33%嗪吡嘧磺隆水分散粒剂在机直播稻“播喷同步”机械除草新技术中的应用
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摘要
为解决机直播水稻田草害重、防治难的问题,研究了33%嗪吡嘧磺隆水分散粒剂在机直播田"播喷同步"机械除草新技术中的应用效果。结果表明:机械施药20d后,33%嗪吡嘧磺隆水分散粒剂有效成分84.2或99.0g·hm~(-2)处理对水稻出苗没有影响,与未施药对照比出苗率为96.2%。施药48d后,99.0g·hm~(-2)处理,对稗草、阔叶草和莎草植株的密度和鲜重防效达98%以上,降低除草剂剂量15%后,对杂草防效没有显著降低,仍为优良水平。表明33%嗪吡嘧磺隆水分散粒剂采用机直播稻"播喷同步"机械除草技术在水稻生产中应用前景良好。
In order to solve the problem of weed damage and difficult control in direct seeding rice fields,33%metazosulfuron WG was applied with a new weed control measure of synchronous seeding and spraying herbicides.The results showed that there was no negative influence on the rice seedling emergence rate after 20 din mechanical herbicide application.The rice seedling emergence rate was respectively 96.2% at 20 days after treatment of 84.2 or 99.0 g·hm~(-2) metazosulfuron WG,when it was compared with untreated control.The weed control efficiency of Echinochloa crus-galli,Cyperus difformis and broad-leaf weed were up to 98% at 48 dby99.0 g·hm~(-2) metazosulfuron WG.There was no significant decrease of weed plant density and fresh weight control efficiency after 15% herbicide dosage was dropped.It suggested that there was a better control for weed when 33% metazosulfuron WG was applied with the weed mechanical control measure of synchronous seeding and spraying herbicides by rice direct seeding machine.
In order to solve the problem of weed damage and difficult control in direct seeding rice fields,33%metazosulfuron WG was applied with a new weed control measure of synchronous seeding and spraying herbicides.The results showed that there was no negative influence on the rice seedling emergence rate after 20 din mechanical herbicide application.The rice seedling emergence rate was respectively 96.2% at 20 days after treatment of 84.2 or 99.0 g·hm~(-2) metazosulfuron WG,when it was compared with untreated control.The weed control efficiency of Echinochloa crus-galli,Cyperus difformis and broad-leaf weed were up to 98% at 48 dby99.0 g·hm~(-2) metazosulfuron WG.There was no significant decrease of weed plant density and fresh weight control efficiency after 15% herbicide dosage was dropped.It suggested that there was a better control for weed when 33% metazosulfuron WG was applied with the weed mechanical control measure of synchronous seeding and spraying herbicides by rice direct seeding machine.
引文
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[19]周育水,陈前武,欧阳勋,等.33%嗪吡嘧磺隆WG防治水稻直播田杂草试验报告[J].福建农业,2015(1):83-84.
[20]贾秀娟.水田杂草稻稗防治试验[J].现代化农业,2017(1):13-14.
[2]黄应权.水稻强化栽培技术的应用与实践[J].农业工程,2016(4):94-95.
[3]刘小林李就好,邹一平,等.机械精量穴直播技术对水稻产量与抗逆性的影响[J].江苏农业学报,2010(3):658-660.
[4]王在满,郑乐,张明华.不同播种方式对直播水稻倒伏指数和根系生长的影响[J].江苏农业学报,2016(4):725-728.
[5]张庆政.水稻生产全程机械化的推进路径选择[J].农村经济与科技,2017(8):28-29.
[6]卢百关,秦德荣,樊继伟,等.江苏省直播稻生产现状、趋势及存在问题探讨[J].中国稻米,2009(2):45-47.
[7]罗锡文,王在满.水稻生产全程机械化技术研究进展[J].现代农业装备,2014(1):23-29.
[8]罗锡文,蒋恩臣,王在满,等.开沟起垄式水稻精量穴直播机的研制[J].农业工程学报,2008(12):52-56.
[9]王在满,罗锡文,唐湘如,等.基于农机与农艺相结合的水稻精量穴直播技术及机具[J].华南农业大学学报,2010(1):91-95.
[10]黄洪,马国兰.一种除草剂对直播稻田杂草的防除效果及增产效应[J].湖南农业科学,2017(10):51-53.
[11]马国兰,刘都才,刘雪源不同除草剂对直播田杂草的防效及安全性评价[J].杂草科学,2014,32(1):91-95.
[12]徐庆国,刘红梅,黄丰.湖南直播稻发展趋势与对策探讨[J].作物研究,2015(3):296-299.
[13]强胜.我国杂草学研究现状及其发展策略[J].植物保护,2010,36(4):1-5.
[14]杨吉春,刘长令.2009年公开的新农药品种[J].农药,2010,49(1):58-59.
[15]Manabu S,Tetsuhiko Y,Yoshihiko N,et al.Development of a novel herbicide,metazosulfuron[J].Journal of Pesticide Science,2016,41(3):102-106.
[16]Ponnam D,Guang F Y.Sulfur-containing agrochemicals[J].Topic in Current Chemistry,2017,375(82):1-44.
[17]筱禾.新颖除草剂嗪吡嘧磺隆(metazosulfuron)[J].世界农药,2017(1):58-61.
[18]刘洋.未来水稻田除草剂登记的热点产品之嗪吡嘧磺隆[J].农药市场信息,2017(13):24-25,69.
[19]周育水,陈前武,欧阳勋,等.33%嗪吡嘧磺隆WG防治水稻直播田杂草试验报告[J].福建农业,2015(1):83-84.
[20]贾秀娟.水田杂草稻稗防治试验[J].现代化农业,2017(1):13-14.