氮肥运筹对滴灌冬小麦叶片光合特性及产量的影响
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张永强,齐晓晓,张璐,董慧云,陈传信,赛力汗·赛,薛丽华,陈兴武,雷钧杰
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Effects of Nitrogen Management on Leaf Photosynthetic Characteristics and Yield of Winter Wheat under Drip Irrigation
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Yongqiang Zhang,Xiaoxiao Qi,Lu Zhang,Huiyun Dong,Chuanxin Chen,Sailihan·Sai ,Lihua Xue,Xingwu Chen,Junjie Lei
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表1 滴灌小麦不同时期追氮量分配
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Table 1 The proportion of topdressing nitrogen at different growth stages of wheat under drip irrigation kg/hm2
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处理 Treatment | 基肥 Base fertilizer | 追氮时期及追氮量 The period and amount of topdressing nitrogen | 总追氮量 Topdressing nitrogen quantity | 施氮总量 Total nitrogen application | 起身期 Setting | 拔节期 Jointing | 孕穗期 Booting | 开花期 Anthesis | F0 | - | - | - | - | - | - | - | F1 | 94.5 | 123.3(60%) | | 82.2(40%) | | 205.5 | 300 | F2 | 94.5 | 123.3(60%) | - | - | 82.2(40%) | 205.5 | 300 | F3 | 94.5 | - | 123.3(60%) | 82.2(40%) | - | 205.5 | 300 | F4 | 94.5 | - | 123.3(60%) | - | 82.2(40%) | 205.5 | 300 | F5 | 94.5 | 123.3(60%) | - | 41.1(20%) | 41.1(20%) | 205.5 | 300 | F6 | 94.5 | | 123.3(60%) | 41.1(20%) | 41.1(20%) | 205.5 | 300 |
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