Promote the development of the crop root system. Enhance the ability of cold and drought resistance; Promote early crop ripening, spike grain increase. Diammonium Phosphate DAP 18-46-0 Nitrogen content: 18% Phosphate content: 46% Appearance: Granule Colour: Brown Purity: 99%min MF: (NH4)2HPO4 DAP Uses: 1. in fertilizer Used as a highly effective non-chloride N, P compound fertilizer in agriculture. It contains a total of 74% fertilizer Elements, used as an essential raw material for N, P and K compound fertilizer.