| 氮肥运筹对超级稻盐丰47产量及氮素利用率的影响 |
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| 引用本文： | 王宇,苏平,付立东.氮肥运筹对超级稻盐丰47产量及氮素利用率的影响[J].北方水稻,2007(5):40-43. |
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| 作者姓名： | 王宇 苏平 付立东 |
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| 作者单位： | 1. 辽宁省盐碱地利用研究所,辽宁,盘锦,124010
2. 盘山县良种场,辽宁,盘锦,124010 |
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| 摘 要： | 探讨了氮肥运筹对超级稻盐丰47产量及氮素利用率的影响,结果表明:基蘖肥与穗肥比例为2:5:3的B处理,获得了产量731.5kg/667m2,分别比C(3:4:3)、D(3:5:2)、A(2:4:4)处理增产了4.1%、4.8%、9.3%。同时表现为B处理的单位面积有效穗数、颖花数、抽穗至成熟期干物质积累量占产量的百分比及结实率、氮素利用率均高于C、D、A处理。
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| 关 键 词： | 超级稻 氮肥运筹 产量 100kg籽粒吸氮量 氮素利用率 |
| 文章编号： | 1673-6737（2007）05-0040-04 |
| 收稿时间： | 2006-12-11 |
| 修稿时间： | 2006年12月11 |
Effect of N-Management on the Yield of Yanfeng 47, a Super Rice Variety, and Nitrogen Use Efficiency |
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| WANG Yu,SU Ping,FU Li-dong.Effect of N-Management on the Yield of Yanfeng 47, a Super Rice Variety, and Nitrogen Use Efficiency[J].Reclaiming and Rice Cultivation,2007(5):40-43. |
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| Authors: | WANG Yu SU Ping FU Li-dong |
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| Institution: | 1 Salt and Alkaline Field Utilization Research Institute, Panjin Liaoning 124010, China; 2 Panshan Seed Farm, Panjin Liaoning 124010, China |
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| Abstract: | The effect of nitrogen management on the yield of Yanfeng 47,a super rice variety,and nitrogen use efficiency was studied.The results showed that the yield from treatment B,the basal fertilizer:tiller fertilizer:panicle fertilizer being 2:5:3(2:5:3),was 731.5 kg/667 m2,higher than those of treatment C(3:4:3),treatment D(3:5:2),and treatment A(2:4:4) by 4.1%,4.8%,and 9.3%,respectively.Meanwhile,the effective panicles and flowers per area,the percentage of dry matter accumulated from heading to maturing to total grain weight,kernel set and nitrogen utilization efficiency obtained in treatment B were more than those of treatment C,treatment D and treatment A. |
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| Keywords: | Super rice N-management Yield Assimilate nitrogen per 100 kg of grain Nitrogen utilization efficiency |
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