不同耕作方式对春小麦花后叶面积及产量影响  

Effect of Different Tillage on the Dynamic Change of Leaf Area after Anthesis and Yield of Spring Wheat

作　　者：马林[1] 刘建喜[2] 陈乐梅[1] 石书兵[1] 侯东升[2] 黄爱军[2] 

机构地区：[1]新疆农业大学农学院,乌鲁木齐830052 [2]新疆生产建设兵团种子管理总站,乌鲁木齐830011

出　　处：《新疆农业大学学报》2008年第2期22-24,共3页Journal of Xinjiang Agricultural University

基　　金：国家农业部项目(2003070405)

摘　　要：以常规耕作处理作对照，研究了玉米留茬免耕、小麦不留茬免耕和小麦留茬免耕几种不同耕作方式下春小麦花后叶面积指数变化和产量差异，结果表明不同耕作方式处理的春小麦叶面积指数在花后第7天达到最大，峰值在3．4～5．1，且花后各阶段叶面积指数均为小麦留茬免耕〉小麦不留茬免耕〉玉米留茬免耕〉传统耕作；不同耕作方式下小麦花后叶面积指数与产量呈显著正相关；小麦留茬免耕、小麦不留茬免耕和玉米留茬分别比传统耕作增产44．89％，33．40％，14．58％，产量高低表现为小麦留茬免耕〉小麦不留茬免耕〉玉米留茬免耕〉传统耕作，各处理间差异在0．05水平上均达到显著水平。Compared with the conventional tillage, the dynamic change of the leaf area index and yield of spring wheat in different tillage（no tillage with corn stubble,no tillage with no stubble, no tillage with wheat stubble）were studied in this paper. Results showed that the maximum of leaf area index was on the 7th day after anthesis of spring wheat in different tillage, the maximum of LAI was between 3.4 and 5.1. The LAI varied with tillage, no tillage with wheat stubble〉no tillage with no stubble〉no tillage with corn stubble〉conventional tillage; A significar〉tly positive correlation existed between yield and LAI after anthesis of spring wheat in different tillage. The yield of no tillage with wheat stubble, that of no tillage with no stubble and that of no tillage with corn stubble were higher than that of conventional tillage and were inceased by 44.89% ,33.40% and 14. 58% respectively,compared with conventional tillage. The yield of spring wheat in different tillage showed：no tillage with wheat stubble〉no tillage with no stubble〉no tillage with corn stubble〉conventional tillage. There was obvious difference among the yield of different tillage at 0.05 level.

关 键 词：耕作方式 春小麦 叶面积指数 产量 

分 类 号：S157.42[农业科学—土壤学]