| 水稻测苗定量施肥的增产减氮效应 |
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| 引用本文： | 邹应斌,敖和军,石纪成,蔡胜兵.水稻测苗定量施肥的增产减氮效应[J].作物研究,2008,22(4). |
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| 作者姓名： | 邹应斌 敖和军 石纪成 蔡胜兵 |
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| 作者单位： | 1. 湖南农业大学农学院,长沙,410128
2. 宁乡县农业局,湖南宁乡,410600 |
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| 基金项目： | 引进国际先进农业科技计划(948计划) |
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| 摘 要： | 2003-2006年在湖南省宁乡县进行了不同施肥方法的大田比较试验，研究水稻测苗定量施肥方法对于提高氮肥利用率的作用。结果表明：测苗定量施肥氮肥用量为112．1～136．5kg／hm^2，平均125．8kg／hm^2，比传统施肥减少29．8kg／hm^2。减幅19．1‰；AEN为13．4～24．5kg／kg．比传统施肥提高43．8％；PFPN为46．6～62．0kg／kg，比传统施肥提高Z7．9％；平均产量6．42t／hm^2．比传统施肥增产5．48％；植株氮素吸收总量增加1．17％～10．01％。湖南省6县（区）的生产示范进一步验证了测苗定量施肥的减氮增产效果。
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| 关 键 词： | 水稻 施肥 氮 测苗定量施肥 氮肥利用率 |
Study on Effects of Precision Fertilizer Based on the Leaf Measured on the Yield increase and Nitrogen Rate Reduction in Rice |
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| ZOU Ying-bin,AO He-jun,SHI Ji-cheng,CAI Sheng-bing.Study on Effects of Precision Fertilizer Based on the Leaf Measured on the Yield increase and Nitrogen Rate Reduction in Rice[J].Crop Research,2008,22(4). |
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| Authors: | ZOU Ying-bin AO He-jun SHI Ji-cheng CAI Sheng-bing |
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| Institution: | ZOU Ying-bin1,AO He-jun1,SHI Ji-cheng2,CAI Sheng-bing2(1 College of Agronomy,Hunan Agricultural University,Changsha,Hunan,410128,China,2 Agricultural Bureau of NingXiang County,410600,China) |
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| Abstract: | To clarify the effects of precision fertilizer based on the leaf measured(PFLM) on the increase of yield and the reduction of nitrogen rate in rice,the comparison experiments with different fertilization methods were conducted in farmers' paddy fields in Ningxiang county,Hunan province from 2003 to 2006.The results showed that: nitrogen rate of PFLM ranged from 112.1 to 136.5 kg/hm2 and the average was 125.8 kg/hm2,which was decreased by 29.8 kg/hm2 and by 19.1% compared to traditional method.Compared to tr... |
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| Keywords: | Rice Fertilization Nitrogen Precision fertilizer based on leaf measured Nitrogen use efficiency |
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