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Amount of fertilizer used in each province and in China as a whole in 2018.
| Province | Irrigated farmland area (ha) | Agricultural fertilizer application rate (kg/year) | Fertilizer usage (kg/ha/year) |
|---|---|---|---|
| Sichuan | 2932.5 × 103 | 235.2 × 107 | 802.05 |
| Gansu | 1337.5 × 103 | 83.2 × 107 | 622.06 |
| Qinghai | 214 × 103 | 8.3 × 107 | 387.85 |
| China | 68,271.6 × 103 | 5653.4 × 107 | 828.07 |
