How much potash required for arhar?

Potash i.e. potassium is one of the essential nutrient elements required by the plant for plant growth. It helps plants use water and resist drought and enhances yield.
Arhar contains a good amount of potassium, iron, iodine and essential amino acids which make it a good and healthy food supplement.
During the cultivation of arhar, about 40 - 60 kg/ha of potash is required for good quality yield.