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Nutrient Management Workbook 2009

Nutrient Management Workbook 2009. Jon Rausch, Amanda Meddles & Robert Mullen Ohio State University Extension. MSR Agenda Today. 9:00 Introduction & Welcome Workbook overview 10:30 Break (pick-up pencil + calculator) Work nutrient management example

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Nutrient Management Workbook 2009

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  1. Nutrient Management Workbook 2009 Jon Rausch, Amanda Meddles & Robert Mullen Ohio State University Extension

  2. MSR Agenda Today • 9:00 Introduction & Welcome Workbook overview • 10:30 Break • (pick-up pencil + calculator) Work nutrient management example Complete field plan for your farm • Noon Lunch

  3. Objective • Development a nutrient management plan for each field of the farming operation. • Focus on those utilizing animal manure. Take Home: • General understanding of this Nutrient Management Workbook • Steps toward and approved Nutrient Management Plan

  4. Outline • Identify available soil resources. • Identify manure nutrients available. • Identify the nutrient needs of growing crop. • Identify sources of nutrients available for that crop. • Allocate and balance available nutrients by field. • Estimate nutrient carry-over, if any, and the value of that carry-over. • Identify spreadable acres available for manure application. • Estimate number of acres needed to recycle manure nutrients generated by your operation. • Identify steps toward an approved plan.

  5. Heritage Lane Dairy 2009

  6. Example Farm Throughout the book an example is provided based on a farm that is currently milking 100 dairy cows and has 200 acres. This farm has a rotation of corn, soybeans, wheat, and alfalfa and fertilizes his fields with manure from the dairy operation. This is supplemented with commercial fertilizer when necessary. The field used throughout this book as an example is Brown 1 or B1. It is 30 acres and will be planted in corn. The previous crop was soybeans. Examples based on this scenario can be found in different sections throughout the book in gray boxes like this one. Page 1

  7. Soils/Field Data OSU Fact Sheet: Soil Sampling, Handling & Testing Field Plan EXAMPLE A Field Information B1 Brown Corn 160 bu/ac Soybeans Silt Loam 30 ac lb/ac lb/ac 20 30 250 Meq/100g ppm ppm

  8. Soil Test-Preferred

  9. Yield response NOT likely Yield response likely Increasing 

  10. Soil Test Critical Values

  11. No Soil Test Assumes maintenance level Page 2

  12. Example Farm Winter application see page 17

  13. Manure Test-Preferred 14

  14. Manure Nutrients Example This dairy example uses book values, due to a lack of manure test results, from Table 1 of 6 lb/1,000 gal of NH3-N, 25 lb/1,000 gal of Organic N (ON), 15 lb/1,000 gal of P2O5 and 19 lb/1,000 gal of K2O which will be applied in September and incorporated within 1 day. PAN: (25 x .33) + (6 x .25) = 9.75 lb/1,000 gal P2O5: 15 lb/1,000 gal K2O: 19 lb/1,000 gal PAN is Plant Available Nitrogen. This is the amount of Nitrogen available to the crop based on time of application and method of application. Page 3

  15. Page 3-4

  16. Time of Year page 5

  17. Calculating PAN- Example Farm Test 1 25% 7.57 33% 5.88 13.46 60% diff. PAN worksheet top of page 3

  18. Example Farm Winter (Frozen & Snow Covered) application see page 17

  19. Example Nutrient Worksheet C Crop Nutrient Needs 60 65 160 -6 -20 -0 E Additional Nutrients Needed 154 40 65 F Manure Application Rate ton/ac gal/ac 13,000 G Manure Nutrients Applied -127 -195 -247 H Additional Nutrients Applied 0 0 0 2.6 2.8 I Crop Nutrient Balance* 27 -155 -182 D Starter Fertilizer Applied J Years to Next Nutrient Application

  20. Example Farm Example A dairy farmer expects 160 bu/ac of grain corn in field B1. The previous crop was soybeans. Nutrient recommendations without soil test values are: PAN: 160 lb/ac P2O5: 60 lb/ac K2O: 65 lb/ac Page 5

