First, pay attention to timely fertilization! Loquat trees have been out of control for a long time, with insufficient nutrition and lack of auxin and micronutrients. The quality of loquat flowers is poor, and the flowers do not bear fruit.

Second, we should pay attention to the influence of low temperature, which causes flowers to wither. The flowering time of loquat is from 1 1 to 65438+February, and the cold air in the north is frequently immersed, so the temperature is low. After the pollen is stigma, it begins to germinate when the temperature is above 10℃, but it does not germinate well when it is above 35℃, and the effective pollination time of loquat is not long. Low temperature chilling injury will make loquat pollen unable to germinate and fertilize, which will lead to loquat withering. (2) Young fruits were damaged by freezing. When the temperature is lower than -3℃, young fruits are obviously damaged by freezing. The duration of low temperature is closely related to the freezing degree of young fruits. That is, the duration is short and the freezing degree is light; The longer it lasts, the more serious it is.