Potassium Older leaves show chlorosis. The symptoms start from margins and become necrotic brown colour. Drying starts from leaf tip towards base. Leaf become pale green and turns yellow with scorching appearance. Correction Measure: Foliar spray of K2SO4 @1% at fortnightly intervals. IPM for Large Cardamom To know the IPM practices for Large Cardamom, click here. Source: NIPHM and Directorate of Plant Protection, Quarantine & Storage