| 水稻强化栽培下不同氮肥管理对产量与氮素利用的影响 |
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| 引用本文： | 杨祥田,林贤青,曾孝元,王旭辉,罗三镯.水稻强化栽培下不同氮肥管理对产量与氮素利用的影响[J].土壤通报,2007,38(3):463-466. |
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| 作者姓名： | 杨祥田 林贤青 曾孝元 王旭辉 罗三镯 |
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| 作者单位： | 1. 浙江省台州市农科院稻作生态所,浙江,临海,317000
2. 中国水稻研究所,水稻生物学国家重点实验室,浙江,杭州,310006 |
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| 摘 要： | 以籼型单季超级杂交稻中浙优1号为材料,研究水稻强化栽培氮肥管理对产量与氮素利用率的影响。结果表明:水稻强化栽培与常规栽培对照比较,增产达11.1%-15.2%,氮肥回收率比对照高5.3%~26.9%,农学利用率比对照高67.2%~92.2%,生理利用率比对照高6.0%~80.5%。因此,在水稻生产上应用水稻强化栽培可以提高氮肥的利用,降低氮肥在环境中积累及对环境造成污染。此外,本文对水稻强化栽培下氮肥管理的高产机理进行了探讨。
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| 关 键 词： | 水稻强化栽培 氮肥管理 产量 氮素利用 |
| 文章编号： | 0564-3945(2007)03-0463-04 |
| 修稿时间： | 2006年3月7日 |
Effect of Nitrogen Management on Grain Yield and Nitrogen Utilization under the System of Intensified Rice Cultivation |
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| YANG Xiang-tian,LIN Xian-qing,ZENG Xiao-yuan,WANG Xu-hui,LUO Shan-zhuo.Effect of Nitrogen Management on Grain Yield and Nitrogen Utilization under the System of Intensified Rice Cultivation[J].Chinese Journal of Soil Science,2007,38(3):463-466. |
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| Authors: | YANG Xiang-tian LIN Xian-qing ZENG Xiao-yuan WANG Xu-hui LUO Shan-zhuo |
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| Abstract: | The experiment of rice intensification system(SRI) was carried out using super hybrid rice(Zhongzheyou 1) as material to investigate the grain yield and nitrogen utilization under different nitrogen managements.The results showed: the grain yield of SRI was 11.1%-15.2% greater than that of CK,and the assimilation efficiency,agronomic efficiency,and physiological efficiency of nitrogen fertilizer were 5.3%-26.9%,67.2%-92.2%,and 6.0%-80.5% greater than those of CK,respectively.Hence,nitrogen utilization efficiency,and eliminated accumulation of N fertilizer and its impact on the environment were enhanced under the system of rice intensification.Moreover,the high-yield mechanism of N fertilizer management under the system of rice intensification was discussed in the paper. |
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| Keywords: | The system of rice intensification N fertilizer management Grain yield Nitrogen utility |
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