| 肥料配施对杂交中稻氮素积累与分配及氮肥利用率的影响 |
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| 引用本文： | 阮新民,施伏芝,倪金龙,罗志祥.肥料配施对杂交中稻氮素积累与分配及氮肥利用率的影响[J].水土保持学报,2010,24(1). |
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| 作者姓名： | 阮新民 施伏芝 倪金龙 罗志祥 |
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| 作者单位： | 安徽省农业科学院水稻研究所,安徽省水稻遗传育种重点实验室,安徽合肥230031 |
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| 基金项目： | 科技部国际合作重点项目(2006DFA32990); 科技部星火计划项目(2008GA710005) |
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| 摘 要： | 通过大田试验,评价有机无机肥配合施用对我国南方杂交中稻氮素积累与转移特性及氮肥利用效率影响。结果表明,叶氮积累量、茎鞘氮积累量及植株氮素积累总量在配施有机肥处理与不配施之间在抽穗期、灌浆期、成熟期均存在显著差异;有机肥的配施有利于植株各器官氮素的积累。配施有机肥对叶及茎鞘氮的表观转运率影响差异不显著。配施有机肥的氮收获指数在成熟期以尿素配施饼肥最高,比尿素+控失剂并配施有机肥高15.2%。配施有机肥与相对应不施有机肥的氮肥利用率能提高10%左右。尿素+控失剂处理的生物产量及籽粒产量均较高,分别比不施肥处理高50.6%,16.4%。品种间差异主要表现为叶氮积累量及氮素积累总量且在生育后期差异显著。因此,配施有机肥作基肥有利于叶氮、茎鞘氮及氮素积累总量的积累。氮素的表观运转率在不同的肥料处理及高产杂交水稻品种间均无显著差异。配施有机肥能显著提高氮肥利用率及氮收获指数。
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| 关 键 词： | 水稻 肥料结构 氮积累与氮分配 氮肥利用率 |
Effects of Organic Manure Application Combined with Chemical Fertilizers on Rice Nutrient Uptake and Distribution and Nitrogen Use Efficiency |
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| RUAN Xin-min,SHI Fu-zhi,NI Jing-long,LUO Zhi-xiang.Effects of Organic Manure Application Combined with Chemical Fertilizers on Rice Nutrient Uptake and Distribution and Nitrogen Use Efficiency[J].Journal of Soil and Water Conservation,2010,24(1). |
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| Authors: | RUAN Xin-min SHI Fu-zhi NI Jing-long LUO Zhi-xiang |
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| Institution: | RUAN Xin-min,SHI Fu-zhi,NI Jing-long,LUO Zhi-xiang (Rice Research Institute,Key Laboratory of Rice Genetics , Breeding of Anhui Provice,Anhui Academy of Agricultural Science,Hefei 230031) |
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| Abstract: | Chemical fertilizers,especially nitrogenous fertilizer,have played an important role on increasing paddy rice production. In this research,field experiment with 7 fertilizers under 225 kg/hm2 nitrogen amount and five high-yielding medium hybrid rice varieties has been conducted. Results showed that there were significant difference on nitrogen accumulation of leaf (NAL),nitrogen accumulation stem (NAS) and total nitrogen accumulation (TNA) between the compound application of the inorganic and organic fertil... |
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| Keywords: | rice fertilizer nutrient uptake and distribution NUE |
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