Episode 45: Potassium (K) Management in Cotton
Update: 2024-06-17
Description
Soil Scientists / Fertility Experts Drs. Hunter Frame (Virginia Tech), Glen Harris (University of Georgia), Audrey Gamble (Auburn University) and Katie Lewis (Texas A&M) join host Steve Brown of Auburn to discuss the challenges associated with K management in cotton. Sometimes, particularly in the the Lower Southeast, we can fertilize appropriately and still encounter K deficiencies, presumably because pre-bloom heat/moisture stresses limit K uptake; then during boll-fill, K demand from leaf and stem tissues can quickly deplete plant reserves. The results can be premature defoliation, secondary fungal leaf diseases such as Stemphylium and reduced yields.
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