... 's specific requirements. 23-21-0+4S npk fertilizerN.P.K. (23:21:0 + 4S)COMPLEX FERTILIZER NPK 23 ... 2-4mm 90% min2Specialized in manufacturing of N. P. K. Compound fertilizers(in granular, soluble powder ).Now we have ... :300, 000 tons per year of N. P. K. Fertilizers, 10, 000 tons per year of ammonium ... 0, 20-20-0, 14-34-0 + S, 16-20-0 + S, 20-10-0, 23-21 + 4S, 23-23-0,NK compound fertilizers 10-0-8, 10-0 ...