番茄落花落果,在生产上发生较为普遍。虽然广大生产者都已认可使用激素处理,能够有效地防止落花落果,但是,由于这些激素大都是低浓度有效高浓度有害的药物,不同于普通农药。所以,使用不当,会造成严重的后果,因此,可以参照如下规则,正确使用这些激素: 一、使用浓度 能用于防止番茄落花落果的激素很多,在生产上常用的有2·4-D、PCPA、三十烷醇等。而使 Tomato flower drop fruit, occurs more commonly in production. Although most producers have approved the use of hormonal treatment, which can effectively prevent the drop of fruit, but because these hormones are mostly low concentrations of effective high concentrations of harmful drugs, different from ordinary pesticides. Therefore, improper use, can cause serious consequences, therefore, can refer to the following rules, the proper use of these hormones: First, the use of concentration can be used to prevent the fall of tomato flowers many hormones, commonly used in the production of 2.4-D, PCPA, triacontanol and the like. And make