoint of the appropriate drainage class's N rec given in Table 13 in Kentucky Extension publication AGR-1 (2010-2011). MMP determines a soil's drainage class using USDA-NRCS Soil Data Mart soils data - in a few cases, this may differ from the classes given in AGR-1. With a Beasley, Eden, Heitt, or Lowell soil, you can override the default corn N rec, increasing it by 40 to account for the difference in drainage class.
2. For corn following grass pasture or hay, MMP assumes that the grass had been grown continuously for 5 or more years and takes a 50 pound N credit. If this is not the case (less than 5 years of grass prior to the corn), you can override the default N rec, increasing it by 25 so that only a 25 pound N credit is taken. See Table 13 in AGR-1.
3. With tobacco, MMP uses the midpoint of the appropriate drainage class's N rec given in Table 10 in AGR-1. MMP determines a soil's drainage class using USDA-NRCS Soil Data Mart soils data -- in a few cases, this may differ from the classes given in AGR-1. With a Beasley, Eden, Heitt, or Lowell soil, you can override the default tobacco N rec, increasing it by 25 to account for the difference in drainage class.
4. For tobacco following pasture or hay, MMP uses the Medium N Levels row in Table 10 in AGR-1 if the previous crop is grass or grass-legume with less than 80% legume stand. MMP uses the High N Levels row in Table 10 if the previous crop is legume cover crop or grass-legume with 80% or higher legume stand.
5. For intensively managed wheat (yield of at least 70 bu), MMP uses the average of the single and split application spring N recs; for lower-yield wheat, MMP uses the midpoint of the spring N rec range. See Tables 18 and 17 in AGR-1.
6. For a new seeding of bermuda, MMP uses an N rec of 100, which is split into two applications (at planting and around Aug. 15).
7. For established bermuda pasture, MMP uses the midpoint of the N rec range given in Table 30 in AGR-1.
8. For established bermuda hay N rec, MMP assumes 2 tons of yield per clipping in determining the number of clippings.
9. With established cool-season grass hay and pasture, MMP uses an N rec of 200, which is split into three applications. See Table 27 in AGR-1.
10. Note that for crops where the N rec is given as a range, you can override MMP's default N rec (generally the midpoint of the range) by entering a different value that is within the range given in AGR-1.
11. If manure has been applied to a field in more than half of the previous 10 years, you can check the Manure Applied Annually box on MMP's Assessment panel to increase the amount of second-year N availability. See Table 2 in Kentucky Extension publication AGR-165.
12. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class. The value in the HydGrp column is the soil's hydrologic group.

- Maine

1. Your soil test data must use the Modified Morgan nutrient extraction procedure. Do not use soil test data that was determined with some other extraction.
2. Enter the soil test lime index value in the Buffer pH column on the Soil Tests panel.
3. MMP can calculate CEC for you if you enter the soil test K, Mg, Ca, Soil pH, Buffer pH and Target pH data

For Target pH, enter 6.0, 6.5 or 7.0, or leave Target pH blank if no lime is needed -- MMP will then calculate CEC using the current soil pH as the target.

Note that for general agronomic crops (corn silage, alfalfa, clover, grass hay, pasture), a target pH of 6.5 is typically used.

4. For silage and haylage crops, enter yields in wet tons (65-70% moisture). For hay and pasture crops, enter yields in dry tons (10% moisture).
5. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class. The value in the HydGrp column is the soil's hydrologic group.

- Maryland

1. Select the appropriate soil testing lab in the P Test Used column on the Soil Tests panel. If you have soil test results from a lab that's not in the list, you'll have to convert your soil test P, K, Mg and Ca data to University of Maryland FIV values. Consult with your soil test lab for assistance. If you leave the P Test Used column blank for a field, MMP assumes that the soil test data are Maryland FIV values.
2. If you are entering soil test data from University of Maryland or University of Delaware labs, be sure to leave the Levels Are In Lb/A box unchecked. These labs report data as Fertility Index Values (FIV), which are unitless.
3. If you are entering soil test data from Agri Analysis, be sure to enter the phosphorus, potassium, magnesium, and calcium values (lbs/A) and check the Levels Are In Lb/A box. Do not use the P2O5, K2O or MgO values.
4. If you are entering soil test data from Brookside Laboratories, be sure to enter the values that are in ppm and leave the Levels Are In Lb/A box unchecked. Do not use the lb/A values. If more than one phosphorus test is reported, use the "Easily Extractable" ppm of P value.
5. MMP assumes that soil test data from Spectrum Analytic was run with Mehlich-3 but converted to and reported as Bray P1 and ammonium acetate results.
6. The Maryland Extension N rec for wheat, barley, rye and winter oats has a range of 70-100 Lb/A. MMP uses the midpoint (85) of this range for its default N rec for these crops. If lodging is expected, you can reduce the default N rec by 20 Lb/A and enter the new rec in the crop's Custom N Rec column. Similarly, if lodging is expected with canola, you can reduce the default N rec by 50 Lb/A and enter the new rec in the crop's Custom N Rec column. In either case, be sure to document this custom N rec in the crop's Source column.
7. With alfalfa, enter a value for the crop's Legume % Stand greater than 70 for a good stand (>4 plants per sq. ft.), 30-70 for a fair stand (1.5 to 4 plants per sq. ft.), or less than 30 for a poor stand (<1.5 data-preserve-html-node="true" plants per sq. ft.).
8. For fert rec explanatory notes and nutrient application suggestions, refer to "Soil Fertility Management," Maryland Cooperative Extension, SFM-1, Oct. 2002.
9. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the HWT column is the soil's high water table depth, in centimeters. The value in the Drainage column is the soil's drainage class. The value in the HydGrp column is the soil's hydrologic group. The value in the Runoff column is the soil's runoff potential class. The value in the KwFact column is the soil's erodibility factor. The value in the Horiz1 Dep column is the first soil horizon's depth, in centimeters.

