2022
Systems that improve nutrient efficiency, foliar protection, and yield of soybean
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Contributor/Checkoff:
Indiana Soybean Alliance
Category:
Sustainable Production
Keywords:
DiseaseField management Pest
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Shaun Casteel, Purdue University
Co-Principal Investigators:
Project Code:
Contributing Organization (Checkoff):
Indiana Soybean Alliance
$74,167
Institution Funded:
Purdue University
$74,167
Brief Project Summary:

Sulfur can improve nutrient efficiency in soybeans and this improvement is appealing when phosphorus and potassium applications are made prior to or at planting. In a preliminary trial, researchers documented yield improvements after phosphorus and sulfur co-application. Potassium applications at soybean planting can cause yield loss, whereas the addition of sulfur with potassium offset this yield suppression. Baseline sulfur applications have created synergistic opportunities with in-season foliar protection. This project will determine the best fertilizer combinations to manage nutrients for soybeans and determine opportunities for management synergies to optimize yield and quality. Researchers will conduct three studies: Nutrient Use Efficiency via Sulfur x NPK, Sulfur x Foliar Protection, and Field-Scale S x Foliar Protection.

Key Benefactors:
farmers, agronomists, Extension specialists, ag retailers, applicators

Information And Results
Project Deliverables

Preliminary results from the 2019 season have already been shared across Indiana. The results from 2021 continued to be presented at Extension winter workshops, meetings, and conferences of producers, Extension educators, and crop professionals across Indiana. Conclusions from the experiments in 2021 will be shared with Extension audiences in presentations, newsletter articles, and websites. We will also share these findings at the American Society of Agronomy meetings.

Final Project Results

Update:

View uploaded report PDF file

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.