Reasons for cucumber leggy growth without fruiting and control methods

For high-yield cucumber cultivation, weather conditions, soil fertility and variety quality all play a major role. Only by fully understanding the growth habits and nutrient requirements of cucumbers can high yields be achieved. But various problems can also arise, and sure enough, some growers' cucumbers have shown the phenomenon of not setting fruit.

Vegetable grower Lao Fan has been growing vegetables for more than 5 years. In the past, no matter whether the market was good or bad, Lao Fan made money every year. But due to a momentary oversight, the cucumbers he planted this year only grow vines without setting fruit.

Grower Lao Fan said: The cucumber leaves look thick, the stems are thick, and the internodes are long, with gratifying growth, but they just do not set fruit. Even if fruit sets, it still drops, and there are especially many deformed fruits. Tell me, what should be done?

Cucumber growers, pay attention: leggy growth without fruit setting in cucumbers is a physiological disorder caused by nutritional imbalance. It is mainly caused by excessively high night temperatures or unreasonable fertilization. When leggy growth occurs, the nutrients of the cucumber are mainly supplied to the growth of the cucumber vines, and the cucumber fruits cannot get enough nutrients, resulting in the phenomenon of only vines growing without fruit setting.

Control methods for cucumber leggy growth

First, growers should reasonably control the temperature, especially the night temperature. The most suitable night temperature for cucumbers is 16-18°C in the first half of the night and 12-15°C in the second half of the night. Growers can close the vents a little later and ventilate in time in the morning to adjust the temperature inside the greenhouse, which can prevent cucumber leggy growth.

Growers should reasonably control water and fertilizer, stop applying high-nitrogen fertilizers, and appropriately increase potassium fertilizer. Growers with the conditions can apply some biological fertilizers with irrigation, which can also regulate the growth of cucumbers to a certain extent.

In addition, growers can also spray some chitosan, chitin, etc. on the cucumber leaves to regulate the growth of cucumbers. This allows the nutrients of the cucumber to be supplied reasonably and can promote more fruit setting.

Finally, growers can spray some growth regulators. When the cucumber grows to 3-9 true leaves, growers can spray some growth promoters, or chlormequat, etc. on the leaves on a sunny afternoon, to prevent leggy growth in cucumbers.