- Massachusetts

1. Massachusetts' fert recs assume that the UMass soil testing lab's modified Morgan extraction was used to determine soil test levels. If you have soil test results from another lab, you'll need to convert your soil test data to UMass modified Morgan values. Consult with your soil test lab for assistance. Note that you will need to enter P, K and Al in order for MMP to calculate P and K recs.
2. With alfalfa, clover/trefoil and grass hay maintenance, enter the percent of the stand that is legume in the crop's Legume % Stand column.
3. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class. The value in the Annual Flooding column is the soil's annual flooding frequency class.

- Michigan

1. Corn N recs were based on rates given in "2015 MRTN Suggested N Rates for Corn": http://www.soil.msu.edu/wp-content/uploads/2015/03/2015-MRTN-N-Rates-for-Corn.pdf Values given in MMP represent the MRTN N rate using a nitrogen to corn price ratio of 0.10. To override MMP's default N rec (for example, to use a newer version of the publication or a different price ratio), enter the override value in the Custom N Rec column on the Crops panel and document the value in the Source Of Custom Fertilizer Recommendation column.
2. Michigan's fertilizer recommendations assume that CEC is estimated by summation. If the CEC values from your soil testing lab were not estimated by summation, leave CEC blank on the Soil Tests panel and let MMP estimate CEC. Note that you must enter K, Ca, Mg and Buffer pH for MMP to be able to estimate CEC. Some labs don't report buffer pH if it is greater than 7. If this is the case with some of your buffer pH values, enter 7 for these missing buffer pH values and note this in the Notes column.
3. Fertilizer recommendations are not available for the following crops on organic soils: sugar beet, timothy hay, corn seed, trefoil seed production, and tomatoes. In most cases, these crops are not suited for growing on organic soils.
4. Several obsolete crops are included for backward compatibility with plans created by earlier versions of MMP. These crops are prefixed with "x" and sort to the bottom of the alphabetical crop list on the Crops panel. Do not select these crops with new plans.
5. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the HydGrp column is the soil's hydrologic group.

- Minnesota

1. Corn N recs were based on rates given in "Fertilizer Recommendations for Agronomic Crops in Minnesota" (BU-06240-S, 2011) and "Fertilizing Corn Grown on Irrigated Sandy Soils" (AG-NM-1501, 2015): http://www.extension.umn.edu/agriculture/nutrient-management/nutrient-lime-guidelines Values given in MMP represent the MRTN rate for a nitrogen to corn price ratio of 0.10. To override MMP's default N rec (for example, to use newer versions of the publications or a different price ratio), enter the override value in the Custom N Rec column on the Crops panel and document the value in the Source Of Custom Fertilizer Recommendation column.
2. If known, select the test that was used to determine the soil phosphorus level in the P Test Used column on the Soil Tests panel. If you leave this column blank for a field, MMP assumes that the Bray P1 test was used if the field's soil pH is < 7.3 and that the Olsen test was used if soil pH is >= 7.3.
3. If soil test nitrate data is entered (NO3-N), MMP only uses it for N fertilizer recommendations in the first year of the plan.
4. MMP requires that nitrate soil test data (NO3-N) be entered in units of ppm. If you are entering soil nitrate values that are in Lb/A, divide each value by 8 to get the appropriate value in ppm. This assumes the soil was sampled to a depth of 24".
5. With alfalfa, enter a value greater than 70 for the crop's Legume % Stand if there are 4 or more alfalfa plants per square foot. If there are 2-3 alfalfa plants per square foot, enter a value in the range 30-70. If there is one or less alfalfa plant per square foot, enter a value less than 30.
6. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the HydGrp column is the soil's hydrologic group.

- Mississippi

1. Mississippi's phosphorus fertilizer recommendations assume that the Lancaster extraction was used to determine soil phosphorus.
2. Be sure to enter CEC values that were determined by summation on the Soil Tests panel. If you enter K, Mg, Ca and Buffer pH, the CEC you enter should match MMP's Estimated CEC. If it doesn't, leave the CEC column blank and MMP will use Estimated CEC, which was determined by summation.
3. Be sure to enter a yield goal for forage crops since MMP uses yield goal to determine many of these crops' N fertilizer recommendations.
4. If a corn or watermelon crop will be irrigated, be sure to check the field's Irrigated With Water box on the Fields panel.

5. The following crops are typically a mixture of common bermuda, bahia and dallis. The "annual leg" can be crimson clover, annual lespedeza, arrowleaf clover, ball clover, or subterranean clover. The "peren leg" can be white clover, red clover, arrowleaf clover, lespedeza, or subterranean clover.

   • Mixed grass hay maint
   • Mixed grass hay new
   • Mixed grass/leg hay maint
   • Mixed grass/leg hay new
   • Pasture grass maint
   • Pasture grass new
   • Pasturegr/ann leg maint
   • Pasturegr/annual leg new
   • Pasturegr/peren leg maint
   • Pasturegr/peren leg new

6. The following crops can be tall fescue or orchardgrass (northern Mississippi only). The "legume" is typically white clover, red clover, or subterranean clover.

