Year Treatment The Fertilization dosage(kg·hm-2 Straw application rates(kg·hm-2 Fertilizer substitution ratio(%)
N P2O5 N P2O5
2018~2019 S0 82.0 76.0 0.0
S1/2 72.0 64.0 3250.0 12.2 15.8
S1 62.0 52.0 6500.0 24.4 31.6
S2 42.0 28.0 13000.0 48.8 63.2
2019~2020 S0 91.0 35.0 0.0
S1/2 87.0 31.0 1400.0 4.4 11.4
S1 83.0 28.0 2800.0 8.8 20.0
S2 75.0 20.0 5600.0 17.6 42.9
2020~2021 S0 113.0 0.0
S1/2 104.0 2826.0 8.0
S1 95.0 5653.0 15.9
S2 77.0 11306.0 31.9
2021~2022 S0 63.0 6.0 0.0
S1/2 51.4 3626.5 18.4
S1 39.8 7253.0 36.8
S2 16.6 14506.0 73.7
2022~2023 S0 173.0 67.0 0.0
S1/2 165.8 63.1 2250.0 4.2 5.9
S1 158.6 59.1 4500.0 8.3 11.8
S2 144.2 51.2 9000.0 16.6 23.6
Mean S0 104.4 59.3 0.0
S1/2 96.0 52.7 2670.5 9.4 11.0
S1 87.7 46.4 5341.2 18.8 21.1
S2 71.0 33.1 10682.4 37.7 43.2