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4 我国不同农区主要粮食作物秸秆养分资源量
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Table 4 Straw nutrient resources quantities of main grain crops in different agricultural regions of China
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农区
Agricultural region | 作物
Crop | 养分资源量 Nutrient resources quantity (×104 t) | | N | P2O5 | K2O | | 东北 Northeast China | 水稻 Rice | 27.8±2.3 | 15.0±1.2 | 82.4±6.8 | | 小麦 Wheat | 0.3±0.1 | 0.1±0.0 | 0.6±0.2 | | 玉米 Maize | 84.2±6.9 | 52.5±4.3 | 157.5±12.9 | | 华北North China | 水稻 Rice | 5.4±0.2 | 2.9±0.1 | 16.0±0.4 | | 小麦 Wheat | 56.0±1.8 | 23.6±0.8 | 133.9±4.3 | | 玉米 Maize | 75.9±8.4 | 47.3±5.3 | 141.9±15.8 | 长江中下游
Middle and lower Yangtze River areas | 水稻 Rice | 83.6±2.2 | 45.0±1.2 | 247.5±6.6 | | 小麦 Wheat | 23.2±1.5 | 9.8±0.6 | 55.4±3.6 | | 玉米 Maize | 14.4±1.4 | 9.0±0.9 | 26.9±2.7 | | 西北 Northwest China | 水稻 Rice | 2.3±0.2 | 1.3±0.1 | 6.9±0.7 | | 小麦 Wheat | 11.7±0.5 | 4.9±0.2 | 27.9±1.2 | | 玉米 Maize | 47.2±3.6 | 29.5±2.2 | 88.4±6.7 | | 西南 Southwest China | 水稻 Rice | 24.0±0.9 | 12.9±0.5 | 71.2±2.7 | | 小麦 Wheat | 3.8±0.9 | 1.6±0.4 | 9.2±2.2 | | 玉米 Maize | 24.4±2.9 | 15.2±1.8 | 45.7±5.5 | | 东南 Southeast China | 水稻 Rice | 21.7±1.3 | 11.7±0.7 | 64.3±3.8 | | 小麦 Wheat | — | — | — | | 玉米 Maize | 3.8±0.2 | 2.4±0.1 | 7.2±0.4 | | 全国 The whole country | 水稻 Rice | 164.9±2.3 | 88.8±1.2 | 488.4±6.7 | | 小麦 Wheat | 95.0±2.2 | 40.1±0.9 | 227.1±5.3 | | 玉米 Maize | 249.9±22.5 | 155.8±14.0 | 467.5±42.1 | | 总计Total | 509.8±26.7 | 284.7±16.1 | 1183.0±53.5 |
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