   • Winter gr hay/leg maint
   • Winter gr hay/legume new
   • Winter gr past/leg maint
   • Winter gr past/legume new
   • Winter grass hay maint
   • Winter grass hay new
   • Winter grass past maint
   • Winter grass pasture new
7. See also "Management and Timing of Application of Nutrients," USDA-NRCS Agronomy Technical Note MS-05.
8. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Runoff column is the soil's runoff potential class.

- Missouri

1. If you don't have soil test CEC data, enter each field's Neutralizable Acidity in the Buffer pH column on the Soil Tests panel in order for MMP to calculate CEC. If a field's Neutralizable Acidity is 0, leave the Buffer pH column blank for that field.
2. If you have salt pH data, enter it in the Soil pH column.
3. MMP uses yield goal units of tons with pasture crops and assumes that 1 cow day = 30 pounds of forage dry matter.
4. With irrigated crops, be sure to check the field's Irrigated With Water box on the Fields panel; for dryland crops, leave this box unchecked.

- Montana

1. Montana phosphorus fertilizer recommendations assume that the Olsen P test was used.
2. You must enter soil test nitrate data (NO3-N) for MMP to calculate MSU nitrogen fertilizer recommendations. MMP uses it for N fert recs for all years of the plan.
3. MMP requires that nitrate (NO3-N) soil test data be entered in units of ppm. If you have soil nitrate values that are in Lb/A, divide the 2-foot total N value (in Lb/A) by 8 to get the appropriate value to enter (in ppm). Note that this assumes the soil was sampled to a depth of 24".
4. MSU publication EB 161 suggests increasing N recs in some cases following small grains. If small grain residue will remain on the surface and N will be broadcast applied, you can increase MMP's default N rec by 10 Lb/A for each 1000 pounds of small grain residue, up to a maximum of 40 Lb/A. Enter the adjusted N rec in the Custom N Rec column on MMP's Crops panel to override the default N rec.
5. Oat and barley hay use the same fertilizer recommendations as oat and barley grown for grain. For hay, enter an equivalent yield in bushels of grain.
6. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class. The value in the Perm column is the soil's permeability class.

- Nebraska

1. If soil test nitrate data is entered (NO3-N), MMP only uses it for N fertilizer recommendations in the first year of the plan. For subsequent years (or in the first year if no soil nitrate value is entered for a field), MMP uses an assumed nitrate concentration for the crop's suggested sampling depth, as follows:
2. MMP requires that nitrate (NO3-N) soil test data be entered in units of ppm. If you have soil nitrate values that are in Lb/A, divide each value by the indicated multiplier above to get the appropriate value in ppm. This assumes the soil was sampled to the suggested depth.
3. If known, select the test that was used to determine the soil phosphorus level in the P Test Used column on the Soil Tests panel. If you leave this column blank for a field, MMP assumes that the Bray P1 test was used if the field's soil pH is < 7.3 and that the Olsen test was used if soil pH is >= 7.3.
4. For corn N recs, MMP assumes a 10:1 corn:N price ratio and spring pre-plant application timing in determining adjustment factors.
5. For wheat N recs, MMP assumes a 0.1 N:wheat price ratio. For wheat P recs, MMP assumes a 0.1 P:wheat price ratio in calculating the broadcast P rec.
6. With irrigated crops, be sure to check the field's Irrigated With Water box on the Fields panel; for dryland crops, leave this box unchecked.
7. MMP's P and K recs for most Nebraska crops are for broadcast applications. With corn, the P rec for banding preplant or beside the row at planting is half of MMP's broadcast P rec. With millet, the P rec assumes that the phosphorus will be banded.
8. With alfalfa, enter a value in the range 70-100 for the crop's Legume % Stand if there are more than 4 alfalfa plants per square foot. Enter a value in the range 30-69 if there are 1.5 to 4 alfalfa plants per square foot. Enter a value in the range 0-29 if there are less than 1.5 alfalfa plants per square foot.
9. With irrigated grass and pasture, enter a value of 50 or higher for the crop's Legume % Stand to obtain the P and K rec for grass-legume; if no value is entered or the value is less than 50, MMP returns the P and K rec for grass.
10. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the HydGrp column is the soil's hydrologic group.

- Nevada

1. MMP requires soil test nitrate data (NO3-N) to calculate crop N fertilizer recommendations. MMP uses it for all years of the plan.
2. MMP assumes that soil was sampled to a depth of 12" for NO3-N.
3. Hay and pasture yields should be entered as tons of dry material. Yields for silage should be entered as tons of wet material. Vegetable crop yields should be entered in the indicated units and assume fresh yields in most cases. Note that these crops do assume dry yields: red chile, pinto beans, dry peas.
4. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the HWT column is the soil's high water table depth, in centimeters. The value in the Drainage column is the soil's drainage class. The value in the HzKsat column is the soil's saturated hydraulic conductivity data, where each pair of numbers (separated by a comma) consists of a horizon's depth (in centimeters) and the horizon's ksat (in um/sec).

- New Hampshire

1. In calculating P and K recommendations, MMP assumes 1.5 tons per cutting with alfalfa, alfalfa grass, clover grass and grass hay.
2. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Runoff column is the soil's runoff potential class.

