26%精恶唑禾草灵·氰氟草酯·五氟磺草胺防除水稻直播田杂草的效果及对产量和水肥的影响

Effect of 26% Fenoxaprop-p-ethyl·Cyhalofop-butyl·Penoxsulam OD on Weed,Water and Nutrion in Rice Direct Seeding Field

为探究26%精恶唑禾草灵·氰氟草酯·五氟磺草胺可分散油悬浮剂防除水稻直播田杂草的效果及对产量和水肥的影响,进行了田间药效对比试验。结果表明,施用26%精恶唑禾草灵·氰氟草酯·五氟磺草胺可分散油悬浮剂对水稻直播田稗草(Echinochloa crusgalli(L.)Beauv)、千金子(Leptochloa chinensis(L)Nees)、异型莎草(Cyperus difformis L.)、鸭舌草(Monochoria vaginalis(Burm.F.))的防效达89.75%以上。通过测定,施用26%精恶唑禾草灵·氰氟草酯·五氟磺草胺可分散油悬浮剂能有效降低杂草对田间氮、磷、钾和水分的吸收,有效改善了田间的光照条件。测产结果表明,比CK未施药增产47.11%~54.76%,增产效果显著。

Effect of 26% fenoxaprop-p-ethyl.cyhalofop-butyl.penoxsulam od on weed,water and nutrion and yeild were stud- ied in rice direct seeding field. The results showed that the control efficiency of Echinochloa crusgalli,Leptochloa chinensis, Monochoria vaginalis and Cyperus difformis could reach up to 89.75%. Application of 26% fenoxaprop-p-ethyl .cyhalofop- butyl.penoxsulam od content significantly improved the light condition in the rice field and reduced the absorption of nitro- gen, phosphorus, potassium nutrition and water by broadleaf and cyperaceae weeds. And production test results showed that it resulted in a significant increase of the rice field with 47.11%-54.76% higher than CK.