With the continuous improvement of greenhouse technology, greenhouse cucumber cultivation is more and more popular among growers. Planting greenhouse cucumbers in autumn and winter can just sell a good price when harvested. However, planting cucumbers in greenhouses can cause cucumber malformations if not noticed. Cucumber malformation is mainly divided into the following cases: sharp-nosed melon, big belly melon, thin waist melon, curved melon, etc. No matter which kind of malformed melon appears, it affects the quality and yield of cucumber. Let's take a look at the causes and prevention methods of deformed melons in cucumber cultivation in greenhouses.

Causes of malformed melon:

1. Planting density

Reasonable planting density can ensure the ventilation and light transmission conditions between cucumber plants. If the planting density is too large and the ventilation and light transmittance are poor, it will cause the appearance of curved melons.

2, the soil is too dry and wet

If the soil is too dry, nutrients and water will be insufficient. Cucumber absorbs soil nutrients and water is limited, which will result in the appearance of curved melons, pointed melons and thin waist melons.

3, insufficient light

During the autumn and winter seasons, the light is slowly reduced. The decrease of light will affect the photosynthesis products of cucumber leaves. The decrease of photosynthesis means that the nutrients needed for cucumber growth are insufficient, and the appearance of curved melon and thin waist melon will appear.

4, the temperature is too high or too low

The most important thing in planting cucumbers in greenhouses is to keep the temperature in the greenhouse. The temperature rises and falls will affect the normal pollination of cucumbers.

5, poor pollination

When the cucumber is planted in the greenhouse, if the temperature and humidity are not suitable during the pollination of the cucumber, the cucumber will be pollinated poorly, and the big belly will appear. The appearance of thin waist melon.

Ways to prevent deformed melons:

1, reasonable close planting

When planting cucumbers, it should be reasonably densely planted according to the variety of cucumbers and soil fertility. Generally, it is best to plant between 3,500 and 4,000 plants per acre. Reasonable planting density is conducive to ventilation and light transmission in the field. The planting density is too small, and the yield of cucumber will be low, which will affect the income. The planting density is too large, affecting the ventilation and light transmission, and it is prone to deformed melons, which affects the quality of cucumber.

2. Reasonable water and fertilizer management

It is best to grow cucumbers with organic fertilizers, supplemented by chemical fertilizers. Fertilizers should be based on phosphorus and potassium fertilizers. If conditions permit, balanced fertilization can be measured after soil testing. During the growth of cucumber, it is necessary to properly irrigate the water according to the growth of the cucumber and the water content of the soil. It is best to lightly irrigate the small water. It is forbidden to irrigate the water and easily cause the rotten root of the cucumber.

3. Reasonable temperature control

The optimal growth temperature of cucumber is between 23-30 degrees during the day and between 13-15 degrees in the evening. If the temperature is too high or too low, it will affect the normal growth of cucumber, especially if the temperature is not lowered in time when the temperature is suddenly lowered in winter. It is easy to cause the indoor temperature to be too low to affect the growth of cucumber, so in the winter should pay attention to the weather changes in time to properly regulate the temperature inside the greenhouse.

4, reasonable and smooth

According to the growth of cucumber plants, the melons should be reasonably thinned, and the plants should be thinner and less melons.

The above is the reason and preventive measures for the appearance of malformed cucumber in greenhouse in Xiaonong. I hope to help everyone.

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