- New Jersey

1. Select the appropriate soil testing lab in the P Test Used column on the Soil Tests panel. If you have soil test results from a lab that's not in the list, you'll have to convert your soil test P, K, Mg and Ca data to Mehlich-3 values. Consult with your soil test lab for assistance. If you leave the P Test Used column blank for a field, MMP assumes that the soil test data are Mehlich-3 values.
2. If you are entering soil test data from A&L Eastern Laboratories, be sure to obtain Mehlich-3 results from the lab.
3. If you are entering soil test data from Agri Analysis, be sure to enter the phosphorus, potassium, magnesium, and calcium values (lbs/A) and check the Levels Are In Lb/A box. Do not use the P2O5, K2O or MgO values.
4. If you are entering soil test data from Brookside Laboratories, be sure to enter the values that are in ppm and leave the Levels Are In Lb/A box unchecked. Do not use the lb/A values. If more than one phosphorus test is reported, use the "Easily Extractable" ppm of P value.
5. If you are entering soil test data from Spectrum Analytic, be sure to obtain Mehlich-3 results from the lab. Spectrum runs Mehlich-3 but normally converts to and reports Bray P1 and ammonium acetate results.
6. Be sure to enter the percent legume stand for alfalfa, clover and trefoil. MMP uses this to determine the correct legume N credit if a corn or corn silage crop will be grown in the following year.
7. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the HydGrp column is the soil's hydrologic group.

- New Mexico

1. MMP requires soil test nitrate data (NO3-N) to calculate crop N fertilizer recommendations. MMP uses it for all years of the plan.
2. MMP assumes that soil was sampled to a depth of 12" for NO3-N.
3. Hay and pasture yields should be entered as tons of dry material. Yields for silage should be entered as tons of wet material. Vegetable crop yields should be entered in the indicated units and assume fresh yields in most cases. Note that these crops do assume dry yields: red chile, pinto beans, dry peas.
4. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the HWT column is the soil's high water table depth, in centimeters. The value in the Drainage column is the soil's drainage class. The value in the HzKsat column is the soil's saturated hydraulic conductivity data, where each pair of numbers (separated by a comma) consists of a horizon's depth (in centimeters) and the horizon's ksat (in um/sec).

- New York

1. Select the test that was used to determine the soil phosphorus level in the P Test Used column on the Soil Tests panel. If you leave this column blank for a field, MMP assumes that the Cornell Morgan test was used. Non-Cornell lab results are converted to Cornell Morgan using the equations given in this spreadsheet: http://nmsp.cals.cornell.edu/software/Morganequiv7.xls With non-Cornell labs, be sure to enter Ca, Al and Soil pH results too.
2. If a field is artificially drained, be sure to select the type of drainage on the Assessment panel. In determining corn, millet, sorghum, sudangrass and sunflower N recs, MMP assumes that patterned tile drainage is excellent, random tile drainage is adequate, and other types of drainage are inadequate.
3. With no-till crop production, increase the default N rec by 20 Lb/A for corn, millet, sorghum, sudangrass and sunflower. Enter the higher rec in the Custom N Rec column.

- Nevada

1. MMP requires soil test nitrate data (NO3-N) to calculate crop N fertilizer recommendations. MMP uses it for all years of the plan.
2. MMP assumes that soil was sampled to a depth of 12" for NO3-N.

- North Carolina

Crop fertilization recommendation based on North Carolina Soil Tests," NCDA&CS, Circular No. 1, Feb. 2014 http://www.ncagr.gov/agronomi/pdffiles/obook.pdf

- North Dakota

1. Corn N recs given in MMP represent the N rate using a nitrogen to corn price ratio of 0.10 with an N price of $0.40/lb and a corn price of $4.00/bu.

Sunflower N recs given in MMP represent the N rate for a nitrogen price of $0.40/lb and a sunflower price of $0.15/lb. Wheat N recs given in MMP represent the N rate using a nitrogen to wheat price ratio of 0.10 with an N price of $0.40/lb and a wheat price of $4.00/bu.

To override MMP's default N rec (for example, to use a different price ratio), enter the override value in the Custom N Rec column on the Crops panel and document the value in the Source Of Custom Fertilizer Recommendation column.

Note that you'll need to override MMP's default N recs with no-till corn and no-till sunflower since tillage is not an MMP input.

2. If soil test nitrate data is entered (NO3-N), MMP only uses it for N fertilizer recommendations in the first year of the plan. For subsequent years (or if no soil nitrate value is entered for a field), MMP assumes a 40 Lb/A nitrate credit.
3. MMP requires that nitrate (NO3-N) soil test data be entered in units of ppm. If you are entering soil nitrate values that are in Lb/A, divide each value by 8 to get the appropriate value in ppm. This assumes the soil was sampled to a depth of 24".
4. If known, select the test that was used to determine the soil phosphorus level in the P Test Used column on the Soil Tests panel. If you leave this column blank for a field, MMP assumes that the Olsen test was used. Note that the Bray P1 test is not supported for corn, rye or wheat.
5. With alfalfa, enter a value greater than 70 for the crop's Legume % Stand if there are more than 4 alfalfa plants per square foot. If there are 3-4 alfalfa plants per square foot, enter a value in the range 51-70. If there are 1-2 alfalfa plants per square foot, enter a value in the range 30-50. If there is less than 1 alfalfa plant per square foot, enter a value less than 30.

