Chemical Weeding in Dry Direct Seeding Fields of Single Cropping Middlelate Rice

• 作者: Huang Qing Li Huifen Li Kanghuo Liu Huaizhen Lu Xiuming Zhang Bin Zhou Shaochuan Zou Jixiang
• 来源期刊: Plant Diseases and Pests(植物病虫害研究：英文版)
• 学科: 农学
• 关键词: 化学除草 直播田 水稻 单季 苄嘧磺隆 丙草胺 土壤处理 综合处理
• 年，卷（期）: pdapzwbchyj_2014,（3）
• 页码范围: 34-38
• 页数: 5页
• 分类号: S451.21

摘要

Chemical weeding in dry direct seeding fields of single cropping middle-late rice was studied in Huida vegetable farm of Huizhou City in 2012. The main treatment was herbicide( pretilachlor + bensulfuron-methyl,Yangguo and butachlor),and the sub-treatment was application method( soil treatments,seedling treatment and integrated treatment). The results showed that 80 g pretilachlor + bensulfuron-methyl( 36% pretilachlor + 4% bensulfuron-methyl) diluted with 50 kg water could be sprayed or 200 g Yangguo( 23. 9% butachlor + 1. 1% bensulfuron-methyl) mixed with 15 kg sandy soil could be broadcasted per 667 m2 on the sowing day or the second day under moist condition of soil,which could effectively control weeds in dry direct seeding fields of single cropping middle-late rice.