  21. Corn Silage use 1T/ac = 6 bu/ac; 160 bu/ac = 26.6 T/ac silage Page 6

  22. P2O5 Recommendation Page 6-8

  23. Page 8-10

  24. Example Nutrient Worksheet C Crop Nutrient Needs 60 65 160 -6 -20 -0 E Additional Nutrients Needed 154 40 65 F Manure Application Rate ton/ac gal/ac 13,000 G Manure Nutrients Applied -127 -195 -247 H Additional Nutrients Applied 0 0 0 2.6 2.8 I Crop Nutrient Balance* 27 -155 -182 √ D Starter Fertilizer Applied J Years to Next Nutrient Application

  25. Example - Liquid Fertilizer (used in this example) 5 gal/ac of 10-34-0 are applied at planting. The fertilizer contains 10% PAN, 34% P2O5, and 0% K2O. The application rate is 5 gal/ac x 11.7 lb/gal = 58.5 lb/ac. PAN: 58.5 lb/ac x 10% = 6 P2O5: 58.5 lb/ac x 34% = 20 K2O: 58.5 lb/ac x 0% = 0 Example - Dry Fertilizer Diammonium phosphate has a blend of (18-46-0) applied at 150 lb/ac. The fertilizer contains 18% PAN, 46% P2O5 and 0% K2O. PAN: 150 lb/ac x 18% = 27 lb/ac P2O5: 150 lb/ac x 46% = 69 lb/ac or 14 lbs/ac K2O: 150 lb/ac x 0% = 0 lb/ac

  26. Nutrient Worksheet C Crop Nutrient Needs 60 65 160 -6 -20 -0 E Additional Nutrients Needed 154 40 65 F Manure Application Rate ton/ac gal/ac 13,000 G Manure Nutrients Applied -127 -195 -247 H Additional Nutrients Applied 0 0 0 2.6 2.8 I Crop Nutrient Balance* 27 -155 -182 √ D Starter Fertilizer Applied J Years to Next Nutrient Application

  27. Nutrient Worksheet C Crop Nutrient Needs 60 65 160 -6 -20 -0 E Additional Nutrients Needed 154 40 65 F Manure Application Rate ton/ac gal/ac 13,000 G Manure Nutrients Applied -127 -195 -247 H Additional Nutrients Applied 0 0 0 2.6 2.8 I Crop Nutrient Balance* 27 -155 -182 √ √ D Starter Fertilizer Applied J Years to Next Nutrient Application

  28. Nutrient Worksheet C Crop Nutrient Needs 60 65 160 -6 -20 -0 E Additional Nutrients Needed 154 40 65 F Manure Application Rate ton/ac gal/ac 13,000 G Manure Nutrients Applied -127 -195 -247 H Additional Nutrients Applied 0 0 0 2.6 2.8 I Crop Nutrient Balance* 27 -155 -182 √ √ √ D Starter Fertilizer Applied J Years to Next Nutrient Application

  29. Example The dairy farmer decides to base his application rate on the nitrogen need of the corn crop. Field B1 needs 154 lb/ac of PAN (from E: Additional Nutrients Needed) and the manure has a value of 9.75 lb/1000 gal or 0.00975 lb/gal . PAN Application Rate = 154 lb/ac / 0.00975 lb/gal = 15,794 gal/ac If he chose to use P2O5: 40 lb/ac / 0.015 lb/gal = 2,700 gal/ac If he chose to use K2O: 65 lb/ac / 0.019 lb/gal = 3,421 gal/ac Page 12 See also: NRCS-633, Table 4, page 13

  30. Determining Application Rate

  31. Manure Nutrients

  32. Nutrient Worksheet C Crop Nutrient Needs 60 65 160 -6 -20 -0 E Additional Nutrients Needed 154 40 65 F Manure Application Rate ton/ac gal/ac 13,000 G Manure Nutrients Applied -127 -195 -247 H Additional Nutrients Applied 0 0 0 2.6 2.8 I Crop Nutrient Balance* 27 -155 -182 √ √ √ √ D Starter Fertilizer Applied J Years to Next Nutrient Application

  33. Manure Nutrients Applied Example Manure Nutrient Values for field B1 are 11.25 lb/1000 gal of PAN, 15 lb/1000 gal P2O5, and 19 lb/1000 of K2O. Dividing these by 1000 to achieve lb/gal or a PAN of 0.01125 lb/gal, P2O5 of 0.015 lb/gal, and K2O of 0.019 lb/gal. The application rate calculated previously is 15,794 gal/ac but 13,000 gal/ac was applied. PAN: 0.00975 lb/gal x 13,000 gal/ac = 127 lb/ac P2O5: 0.015 lb/gal x 13,000 gal/ac = 195 lb/ac K2O: 0.019 lb/gal x 13,000 gal/ac = 247 lb/ac Page 13

