摘要
为了解决44%谷友WP在推广中的药效不佳或药害问题,采用4因素4水平和3因素2水平的正交试验和新复极差法统计分析,针对施药剂量、喷灌水量、整地质量、土壤墒情等影响因素进行44%谷友(单嘧.扑灭)WP防控杂草及其对谷子产量影响的比较试验。结果表明:7个试验因素对44%谷友WP防控杂草效果均具有重要的影响,其中,施药剂量、灌溉水量、整地质量、土壤墒情是影响谷子产量的最重要因素。根据谷子产量和经济效益,确定了44%谷友WP经济、安全、高效防控谷田杂草技术的最优方案:44%谷友WP的剂量为1800g/hm^2,在播种后出苗前进行土壤处理;耕耙地要坚实;土壤含水量要达到15%;药后不进行喷灌;在45天高药效持续期内能有效控制谷田杂草,尤其是双子叶杂草。
In order to resolve the poor efficacy or phytotoxicity problems in promotion of the herbicide monosulfuron plus propazine 44% WP,adopting four factors four levels and three factors two levels orthogonal test by Duncan＇s new multiple range method for statistics and analysis,herbicide dose,sprinkler irrigation water volume,quality of soil preparation,soil moisture content such impact factors of comparative trials carry on research the monosulfuron plus propazine 44%WP about prevention and control weeds and millet yield influence.Results showed that：seven experiment factors on the monosulfuron plus propazine 44% WP reference prevention and control weeds had important influence effect,among them,herbicide dose,sprinkler irrigation water volume,quality of soil preparation,soil moisture content or influence the most important factors of millet yield.According to yield and economic benefit,determine the monosulfuron plus propazine 44% WP economic,safe,effective prevention and control techniques of weeds in field of optimization scheme：The monosulfuron plus propazine 44%WP dose was 1800 g/hm 2 .Before after planting seedlings in soil treatment,plough rake land have to tightly don＇t loose.Soil moisture to achieve 15%.Spraying herbicide did not carry on spray irrigation,45 days high in the effect duration control weeds in millet field,especially dicotyledonous weeds.
出处
《中国农学通报》
CSCD
北大核心
2011年第30期135-141,共7页
Chinese Agricultural Science Bulletin
基金
河北省科技支撑计划项目"广谱型谷田专用除草剂‘谷友’的使用技术研究与推广应用"(09250307D)
关键词
谷子
除草剂
44%谷友(单嘧·扑灭)WP
杂草
化学防控
foxtail millet
herbicide
the monosulfuron plus propazine 44% WP
weeds
chemical prevention and control
