Zinc Sulphate Heptahydrate is conventional and most widely used micronutrient in India. It is used to ameliorate Zinc deficiency in the soil. It is also used for the application of making chlorophyll, auxin & growth hormones in the plants. Plants are treated with crystalline Zinc Sulphate Heptahydrate to prevent the deficiency of zinc in the plants which are a vital mineral for the all round development of the plant. Zinc deficiency can be detected by the weakness of leaves, stunted growth of the leaves and slow growth rates of the plants. Zinc Sulphate Heptahydrate contains minimum 21% zinc and conforms to Fertilizer Control Order specifications best suited for the purpose.