摘要
肥床旱育秧田可发生杂草４２种，以稗草、马唐、鳢肠、空心莲子草、丁香蓼等为优势种。杂草群落明显受农业措施的影响，其中床址、盖种土来源可起决定作用。杂草群落主要有两大类型，即前茬为稻田的类型和前茬为旱田的类型。田间杂草的发生高峰在播种盖土后的５～７ｄ。多年的研究结果表明，丁草胺－恶草灵混用和二氯喹啉酸－苄嘧黄隆混用是最适宜药剂配方，前者于播种盖土后作土表处理时杂草的防效达８１．５％～９７．０％，后者在揭膜后２～３ｄ（秧苗达２叶时）作茎叶处理，防效则在９５％以上。并对有关应用技术进行了研究，由此建立的肥床旱育秧田化除配套技术对生产具有较强的指导作用。
A total of fourty two species of weed occured in dry fertile beds of rice seedling Among them, Echinochloa crusgalli, Digitaria sanguinalis, Eclipta prostrata were dorminants in the beds Weed communities were significantly influenced by agricultural practice such as different kinds of beds and soils The tests showed the best controls were obtained by applications of butachlor+oxadizon mixture and quinclorac+bensulfuron methyl mixture, which lead to 90% contorl in the nursing beds According to the tests, the technique system of weed control in dry fertile beds of rice seeding was suggested
出处
《江苏农学院学报》
CSCD
1998年第1期73-76,共4页
Jiangsu Agricultural Research
关键词
水稻
旱育秧田
杂草
药剂防治
rice+upland nursery
control practice/weed
