Coffee bushes deficient in potash defoliate easily after a heavy crop or during a dry spell.Prolongedm, severe potassium deficiency results in die-back of branches or the death of the entire tree.

• 丰收以后或在干旱期间，缺钾咖啡树容易落叶，长期严重缺钾，可导致枝条枯萎或整株的死亡。