Item : compound fertilizer Specificaiton : N :19 K:19 Specificaiton : NPK ... has very much Humic acid plus is liquid or powder form of humic acid plus N,P,K. ... stage,without evaporation loss,easily soluble in water,high fertilizer efficiency. Packing:woven bag lined with plastic bag, ... (1000kg) 1, We are professional manufacturer of NPK fertilizer .could produce and design NPK fertilizeras per client's ...