npk fertilizer 1. N+P2O5+K2O 2. NO3-N easily absorbed ... grow npk fertilizer : N+P2O5+K2O 15-15-1520-20-20, 19-19-19+TE, 16-16-16, 17-17-17 18-18-18, 12-12-17+ ... MgO, 20-10-12+2MgO.30-10-10,22-5-19 ... -7+2MgO, 20-10-10+2Zn10-55-10, 12-38-10, 12-48-8, 10-52-1018-30-15, 10- ... 18-9-18, 15-5-5, 12-5-14+TE18-4-9+2Mg0, 16-16-8+2MgO Soluble npk fertilizer(20-20-20)