近年来,随着蔬菜面积的扩大,2,4-D越来越受到菜农的欢迎。因为,低浓度的2,4-D能刺激植物生长,可用于防止落花落果,且能提高坐果率,促进果实生长,提早成熟,从而达到高产高效的目的。根据本人多年实践经验,2,4-D在蔬菜上使用方法和注意事项应抓好以下几点。使用方法: 1、防止西红柿落花、落果。在每一花穗有2～3个花朵开放时,用一手持盛有10～20ppm的药液容器,一手将花压入药液中、使药液没至开花花穗的花梗。也可用小喷雾 In recent years, with the expansion of vegetable area, 2,4-D is more and more welcomed by vegetable growers. Because low concentrations of 2,4-D can stimulate plant growth, can be used to prevent falling flowers and fruits, and can improve fruit set, promote fruit growth, early maturity, so as to achieve the purpose of high yield and high efficiency. According to my many years of practical experience, 2,4-D vegetables in the use of methods and precautions should pay attention to the following points. How to use: 1, to prevent falling cherry, drop fruit. In each flower spike 2 to 3 flowers open, with a hand holding 10 ~ 20ppm of the liquid container, the one hand will be pressed into the liquid medicine, so that the liquid did not flowering flower peduncle. Small spray can also be used