不同耕作方式对冬小麦籽粒灌浆特性的影响  

Effects of Different Tillage Patterns on Grain Filling Characteristics of Winter-wheat

作　　者：金亚征[1] 王建民[1] 

机构地区：[1]河北北方学院园艺系,河北张家口075000

出　　处：《河南农业科学》2014年第6期22-24,43,共4页Journal of Henan Agricultural Sciences

基　　金：国家科技攻关计划项目(2006BAD15B03;2004BA520A14-3)

摘　　要：为研究不同耕作方式对冬小麦籽粒灌浆的影响,以冬小麦品种科农9204为材料,在华北平原一年两熟区进行了玉米秸秆不还田翻耕、玉米秸秆粉碎还田翻耕、玉米秸秆粉碎还田旋耕、玉米秸秆粉碎覆盖直播、玉米秸秆直立覆盖直播5种不同耕作方式下冬小麦籽粒灌浆特性的研究。结果表明,免耕方式下冬小麦产量降低,且冬小麦千粒重是制约产量提高的重要原因;不同耕作方式下冬小麦籽粒灌浆规律均符合Logistic曲线,但不同耕作方式对籽粒灌浆参数及阶段参数均产生不同程度的影响,通过变异系数分析,提高粒质量应增加最大灌浆速率及各阶段灌浆速率。The grain filling characteristics of winter-wheat in 5 tillage patterns were studied using the cultivar Kenong 9204 in wheat maize double cropping system of North China Plain. The result indicated that the tillage patterns effected 1 000-weight remarkably. The grain filling law of winter-wheat was consistent with the logistic function in different tillage patterns,and the tillage patterns effected the grain filling parameters. The maximum grain filling rate and the fastest-period filling rate were the most important factors to grain weight. The filling dates and filling rate in no-tillage with maize-stalk crushed for mulching and no-tillage with whole maize-stalk mulch were less than those in other three tillage patterns, the difference being significant at 0.05 level compared with the ＂plow-tillage with maize-stalk crushed and returned to field＂.

关 键 词：冬小麦 耕作方式 免耕 籽粒灌浆参数 千粒重 

分 类 号：S512.1[农业科学—作物学]