... company developed by ourselves has filled the domestic gaps. Potassium Nitrate Product introduces:Type: Prill, Crystalline, With anti-caking ... 50/1000kg net. Special Explanations: The prill grade potassium nitrate that our company developed by ourselves has filled the ... area, it is mainly used to make compound fertilizer, foliar spray fertilizer, especially used for mango, tobacco, fruit tree, ...