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Reducing and postponing N application experiment design.
| Treatments | Total N input (kg/hm2) | N input/(kg/hm2) | |||
|---|---|---|---|---|---|
| Base fertilizer | Tillering fertilizer | Booting fertilizer | Panicle fertilizer | ||
| CK | 0 | 0 | 0 | 0 | 0 |
| N300 | 300 | 150 | 75 | 75 | 0 |
| N240 | 240 | 120 | 60 | 60 | 0 |
| RPN I | 240 | 80 | 80 | 80 | 0 |
| RPN II | 240 | 60 | 60 | 60 | 60 |
Note: basic fertilizer buried in soil preparation, top dressing application in surface water.
