K Deficiency Exposes Soybeans To 50% Yield Loss
By Ron Smith
Delta Farm Press
Potassium deficiency can decrease soybean yield more than 50% across soil types that range from sandy loam to clay loam, says LSU soil fertility specialist Rasel Parvej.
"Potassium deficiency also decreases phosphorus uptake and reduces soybean seed quality by decreasing seed oil and protein content and increasing purple seed stain," Parvej says.