Introduction

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Introduction

  1. 1. Introduction to Nutrient Management Planning<br />What is a Nutrient Management Plan?<br />&Why Prepare a Nutrient Management Plan?<br />University of Wisconsin - Extension<br />UW-Madison College of Agricultural & Life Sciences<br />
  2. 2. Nutrient management<br />Combines on-farm nutrient sources, with commercial fertilizer, to meet crop need<br />On-farm nutrient sources<br /> (manure and legumes)<br />Commercial fertilizer<br />Minimize nutrient losses<br />
  3. 3. Nutrient management strategy<br />Measure current soil fertility levels<br />Determine crop nutrient needs<br />Account for on-farm nutrient sources<br />Manure applications<br />Legumes in crop rotation<br />Residual soil nitrate<br />Adjust commercial fertilizer application rates<br />
  4. 4. Nutrient management economics<br />Deliberate management decisions; how to meet crop nutrient needs across the whole farm.<br />Best use of commercial fertilizer, manure and legume N products – amounts – timings, etc.<br />Account for and properly use on-farm nutrients:<br />Credit N-P-K in livestock manure applications,<br />Credit N from rotated legume crops.<br />Best use and allocation of nutrient dollars ($$$) for profitable crop production.<br />
  5. 5. Manure & legume credit economics<br />Fertilizer prices based on a Feb 2010 survey by UW-Extension:<br />N= $ 0.44/lb; K2O = $ 0.39/lb.<br /><ul><li>100 Cow Dairy
  6. 6. Alfalfa N = $ 3,960
  7. 7. (100 acres/yr @ 90 lbs N/a)
  8. 8. Manure N = $ 3,564
  9. 9. (27 tons/cow/year @ 3 lbs N/ton)
  10. 10. Manure K2O = $ 7,371
  11. 11. (27 tons/cow/year @ 7 lbs K2O/ton)
  12. 12. Total On-Farm N & K2O = $14,895/yr</li></li></ul><li>Wisconsin’s water quality concerns<br />Nitrate is the most common found groundwater contaminant.<br />Phosphorus in surface water runoff degrades lakes and streams.<br />
  13. 13. Sources of nutrients thatcan enter groundwaterand surface water<br />Natural background levels (<2 ppm nitrate-N)<br />Septic systems<br />Urban fertilizer use<br />Municipal and industrial discharge<br />Agricultural nutrient use<br />Commercial fertilizer <br />Manure, legumes, & others<br />
  14. 14. Regulatory reasons for nutrient management plans<br />USDA - Nutrient Management Standard (590)<br />WDATCP Cost-sharing & Farmland Preservation Program<br />USDA - NRCS EQIP & CSP Programs<br />NR 243<br />WPDES Permits<br />Notice Of Discharge (NOD)<br />EPA / USDA / WDNR – 303(d) Listed Waters (TMDL) Program<br />Local Ordinances<br />
  15. 15. Nutrient management planbasic components<br />Soil Test Reports<br />Manure Inventory<br />Nutrient Crediting <br />Manure, Legumes, Other (sludge, whey, etc.) <br />Manure Spreading Plan <br />Soil Conservation Plan<br />
  16. 16. Critical landscape areas and nutrient management planning<br />ID Areas With Manure/Nutrient<br />Spreading Restrictions<br /><ul><li>Slopes greater than 9 or 12%
  17. 17. Waterways
  18. 18. Frozen or snow-covered ground restrictions:
  19. 19. Within 1000 ft of lake, pond, or flowage
  20. 20. Within 300 ft of river or stream
  21. 21. 200 ft uphill of direct groundwater conduits
  22. 22. - wells, sinkholes, fractured bedrock, etc.
  23. 23. Locally identified areas of concern</li></li></ul><li>Nutrient management plans need descriptive words<br />Provide Narrative <br /><ul><li>Explain deviations from the 590 standard
  24. 24. Explain manure application restrictions
  25. 25. - No winter spreading
  26. 26. - Critical areas
  27. 27. - Surface water setbacks
  28. 28. Verify farms ability to utilize produced manure
  29. 29. - Available land, manure spreading agreements, etc
  30. 30. Identify fertilizer and lime recommendations</li></li></ul><li>With proper supporting documentation, nutrient management plans can be developed using paper & pencil or computer software.<br />Crop Nutrient Need - Manure and Legume Credits = Adjusted Crop Nutrient Need<br />
  31. 31. SNAP-Plus computer software<br />Available for free at www.snapplus.net<br />
  32. 32. Who to contact for assistance and information<br />County UW-Extension Office<br />County Land Conservation Departments<br />WI Technical Colleges<br />Private Crop Consultants<br />Nutrient and Pest Management Program (http://ipcm.wisc.edu/)<br />UW-Discovery Farms Program<br /> (http://uwdiscoveryfarms.org)<br />
  33. 33. Nutrient Management<br />Implement the plan<br />A nutrient management plan, on paper or contained within a computer program, is only the beginning.<br />Nutrient management needs to make sense and be practical enough that producers will put it into practice on their land – within their farm operation.<br />University of Wisconsin - Extension<br />UW-Madison College of Agricultural & Life Sciences<br />

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