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多年田间普查与系统调查结果显示,在单季籼型杂交稻与小麦轮作麦区,麦田杂草发生与其他种植方式的麦区有着不同的特点:水稻让茬早,播前杂草密度大;禾本科杂草为优势种群,主要是日本看麦娘与菵草;杂草出苗早,出苗高峰在秋、冬季;杂草群体大,危害重。根据杂草发生特点、气候特点及当地小麦生产的实际情况,建立了播前灭茬、播后苗前土壤封闭、秋季苗期茎叶处理、早春补除的全程化除技术模式。
The results of field surveys and systematic surveys over many years showed that the characteristics of weeds in single-season indica hybrid rice and wheat rotation wheat fields and wheat fields were different from those in other cultivation methods: Gramineous weeds as the dominant species, mainly in Japan to see Amanita and razorgrass; weed emergence early, the peak emergence in autumn and winter; weed populations, endanger heavy. According to the characteristics of weed occurrence, climatic characteristics and the actual situation of wheat production in our country, we established a full-scale technical mode of removing stubble before sowing, soil closed before sowing, treatment of stem and leaf in autumn and early spring.