2009
Soybean yield response to soil P and K availability: Optimizing fertilizer expenses
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Contributor/Checkoff:
Kentucky Soybean Promotion Board
Category:
Sustainable Production
Keywords:
GeneticsGenomicsSeed quality
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
John Grove, University of Kentucky
Co-Principal Investigators:
Lloyd Murdock, University of Kentucky
Greg Schwab, University of Kentucky
+1 More
Project Code:
Contributing Organization (Checkoff):
Kentucky Soybean Promotion Board
(n/a)
Institution Funded:
University of Kentucky
(n/a)
Brief Project Summary:

The primary goal of this project is to reduce the cost of producing soybeans. Fertilizer phosphorus (P) and potassium (K) prices have been rising. New technologies for P and K fertilization (variable rate application) have been developed, and new soybean varieties with greater disease, nematode and herbicide resistance are available, but the University of Kentucky's soil test-based P and K fertility recommendations for soybean have not been changed. In Kentucky, soybean P and K fertilization is recommended up to the point that the soil test (Mehlich III) P and K reach 60 and 300 pounds per acre, respectively. Modern circumstances suggest that our understanding of soybean's response to soil...

Unique Keywords:
#phosphorus (p), #potassium (k), #soil fertility, #soybean fertility studies, #variable rate application
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.