钙镁磷肥 | | | | 14%~18% 25%~30% | 10%~15% 25%~40% | | | | | | 1. | | | | | 2. 667m2 10kg | 3. 10 | | 1. | | 2. | | 3. 667m2 15~20kg | | 667m2 35~40kg | | 4. | | |