摘要
2017年和2018年采用田间小区药效试验的方法,评价52%精异丙甲草胺·丙炔氟草胺悬乳剂对花生田一年生杂草的防治效果和对花生的安全性。结果表明,52%精异丙甲草胺·丙炔氟草胺悬乳剂能有效防除河北省花生田一年生杂草,如马唐、牛筋草、马齿苋、反枝苋、酸浆等,适宜剂量为780~975 g a.i./hm^(2),对杂草鲜重总防效为88.2%~100.0%,防效均高于丙炔氟草胺和精异丙甲草胺2个单剂。52%精异丙甲草胺·丙炔氟草胺悬乳剂对花生出苗、生长和发育无影响,产量比空白对照增产30%以上,该药剂在花生播后苗前施药对花生安全。
The study aimed to evaluate the efficacy and selectivity of S-metolachlor·flumioxazin 52%SC in peauts during 2017—2018.The formulated mixture effectively controlled annual weeds,including Digitaria sanguinalis,Eleusine indica,Portulaca oleracea,Amaranthus retroflexus and Physalis alkekengil,reducing their fresh weight by 88%~100%at the appropriate dose of 780~975 g a.i./hm^(2).Efficacy was higher than that of S-metolachlor and flumioxazin separately.It did not negatively affect emergence,growth and development of peanuts.Compared with control,the treatment increased crop yield more than 30%.S-metolachlor·flumioxazin 52%SC was selective when applied after peanuts sowing and before seedling emergence.
作者
王建平
刘小民
许贤
李秉华
祁志尊
崔海燕
申贝贝
王贵启
聂东兴
WANG Jian-Ping;LIU Xiao-min;XU Xian;LI Bing-hua;QI Zhi-zun;CUI Hai-yan;SHEN Bei-bei;WANG Gui-qi;NIE Dong-xing(Institute of Food and Oil Crops,Hebei Academy of Agriculture and Forestry Science,Shijiazhuang 050035;Institute for the Control of Agrochemicals,MARA,Beijing 100125)
出处
《杂草学报》
2020年第4期44-48,共5页
Journal of Weed Science
基金
河北省重点研发计划(编号:18226431D)。
作者简介
王建平(1977—),女,河北大名人,助理研究员,研究方向为杂草综合治理。Tel:(0311)87670616;E-mail:wang_jp1@163.com。;通信作者:聂东兴,农艺师,研究方向为杂草化学防治。Tel:(010)59194136;E-mail:ndx318@163.com。
