【作者】 李香菊； 樊翠芹； 苏立军； 王贵启； 李秉华；

【Author】 Li Xiangju;Fan Cuiqin;Su Lijun;WangGuiqi;Li Binghua;Institute of Cereal and Oil Crops,Hebei Academy of Agricultural and Forestry Sciences;

【机构】 河北省农林科学院粮油作物研究所；

【摘要】 采用田间试验的方法,对华北小麦-夏播作物一年两熟地区冬小麦田施用醚苯磺隆后,其在土壤的残留对下茬作物生长及产量的影响进行了研究。结果表明:醚苯磺隆75%可湿性粒剂在冬小麦田施药量为0.7-4.2g/亩(商品量)时,对大部分后茬作物出苗无影响,当其用药量增加到4.2g/亩时,影响花生和棉花出苗。随醚苯磺隆用药量增加对后茬作物生长及产量的影响加重。醚苯磺隆0.7g/亩的处理,基本不影响后茬供试作物生长及产量,当醚苯磺隆用药量增加到1.4g/亩时,下茬棉花、大豆、花生产量(或生物量)比对照分别降低31.2%、16.6%和6.8%。作物对醚苯磺隆在土壤中残留量的敏感顺序为棉花〉大豆〉花生〉玉米。更多还原

【Abstract】 Field experiment was conducted to study the soil residue effect of triasulfuron on the following crops,corn,soybean,cotton,peanut,millet and brassica vegetable.It was indicated that the higher application rate of the herbicide,the greater impact of triasulfuron in following crops was.When the application rate was at 7.875g/ha in wheat field no significant differences in the emergence rate and yield of most following crops between the untreated and treated plots.Nevertheless the yield of cotton,soybean and peanut was decreased by 31.2%、16.6%and 6.8%respectively when the application rate was at47.25g/ha.The sensitivity of succeeding crops to triasulfuron was different.Cotton was the most sensitive crop and corn relatively was the insensitive one.更多还原