NPK fertilizer: Proportion of nitrogen, phosphorus and kalium: 16-16- ... Compound NPK FertilizerThe product is a kind of granular solid fertilizer consisting of nitrogen (N), phosphate (P2O5), kalium (K2O ... , rapeseed plant, wheat, corn, fruits, vegetables, gardening, lawn, etc.Package:Packed in polywoven bag and lined with plastic ... according to their needs.Standard: GB15063-2001 Soluble NPK Fertilizer