排水烂田小春农田杂草及其防除方法研究

STUDIES OF WHEAT FIELD WEEDS AND THEIR CONTROL METHODS IN DRAINAGE SLUSH PADDY FIELDS

排水烂田(脱潜型水稻土)从排水第2种植年起,小麦田间杂草危害趋于严重,看麦娘是其主要杂草类型。轮作和除草剂绿麦隆、拿扑净对不同种值年小春田间杂草均有明显防除效果。小麦田除草绿麦隆用量以0.35公斤/亩为宜。杂草防除促进小麦、油菜生长,增产效果十分显著。

From the second planting year of drainage on slush paddy fields (degleyed paddy soil), weed harm tends to be serious. Alopeeurus aequalis sobl. is the main type of weeds, Rotation and weedicide (Chlortoluron and sethoxydim) are effective on the weed control of wheat rields in all the planting years in this study. The suitable concentration of the weedicide (Chlortoluron) on wheat fields is 0.35kg mu^(-1). the weed control promotes wheat and rape growth and significantly increases their yields.