Abstract
Response of Soybean Grown on a Claypan Soil in Southeastern Kansas to the Residual of Different Plant Nutrient Sources and Tillage
Highlights
Increased fertilizer prices in recent years, especially noticeable when the cost of phosphorus spiked in 2008, have led US producers to consider other alternatives, including manure sources
Soybean yields measured from 2014 through 2016 were more than 50% greater from the residual from Nbased turkey litter applications during 2011 through 2013 than in the control where no nitrogen (N) or phosphorus (P) was applied
Residual from P-based turkey litter applications or fertilizer-only did not result in soybean yield different from the no N-P control. This residual effect on yield was largely due to increased pods per plant
Summary
Soybean yields measured from 2014 through 2016 were more than 50% greater from the residual from N-based turkey litter applications during 2011 through 2013 than in the control where no nitrogen (N) or phosphorus (P) was applied. Residual from P-based turkey litter applications or fertilizer-only did not result in soybean yield different from the no N-P control. This residual effect on yield was largely due to increased pods per plant
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