Farm

McNay Research and Demonstration Farm

Extension Number

RFR A12123

Publication Date

2013

Abstract

Research has been conducted in Iowa to investigate potassium (K) fertilization of corn and soybean, but not at this farm. Insufficient K amounts in the soil or applied with fertilizer or manure significantly decreases crop yield end economic benefits to growers. Also, research in other locations has shown large soil-test K temporal variability within a season or from the fall to spring. Therefore, a study was initiated in 2009 to investigate these issues

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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