| 灌水对不同追氮水平下夏玉米氮代谢及产量的影响 |
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| 引用本文： | 王明东 王志强. 灌水对不同追氮水平下夏玉米氮代谢及产量的影响[J]. 中国农学通报, 2011, 27(18): 197-199 |
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| 作者姓名： | 王明东 王志强 |
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| 作者单位： | 1. 河南人民胜利渠管理局武嘉分局,河南武陟,454900
2. 河南农业大学农学院,郑州,450002 |
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| 基金项目： | 国家“粮食丰产科技工程”资助项目(2006BAD02A07-2) |
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| 摘 要： | 为研究玉米生育后期补灌和追氮对氮代谢及产量的耦合效应，采用大田试验，测定了拔节后灌水对不同追氮水平下硝酸还原酶（NR）、谷氨酰胺合成酶（GS）等氮代谢酶活性、产量及产量构成因素的影响。结果表明，追氮和灌水使花后穗位叶片硝酸还原酶（NR）活性增加；随追氮量增加，谷氨酰胺合成酶（GS）活性反而降低；灌水处理和自然降水处理对GS活性变化影响差异较小。相同灌水下，追氮可明显提高玉米产量；相同追氮下，补灌处理产量要高于自然降水处理。追肥对产量的增加幅度要大于灌水。
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| 关 键 词： | 农业环境 农业环境 战略环境评价 发展战略 可持续发展 |
| 收稿时间： | 2010-05-24 |
| 修稿时间： | 2010-07-16 |
Effects of Irrigation on Nitrogen Metabolism and Yield of Summer Corn under Different Nitrogen Levels |
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| Wang Mingdong,Wang Zhiqiang. Effects of Irrigation on Nitrogen Metabolism and Yield of Summer Corn under Different Nitrogen Levels[J]. Chinese Agricultural Science Bulletin, 2011, 27(18): 197-199 |
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| Authors: | Wang Mingdong Wang Zhiqiang |
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| Affiliation: | Wang Mingdong 1,Wang Zhiqiang 2 (1 Wujia Substation of Management Bureau of Henan People Shengli Aqueduct,Wuzhi Henan 454900,2 Agronomy College of Henan Agricultural University,Zhengzhou 450002) |
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| Abstract: | In order to understand the coupling effect of irrigation and nitrogen in late stage on nitrogen metabolism and yield of maize,field experiment was carried out to research effects of irrigation on nitrate reductase (NR) and glutamine synthetase (GS),and yield of summer corn under different nitrogen levels.The results showed that nitrogen fertilizer and irrigation could increase NR activity in ear leaves,whereas GS activity showed obvious decrease following nitrogen fertilizer application.The different of the... |
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| Keywords: | summer corn irrigation nitrogen fertilizer nitrogen metabolism yield |
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