5%丙草胺·硝磺草酮颗粒剂防治水稻田鸭舌草应用技术  

The Study of Pretilachlor·Mestrione 5% GR against Monochoria vaginalis in Rice Field

作　　者：林文忠 刘巍巍 何献声 

机构地区：[1]大连市普兰店区农业技术推广中心,辽宁普兰店116200

出　　处：《农药》2017年第6期461-462,共2页Agrochemicals

摘　　要：[目的]明确5%丙草胺·硝磺草酮颗粒剂对水稻移栽田鸭舌草的防效和对水稻的安全性。[方法]在水稻移栽后5d进行了田间药效试验。[结果]5%丙草胺·硝磺草酮颗粒剂在推荐剂量下防效达到100%,而且对水稻安全,但是制剂量30000g/hm^2的高剂量对水稻不安全。[结论]5%丙草胺·硝磺草酮颗粒剂可以有效防除水稻田鸭舌草,建议其作为水稻土壤封闭处理用,在鸭舌草3~4叶前进行单独均匀或毒土撒施。[Aims] This study aims to confirm the control effect of the pretilachlor.mestrione 5% GR against Monochoria vag/md/s and the safety of the agentia on rice. [Methods] The field trials were carried out after 5 days after rice transplanting. [Results] The results showed that, at the recommended dose, the control effect pretilachlor-mestfione 5% GR reached to 100% against M. vag/md/s and were safe for rice. At the dosage of 30 000 g/ha, however, the agentia was not safe for rice. [Conclusions] Pretilachlor.mestrione 5% GR can control M. vaginalis effectively. The agentia can be applied in rice filed by soil spraying or spreading with mixing soil before 3-4 leaf stage ofM. vaginali.

关 键 词：丙草胺·硝磺草酮 水稻移栽田 鸭舌草 安全性 

分 类 号：S451.21[农业科学—植物保护]