Tissue Testing Recommendations Available in Publication

AMES, Iowa ― The practice of conducting tissue testing for phosphorus and potassium in corn and soybean is a relatively new tool in Iowa crop production. While soil testing has been widely used for decades, proper tissue testing recommendations are still emerging.
A new publication from Iowa State University Extension and Outreach discusses the results of tissue testing research and interpretation at Iowa State University. The publication “Phosphorus and Potassium Tissue Testing in Corn and Soybean” (CROP 3153) provides interpretations specific for Iowa’s growing conditions.


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