Validation of Soil Test Potassium Recommendations and Plant Tissue Analysis to Optimize Soybean-Corn Rotation
Sustainable Production
GeneticsGenomicsSeed quality
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Bhupinder Farmaha, Clemson University
Co-Principal Investigators:
Project Code:
Contributing Organization (Checkoff):
Institution Funded:
Brief Project Summary:
Soybean yields have increased substantially due to better management of improved varieties. One question is, “Are Clemson’s current potassium fertilizer recommendations good enough to sustain high soybean yields?” Previous research conducted in-depth work on evaluating K recommendations and plant analysis to optimize yield. This project expands that work to on-farm trials and verifies if results obtained at on-station trials are aligned with the results of on-farm trials. This helps create more robust datasets testing K fertility recommendations across production environments. The research will generate new information by evaluating the response of soybean yield across four application rates, determining K removal values for soybean and correlating the trifoliate leaf K concentration with soil test levels.
Key Beneficiaries:
#agronomists, #extension agents, #farmers
Unique Keywords:
#fertility, #fertilizer, #k, #potassium, #soil fertility
Information And Results
Project Summary

This was the second year of the project. All the project field activities are completed that include harvesting test plots, taking soil samples, and collecting other datasets. Yield response results will be presented at the board meeting. We have yet to analyze soil samples in our lab.

Project Objectives

Project Deliverables

Progress Of Work

Final Project Results

Updated May 10, 2023:

View uploaded report PDF file

Benefit To Soybean Farmers

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.