【作者】 袁彦云； 张保军； 徐福利； 汪有科；

【Author】 YUAN Yan-yun~(1,2) ZHANG Bao-jun~1 XU Fu-li~2 WANG You-ke~2 (1 Agronomy college of North-west sci and Tec University of Agriculture and Forestry,2 Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resource,North-wear sci and Tec University of Agriculture and Forestry,yangling,Shaanxi,712100)

【机构】 西北农林科技大学农学院； 中国科学院水利部西北农林科技大学水土保持研究所；

【摘要】 试验采用5种保墒灌溉栽培方式,以传统耕作栽培方式为对照,在小麦灌浆期测定旗叶叶绿素含量、MDA 含量、SOD 含量、水分利用效率等值。结果表明:不同保墒灌溉栽培方式对冬小麦均有增产作用,平均增产13．46％,其中穗长平均增加7．15％。不孕小穗数平均降低21．78％。结实小穗平均增加11．42％,穗粒数平均增加10．82％．千粒重平均增加11．05％。保墒灌溉栽培方式的冬小麦灌浆期旗叶叶绿素含量降低减缓,MDA 含量降低、SOD 含量增高,水分利用效率平均提高 24．03％,以免耕留茬方式增产幅度最大,水分利用效率最高。更多还原

【Abstract】 It was down by field experiment that impact of cultivations of moisture conservational irrigation on winter wheat yield and physiological characteristics at channel irrigation area shannxi province.Field experiments for five treatments and results showed that the average water use efficiency of the cultivations of moisture conservational tillage treatments for winter wheat were 24.03% higher than traditional cultivation ways,the moisture conservational tillage can improve the winter wheat’s physiological characteristics,delay the decrease of chlorophyll content in the flag leaves.The MDA content decreased and the SOD content increased tend to significance level.The spike numbers increased 11.42% and 1000-grain weight increase 24.03% and the economic output increased 13.46% higher than that of traditional cultivation ways.The moisture conservational tillage would be cultivation technical to stable yield and high yield in irrigation area.更多还原