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番茄、辣椒、茄子等茄果类蔬菜的落花、落叶、落果给生产带来重大损失,下面简要介绍其发生原因及防止措施。 1.落花的原因 温度过高(35℃以上)或过低(15℃以下)并持续较长时间是主要原因。早春低温会影响花粉管的伸长及授粉,导致落花。氮肥施用过多,栽植过密,枝叶徒长,光照不足及生长后期高温干旱也会引起落花。
Tomatoes, peppers, eggplant and other solanaceous vegetables falling, deciduous, fruit drop to produce a significant loss, the following briefly describes its causes and preventive measures. 1. The reason for the falling flowers Temperature is too high (above 35 ℃) or too low (below 15 ℃) and continued for a long time is the main reason. Early spring low temperature will affect pollen tube elongation and pollination, resulting in falling flowers. Nitrogen fertilizer too much, too densely planted, follicle leggy, lack of sunlight and high temperature and drought in the late growth stage will also cause falling.