- Ohio

1. Corn N recs were determined by version 1.8 of the Corn Nitrogen Rate Calculator: http://cnrc.agron.iastate.edu/nRate.aspx Values given in MMP represent the MRTN N rate using a nitrogen to corn price ratio of 0.10. To override MMP's default N rec (for example, to use a newer version of the calculator or a different price ratio), enter the override value in the Custom N Rec column on the Crops panel and document the value in the Source Of Custom Fertilizer Recommendation column.

2. The Tri-State fertilizer recommendations used in Ohio and Indiana assume that CEC is estimated by summation. If the CEC values from your soil testing lab were not estimated by summation, leave CEC blank on the Soil Tests panel and let MMP estimate CEC. Note that you must enter K, Ca, Mg and Buffer pH for MMP to be able to estimate CEC. Some labs don't report buffer pH if it is greater than 7. If this is the case with some of your buffer pH values, enter 7 for these missing buffer pH values and note this in the Notes column.

3. Ohio rate choices in the Manure Application Rate Calculator:

Available N in storage: With this rate choice, MMP calculates a rate that meets the 1-year crop N need. With non-legumes, this is the crop N fertilizer recommendation on the Crops panel. With legumes, the rate supplies 150 Lb/A available N. Available N is determined by the maximum N available from the manure in the first year following application. No post-application losses are taken into account. If you entered a manure lab analysis on the Analysis panel, MMP uses the value in the Meas. Max. Avail. N column. If you did not enter a lab analysis, MMP uses the value in the Est. Max. Avail. N column. This rate choice is intended for June through September applications on high N leaching fields with a growing or cover crop and October through March applications on high N leaching fields.

50 Lb/A stor avail N: With this rate choice, MMP calculates a rate that supplies 50 Lb/A of available N, as determined above. This rate choice is intended for June through September applications on high N leaching fields with no growing crop.

Avail N after app losses: With this rate choice, MMP determines available N as above, but takes into account expected short-term application losses due to volatilization of ammonium N. This rate choice is intended for June through March applications on low or medium N leaching fields.

Available N after all losses: With this rate choice, MMP determines available N as above, but takes into account all expected losses due to application method and timing. This rate choice is intended for April and May applications only.

1-year crop P needs: With this rate choice, MMP calculates a rate that supplies the 1-year crop P2O5 need, not to exceed the 1-year crop N rate as determined above (after application losses). P need is the greater of the crop's P2O5 fertilizer recommendation or the amount of P2O5 removed from the field in the harvested portion of the crop.

Multi-year crop P needs: With these rate choices, MMP looks at the planned crop rotation in determining multi-year P needs and assumes no additional manure will be applied for the indicated number of years.

Refer to the current Ohio USDA-NRCS Field Office Technical Guide (FOTG) nutrient management standard (590) for additional application rate guidelines.

4. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Annual Flooding column is the soil's annual flooding frequency class. The value in the HydGrp column is the soil's hydrologic group.

- Oklahoma

1. If you are entering soil test data from the OSU Soil, Water, and Forage Analytical Laboratory, be sure to check the Levels Are In Lb/A box on the Soil Tests panel.
2. MMP requires that nitrate soil test data (NO3-N) be entered in units of ppm. If you are entering soil nitrate values from the OSU lab that are in Lb/A, divide each nitrate value by 2 to get the value to enter in ppm (assumes a 6" sampling depth). These values will only be used for N fertilizer recommendations in the first year of the plan. If no soil nitrate value is entered for a field, MMP assumes 0 nitrate credit.
3. OSU publication F-2225 suggests increasing the N rec for small grains that are also grazed by 30 Lb/A per 100 pounds of beef weight gain or 1000 pounds of forage grazed per acre. Enter the adjusted N rec in the Custom N Rec column on MMP's Crops panel to override MMP's default N rec.
4. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class. The value in the Annual Flooding column is the soil's annual flooding frequency class. The value in the HydGrp column is the soil's hydrologic group. The value in the TFact column is the soil tolerable loss factor, in tons/acre/year.

