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6 2017—2019年农田土壤养分含量及pH的动态变化
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Table 6 Dynamic changes of soil nutrient content and pH in fields from 2017 to 2019
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种植季度 Planting season | 处理 Treatment | 有机质 Organic matter (g·kg-1) | 全氮 Total nitrogen (g·kg-1) | 全磷 Total phosphorus (g·kg-1) | 速效磷 Available phosphorus (mg·kg-1) | 碱解氮 Hydrolyzable nitrogen (mg·kg-1) | pH | 2017油菜 2017 Rape | CK | 24.64±1.46b | 1.53±0.02d | 0.42±0.02a | 18.55±0.36b | 158.38±0.88b | 6.90±0.31a | F | 27.69±0.97a | 1.72±0.04c | 0.38±0.00a | 22.22±1.37ab | 162.76±1.75b | 6.29±0.14ab | SF | 28.79±0.38a | 1.92±0.01b | 0.55±0.11a | 24.52±3.30ab | 171.50±1.01a | 5.93±0.12b | SDF | 28.52±0.46a | 1.81±0.01a | 0.46±0.00a | 25.76±0.86a | 172.38±2.63a | 6.20±0.15ab | 2017水稻 2017 Rice | CK | 25.42±0.09b | 1.52±0.02b | 0.36±0.01b | 14.77±0.73b | 144.78±0.82c | 6.68±0.03a | F | 25.48±0.07b | 1.55±0.01b | 0.50±0.02ab | 23.45±2.39a | 148.63±0.47b | 6.41±0.01b | SF | 26.83±0.43a | 1.63±0.03b | 0.54±0.06a | 23.27±0.32a | 154.82±0.42a | 6.34±0.01c | SDF | 26.43±0.27ab | 1.59±0.04ab | 0.52±0.01a | 22.53±0.35a | 150.15±2.45b | 6.32±0.00c | 2018油菜 2018 Rape | CK | 25.35±0.31c | 1.50±0.05c | 0.36±0.01d | 22.42±0.74b | 141.25±0.71d | 7.24±0.02a | F | 26.96±0.33b | 1.56±0.02bc | 0.41±0.00c | 24.06±0.28b | 154.92±1.35c | 6.53±0.13b | SF | 28.65±0.61a | 1.65±0.02a | 0.48±0.00a | 29.25±1.31a | 167.13±0.96a | 5.55±0.09d | SDF | 28.19±0.11ab | 1.61±0.01ab | 0.46±0.00b | 26.95±0.24a | 160.18±0.65b | 5.93±0.17c | 2018水稻 2018 Rice | CK | 26.87±0.57c | 1.72±0.06b | 0.40±0.00c | 18.12±1.17c | 142.33±1.68c | 6.30±0.09a | F | 28.97±0.13b | 1.86±0.10b | 0.48±0.02b | 21.28±0.70b | 175.93±0.62b | 5.73±0.03b | SF | 31.09±0.56a | 2.24±0.18a | 0.59±0.03a | 24.99±0.48a | 184.33±2.33a | 5.53±0.06b | SDF | 29.06±0.27b | 2.18±0.13a | 0.55±0.01ab | 23.19±0.17ab | 181.65±4.55ab | 5.72±0.07b | 2019油菜 2019 Rape | CK | 26.41±0.71b | 1.67±0.08a | 0.40±0.05b | 22.54±1.95c | 145.34±2.48a | 6.98±0.06a | F | 27.16±0.36ab | 1.70±0.05ba | 0.51±0.01ab | 30.82±0.28b | 179.13±1.54b | 5.96±0.20b | SF | 29.47±1.38a | 1.84±0.11a | 0.63±0.07a | 38.33±1.31a | 183.23±1.11b | 5.93±0.29b | SDF | 28.31±0.00ab | 1.85±0.09a | 0.61±0.06a | 31.24±2.15b | 179.35±3.24a | 6.61±0.13a | 2019水稻 2019 Rice | CK | 26.68±0.26c | 1.63±0.04b | 0.42±0.02c | 18.51±0.76a | 154.22±2.86b | 6.52±0.09a | F | 28.81±0.29b | 1.82±0.06a | 0.54±0.02b | 23.85±1.55a | 173.71±3.12a | 6.48±0.07ab | SF | 31.10±0.68a | 1.91±0.03a | 0.68±0.05a | 25.47±3.23a | 184.52±9.72a | 6.23±0.07bc | SDF | 28.56±0.34b | 1.82±0.06a | 0.65±0.03b | 23.99±0.71a | 175.90±2.49a | 6.01±0.01d |
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