Historical Project Details: A decision support tool for phosphorus application in soybean fields that have a “high” soil test phosphorus rating (2019)

2019

A decision support tool for phosphorus application in soybean fields that have a “high” soil test phosphorus rating

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Contributor/Checkoff:

Alabama Soybean Producers

Category:

Sustainable Production

Keywords:

GeneticsGenomicsSeed quality

Parent Project:

This is the first year of this project.

Lead Principal Investigator:

Rishi Prasad, Auburn University

Co-Principal Investigators:

Dennis Delaney, Auburn University
Audrey Gamble, Auburn University

+1 More

Project Code:

Contributing Organization (Checkoff):

Alabama Soybean Producers

$18,049

Institution Funded:

Auburn University

$18,049

Article

Brief Project Summary:

Soybeans need phosphorus for photosynthesis throughout the season and especially during pod formation. Too much P can pose an environmental risk, prompting application guidelines based on soil tests. Many Alabama soils are high in aluminum and iron oxides that bind P under acidic conditions, making it unavailable. Current soil tests measure plant-available P, but they don’t reveal if those soils are capable of storing additional P. To better assess how soils interact with P, the research quantifies P storage capacity of Alabama soils to then develop a decision support tool to help determine when P can be applied or stopped to those P-fixing soils.

Key Benefactors:
farmers, agronomists, Extension agents

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.