2012
Evaluate the interactions of soybean planting date, seeding rate, and row spacing
Contributor/Checkoff:
Category:
Sustainable Production
Keywords:
Field management Nutrient managementSoil healthTillageYield trials
Lead Principal Investigator:
Vince Davis, University of Illinois-Carbondale
Co-Principal Investigators:
Lindell Deal, University of Illinois at Urbana-Champaign
Mike Vose, University of Illinois at Urbana-Champaign
Steve Ebelhar, University of Illinois-Carbondale
+2 More
Project Code:
Contributing Organization (Checkoff):
Institution Funded:
Brief Project Summary:

Soybean seeding rates in Illinois have typically ranged from 150 to 200% of the number of plants needed at harvest (75,000 to 100,000 plants/acre) to maximize yield. High seeding rates provide 'insurance' against conditions that reduce soybean emergence. The cost of soybean seed was historically a relatively minor expense to the cropping operation. The practice of dramatically over-seeding was therefore a good decision from both an agronomic and economic point-of-view. However, soybean seed costs are five-fold greater today than 15 years ago. These higher seed costs have increased interest in reduced seeding rates to maximize economic returns. Those previous trial results compiled over the...

Unique Keywords:
#crop management systems
Information And Results
Project Deliverables

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.