Chad Lee, Extension Agronomist, University of Kentucky
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| K deficient soybean. |
Every year we see soybeans somewhere in Kentucky with deficiency to potassium (K). Causes for the deficiency can be dry weather, soil compaction and/or low soil test levels for K. For the fields that I visit or receive calls, the reasons tend to be 1) soil compaction, 2) dry weather and 3) low soil test K. The symptoms in this image seem to generate to most phone calls, text messages and emails, which is why I've labeled it number one for soybean.
