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. | | | | | | | | |