不同剂量2,4-D丁酯对谷子田间杂草的防除效果  

Control Effect of Different Dose of 2,4-D Butyl Ester on Weed in Foxtail Millet Field

作　　者：车丽[1] 韩彦青[1] 孙常青[1] 杨丽[1] CHE Li;HAN Yanqing;SUN Changqing;YANG Li(Institute of Crop Sciences,Shanxi Academy of Agricultural Sciences,Taiyuan 030031,China;Shanxi Academy of Agricultural Sciences,Taiyuan 030031,China)

机构地区：[1]山西省农业科学院作物科学研究所

出　　处：《山西农业科学》2019年第8期1456-1458,1466,共4页Journal of Shanxi Agricultural Sciences

基　　金：山西省重点研发计划项目(201703D22111365)

摘　　要：通过比较不同剂量2,4-D丁酯对谷子田间杂草的防除效果,为筛选适宜谷子生产的除草剂最佳使用剂量提供理论依据。结果表明,喷施25,40d后,2,4-D丁酯2250mL/hm^2处理的株防效和鲜质量防效均最好,鲜质量防效分别达到79.74%,85.82%,与喷施清水(CK)相比,2,4-D丁酯1125mL/hm^2处理增产效果最佳,增产率达到29.44%,2,4-D丁酯1500mL/hm^2处理次之。1125mL/hm^2是谷子生产中2,4-D丁酯使用的最佳剂量。The paper compared the control effect of different dose of 2,4-D butyl ester on weed in foxtail millet field,which could provide theoretical basis for screening suitable herbicides dose for foxtail millet production.The result showed that after spraying 25 d and 40 d,plant control effect and fresh quality control effect were the best by 2 250 mL/hm^2 2,4-D butyl ester treatment,and fresh quality control effect reached 79.74%and 85.82%,respectively.Compared with spraying water(CK),yield-increasing effect was the best by 1 125 mL/h^m2 2,4-D butyl ester treatment,increase rate was 29.44%,following 1 500 mL/hm^2 2,4-D butyl ester.Therefore,1 125 mL/hm^2 is the best dose of 2,4-D butyl ester for millet production.

关 键 词：谷子 2 4-D丁酯 防除效果 

分 类 号：S451.229[农业科学—植物保护]