禾大壮乳油对稻田杂草的防除效果试验

Effect of molinate EC on weed controlling of rice field in Zhanjiang

通过90.9%禾大壮乳油在水稻插秧田防除杂草效果及对水稻安全性田间试验,表明禾大壮可安全有效地防除稻田全生育期内稗草,对异型莎草和牛毛毡也有很好的控制作用,持效期达40天以上,但对扁秆镳草表现出一定的抑制作用。与农得时混用可显著提高对扁秆镳草的防效,是一组优良的稻田杂草解决方案。

According to the experiment of effect of 90.9%molinate EC on weed control in transplanting seedlings ricefield, the results showed that 90.9 % molinate EC had high effect on controlling Echinochloa crusgalli （L.）as well as Cypers difformis L. and Eleocharis yokoscensis （Franch. et Sav,） Tang et Wang with satisfied security, the efficient period lasted more than 40 days, but it showed [ower effect on Scirpus pla^zicul^zis Fr. Schmidt controL. The commixng application of 90.9 % molinate EC and 10% bensulfuron methyl increased control effective on Scirpus planiculmis Fr. Schmidt significantly, h is a good choice to solve the weed problems in rice field.