- Oregon

1. MMP assumes the Bray P1 soil test is used in counties west of the Cascades and the Olsen P soil test is used in counties east of the Cascades. If you leave the P Test Used column blank on the Soil Tests panel, MMP assumes that the field's soil test P level was determined by the appropriate P test for the operation's county. If you select the wrong P test for the county's region, or if no fertilizer recommendations are available for the county's region, the default fertilizer recommendations on the Crops panel will be blank.
2. For soil test P and K, enter your levels as ppm for a 12" sample depth.
3. For pastures on dairies west of the Cascades, select the appropriate forage crop (tall fescue, orchardgrass, perennial ryegrass, annual ryegrass). The pasture crops listed are for beef and sheep.
4. Enter corn silage yields as wet tons at 65% moisture. Enter oat haylage yields as wet tons at 60% moisture. Enter yields for hay and pasture crops as tons of dry matter. See the Crops panel help for tips on converting yields to a specific moisture content. Refer to Oregon State Extension publication EM8585 for typical forage yields.
5. Fertilizer recommendations for corn west of the Cascades assume 20,000 plants/acre. Refer to Oregon State Extension publication FG10 for adjusting fertilizer recommendations for different populations. Fertilizer recommendations for corn east of the Cascades assume 25,000 to 30,000 plants/acre and yields of at least 150 bushels per acre. Refer to Oregon State Extension publication FG71 for adjusting fertilizer recommendations for different populations or yield goals.
6. MMP requires nitrate soil test data for calculating N recommendations for many crops east of the Cascades. Enter the average ppm of nitrates for the assumed sample depth (see below). If your nitrate soil test data is in Lb/A of nitrates, divide the value by the indicated divisor to get the equivalent ppm. If you have ppm values for more than one depth, average them using MMP's Soil Test Nitrate Calculator.
7. With spring-planted small grains on muck and peat soils east of the Cascades, be sure to enter the soil test organic matter percent.
8. With grass pastures east of the Cascades, you can increase the N rec for lower altitude, longer growing season areas. Enter the higher N rec in the Custom N Rec column on the Crops panel. See Oregon State Extension publication FG21 for more information.
9. With established tall fescue seed and perennial ryegrass seed, MMP's K recs assume that straw is baled and removed. If straw is burned or chopped, you can decrease the K2O rec by 25 to 50 Lb/A. Enter the lower K2O rec in the Custom K2O Rec column on the Crops panel.
10. With onions, MMP's P recs assume 0% soil lime concentration and not fumigated before planting. You can increase the P rec by 8 Lb/A for each percent of free lime. You can also increase the P rec by 40 Lb/A if fumigated before planting. Enter the higher P rec in the Custom P2O5 Rec column on the Crops panel. See publication PNW546 for more information.
11. No fert recs are available for sugar beets or dry edible beans. With these crops, enter your own recs in the Custom Rec columns on the Crops panel.
12. With irrigated crops, be sure to check the field's Irrigated With Water box on the Fields panel; for dryland crops, leave this box unchecked.
13. P fertilizer recommendations for most crops assume a banded application. Refer to the fertilizer recommendation's source publication for any increases to make if the P fertilizer will be broadcast.
14. If a field has been manured annually for 4 or more years, be sure to check the Manure Applied Annually box on the Assessment panel. If the field has not been manured annually for 4 or more years, leave this box unchecked.
15. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class. The value in the Annual Flooding column is the soil's annual flooding frequency class. The value in the HydGrp column is the soil's hydrologic group.

- Pennsylvania

1. Select the appropriate soil testing lab in the P Test Used column on the Soil Tests panel. If you have soil test results from a lab that's not in the list, you'll have to convert your soil test P, K, Mg and Ca data to Mehlich-3 values. Consult with your soil test lab for assistance. If you leave the P Test Used column blank for a field, MMP assumes that the soil test data are Mehlich-3 values.
2. If you are entering soil test data from A&L Eastern Laboratories, be sure to obtain Mehlich-3 results from the lab.
3. If you are entering soil test data from Agri Analysis, be sure to enter the phosphorus, potassium, magnesium, and calcium values (lbs/A) and check the Levels Are In Lb/A box. Do not use the P2O5, K2O or MgO values.
4. If you are entering soil test data from Brookside Laboratories, be sure to enter the values that are in ppm and leave the Levels Are In Lb/A box unchecked. Do not use the lb/A values. If more than one phosphorus test is reported, use the "Easily Extractable" ppm of P value.
5. If you are entering soil test data from Spectrum Analytic, be sure to obtain Mehlich-3 results from the lab. Spectrum runs Mehlich-3 but normally converts to and reports Bray P1 and ammonium acetate results.
6. Be sure to enter the percent legume stand for alfalfa, clover and trefoil. MMP uses this to determine the correct legume N credit if a corn or corn silage crop will be grown in the following year.
7. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class. The value in the Runoff column is the soil's runoff potential class.

- Rhode Island

1. Rhode Island uses Massachusetts' fertilizer recommendations. Massachusetts' fert recs assume that the UMass soil testing lab's modified Morgan extraction was used to determine soil test levels. If you have soil test results from another lab, you'll need to convert your soil test data to UMass modified Morgan values. Consult with your soil test lab for assistance. Note that you will need to enter P, K and Al in order for MMP to calculate P and K recs.
2. With alfalfa, clover/trefoil and grass hay maintenance, enter the percent of the stand that is legume in the crop's Legume % Stand column.
3. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class. The value in the Annual Flooding column is the soil's annual flooding frequency class.

- South Carolina

1. With irrigated corn, be sure to check the field's Irrigated With Water box on the Fields panel; for dryland corn, leave this box unchecked.
2. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the HWT column is the soil's high water table depth, in centimeters. The value in the HydGrp column is the soil's hydrologic group. The value in the Perm column is the soil's permeability class. The value in the Soil Group column is the soil's soil group used in generating fertilizer recommendations. For more information, see pages 1-3 in EC 476, "Nutrient Management for South Carolina," Clemson University.

- South Dakota

1. If known, select the test that was used to determine the soil phosphorus level in the P Test Used column on the Soil Tests panel. If you leave this column blank for a field, MMP assumes that the Olsen test was used.
2. If soil test nitrate data is entered (NO3-N), MMP only uses it for N fertilizer recommendations in the first year of the plan. For subsequent years (or if no soil nitrate value is entered for a field), MMP assumes a 40 Lb/A nitrate credit following a crop or 75 Lb/A following fallow.
3. MMP requires that nitrate (NO3-N) soil test data be entered in units of ppm. If you are entering soil nitrate values that are in Lb/A, divide each value by 8 to get the appropriate value in ppm. This assumes the soil was sampled to a depth of 24".
4. Increase the default N rec by 30 Lb/A if no-till or strip-till is used. To override MMP's default N rec, enter the override value in the Custom N Rec column on the Crops panel and document the value in the Source Of Custom Fertilizer Recommendation column.
5. With alfalfa, enter a value greater than 70 for the crop's Legume % Stand if there are more than 4 alfalfa plants per square foot. If there are 3-4 alfalfa plants per square foot, enter a value in the range 51-70. If there are 1-2 alfalfa plants per square foot, enter a value in the range 30-50. If there is less than 1 alfalfa plant per square foot, enter a value less than 30.

