McNay Memorial Research and Demonstration Farm

Potassium Fertilizer Effects on Yield of Corn and Soybean and on Potassium Uptake and Recycling to the Soil

Authors: Antonio P. Mallarino (Iowa State University) , Ryan R. Oltmans (Iowa State University) , Nicholas Piekema (Iowa State University)

  • Potassium Fertilizer Effects on Yield of Corn and Soybean and on Potassium Uptake and Recycling to the Soil

    McNay Memorial Research and Demonstration Farm

    Potassium Fertilizer Effects on Yield of Corn and Soybean and on Potassium Uptake and Recycling to the Soil

    Authors: , ,

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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

Keywords: RFR A12123, Agronomy

How to Cite:

Mallarino, A. P., Oltmans, R. R. & Piekema, N., (2013) “Potassium Fertilizer Effects on Yield of Corn and Soybean and on Potassium Uptake and Recycling to the Soil”, Iowa State University Research and Demonstration Farms Progress Reports 2012(1).

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Published on
2013-01-01

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