一、麦田冬季除草效果好小麦田杂草出草危害时间长,受冬季低温抑制,常年有两个出草高峰:第一个出草高峰在播种后10~30天,第二个出草高峰在开春气温回升后。早播的麦田,秋季雨水多、气温高,冬前出草量大;春季雨水也多,杂草发生量也大。晚茬麦冬前出草量少,春季出草量较多。遇秋冬干旱、春雨较多的年份,早播 First, the winter wheat weeding effect of wheat weeds in the grass a long time to endanger the grass, the winter low temperature suppression, perennial have two grassroots peak: the first grassroots peak 10-30 days after sowing, the second peak of the grassroots In the spring after the temperature rose. Early sowing of wheat fields, autumn, more rain, high temperatures, large amount of winter before the drafting; more rain in spring, the amount of weeds are also large. Late crop before the winter wheat less grass, more spring grass. When the autumn and winter drought, spring more years, early broadcast