- Tennessee

1. In calculating N recommendations, MMP assumes 2 tons per cutting with bermuda hybrid hay, timothy and orchardgrass. MMP also assumes there will be a second cutting if the yield goal is greater than 2 tons/acre with grass-clover hay or greater than 3 tons/acre with grass hay.
2. For alfalfa, enter a value in the range 70-100 for the crop's Legume % Stand if there are more than 4 alfalfa plants per square foot. If there are 1.5 to 4 alfalfa plants per square foot, enter a value in the range 30-70 for Legume % Stand.
3. MMP's fert recs for grass-clover pasture, grass-clover hay, and grass hay (maintenance recs only) assume no fall stockpiling of fescue. For fall stockpiling of fescue, increase the N fert rec by 60 Lb (15 Lb with grass pasture) and enter the new rec in the crop's Custom N Rec column.
4. For pasture and hayland renovation, select an establishment (new) crop.
5. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the HydGrp column is the soil's hydrologic group.

- Texas

Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class. The value in the TFact column is the soil tolerable loss factor, in tons/acre/year.

- Utah

1. If soil test nitrate data is entered (NO3-N), MMP uses it for N fertilizer recommendations for all years of the plan. If no soil nitrate value is entered for a field, MMP assumes 0 nitrate credit.
2. MMP requires that nitrate (NO3-N) soil test data be entered in units of ppm. If you are entering soil nitrate values that are in Lb/A, divide each value by 3.5 to get the appropriate value in ppm. This assumes the soil was sampled to a depth of 12".
3. With irrigated wheat crops, be sure to check the field's Irrigated With Water box on the Fields panel; for dryland wheat, leave this box unchecked.
4. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the HWT column is the soil's high water table depth, in centimeters. The value in the Drainage column is the soil's drainage class. The value in the HydGrp column is the soil's hydrologic group. The value in the AWC column is the soil's available water capacity in top 5 feet of soil or to depth of restriction layer, whichever is less (in inches).

- Vermont

1. Vermont Extension fertilizer recommendations assume that the Modified Morgan extraction was used to determine soil test levels. If you have Modified Morgan soil test results from A&L Eastern Laboratories or Spectrum Analytic, be sure to obtain the aluminum soil test results from the lab. You must enter the Al soil test value to get a P2O5 fert rec.
2. Silage and haylage yields should be entered as wet weights (65% moisture). This includes corn silage, small grain silage, forage sorghum, and sorghum/sudangrass. Hay and pasture yields should be entered as dry weights (one ton dry hay = 2.5 tons haylage).
3. For typical manure analyses, refer to Table 14 in "Nutrient Recommendations for Field Crops in Vermont," University of Vermont Extension, Br. 1390, March 2004.
4. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class. The value in the HydGrp column is the soil's hydrologic group.

- Virginia

1. Select the appropriate soil testing lab in the P Test Used column on the Soil Tests panel. If you leave the P Test Used column blank for a field, MMP assumes that the soil test data are Virginia Tech Mehlich-1.
2. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class.

The value in the HydGrp column is the soil's hydrologic group.

The value in the Mgmt Group column is the soil's management group (A through QQ).

The value in the Corn Prod. column is the soil's corn productivity (Ia, Ib, IIa, IIb, IIIa, IIIb, IVa, IVb, V).

The value in the Sorghum Prod. column is the soil's sorghum productivity (Ia, Ib, IIa, IIb, IIIa, IIIb, IVa, IVb, V).

The value in the Alfalfa Prod. column is the soil's alfalfa productivity (I, II, III, NS).

The value in the GHP Prod. column is the soil's tall-grass hay/pasture productivity (I, II, III, IV, NS).

