白皮大粒早熟小麦新品种‘绵麦47’高产栽培技术初探  

Preliminary Study on High Yield Cultivation Measures of the New White Large Grain and Early-Maturing Wheat Variety-‘Mianmai 47’

作　　者：周强[1] 李生荣[1] 庞启华[1] 杜小英[1] 欧俊梅[1] 陶军[1] 任勇[1] 

机构地区：[1]国家小麦改良中心绵阳分中心/绵阳市农业科学研究所小麦研究室,四川绵阳621023

出　　处：《中国农学通报》2011年第7期133-137,共5页Chinese Agricultural Science Bulletin

基　　金：国家"十一五"支撑计划项目(2006BAD01A02);四川省"十一五"育种攻关项目(2006YZGG-3);四川省农业厅重点资助项目

摘　　要：此文采用两因素裂区设计,研究了密度、施氮量对小麦新品种‘绵麦47’的产量效应。结果表明,密度、施氮量以及密氮互作都极显著地影响‘绵麦47’的产量。产量随着密度与施氮量的增加都呈增加趋势。在同一施氮量下,随着密度的增加,有效穗增多,穗粒数减少,千粒重表现出幅度较小的降低趋势;在同一密度下,随着施氮量的增加,有效穗与穗粒数呈增多趋势,千粒重变化不明显。同时通过相对经济效益的分析,得出了相对经济效益较高的密氮组合。最后初步得出‘绵麦47’高产高效的栽培措施为:施纯氮量为150～225kg/hm2,密度为120～240万基本苗/hm2。Two-factor split-plot design was used in this paper to study the effects of nitrogen application rate and plant density on the yield of the new white large grain and early-maturing wheat variety- ‘ Mianmai 47 ＇ .The results showed that,nitrogen application rate,plant density and their interaction influenced the yield significantly.The yield both increased with the increase of nitrogen application rate and that of plant density.In the same nitrogen application rate,the effective spikes increased,grains per spike decreased and grain weight decreased slightly with the increase of plant densities.In the same plant density,the effective spikes and grains per spike increased,and grain weight changed slightly with the increase of nitrogen application rates.The combination with high relative economic benefits was also obtained.The cultivation measures with high yield and high relative economic benefits of ‘Mianmai 47 ＇ were that： the nitrogen application rate were 150-225 kg/hm 2 and the basic seedlings were 120×10 4 -240×10 4 per hm 2 .

关 键 词：小麦 高产 栽培技术 '绵麦47’ 

分 类 号：S512.1[农业科学—作物学]