Potassium (K) on plant

Potassium is utilized by plants in the activation of enzymes and co-enzymes (specialized proteins serving as catalysts and co-factors), photosynthesis, protein formation, and sugar transport. K deficiency does not immediately result in visible symptoms (hidden hunger).Initially, there is only a reduction in growth rate, with chlorosis and necrosis occurring in later stages (Mengel and Kirkby, 2001). Affected older leaves will show localized mottled or chlorotic areas with leaf burn at margins

K deficient (left) andnormal (right) trifoliates.White spotting occurring along leaf margins in deficient leaf.