CAJ | 학술논문

采用随机取点和倒置“W”型取样相结合的方法对河北省廊坊市、唐山市和秦皇岛市麦田禾本科杂草的发生情况进行了调查。结果表明：唐山市玉田县麦田有雀麦发生，相对多度为5.9％，发生程度处于第12位，田间频率达到6.8％，有进一步扩散的可能；唐山市丰润区和玉田县、秦皇岛市昌黎县麦田有少量狗尾草发生；廊坊市文安县、霸州市和固安县以及唐山市滦南县麦田没有发现禾本科杂草。
채용수궤취점화도치“W”형취양상결합적방법대하북성랑방시、당산시화진황도시맥전화본과잡초적발생정황진행료조사。결과표명：당산시옥전현맥전유작맥발생，상대다도위5.9％，발생정도처우제12위，전간빈솔체도6.8％，유진일보확산적가능；당산시봉윤구화옥전현、진황도시창려현맥전유소량구미초발생；랑방시문안현、패주시화고안현이급당산시란남현맥전몰유발현화본과잡초。
The occurrence of grassy weeds in wheat fields in different counties ( cities ) of Langfang City, Tangshan City and Qinhuangdao City were investigated by the methods of random sampling and inverted W-sampling pattern.The results showed that Bromus japonica was occured in Yutian County and the order of occurrence degree was 12th based on the relative abundance was 5.9%, but it could make more damage since the frequency was already 6.8%.There was a little Setaria viridis in Fengrun District, Yutian County and Changli County.Grassy weeds was not found in Wen'an County, Bazhou City, Gu'an County and Luannan County.