论文部分内容阅读
麦田杂草种类繁多,危害严重。近年来通过化学防治,主要杂草虽已得到有效控制,但次要杂草却不断上升,使杂草群落发生了新的变化。因此,需要不断地摸清田间杂草优势种类,并制定出相应的化除方法,才能使杂草得到持续的控制。为此,我们于2000~2002年对襄北岗地麦
A wide variety of weeds in wheat fields, endangering serious. In recent years through chemical control, although the main weeds have been effectively controlled, but the secondary weeds are rising, the weed community has undergone a new change. Therefore, we need to constantly identify the dominant species of weeds in the field, and develop a corresponding method of chemical removal in order to make weeds are continuously controlled. To this end, we from 2000 to 2002 on the North Hill to Mai