磺酰脲类除草剂在冬小麦田的应用研究

本文对磺酰脲类高效内吸传导型除草剂防除冬小麦田间杂草效果进行了研究。所用处理有巨星、ＮＤ１、甲磺隆、绿磺隆以及其不同的混配处理。结果表明，所有处理对冬小麦田间主要杂草播娘蒿、离子草、藜和荠菜等阔叶杂草均有显著或极显著的防效，防除效果均在８７．５％以上，对一年生杂草黎的防效达９５％以上。在试验剂量下，各处理对小麦高度安全，且增产作用明显，达１７．１～３０．３％。并在麦收后，复播大豆、赤豆、玉米、谷子、白菜和白萝卜，观察了各处理对后茬作物的影响

A STUDY ON APPLICATION OF SULFONYLUREA HERBICIDES IN WIHTER WHEAT FIELDS

he experiment was conducted in order to control weeds in winter wheat fields with high effective internal absorbance conduction herbicides such as Express,Methsulfuron-methyl,Chlorsulfuron and their mixtures.The results showed that all treatments had significant or very sibnificant effects on control of major broadleaf weeds such as Descurainia sophia (L.) Schur.Choris pora tenella (Pall.) DC.Capsella bursapastoris (L.) Medic.Chenopodium album L.in winter wheat fields,and that overall control rate was over 87 5 percent,particularly,more than 95 percent for annual weed of Chenopodium album L.All treatments,provided that being within recommended doses as in the experiment,was safe to wheat plants,and had an effect of increasing wheat yield by 17 1￣30 3 percent.There haven′t been any obvious side effects of herbicides on seedling of soybean,red bean,maize,millet,cabbage and turnip sowed immedately after harvesting wheat.