NPK 复合肥

Balanced basis（基础类）
20-20-20, 9-45-30, 19-19-19+TE
16-16-16.,17-17-17,18-18-18,12-12-17+MgO,20-10-12+2MgO.
high nitrogen basis(高氮)
30-10-10,22-5-19+TE,31-11-11 ,23-6-10,25-7-7+2MgO.,20-10-10+2Zn
25-5-10
high phosphoric basis（高磷）
10-55-10,12-38-10,12-48-810-52-10,18-30-1510-40-10 ,12-36-12
high potassium basis（高钾）
10-10-40,11-5-40,15-10-30,13-13-21+2MgO.,16-8-32,15-5-20+2Mg+6S