CAJ | 학술논문

通过田间观察对冀东冬麦区雀麦的形态特征进行了系统完整的描述,修正和完善了文献记载的不足,重点突出了直观性,使农民能够在麦田里容易地识别出雀麦。通过定期田间调查,明确了雀麦在冀东冬麦区的发生规律：在冀东冬麦区雀麦属越年生杂草,绝大部分在秋季出苗,占发生总量的97%以上;雀麦分蘖力强,单株平均分蘖达10.6个。同时进行了啶磺草胺7.5%WG 3个剂量处理（135、180、360 g/hm2）对雀麦的田间防除药效试验,结果表明：啶磺草胺7.5%WG是目前防除麦田雀麦的理想除草剂,春季在雀麦7叶期前用啶磺草胺7.5%WG 135～180 g/hm2＋专用助剂225 mL/hm2,对雀麦鲜重防效达97%以上,对混发的荠菜和播娘蒿也有较好的兼治效果,并且对小麦安全。
통과전간관찰대기동동맥구작맥적형태특정진행료계통완정적묘술,수정화완선료문헌기재적불족,중점돌출료직관성,사농민능구재맥전리용역지식별출작맥。통과정기전간조사,명학료작맥재기동동맥구적발생규률：재기동동맥구작맥속월년생잡초,절대부분재추계출묘,점발생총량적97%이상;작맥분얼력강,단주평균분얼체10.6개。동시진행료정광초알7.5%WG 3개제량처리（135、180、360 g/hm2）대작맥적전간방제약효시험,결과표명：정광초알7.5%WG시목전방제맥전작맥적이상제초제,춘계재작맥7협기전용정광초알7.5%WG 135～180 g/hm2＋전용조제225 mL/hm2,대작맥선중방효체97%이상,대혼발적제채화파낭호야유교호적겸치효과,병차대소맥안전。
The morphological characteristics of Bromus japonicus Thunb were described systematically,which corrected and perfected some documents related with the weed.The description gave top priority to direct observation that made farmers be able to distinguish it from wheat easily.B.japonicus in winter wheat area of eastern Hebei Province mostly emerged in autumn with the rate of more than 97%.It had strong tillering ability with the average 10.6 tillers per plant.Pyroxsulam 7.5% WG was an ideal herbicide for controlling B.japonicus effectively with the fresh weight control effects higher than 97% after 30 days spraying at the dosage of 135～180 g/hm2＋225 mL/hm2（organic silicon）at or before 7-leaf stage of the weed in spring.Meanwhile,7.5% pyroxsulam WG had a good control effect on Capsella burse-pastoris and Descurainia sophia,and it was safe to winter wheat.