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我省稻田杂草种类较多,水稻移栽后常须两次施药,栽后五天内先用除草醚防除稗草等一年生杂草,二十天后再用扑草净防除牙齿草。这种方法效果虽好,但较费工,且扑草净单用不当时易生药害。为此,我们在省农科所除草组的帮助下,参考稻草完—S配方,以我院研制的昆草3号与扑草净混用,期望一次施药兼除稗草及牙齿草。1974～1976年曾在建水、元谋、昆明、大理、会泽及贵州省农科院等地进行试验,结果一致表明,昆草3—扑混用时,扑草净用量较单用节省一半,防除牙齿草的效果接近稻草完—S,可达90％以上,对水稻安全。但因施药时期掌握
There are many kinds of weeds in paddy fields in our province. Two times after transplanting, rice must be applied twice. Weeding herbaceous plants such as barnyardgrass and other annual weeds should be controlled within five days after transplanting. Twenty-days later, prometryn should be used to control tooth grass. Although the effect of this method is good, but more labor, and promethium net use of improper easy to life injury. For this reason, with the help of the weeding team of the provincial agricultural science department, we refer to the formula of straw-S, and use the compound of Kuncao No.3 and prometryn which was developed by our hospital. 1974-1976 years in Jianshui, Yuanmou, Kunming, Dali, Huize and Guizhou Provincial Academy of Agricultural Sciences and other places to test the results consistently show that the Kuncao 3-flutter mix, the net consumption of prometryne alone save half, Control of dental grass effect close to straw End-S, up to 90%, on rice safety. However, due to the mastery of application period