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Experiment treatments and fertilization methods.
| Treatments | Application of chemical fertilizer (chemical NPK) (kg/ha) | Proportion (%) | Reduction of chemical fertilizer (chemical NPK) (kg/ha) | Proportion (%) | Replacement of organic fertilizer (organic matter + organic NPK) (kg/ha) | Proportion (%) |
|---|---|---|---|---|---|---|
| CK | 750 | 100 | 0 | 100 | 0 | 0 |
| FO1 | 450 | 60 | 300 | 40 | 150 | 20 |
| FO2 | 450 | 60 | 300 | 40 | 300 | 40 |
| FO3 | 450 | 60 | 300 | 40 | 450 | 60 |
