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Introduction Introduction Presentation Transcript

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