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稻田杂草有很多种类,要想有效地控制杂草,必须根据杂草的种类及除草剂的杀草谱,合理地确定化学除草剂的剂型及使用方法。稻田杂草的滋生情况和相应的防治措施如下:一、以稗草为主的稻田。叶用96％禾大壮,每亩3～4两,对细砂20斤,在稗草2～3叶期撒施。施药后1周内要保持水层,灌水不超过1.5寸,否则有药害。二、稗草、鸭舌草、萤蔺草混生的稻田。可用60％丁草胺对细砂20～30斤,在插后3～5天撒施。也可每亩用3～4两12％恶草灵,在细粑地用瓶甩施,水层保持两天后插秧。还可用丁草胺和恶草灵等份混合,在插后3～5天撒施,效果优于单用。
There are many types of weeds in paddy fields. In order to control weeds effectively, it is necessary to rationally determine the dosage forms and methods of using chemical herbicides according to the types of weeds and the herbicidal herbicides. Paddy field weed breeding situation and the corresponding control measures are as follows: First, barnyard grass-based rice fields. Leaves with 96% Wo big Zhuang, 3 to 4 acres per acre, 20 pounds of fine sand, 2 to 3 leaves in the barnyard grass sprinkling. Within 1 week after application to maintain the water layer, irrigation does not exceed 1.5 inches, otherwise there is injury. Second, barnyard grass, Monochoria, firewood mixed rice fields. Available 60% butachlor on fine sand 20 to 30 pounds, 3 to 5 days after the sprinkle applied. Can also be used per acre with 3 to 4 two 12% oxacillin, with fine bottle to throwing facilities, water two days after planting. Also available butachlor and evil spirit mixing equal parts, 3 to 5 days after sowing, the effect is better than single use.