Avoiding potassium deficiency in soybeans

Michigan State University
October 13, 2017
By Michigan State University
Several soybean farmers have contacted Michigan State University Extension regarding premature yellowing of soybeans. The symptoms observed were yellowing along leaf margins followed by scorching and dieback.

Most of this damage was reported from areas that encountered some droughty conditions in 2017. Although these symptoms appeared to resemble that of potassium (K) deficiency at first glance, other factors such as herbicide injury, foliar diseases, compacted soil and root injury could cause similar symptoms to appear. READ MORE

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