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Position: Home > Articles > Efficacy and Selectivity of Pendimethalin 450g/L CS to Wheat Journal of Weed Science 2020 (2) 56-61

450g/L二甲戊灵微囊悬浮剂对小麦田杂草防除效果与安全性

作  者:
徐洪乐;樊金星;王欣欣;冯乃林;苏旺苍;薛飞;鲁传涛;吴仁海
单  位:
河南省农业科学院植物保护研究所;河南省农作物病虫害防治重点实验室;南京高正农用化工有限公司
关键词:
小麦;二甲戊灵;微囊悬浮剂;除草剂;防除效果;安全性
摘  要:
为明确二甲戊灵微囊悬浮剂土壤封闭处理对小麦田一年生杂草防除效果及对不同品种小麦的安全性,采用土壤喷雾法进行田间药效试验。结果表明,450 g/L二甲戊灵微囊悬浮剂在剂量为472.5、743.0、1 012.5 g a.i./hm~2下,对小麦田一年生杂草播娘蒿、荠菜的株防效、鲜重防效均在80.70%以上;对耿氏硬草的防效略差。相同有效成分下,450 g/L二甲戊灵微囊悬浮剂在药后90 d和120 d对杂草的防除优于330 g/L二甲戊灵乳油。450 g/L二甲戊灵微囊悬浮剂对不同品种(矮抗58、郑麦103、百农207)小麦均较安全,增产率为7.81%~11.67%。因此,450 g/L二甲戊灵微囊悬浮剂可用于播后苗前土壤处理以防除麦田杂草,且对小麦安全,推荐剂量为743.0~1 012.5 g a.i./hm~2。
译  名:
Efficacy and Selectivity of Pendimethalin 450g/L CS to Wheat
作  者:
XU Hong-le;FAN Jin-xing;WANG Xin-xin;FENG Nai-lin;SU Wang-cang;XUE Fei;LU Chuan-tao;WU Ren-hai;Institute of Plant Protection,Henan Academy of Agricultural Sciences;Henan Key Laboratory of Crop Pest Control;Nanjing GoodAgro Co.,Ltd;
关键词:
wheat;;pendimethalin;;safety;;weed control;;wheat fields
摘  要:
The efficacy against annual weeds and selectivity to wheat of pendimethalin 450 g/L CS was evaluated in field experiments. Pendimethalin 450 g/L CS at 472,743,1 012 g a.i./hm~2 effectively controlled annual grasses,including Descurainia sophia,Capsella bursa-pastoris at above 80% based on plant density and fresh weight,but failed to provide satisfactory control of Sclerochloa kengiana. Pendimethalin 450 g/L CS provided better control than pendimethalin 330 g/L EC at the same dosage 90 days and 120 days after treatment. Pendimethalin 450 g/L CS was selective to wheat cultivars AiKang58,Zhengmai103,Bainong207,increasing crop yield by 7.81%~11.67%. Therefore,pendimethalin 450 g/L CS effectively and selectively controls weeds at recommended dosage of 743 ~1 012 g a. i./hm2,when applied as a pre-emergence soil treatment after sowing wheat fields.

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