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施氮量和栽插密度对杂交中籼稻产量及其构成因素的影响
引用本文:吴文革,杨联松,赵决建,胡根生,方文杰,白一松,张四海,张玉海.施氮量和栽插密度对杂交中籼稻产量及其构成因素的影响[J].安徽农业大学学报,2008,35(1):49-55.
作者姓名:吴文革  杨联松  赵决建  胡根生  方文杰  白一松  张四海  张玉海
作者单位:1. 安徽农科院水稻研究所长江中下游稻作技术创新中心,合肥,230031
2. 桐城市农技推广中心,桐城,231400
3. 安徽农科院水稻研究所长江中下游稻作技术创新中心,合肥,230031;安徽农业大学农学院,合肥,230036
基金项目:国家粮食丰产科技工程项目 , 农业部结构调整专项
摘    要:以两系杂交籼稻皖稻153为试验材料,研究不同施氮量和栽插密度对其产量及其构成因素的影响.结果表明:(1)施氮量、栽插密度对皖稻153的产量有着显著影响;225 kg·hm-2施氮水平的产量最高,300 kg·hm-2施氮水平的产量次之,此两处理差异不显著但比不施氮处理的极显著增产;栽插密度以22.5×104 hm2的产量最高,其次为30.0×104 hm2,以下依次为15.0×104 hm2、37.5×104 hm2和7.5×104 hm2.(2)施氮量和栽插密度对产量构成因素有着不同的影响,其中对单位面积穗数影响最大,每穗粒数次之,结实率相对较小,千粒重最为稳定.(3)群体颖花量的增加是产量提高的决定性因素,在适宜足量的群体颖花量基础上稳定提高结实率是高产的保证.(4)本试验条件下,皖稻153适宜的施氮量为225 kg·hm-2,栽插密度为22.5×104 hm2.

关 键 词:杂交中籼水稻  皖稻153  施氮量  栽插密度  产量  产量构成
文章编号:1672-352X(2008)01-0049-07
收稿时间:2007-07-03
修稿时间:2007年7月3日

Effects of amount of nitrogen applied and planting density on yield and its components of middle-season indica hybrid rice
WU Wen-ge,YANG Lian-song,ZHAO Jue-jian,HU Gen-sheng,FANG Wen-jie,BAI Yi-song,ZHANG Si-hai,ZHANG Yu-hai.Effects of amount of nitrogen applied and planting density on yield and its components of middle-season indica hybrid rice[J].Journal of Anhui Agricultural University,2008,35(1):49-55.
Authors:WU Wen-ge  YANG Lian-song  ZHAO Jue-jian  HU Gen-sheng  FANG Wen-jie  BAI Yi-song  ZHANG Si-hai  ZHANG Yu-hai
Institution:School of Humanities and Social Sciences, Anhui Agricultural University
Abstract:As the society develops, the female condition also improves. A lot of attention has been paid to the problems on women. To get known the relativity between the health state of the female teaching staff working in AHU and the attention paid to the female staff by the leader in AHU, the paper takes all female teaching staff working in AHU now as the research object. Hopefully this research can do something for improving the female teaching staff condition.
Keywords:middle-season indica hybrid rice  Wandao 153  amount of nitrogen applied  planting density  yield  yield components
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