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当前位置: 首页 > 文章 > 施氮用量和栽插密度对杂交早稻W两优3418产量及米质的影响 湖北农业科学 2009,48 (12) 42-44
Position: Home > Articles > Effects of Transplanting Density and Nitrogen Rate on Yield Formation and Grain Quality of Early Hybrid Rice W-Liangyou 3418 Hubei Agricultural Sciences 2009,48 (12) 42-44

施氮用量和栽插密度对杂交早稻W两优3418产量及米质的影响

作  者：
杨国才;游艾青;胡刚;刘凯;陈志军;李三和
单  位：
湖北省农业科学院粮食作物研究所
关键词：
氮肥;栽插密度;产量;稻米品质
摘  要：
以早杂W两优3418为材料,研究不同氮肥用量(每公顷纯氮用量设0、120、150、180kg)和栽插密度(每公顷30万、36万、45万穴)对其产量及米质的影响。结果表明,①氮肥用量对有效穗数影响大,对每穗粒数、结实率和千粒重影响小。不同氮肥用量的产量差异达显著水平。②栽插密度对结实率、千粒重和每穗粒数影响较小,对有效穗数影响较大,各栽插密度下,产量差异达显著水平。③氮肥用量的增加有利于提高稻米的碾磨品质和外观品质。④栽插密度对W两优3418的稻米品质影响明显。
译  名：
Effects of Transplanting Density and Nitrogen Rate on Yield Formation and Grain Quality of Early Hybrid Rice W-Liangyou 3418
作  者：
YANG Guo-cai,YOU Ai-qing,HU Gang,LIU Kai,CHENG Zhi-jun,LI Shan-he (Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China)
关键词：
nitrogen fertilizer; transplanting density; yield; rice quality
摘  要：
A field experiment was conducted with different transplanting densities (3.0×105,3.6×105 and 4.5×105 sockets/hm2) and nitrogen fertilizer rates(0,120,150 and 180kgN/hm2)by using an early hybrid rice W-Liangyou 3418 as material. The ni- trogen fertilizer rate had significant effect on number of productive panicles and less effect on grain number per panicle, seed setting rate and 1000-grain weight. The grain yields between different nitrogen fertilizer rates were significantly different. The transplanting densities had less effect on seed setting rate, grain number per panicle and 1000-grain weight. The grain yields between different transplanting densities were also significantly different. The milling and appearance quality of rice were improved by increasing nitrogen fertilizer rate. The transplanting densities had significant effect on grain quality of W-Liangyou 3418.

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