5种茎叶处理剂对油菜田杂草的防除效果  

Control Effects of Five Kinds of Stem and Leaf Treating Agents on Weed in Rape Field

作　　者：王晓娥 王国军 郝兴顺 吴玉红 陈浩 刘勇 WANG Xiao-e;WANG Guo-jun;HAO Xing-shun(Hanzhong Institute of Agricultural Sciences,Shaanxi Rice Research Institute,Hanzhong,Shaannxi 723000)

机构地区：[1]汉中市农业科学研究所陕西省水稻研究所

出　　处：《安徽农业科学》2019年第15期133-134,153,共3页Journal of Anhui Agricultural Sciences

摘　　要：为了筛选秦巴山区稻油轮作冬季油菜田杂草防除的安全有效除草剂,指导大面积防治,选用10%精喹禾灵乳油等5种茎叶处理剂进行田间药效对比试验,考查施药前后杂草种类、数量、密度、生物量等指标。结果表明,17.5%精喹·草除灵乳油、20%氟吡·草除灵乳油、30%氨氯·二氯吡水剂+助剂1+助剂2对油菜田杂草的株综合防效达93.30%、97.48%、93.80%,鲜重综合防效达95.87%、97.84%、94.89%,优于其他2种供试药剂。秦巴山区稻油轮作冬季油菜田杂草兼有禾本科和阔叶类,但种群结构简单,以节节麦、牛繁缕发生密度、总生物量大,为两大优势种群;选择兼除禾本科与阔叶类杂草的茎叶处理剂进行防除有效。In order to select rice tanker as a safe and effective herbicide for weed control in winter rapeseed field in Qinba mountain area,and provide the guidance for the large-scale control of the disease in the field,five kinds of stem and leaf treatment agents such as 10% Quizalofop-P EC were selected for field efficacy comparison test, and weed species, quantity, density, biomass and other indicators before and after application were examined. The results showed that the comprehensive control effect of 17.5% Quizalofop-P·Benazolin ethyl EC , 20% Haloxyfop-r-methyl·Benazolin ethyl EC, 30% Aminopyralid·3,6-dichloropyridine-2-carboxylic acid AS + additive 1 + additive 2 on the weeds in rape field was 93.3%, 97.48%, 93.8%, the comprehensive control effect of fresh weight reached 95.87%, 97.84%,94.89%,and the control effect was better than the other two tested agents.In the winter oilseed rape field of Qinba mountain area, there were both grasses and broad-leaved weeds, but the population structure was simple. It is effective to select stem and leaf treating agent which is also used for weeding grass and broad-leaved weeds.

关 键 词：田间杂草 除草剂 药效试验 油菜 

分 类 号：S482.4[农业科学—农药学]