| | | | 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. | | | | | |