上海农业学报Issue(4)：1-5,5.DOI:10.15955/j.issn1000-3924.2015.04.01
麦稻田水竹叶发生特点及其化学防除技术研究
Study on the occurrence characteristics and chemical control techniques of Murdannia triquetra in wheat and paddy fields
摘要
Abstract
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.关键词
水竹叶/麦田/稻田/发生特点/化学防除Key words
Murdannia triquetra/wheat field/paddy field/occurring characteristics/chemical control引用本文复制引用
田志慧,沈国辉,芦芳,顾士光,温广月..麦稻田水竹叶发生特点及其化学防除技术研究[J].上海农业学报,2015,(4):1-5,5.基金项目
上海市市级农口系统青年人才成长计划［沪农青字（2014）第1-24号］；上海市科技兴农重点攻关项目［沪农科攻字（2012）第2-10号］ （）
