NPK fertilizer refers to the three elemental nutrients found in common garden fertilizer: nitrogen (N), phosphorus (P) and potassium (K), or potash. Also seen as N-P-K, the hyphens are representative of the percentages of each element within the fertilizer. 

Packing terms:

9.5kg/9.9kg/25kg/50kg/1000kg and OEM color

Delivery time:  10days after receive the deposit