How to prevent loofah "bee waist"

Recently, Yuncheng vegetable farmers Liu Shifu calls to reflect that the loofah in his shed has a lot of thick and thin bee waist melons, which greatly affects the quality of loofah. So, what are the reasons for the loofah bee? What problems should farmers pay attention to in management, and avoid the emergence of bee-waist melons?

The reason for the bee waist melon. First of all, loofah is a short-day crop. In short-day conditions, female flowers occur earlier and more, but the current sunshine time is long, the female flowers are relatively small, and the temperature in the shed is high, which is easy to cause the flower bud differentiation of loofah to be affected. The appearance of malformed melons. Secondly, the daytime temperature is high, and the nighttime temperature is hard to come down. This makes the plants respirate vigorously, and the organic nutrients consumed increase, resulting in insufficient nutrients for the growth of the melon strips.

Vegetable farmers should pay attention to the following points:

First, although loofah is warm and heat-resistant, the temperature environment of the greenhouse can not meet its normal growth in a short period of time. The vegetable grower can extend the time of covering the shade net by means of early cover and late withdrawal, increase ventilation and increase the amount appropriately. The number of waterings is used to increase the temperature difference between day and night, to create environmental conditions suitable for the growth of loofah, and to ensure the normal development of flower bud differentiation.

The second is balanced fertilization, appropriate reduction of nitrogen fertilizer application, can be applied twice to low-nitrogen, high-phosphorus and high-potassium water-soluble fertilizer, and then apply a balanced water-soluble fertilizer, combined with foliar application of boron fertilizer, to reduce the emergence of bee waist melon. For slightly prosperous plants, it can be sprayed with 25% auxin 750 times solution or 5% chlormequat 2000 to 3000 times to promote the balance between vegetative growth and reproductive growth.

The third is to appropriately reduce the concentration of anthers, to avoid the inhibition of the growth of melons due to the high concentration of anthers, and the emergence of malformed melons such as bee waist melons and short melons.

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