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为明确河南省小麦田杂草发生情况,从而制定合理、有效的杂草防除策略,对河南省10地市15个县(市、区)小麦田杂草发生情况进行了调查分析。结果显示,河南省小麦田主要杂草有17种,其中禾本科杂草4种,阔叶杂草13种。阔叶杂草播娘蒿、猪殃殃、荠菜在河南省发生较为普遍,成为小麦田恶性阔叶杂草,而禾本科杂草节节麦近年来发生逐步加重,成为麦田杂草防治的难点。河南省不同地区草相有较大差异,杂草发生呈现区域分化特点。南阳地区杂草的种类最为丰富,达2.93种/m2;而信阳地区的杂草发生密度最大,达158.00株/m2,危害最严重。河南省杂草总体发生情况呈现由北向南逐渐加剧的态势。
In order to clarify the occurrence of weeds in the wheat field in Henan Province, we developed a reasonable and effective weed control strategy to investigate the occurrence of weeds in wheat fields in 15 counties (cities and districts) in 10 cities in Henan Province. The results showed that there were 17 main weeds in wheat field in Henan Province, including 4 species of weeds and 13 species of broad-leaved weeds. Broadleaf weeds sowing Artemisia annua, Galium aparine, shepherd’s pursefish occurrence in Henan Province is more common, becoming a wheat field malignant broadleaf weeds, and gramineous weed Festival wheat gradually increased in recent years, a wheat weed control difficult . There are great differences in the grass in different areas of Henan Province, weed occurrence showed regional differentiation. The species of weeds in Nanyang was the most abundant, reaching 2.93 species / m2; and the weed density in Xinyang was the highest, reaching 158.00 plants / m2, the most serious. The overall occurrence of weeds in Henan Province showed a gradual increase from north to south.