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Nutrient Management Planning Workbook

Nutrient Management Planning Workbook. Kim Meyer UW-Nutrient and Pest Management Program. Sample Farm. Hilltop Acres Farm Operator = Fred Johnson Dairy Farm with 65 milking cows Daily haul Operates 170 acres of cropland

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Nutrient Management Planning Workbook

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  1. Nutrient Management Planning Workbook Kim Meyer UW-Nutrient and Pest Management Program

  2. Sample Farm • Hilltop Acres Farm • Operator = Fred Johnson • Dairy Farm with 65 milking cows • Daily haul • Operates 170 acres of cropland • Grows corn for grain and silage, oatlage with alfalfa seeding, alfalfa, and wheat • Typical tillage is fall chisel, no disk

  3. Manure Crediting 21 65 3 4.0 12 12 24 2 12 3 36 12 5 60

  4. Legume Credits 1. What is the legume credit for the first year?

  5. Legume Credits 2. Can a second year legume credit be taken?

  6. Legume Credits 3. Can you take a second year legume credit from alfalfa that is in poor condition at the time of kill?

  7. Spreading Restrictions The next 8 questions pertain to the 590 restrictions which are symbolized on 590 maps:

  8. Spreading Restrictions NO YES 1. If a field that is NOT contour plowed and has a pink slope area covering the majority of the field, can winter manure be spread on this field? What if the field was contour plowed?

  9. Spreading Restrictions No spreading of winter manure 2. How does a red slope effect winter spreading?

  10. Spreading Restrictions 1,000 300 3. A Surface Water Quality Management Area (SWQMA) is an area within: _______ feet from a lake or pond, and _______ feet from a stream or river

  11. Spreading Restrictions YES YES 4. Can a field within a SWQMA be spread on during the spring or fall? If so, are there any additional restrictions that must be followed?

  12. Spreading Restrictions It identifies a nitrogen restricted soil which has additional spreading restrictions, particularly in the fall 5. If a field has a speckled area, what does this mean?

  13. Spreading Restrictions 90 lb N/ac 6. How many lbs of nitrogen from manure can be spread on a speckled area in the fall if soil temperatures are higher than 50˚F (after Sept 15)?

  14. Spreading Restrictions YES May apply up to 30 lb N/ac 7. On N restricted soils, can you apply commercial nitrogen fertilizer in the fall on fall-seeded crops? If so, what is the restriction?

  15. Spreading Restrictions NO 8. Can you spread manure on fields within 50 feet of a residential well?

  16. Spreading Restrictions 1. Winter Restrictions? 2. Nitrogen Restrictions? 3. Fields in a SWQMA? 4. Well within 50’ of a field edge? NO

  17. Spreading Restrictions NO 5. Are there any applications that you may need to adjust for the plan year according to the season because of spreading restrictions?

  18. Fertility Recommendations Wheat Corn grain Chart from page 9

  19. Fertility Recommendations Wheat Corn grain 21 6.2 126 Results from page 11

  20. Fertility Recommendations Recommendations from page 11, corn after wheat Wheat high 116 24 140 0 Corn grain 191-210 36 75 39 21 6.2 0 60 60 126 X X X X

  21. Fertility Recommendations • What you know: • Adjusted recommendation for determining fertilizer needs is 116-39-0 • Products Fred uses: • Starter 9-23-30 (typically 150 lb/ac) • 28% UAN (28-0-0) • DAP (18-46-0) • Potash (0-0-60) What would you recommend for fertilizer?

  22. Fertility Recommendations Recommendation Less Starter Fertilizer Remaining Need Current Recommendation = 116-39-0 150 lbs/ac of 9-23-30 = 13-34-45 40 gal/ac of 28% UAN = 112-0-0

  23. Fertility Recommendations • Page 12 & 13: • Fields are sorted by crop • Determine application rates by crop type based on the reports provided • Hint:negative numbers identify where N, P, or K is needed • Use the following fertilizers= • Starter 9-23-30 • 28% UAN (28-0-0) • DAP (18-46-0) • Potash (0-0-61)

  24. Fertility Recommendations • Complete the fertilizer recommendation on pages 12-13 • All manure and legumes have been credited, use adjusted recommendations shown • Remember to keep your application method in mind when you determine how many application rates you want to use of each product needed

  25. Fertilizer Quiz How many lbs of nitrogen are in 100 lbs of urea (46-0-0)? How many lbs of phosphorus are in 100 lbs of DAP (18-46-0)? How many lbs of nitrogen are in 10 gal of 28% UAN (28-0-0)?

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