- Washington

1. MMP assumes the Bray P1 soil test is used in counties west of the Cascades and the Olsen P soil test is used in counties east of the Cascades. If you leave the P Test Used column blank on the Soil Tests panel, MMP assumes that the field's soil test P level was determined by the appropriate P test for the operation's county. If you select the wrong P test for the county's region, or if no fertilizer recommendations are available for the county's region, the default fertilizer recommendations on the Crops panel will be blank.
2. For soil test P and K, enter your levels as ppm for a 12" sample depth.
3. For pastures on dairies west of the Cascades, select the appropriate forage crop (tall fescue, orchardgrass, perennial ryegrass, annual ryegrass). The pasture crops listed are for beef and sheep.
4. Enter corn silage yields as wet tons at 65% moisture. Enter oat haylage yields as wet tons at 60% moisture. Enter yields for hay and pasture crops as tons of dry matter. See the Crops panel help for tips on converting yields to a specific moisture content. Refer to Oregon State Extension publication EM8585 for typical forage yields.
5. Fertilizer recommendations for corn west of the Cascades assume 20,000 plants/acre. Refer to Oregon State Extension publication FG10 for adjusting fertilizer recommendations for different populations. Fertilizer recommendations for corn east of the Cascades assume 25,000 to 30,000 plants/acre and yields of at least 150 bushels per acre. Refer to Oregon State Extension publication FG71 for adjusting fertilizer recommendations for different populations or yield goals.
6. MMP requires nitrate soil test data for calculating N recommendations for many crops east of the Cascades. Enter the average ppm of nitrates for the assumed sample depth (see below). If your nitrate soil test data is in Lb/A of nitrates, divide the value by the indicated divisor to get the equivalent ppm. If you have ppm values for more than one depth, average them using MMP's Soil Test Nitrate Calculator.
7. With spring-planted small grains on muck and peat soils east of the Cascades, be sure to enter the soil test organic matter percent.
8. With grass pastures east of the Cascades, you can increase the N rec for lower altitude, longer growing season areas. Enter the higher N rec in the Custom N Rec column on the Crops panel. See Oregon State Extension publication FG21 for more information.
9. With established tall fescue seed and perennial ryegrass seed, MMP's K recs assume that straw is baled and removed. If straw is burned or chopped, you can decrease the K2O rec by 25 to 50 Lb/A. Enter the lower K2O rec in the Custom K2O Rec column on the Crops panel.
10. With onions, MMP's P recs assume 0% soil lime concentration and not fumigated before planting. You can increase the P rec by 8 Lb/A for each percent of free lime. You can also increase the P rec by 40 Lb/A if fumigated before planting. Enter the higher P rec in the Custom P2O5 Rec column on the Crops panel. See publication PNW546 for more information.
11. No fert recs are available for sugar beets or dry edible beans. With these crops, enter your own recs in the Custom Rec columns on the Crops panel.
12. With irrigated crops, be sure to check the field's Irrigated With Water box on the Fields panel; for dryland crops, leave this box unchecked.
13. P fertilizer recommendations for most crops assume a banded application. Refer to the fertilizer recommendation's source publication for any increases to make if the P fertilizer will be broadcast.
14. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class. The value in the Annual Flooding column is the soil's annual flooding frequency class. The value in the HydGrp column is the soil's hydrologic group.

- West Virginia

1. MMP assumes the Bray P1 soil test is used in counties west of the Cascades and the Olsen P soil test is used in counties east of the Cascades. If you
2. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Annual Flooding column is the soil's annual flooding frequency class. The value in the HydGrp column is the soil's hydrologic group. The value in the Mgmt Group column is the soil's management group (A through QQ).

The value in the Corn Prod. column is the soil's corn productivity (Ia, Ib, IIa, IIb, IIIa, IIIb, IVa, IVb, V).

The value in the Sorghum Prod. column is the soil's sorghum productivity (Ia, Ib, IIa, IIb, IIIa, IIIb, IVa, IVb, V).

The value in the Alfalfa Prod. column is the soil's alfalfa productivity (I, II, III, NS).

The value in the GHP Prod. column is the soil's tall-grass hay/pasture productivity (I, II, III, IV, NS).

The value in the Sensitivity column is the soil's environmental sensitivity rating (Low, Moderate, High).

Soils with a Moderate or High Sensitivity rating will have a value in the Limitation column which indicates the limitation (leaching, shallow, drainage, wetness) that resulted in that rating.

- Wisconsin

1. Corn N recs were determined by version 1.8 of the Corn Nitrogen Rate Calculator: http://cnrc.agron.iastate.edu/nRate.aspx

Values given in MMP represent the MRTN N rate using a nitrogen to corn price ratio of 0.10.

To override MMP's default N rec (for example, to use a newer version of the calculator or a different price ratio), enter the override value in the Custom N Rec column on the Crops panel and document the value in the Source Of Custom Fertilizer Recommendation column.

2. With alfalfa, red clover, and birdsfoot trefoil, enter a value for the crop's Legume % Stand greater than 70 for a good stand, 30-70 for a fair stand, or less than 30 for a poor stand

3. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the HydGrp column is the soil's hydrologic group. The value in the Subsoil Fertility column is the soil's subsoil fertility group for use in the Wisconsin Phosphorus Index. The value in the Soil Yld Pot. column is the soil's corn yield potential. The value in the Soil Group column is the soil's group. These latter two values are used in generating Wisconsin Extension fertilizer recommendations. The possible values for Subsoil Fertility are as follows:
   • A = southern "forested" medium- and fine-textured soils
   • B = southern "prairie" medium- and fine-textured soils
   • C = red medium- and fine-textured soils
   • D = northern medium- and fine-textured soils
   • E = sandy coarse-textured soils - sands and loamy sands
   • O = organic soils - mucks and peats

4. The possible values for Soil Yld Pot. are as follows:
   • High
   • Medium
   • Sandy

5. The possible values for Soil Group are as follows:
   • Loamy
   • Organic
   • Sandy

- Wyoming

1. Wyoming phosphorus fertilizer recommendations assume that the Olsen P test was used.
2. You must enter soil test nitrate data (NO3-N) for MMP to calculate nitrogen fertilizer recommendations. MMP uses it for N fert recs for all years of the plan.
3. MMP requires that nitrate (NO3-N) soil test data be entered in units of ppm and assumes the soil was sampled to a depth of 24".
4. If you leave soil test Lime blank, MMP assumes the soil is not a high lime soil.
5. For barley, corn grain, corn silage, millet, oats, potato, safflower, sorghum-sudan, sugar beet, sunflower and wheat grown above 6,000 feet, reduce the default N rec by OM x 20 and enter the reduced value in the Custom N Rec column on the Crops panel.
6. For grass/legume, be sure to enter the percent of the stand that is legume on the Crops panel.
7. Clicking the Soil Info button on the Fields panel generates the Information About Soils report for the counties selected in the plan. The value in the Drainage column is the soil's drainage class. The value in the Perm column is the soil's permeability class.