Potassium Deficiency

Poor root development and low soil pH can restrict uptake of potassium.  Upper leaves
pull potassium from lower leaves causing leaf tip yellowing and breakdown.  As tobacco
begins to grow rapidly at about mid-season symptoms may be more pronounced as growth
and potassium demand increase and out pace potassium uptake. 

(bottom two pictures were submitted by Jeff Casada, Clay County Ag Agent)

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