一、注意环境条件对药效的影响 1、大气温度。大气温度对药效有明显影响。气温在20℃以下施药效果差。温度上升,药效提高,用药量可适当减少;但是,对于易挥发药剂2.4—D丁酯、氟乐灵等,在28℃上时应停止使用。 2、土壤温度。除草醚、绿麦隆、敌草隆、扑草净、麦草敌等被 First, pay attention to environmental conditions on the efficacy of 1, the atmospheric temperature. Atmospheric temperature has a significant effect on the efficacy. The temperature below 20 ℃ ineffective spraying. Temperature rise, improve efficacy, dosage may be appropriate to reduce; However, the volatile drugs 2.4-D butyl, trifluralin, etc., at 28 ℃ should be discontinued. 2, soil temperature. Weeding ether, chlorotoluron, Diuron, prometryne, wheat grass enemies were