我国主要粮食作物秸秆还田养分资源量及其对小麦化肥减施的启示
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李廷亮,王宇峰,王嘉豪,栗丽,谢钧宇,李丽娜,黄晓磊,谢英荷
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Nutrient Resource Quantity from Main Grain Crop Straw Incorporation and Its Enlightenment on Chemical Fertilizer Reduction in Wheat Production in China
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LI TingLiang,WANG YuFeng,WANG JiaHao,LI Li,XIE JunYu,LI LiNa,HUANG XiaoLei,XIE YingHe
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表6 我国不同农区主要粮食作物秸秆养分当季归还量
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Table 6 Straw nutrient-returning quantities of main grain crops in different agricultural regions of China
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农区
Agricultural region | 作物
Crop | 养分归还量 Nutrient-returning amount (×104 t) | | N | P2O5 | K2O | | 东北 Northeast China | 水稻 Rice | 15.3±1.3 | 9.1±0.7 | 74.2±6.1 | | 小麦 Wheat | 0.1±0.0 | 0.1±0.0 | 0.6±0.2 | | 玉米 Maize | 52.1±4.3 | 38.3±3.1 | 145.5±11.9 | | 华北North China | 水稻 Rice | 3.0±0.1 | 1.8±0.0 | 14.4±0.4 | | 小麦 Wheat | 28.8±0.9 | 15.4±0.5 | 124.9±4.0 | | 玉米 Maize | 47.0±5.2 | 34.5±3.8 | 131.1±14.6 | 长江中下游
Middle and lower Yangtze River areas | 水稻 Rice | 45.9±1.2 | 27.4±0.7 | 223.0±5.9 | | 小麦 Wheat | 11.9±0.8 | 6.4±0.4 | 51.7±3.4 | | 玉米 Maize | 8.9±0.9 | 6.5±0.7 | 24.8±2.5 | | 西北 Northwest China | 水稻 Rice | 1.3±0.1 | 0.8±0.1 | 6.3±0.6 | | 小麦 Wheat | 6.0±0.3 | 3.2±0.1 | 26.1±1.1 | | 玉米 Maize | 29.2±2.2 | 21.5±1.6 | 81.7±6.2 | | 西南 Southwest China | 水稻 Rice | 13.2±0.5 | 7.9±0.3 | 64.2±2.5 | | 小麦 Wheat | 2.0±0.5 | 1.1±0.2 | 8.6±2.0 | | 玉米 Maize | 15.1±1.8 | 11.1±1.3 | 42.2±5.1 | | 东南 Southeast China | 水稻 Rice | 11.9±0.7 | 7.1±0.4 | 57.9±3.4 | | 小麦 Wheat | — | — | — | | 玉米 Maize | 2.4±0.1 | 1.7±0.1 | 6.6±0.4 | | 全国 The whole country | 水稻 Rice | 90.5±1.2 | 54.1±0.7 | 440.0±6.1 | | 小麦 Wheat | 48.8±1.1 | 26.2±0.6 | 211.9±4.9 | | 玉米 Maize | 154.7±13.9 | 113.8±10.2 | 432.0±38.9 | | 总计Total | 294.0±16.2 | 194.1±11.5 | 1083.9±49.3 |
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