npk fertilizer 1. N+P2O5+K2O 2. NO3-N easily absorbed by ... 16-16, 17-17-17 18-18-18, 12-12-17+MgO, 20-10-12+2MgO.30-10-10,22-5-19+TE, ... 5-10 , 25-7-7+2MgO, 20-10-10+2Zn10-55-10, 12-38-10, 12-48-8, 10-52-1018-30- ... 15, 10-40-10, 12-36-1210-10-40, 11-5-40, 15-10-30 ... , 16-8-3213-13-21+2MgO, 15-5-20+2Mg+6S13-15-15, 18-9-18, 15-5- ... 5, 12-5-14+TE18-4-9+2Mg0, 16-16-8+2MgO ...