Meeting crop nitrogen needs with manure while overapplying other nutrients can save the crop farmer the cost of additional fertilizer, but every decision on a farm has consequences. This webinar discusses using whole farm and field-based nitrogen (N) and phosphorus (P) balances to identify opportunities for improvements in nutrient use and monitor the impact of management changes over time, the time necessary to reduce the soil phosphorus levels, and the issues with zinc accumulation in soils. This presentation was originally broadcast on March 15, 2024.
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Assessment Tools to Advance Management Whole Farm and Field N and P Balances
Quirine Ketterings & Agustin Olivo, Cornell University (18:30)
Presentation Slides
Drawdown of Soil Legacy Phosphorus, A Meta-Analysis
Luciano Gatiboni, North Carolina State University (15:51)
Presentation Slides
Impact of Nitrogen Based Manure Management, Planning on Soil Zinc Accumulation
Stephanie Kulesza, North Carolina State University (12:53)
Presentation Slides
Questions from the Audience
All presenters (27:07)
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