Potassium

Deficiency Symptoms

Deficiency in early growth stages shows up as irregular mottling around the edges of leaves. These chlorotic areas increase as deficiency becomes more severe, then they merge so that chlorosis occurs around the edges of the leaf. As deficiency becomes more severe, chlorosis progresses toward the center of the leaf. In early growth, necrosis may be on lower leaves but later in the season it may be on leaves in the upper parts of the plant.

Foliar spray of KCl 1% at fortnightly interval