2015
Nitrogen applications
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Contributor/Checkoff:
New York Corn & Soybean Growers Association
Category:
Sustainable Production
Keywords:
Field management Soil healthTillage
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Mike Stanyard, Cornell Cooperative Extension
Co-Principal Investigators:
Project Code:
Contributing Organization (Checkoff):
New York Corn & Soybean Growers Association
(n/a)
Institution Funded:
Cornell Cooperative Extension
(n/a)
Brief Project Summary:

Research in the 1990's in WI, MN, and IA tried to increase soybean yields by adding nitrogen to soybeans, preplant, and at vegetative and reproductive plant stages. Yield increases could not be consistently achieved and in some cases yields decreased. Many states do not recommend adding nitrogen to soybeans at any stage of development. Bill Cox's research in New York showed that nitrogen showed no economic advantage when applied at planting.

More recent studies have shown an advantage to nitrogen applications under certain conditions. Most researchers agree that almost 60% of the nitrogen used by soybeans comes from the symbiotic relationship with rizobia on its roots. The addition...

Unique Keywords:
#soil and tillage management
Information And Results
Final Project Results

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.