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| 农田氮素管理模式对洱海流域大蒜生长和氮素流失风险的影响 | |
| 引用本文： | 刘培财,雷宝坤,翟丽梅,倪喜云,罗兴华,胡万里,刘宏斌.农田氮素管理模式对洱海流域大蒜生长和氮素流失风险的影响[J].农业环境科学学报,2011,30(7):1364-1370. |
| 作者姓名： | 刘培财 雷宝坤 翟丽梅 倪喜云 罗兴华 胡万里 刘宏斌 |
| 作者单位： | 1. 中国农业科学院农业资源与农业区划研究所,北京,100081 2. 云南省农业科学院农业环境资源研究所,昆明,650205 3. 大理农业环境保护监测站,云南大理,671000 |
| 基金项目： | 国家水体污染控制与治理科技重大专项(2008ZX07105-002); 中法国际合作项目(2008CA029) |
| 摘 要： | 为探求能有效提高洱海流域土壤生产力并降低氮素流失风险的适宜氮素管理模式,采用田间试验方法,研究了5种氮素管理模式对大蒜农艺性状、产量与经济效益、氮素利用率、土壤硝态氮含量及氮素表观平衡的影响.结果表明,与习惯施肥处理相比,优化施肥结合免耕秸秆覆盖可提高大蒜产量7.9%,增加经济效益14.1%,氮肥利用率增加约20个百分... |
| 关 键 词： | 洱海 氮素 管理模式 大蒜 硝酸盐 |
Effects of Nitrogen Managements on Growth of Garlic and Risk of Nitrogen Loss in Field of Erhai Lake Basin, China |
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| LIU Pei-cai,LEI Bao-kun,ZHAI Li-mei,NI Xi-yun,LUO Xing-hua,HU Wan-li,LIU Hong-bin.Effects of Nitrogen Managements on Growth of Garlic and Risk of Nitrogen Loss in Field of Erhai Lake Basin, China[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2011,30(7):1364-1370. | |
| Authors: | LIU Pei-cai LEI Bao-kun ZHAI Li-mei NI Xi-yun LUO Xing-hua HU Wan-li LIU Hong-bin |
| Institution: | LIU Pei-cai1,LEI Bao-kun2,ZHAI Li-mei1,NI Xi-yun3,LUO Xing-hua3,HU Wan-li2,LIU Hong-bin1 * (1.Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Science,Beijing 100081,China,2.Agricultural Environment & Resources Institute,Yunnan Academy of Agricultural Sciences,Kunming 6502052,3.Monitoring Station of Agricultural Environment Protection,Dali 671000,China) |
| Abstract: | Soil degradation and lake eutrophication caused by irrational agricultural nitrogen management is becoming more and more serious, it is necessary to seek the appropriate nitrogen managements to effectively enhance the soil productivity and reduce the risk of nitrogen loss. A field experiment was carried out to study the effects of 5 nitrogen managements on agronomic characteristics, yield and economic benefit, nitrogen use efficiency of garlic, soil nitrate residue and nitrogen balance in Erhai Lake basin. ... |
| Keywords: | Erhai Lake nitrogen management garlic nitrate |
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