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Karlen, D
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Authors
Kovar, J
Karlen, D
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Type
Oral
Year
2014
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1. Profile Distribution of Available Potassium in Des Moines Lobe Soils

Plant potassium (K) concentrations and soil fertility evaluations to predict available K have received renewed attention during the past few years due to increasing interest in harvesting crop residues as feedstock for production of bioenergy and other bio-products [e.g., button mushroom (Agaricus Bisiporus) compost]. Interest in K crop nutrition has also increased as more producers adopt reduced or no-tillage production practices. This latter situation is not new, because the potential for K deficiencies...