为避免药害发生,首先应根据作物对农药的敏感性及防治对象的抗耐药性,结合农药的性质选择对路农药。其次要严格掌握施药浓度和用药时期,浓度不易过高,关键是施的均匀周到;花期用药尽量避开初花期。三是合理科学用药,尤其是混合用药,要严格按规定混配。如发生药害,应及时采取措施,缓解补救,以减轻药害损失。一、清水冲洗,叶片受害,可在受害株上连续喷清水洗刷几次,以清除或减轻植物着药量。二、浇足水。满足水,增加植物细胞的水分,从而降低植物体内药物的相对含量,起到缓解作用。三、喷施生物激素或追施速效肥料。按植物的不同生育期,喷施叶面宝、保多收、爱农、细胞分裂素等。结合浇水,追施速效氮素化肥,以增强植物生长 In order to avoid the occurrence of phytotoxicity, the first choice should be pesticide based on the sensitivity of crops to pesticides and the resistance of the target population, and the nature of the pesticide. Second, we must strictly control the drug concentration and medication period, the concentration is not easy to over-high, the key is Shi uniform and thoughtful; florescence medication to avoid early flowering. Third, rational scientific medication, especially mixed drugs, should be strictly in accordance with the provisions of mixing. In the event of injury, prompt measures should be taken to ease the remedy so as to reduce the harm caused by injury. First, rinse with water, the leaves of victims can be sprayed on the victim plant continuous washing a few times to clear or reduce the amount of plant medicine. Second, pour enough water. Meet the water, increase the water of plant cells, thereby reducing the relative content of the plant’s body of medicine, play a relieving effect. Third, spraying biological hormone or topdressing quick-acting fertilizer. According to the different plant growth period, spraying foliar treasure, Paul more income, farmers, cytokinins and so on. Combined with watering, topdressing available nitrogen fertilizer to enhance plant growth