一、落花落果的原因1．环境因素当茄果类蔬菜进入开花结果期后，如温度不适宜，过高或过低均会导致花器官缺陷而引起落花。如番茄在夜温低于15℃或高于22℃，日间气温高于35℃均会引起大量地落花；辣椒在夜温低于10℃或高干32℃，日温高于38℃、或低于16℃时，尽管花芽分化数目 First, the reasons for falling plums 1. Environmental factors When fruits and vegetables into the flowering period, such as the temperature is not appropriate, too high or too low will lead to flower organ defects caused by falling flowers. Such as tomatoes at night temperatures below 15 ℃ or above 22 ℃, daytime temperatures above 35 ℃ will cause a lot of ground flowers; peppers in the night temperature below 10 ℃ or 32 ℃ high temperature, day temperature above 38 ℃, Or less than 16 ° C, despite the number of flower buds differentiated