The vision of the Cornell University's Nutrient Management Spear Program is to assess current knowledge, identify research and educational needs, conduct applied, field and laboratory-based research, facilitate technology and knowledge transfer, and aid in the on-farm implementation of beneficial strategies for field crop nutrient management, including timely application of organic and inorganic nutrient sources to improve profitability and competitiveness of New York State farms while protecting the environment. For more information about our program mission and focus areas see our NMSP Flyer and/or sign up for our newsletter The Spear.
News
- 2/19/2025: New Extension Publication: Greenhouse Gas Emissiosn and Nutrient Use Efficiency Assessment of Six New York Organic Dairies.
- 2/19/2025: Field Note: A Budding Passium for Sustainable Agriculture: Meet Greiving Fernandez.
- 2/17/2025: New Extension Publication: Value of Manure Calculator Cell Phone App Available Now.
- 2/10/2025: News: Summer Farm Internships Offer Learning and Growth.
- 2/4/2025: Field Note: Between Fields: Skylar Cooper '26 Finds love of Large Animal Medicine in Ag.
- 1/30/2025: New and Updated Fact Sheets: Nutrient Mass Balance Software, Feasible Whole Farm Nutrient Mass Balances, and Reading a Whole-Farm Nutrient Mass Balance Report.
- 1/22/2025: Do You Know Your Farm's Footprint? Whole Farm Nutrient Mass Balance Assessment and Carbon Footprint. Over 100 Farms Participate Annually in the NMB Assessment. Now, Complete Additional Input Sheets for Your Farm Carbon Footprint Too! Fillable PDF Input Data Sheets, Excel Input Data Spreadsheet, Input Data Sheet Instructions for NMB, Dairy Footpriting Invitation.
- 1/16/2025: What's The Value of Your Farm's Manure? Join for Spring 2025. Invitation to Participate: Value of Manure Project. Learn About Details: Protocol. See: Value of Manure Project.
- 1/6/2025: Expanded Guidance Document: Adaptive Nitrogen Management for Field Crops in New York.
- 12/18/2024: New Extension Publication: New End-Of-Season Assessment Tool for Nitrogen Management of Corn Silage.
- 12/12/2024: New Extension Publication: Manure Nutrient Variability During Land Application in Four New York Dairies.
- 12/4/2024: New Extension Publication: Enhancing Nitrogen Management in Corn Silage: Insights from Field-Level Nutrient Use Indicators.
- 11/28/2024: New Journal Publication: Doing GOOD: Defining a Green Operational Outcomes Domain for Nitrogen Use in New York Corn Silage Production.
- 11/26/2024: New Website: Dairy Soil and Water Regeneration; US Dairy NetZero Initiative.
Featured Links
- New York On-Farm Research Partnership
- Cornell Nutrient Guidelines for CNMPs
- Agronomy Factsheets
- Impact Statements
- Nutrient Management Tutorials
- @CornellNMSP Twitter Account
- Sign Up for the NMSP Newsletter; the Spear
- Cornell Corn Soil Database (Excel).
Featured Articles/Updates
- NRCCA Basic Training Manual: Pest Management; Crop Management; Soil & Water Management; Soil Fertility and Nutrient Management.
- Software: Whole Farm Nutrient Mass Balance and New York Phosphorus Index 2.0.
- Webpage: Northeast Region Phosphorus Index and Spreadsheet Calculator.
- Articles: Northeast Dairy and the Circular Economy; Concentrated Animal Feeding Operation Regulations and Comprehensive Nutrient Management Planning in New York State; New York State, Regional and County Level Nitrogen and Phosphorus Balances for Harvested Cropland.
Upcoming Events
- 2025 NRCCA Annual Training and Cornell Field Crop Dealer Meeting. In Person and Virtual. December 9-10, 2025 (Full Days) at the Embassy Suites, Syracuse, and December 16-17, 2025 Virtual (Half Days).
- 2025 ASA/CSSA/SSSA Annual Meeting. Salt Lake City, UT. November 9-12, 2025.
Photo Gallery
Jobs and Internships
- Advancing Dairy Sustainability through On-Farm Nutrient Management Research and Extension.
- NMSP Digital Agriculture Internship.
- NMSP Dairy Sustainability Internship.
NMSP Laboratory
- Submission Form CSNT.
- CSNT Sampling Instructions.
- NMSP Laboratory Manual.
- Address for Samples: NMSP Laboratory, c/o Quirine Ketterings or Sanjay Gami, 323/317 Morrison Hall, Animal Science, Cornell University, Ithaca NY 14853.