Recordkeeping Manure and Fertilizer. Marilyn L. Thelen, Educator MSU Extension

Transcription

1 Recordkeeping Manure and Fertilizer Marilyn L. Thelen, Educator MSU Extension

2 What is a Nutrient Management Plan? Managing the amount, source, placement, form and timing of the application of nutrients and soil amendments. (NRCS 590 Standard)

3 Records back up the plan What was planned What was done? Did things change? Why?

4 Nutrients come in many different shapes and sizes!! But all have the same components Records document the Amount Source Placement Form Timing Of all FORMS of fertilizer!

5 Records Required by GAAMPs Manure Nutrient Management

6 Yearly records will be kept on the following: Soil test results (three years old or less) on all fields where manure will be applied; Manure analysis (most recent); Manure and fertilizer spreading by field (where, when, how much, weather conditions, etc.); Crops grown and yield data; Date of spreader calibration; and Cropping plan. Manure GAAMPs VIII. Manure Recordkeeping System

7 Maintain records of soil test reports and quantities of nutrients applied to individual fields. Most recent soil fertility test(s) and/or plant tissue analysis reports; Previous crop grown and yield harvested; Date(s) of nutrient application(s); Nutrient composition of fertilizer Or Amount of nutrientsupplying material applied per acre; Method of application and placement of applied nutrients The name of the individual responsible for fertilizer applicator calibration, and the dates of calibration Vegetative growth and cropping history of perennial crops. Nutrient GAAMPs

8 Manure Nutrient Loadings The agronomic (fertilizer) rate of N recommended for crops (consistent with Michigan State University N fertilizer recommendations) should not be exceeded by the amount of available N added, either by manure applied, or by manure plus fertilizer N applied, and/or by other N sources. For legume crops, the removal value of N may be used as the maximum N rate for manure applications. The available N per ton or per 1000 gallons of manure should be determined by using a manure analysis and the appropriate mineralization factors (see Manure Management Sheet #2, MSUE Bulletin E-2344 by Jacobs et al., 1992b) for organic N released during the first growing season following application and the three succeeding growing seasons.

9 Manure Nutrient Loading (cont) If the Bray P1 soil test level for P reaches 150 lb/acre2 (75 ppm), manure applications should be managed at an agronomic rate where manure P added does not exceed the P removed by the harvested crop. (If this manure rate is impractical due to manure spreading equipment or crop production management, a quantity of manure P equal to the amount of P removed by up to four crop years may be applied during the first crop year. If no additional fertilizer or manure P is applied for the remaining crop years, and the rate does not exceed the N fertilizer recommendations for the first crop grown). If the Bray P1 soil test reaches 300 lb/acre (150 ppm) or higher, manure applications should be discontinued until nutrient harvest by crops reduces P test levels to less than 300 lb/acre. To protect surface water quality against discharges of P, adequate soil and water conservation practices should be used to control runoff, erosion and leaching to drain tiles from fields where manure is applied.

10 What to look for in fertilizer records Crop production plan/rotations Results of soil tests Results of manure tests Yield potential for crops All nutrient applied Rate-source-timing-placement Calibration records

11 Fertilizer Application Worksheet Field Crop to be grown Previous Crop Yield Goal Pounds/acre N P2O5 K20 Nutrient Requirements - MSU Recommendations based on current soil test Less Legume credit Total N-P-K required Nutrients Applied Pounds/acre Type Analysis Rate N P 2 O 5 K 2 0 Manure applied (type, amount) Other organic Nutrient sources Fall Applied Fertilizer Pre-plant fertilizer Starter Fertilizer Supplemental N Total N-P-K applied per acre N-P-K surplus (+) of deficiency (-) Notes: Documment discussion on difference between recommended and applied.

12 Fertilizer Application Worksheet Field Ma's farm Crop to be grown Corn Previous Crop soybeans Yield Goal 150 bu/a Pounds/acre N P2O5 K20 Nutrient Requirements - MSU Recommendations based on current soil test Less Legume credit Total N-P-K required Nutrients Applied Pounds/acre Type Analysis Rate N P 2 O 5 K 2 0 Manure applied (type, amount) Other organic Nutrient sources Fall Applied Fertilizer Potash Pre-plant fertilizer Starter Fertilizer starter 2x gal #/gal * 10 gal = 115#/a Supplemental N sidedress gal #/gal * 30 gal = Total N-P-K applied per acre N-P-K surplus (+) of deficiency (-) Notes: Documment discussion on difference between recommended and applied. Applied K for multiple years.

13 Fertilizer Application Worksheet Field Grandpa's 40 Crop to be grown Corn Previous Crop wheat Yield Goal 180 bu/a Pounds/acre N P2O5 K20 Nutrient Requirements - MSU Recommendations based on current soil test Less Legume credit Total N-P-K required Nutrients Applied Pounds/acre Type Analysis Rate N P 2 O 5 K 2 0 Manure applied (type, amount) Dairy #/1000 gal ga/a Other organic Nutrient sources Fall Applied Fertilizer Pre-plant fertilizer Starter Fertilizer Supplemental N Total N-P-K applied per acre N-P-K surplus (+) or short (-) Notes: Documment discussion on difference between recommended and applied. manure injected. only apply manure before corn.

14 6000gal Inject 39 lbs/1000 gal

15 Fertilizer Application Worksheet Field Grandpa's 40 Crop to be grown Corn Previous Crop wheat Yield Goal 180 bu/a Pounds/acre N P2O5 K20 Nutrient Requirements - MSU Recommendations based on current soil test Less Legume credit Total N-P-K required Nutrients Applied Pounds/acre Type Analysis Rate N P 2 O 5 K 2 0 Manure applied (type, amount) Dairy #/1000 gal ga/a Other organic Nutrient sources Fall Applied Fertilizer Pre-plant fertilizer Starter Fertilizer Supplemental N Total N-P-K applied per acre N-P-K surplus (+) or short (-) Notes: Documment discussion on difference between recommended and applied. manure injected. only apply manure before corn.

16 Sample Problems... Fertilizer Records Soil Test Manure sample/worksheet 6000 gal/a Broadcast, incorporated in 3 days PSNT 40# N / acre needed

17 Take 10 minutes to Analyze the records

18 Fertilizer Application Worksheet Field Example 1 Crop to be grown Corn Previous Crop Wheat Yield Goal 180 Pounds/acre N P2O5 K20 Nutrient Requirements - MSU Recommendations based on current soil test Less Legume credit Total N-P-K required Nutrients Applied Pounds/acre Type Analysis Rate N P 2 O 5 K 2 0 Manure applied (type, amount) Dairy see report 6000 ga/a Other organic Nutrient sources Fall Applied Fertilizer Pre-plant fertilizer Starter Fertilizer 28% gal Supplemental N 28% gal Total N-P-K applied per acre N-P-K surplus (+) or short (-) Notes: Documment discussion on difference between recommended and applied.

19 6000gal BC inc 3 d 39 lbs/1000 gal

20 Not always as we plan Crop Plan Records Analysis Discussion Tell the story of what actually occurred

21 Before you call the for Verification Know the whole story! It is not enough to just have records we need to know what the records are telling us.

22 Questions Marilyn Thelen, MSU Extension