  34. Nutrient Worksheet C Crop Nutrient Needs 60 65 160 -6 -20 -0 E Additional Nutrients Needed 154 40 65 F Manure Application Rate ton/ac gal/ac 13,000 G Manure Nutrients Applied -127 -195 -247 H Additional Nutrients Applied 0 0 0 2.6 2.8 I Crop Nutrient Balance* 27 -155 -182 √ √ √ √ D Starter Fertilizer Applied J Years to Next Nutrient Application

  35. Nutrient Worksheet C Crop Nutrient Needs 60 65 160 -6 -20 -0 E Additional Nutrients Needed 154 40 65 F Manure Application Rate ton/ac gal/ac 13,000 G Manure Nutrients Applied -127 -195 -247 H Additional Nutrients Applied 0 0 0 2.6 2.8 I Crop Nutrient Balance* 27 -155 -182 √ √ √ √ √ D Starter Fertilizer Applied J Years to Next Nutrient Application

  36. Additional Nutrients • PSNT: Pre Side-dress Nitrogen Test • Applicable for fields with history of manure application • Designed to capture ON cycling • Sample just prior to side-dress N application • Indicator of NO3-N + NH4-N available • 30 ppm sufficient PAN, low probability of yield response with additional N • 0 – 30 ppm, higher probability of yield response with additional N Page 13

  37. Nutrient Worksheet C Crop Nutrient Needs 60 65 160 -6 -20 -0 E Additional Nutrients Needed 154 40 65 F Manure Application Rate ton/ac gal/ac 13,000 G Manure Nutrients Applied -127 -195 -247 H Additional Nutrients Applied 0 0 0 2.6 2.8 I Crop Nutrient Balance* 27 -155 -182 √ √ √ √ √ √ D Starter Fertilizer Applied J Years to Next Nutrient Application

  38. Nutrient Worksheet C Crop Nutrient Needs 60 65 160 -6 -20 -0 E Additional Nutrients Needed 154 40 65 F Manure Application Rate ton/ac gal/ac 13,000 G Manure Nutrients Applied -127 -195 -247 H Additional Nutrients Applied 0 0 0 2.6 2.8 I Crop Nutrient Balance* 27 -155 -182 √ √ √ √ √ √ √ D Starter Fertilizer Applied J Years to Next Nutrient Application

  39. Nutrient Worksheet Page 14

  40. Nutrient Carry-over • Apply based on N needs of crop when applicable and P for rotation. • 2.6 year carry-over means the need for more P is not likely for 2-3 years, but dependant upon crop rotation and soil test level.

  41. Nutrient Worksheet C Crop Nutrient Needs 60 65 160 -6 -20 -0 E Additional Nutrients Needed 154 40 65 F Manure Application Rate ton/ac gal/ac 13,000 G Manure Nutrients Applied -127 -195 -247 H Additional Nutrients Applied 0 0 0 2.6 2.8 I Crop Nutrient Balance* 27 -155 -182 √ √ √ √ √ √ √ √ D Starter Fertilizer Applied J Years to Next Nutrient Application

  42. Nutrient Worksheet 28.9 ac. L Value of Excess Nutrients Applied $11,833.11 375,700 gal 597,390 gal K M Spreadable Acreage (field sketch on back) Manure Storage Management Volume Applied = Volume Remaining =

  43. Backside of worksheet

  44. Common Set-backs Page 15

  45. Nutrient Worksheet 28.9 ac. L Value of Excess Nutrients Applied $11,833.11 375,700 gal 597,390 gal √ K M Spreadable Acreage (field sketch on back) Manure Storage Management Volume Applied = Volume Remaining =

  46. $1,657 $3,419 $5,076 Fertilizer value used June ‘09: Urea = $420/ton = $0.46/lb N DAP $500/ton = $0.37/lb P2O5 Potash $770/ton = $0.65/lb K2O Page 18

  47. Nutrient Worksheet 28.9 ac. L Value of Excess Nutrients Applied $11,833.11 375,700 gal 597,390 gal √ √ $5,076 K M Spreadable Acreage (field sketch on back) Manure Storage Management Volume Applied = Volume Remaining =

  48. Page 19

  49. Page 20

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