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| 灌溉与施氮对留茬免耕春小麦产量、水分利用效率及氮肥表观利用效率的影响 | |
| 引用本文： | 刘青林,张恩和,王琦,王田涛,刘朝巍,俞华林,尹辉.灌溉与施氮对留茬免耕春小麦产量、水分利用效率及氮肥表观利用效率的影响[J].中国沙漠,2011,31(5):1195-1201. |
| 作者姓名： | 刘青林 张恩和 王琦 王田涛 刘朝巍 俞华林 尹辉 |
| 作者单位： | 1. 甘肃农业大学农学院,甘肃兰州,730070 2. 甘肃农业大学草业学院,甘肃兰州730070／中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室／青藏高原冰冻圈观测试验研究站,甘肃兰州730000 3. 甘肃农业大学草业学院,甘肃兰州,730070 |
| 基金项目： | 西北内陆灌区农田循环生产技术集成研究与示范项目(2007BAD89B17)资助 |
| 摘 要： | 在甘肃省石羊河流域绿洲灌区,研究了不同灌溉量(常规灌溉327 mm、节水20%灌溉261 mm和节水40%灌溉196 mm)和施氮量(0、140、221 kg·hm-2和300 kg·hm-2)对留茬免耕春小麦籽粒产量、秸秆产量、收获指数、水分利用效率和氮素表观利用效率的影响。结果表明,在各施氮处理中,春小麦籽粒产量、秸秆产量、收获指数随灌溉量增加而增加,水分利用效率和氮素利用效率随灌溉量增加先增加后降低。节水20%灌溉的水分利用效率和氮素表观利用效率最高。就各灌溉水平平均值而言,当施氮达到221 kg·hm-2,春小麦籽粒产量(6 365 kg\5hm-2)、收获指数 (0.49)、水分利用效率 (14.51 kg·mm-1·hm-2) 和氮素表观利用效率(21.8%)达到最大值。在与该试验条件相似地区,综合考虑籽粒产量、水分利用效率和氮素表观利用效率,节水20%灌溉和221 kg·hm-2施氮量为最优组合。 |
| 关 键 词： | 灌溉 施氮 籽粒产量 水分利用效率 氮素表观利用效率 石羊河流域 |
| 收稿时间： | 2010-5-4 |
| 修稿时间： | 2010-8-23 |
Effects of Irrigation and Nitrogen Supply on Grain Yield,Water Use Efficiency and Apparent Nitrogen Recovery Fraction of Spring Wheat on No-tillage Farmland with Standing Stubble |
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| LIU Qing-lin,ZHANG En-he,WANG Qi,WANG Tian-tao,LIU Chao-wei,YU Hua-lin,YIN Hui.Effects of Irrigation and Nitrogen Supply on Grain Yield,Water Use Efficiency and Apparent Nitrogen Recovery Fraction of Spring Wheat on No-tillage Farmland with Standing Stubble[J].Journal of Desert Research,2011,31(5):1195-1201. | |
| Authors: | LIU Qing-lin ZHANG En-he WANG Qi WANG Tian-tao LIU Chao-wei YU Hua-lin YIN Hui |
| Institution: | LIU Qing-lin1,ZHANG En-he1,WANG Qi2,3,WANG Tian-tao2,LIU Chao-wei1,YU Hua-lin1,YIN Hui2(1.College of Agronomy,Gansu Agricultural University,Lanzhou 730070,China,2.Pratacultural College of Gansu Agricultural University,3.State Key Laboratory of Frozen Soils Engineering and Cryosphere Research Station of the Qinghai-Tibetan Plateau,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou 730000,China) |
| Abstract: | A controlled experiment was conducted in oases of the Shiyanghe river basin to investigate the effects of different irrigation and nitrogen supply levels on grain yield,straw yield,harvest index(HI),water use efficiency(WUE) and apparent nitrogen recovery fraction(NF) of spring wheat on no-tillage farmland with standing stubble.A complete randomized block split-plot design was employed with different irrigation regimes,namely conventional irrigation of 327 mm,20% water-saving irrigation of 261 mm,40% water-... |
| Keywords: | irrigation nitrogen supply grain yield water use efficiency apparent nitrogen recovery fraction Shiyanghe river basin |
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