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Question 2

Question 2. How much of the nutrient should I apply??. Plant Nutrient Utilization. Plant utilization Corn uses 0.7 lb/bu N 0.4 lb/bu P 2 O 5 Beans use 3.8 lb/bu N 0.8 lb/bu P 2 O 5 Plant fertilization Corn needs 1.2 lb/bu N 0.4 lb/bu P 2 O

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Question 2

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  1. Question 2 How much of the nutrient should I apply??

  2. Plant Nutrient Utilization • Plant utilization • Corn uses 0.7 lb/bu N 0.4 lb/bu P2O5 • Beans use 3.8 lb/bu N 0.8 lb/bu P2O5 • Plant fertilization • Corn needs 1.2 lb/bu N 0.4 lb/bu P2O • Beans need 0.0 lb/bu N 0.8 lb/bu P2O

  3. Steps in Manure Nutrient Management • 1. Determine crop nutrient needs • 2. Determine manure nutrients available • 3. Calculate hectares needed for the manure • 4. Calculate manure volume to apply

  4. Summary - Manure Planning • Not difficult to do • Economically advantageous • Manure can replace purchased fertilizer • Using manure correctly is good for the environment

  5. Potential Pathways • PollutantPathway • Nitrate – N Leaching & Runoff • Ammonium – N Surface water runoff & Aerial deposition • Phosphorus Surface water runoff • Pathogens Surface water runoff • Organic Matter Surface water runoff

  6. Soil and Water Quality Monitoring Techniques • Soil sampling • Surface water sampling • Surface runoff • Open ditch or irrigation canals • Small or large rivers • Ponds, lakes, reservoirs • Ocean, sea • Wetlands • Groundwater • Shallow groundwater • Deep groundwater

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