CAJ | 학술논문

对麦稻田水竹叶发生特点及其化学防除技术进行了研究。结果表明：麦田中的水竹叶种子3月上中旬开始萌发，4月中旬出苗达到高峰，5月中下旬麦子收割后匍匐茎留于田间，并随耕翻进入稻田开始无性繁殖；水稻种植3周后水竹叶进入生长旺期，并产生大量的一二级分枝，7月下旬和9月上中旬分别出现2个发生高峰；水竹叶9月上旬始花，下旬结实，10月上旬种子成熟，并自然开裂脱落田间，完成其整个生活史，全生育期约210 d。水竹叶的防除应坚持麦田防除压基数为主、稻田补除为辅的原则。（1）麦子生长期、水竹叶萌发前以喷雾法或毒土法使用苄嘧磺隆 WP 进行土壤处理，水竹叶出苗后2—4叶期以喷雾法使用氯氟吡氧乙酸 EC 或2甲·灭草松 AS 进行茎叶处理，（2）粳稻生长期、水竹叶2—3分枝期，以喷雾法使用氯氟吡氧乙酸 EC 或2甲4氯钠 AS 进行茎叶处理。上述药剂不仅除草效果好，药效表现快，而且对小麦和粳稻生长安全。
대맥도전수죽협발생특점급기화학방제기술진행료연구。결과표명：맥전중적수죽협충자3월상중순개시맹발，4월중순출묘체도고봉，5월중하순맥자수할후포복경류우전간，병수경번진입도전개시무성번식；수도충식3주후수죽협진입생장왕기，병산생대량적일이급분지，7월하순화9월상중순분별출현2개발생고봉；수죽협9월상순시화，하순결실，10월상순충자성숙，병자연개렬탈락전간，완성기정개생활사，전생육기약210 d。수죽협적방제응견지맥전방제압기수위주、도전보제위보적원칙。（1）맥자생장기、수죽협맹발전이분무법혹독토법사용변밀광륭 WP 진행토양처리，수죽협출묘후2—4협기이분무법사용록불필양을산 EC 혹2갑·멸초송 AS 진행경협처리，（2）갱도생장기、수죽협2—3분지기，이분무법사용록불필양을산 EC 혹2갑4록납 AS 진행경협처리。상술약제불부제초효과호，약효표현쾌，이차대소맥화갱도생장안전。
The occurrence characteristics and chemical control techniques of Murdannia triquetra were stud-ied in wheat and paddy fields.The results showed that the seeds of Murdannia triquetra in wheat fields began to germinate in mid-March,and the sprout reached the peak in mid-April.The creeping stems were left in the field after wheat harvest in mid-to-late May,and began the asexual reproduction by ploughing into paddy field.Mur-dannia triquetra entered the growth period 3 weeks after planting rice,and generated a large amount of primary and secondary branches.The generation of branches reached two peaks respectively in late July and mid-Septem-ber.Murdannia triquetra bloomed in early September and seeded in late September.Murdannia triquetra comple-ted its whole life cycle after seeds matured in early October and then fall in the field after natural cracking.The whole growth period was about 210 days.Control of Murdannia triquetra should stick to rely mainly on wheat field control while paddy field control subsidiary.(1 )Bensulfuron-methyl WP for preemergence treatment with spra-ying or toxic soil method were used in the growth period of wheat and before the germination of Murdannia triquetra.Fluroxypyr EC or MCPA +bentazon AS for postemergence treatment with spraying method were used in the 2—4 leaves stage of Murdannia triquetra.(2)Fluroxypyr EC or MCPA-Na AS for postemergence treatment with spraying method were used in the japonica rice growing period or 2—3 branches stage of Murdannia triquetra.These herbicides not only had good weeding efficacy and fast pesticide effect,but also were safe to the growth of wheat and japonica rice.