DTY、ETS防除机插稻杂草效果及应用技术初探

Preliminary Study on Weed Control Effect and Application Technology of DTY and ETS in Rice Transplanting

田间试验结果表明,供试的2个药剂在水稻机插后7 d即水稻返青后使用对稻田杂草有很好的防除效果,其中药后43 d:DTY 804 gai/hm2对禾本科草、阔叶杂草以及总草的株防效和鲜重防效分别为98.9%和99.1%、94.0%和94.9%以及95.1%和96.3%,ETS 849.5 gai/hm2分别为98.4%和98.7%、92.5%和93.8%以及93.8%和95.4%,均分别优于对照药剂50%苄嘧?苯噻酰WP 450 gai/hm2,且安全性好。

Field test results show that, the two pesticides tested had good control effect on weeds in paddy fields 7 days after rice machine transplantation. After rice greening, 43 days after treatment: DTY 804 gai/hm2 had 98.9% and 99.1%, 94.0% and 94.9%, 95.1% and 96.3% plant and fresh weight control effects on grasses, broad-leaved weeds and total weeds, respectively, and ETS 849.5 gai/hm2 were 98.4% and 98.7%, 92.5% and 93.8%, 93.8% and 95.4%, respectively. They were superior to 50% benzylpyrimidine benzothienyl WP 450 gai/hm2, respectively. And the safety is good.