持续性秸秆还田配施化肥对油菜-水稻轮作周年氮磷径流损失的影响
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靳玉婷,刘运峰,胡宏祥,穆静,高梦瑶,李先藩,薛中俊,龚静静
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Effects of Continuous Straw Returning with Chemical Fertilizer on Annual Runoff Loss of Nitrogen and Phosphorus in Rice-Rape Rotation
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JIN YuTing,LIU YunFeng,HU HongXiang,MU Jing,GAO MengYao,LI XianFan,XUE ZhongJun,GONG JingJing
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表5 2017—2019年农田径流氮磷流失特征
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Table 5 Characteristics of nitrogen and phosphorus loss from field runoff from 2017 to 2019
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种植季度 Planting season | 处理 Treatment | 占总氮流失量比例 Proportion in TN loss (%) | | 占总磷流失量比例Proportion in TP loss (%) | NO3--N/TN | NH4+-N/TN | TDP/TP | 2017 油菜 2017 Rape | CK | 7.89±0.33c | 4.96±0.08c | | 38.13±1.06a | F | 18.24±0.88ab | 6.24±0.27b | | 37.85±2.73a | SF | 20.57±0.54a | 7.41±0.51a | | 35.96±4.03a | SDF | 17.04±1.37b | 7.66±0.53a | | 37.37±3.62a | 2017 水稻 2017 Rice | CK | 10.08±0.87a | 13.97±0.51b | | 47.95±1.56a | F | 12.31±1 17a | 23.67±2.04a | | 50.37±1.34a | SF | 12.26±0.37a | 26.21±1.57a | | 51.67±1.03a | SDF | 11.04±1.42a | 22.62±1.73a | | 52.33±6.14a | 2018 油菜 2018 Rape | CK | 31.82±1.87a | 5.69±0.19a | | 49.75±1.65b | F | 28.64±0.57a | 5.85±0.98a | | 54.64±1.06a | SF | 29.71±0.51a | 5.79±0.29a | | 54.32±0.79a | SDF | 32.12±0.21a | 6.40±0.09a | | 53.64±0.20a | 2018 水稻 2018 Rice | CK | 15.15±1.97a | 16.91±1.04b | | 50.48±1.57a | F | 10.61±0.80a | 25.82±1.64a | | 52.30±1.13a | SF | 11.20±1.89a | 31.35±2.13a | | 51.72±2.70a | SDF | 14.58±2.61a | 16.47±1.82b | | 50.40±1.24a | 2019 油菜 2019 Rape | CK | 22.62±0.64b | 9.32±0.50a | | 34.43±0.63b | F | 28.09±0.38a | 9.36±0.33a | | 35.51±0.34a | SF | 29.72±0.85a | 7.77±0.55b | | 35.28±0.75a | SDF | 31.34±2.49a | 7.87±0.33b | | 34.89±0.29a | 2019 水稻 2019 Rice | CK | 12.05±1.35a | 15.20±0.24c | | 40.18±1.76b | F | 9.68±0.15a | 31.50±0.54a | | 40.98±0.15ab | SF | 9.88±0.79a | 29.27±2.93a | | 44.05±0.95a | SDF | 10.15±0.35a | 21.77±0.77b | | 41.28±0.77ab |
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