The cucumbers are already sitting on the melons, why pinch them?

For other cucumbers to grow better. The cucumbers on the cucumber vine should not be too dense, otherwise each one will not grow well.

It is necessary to ensure that the number of sitting melons is not too much, because if the number is too much, there is no way to get enough nutrition.

To ensure the quality of cucumbers, if there are too many melon buttons on one main vine, it will share the nutrients of the whole plant, so that the cucumber harvest of the plant is not good.

When planting cucumbers, remove all the excess side buds and whiskers before hanging the vines to reduce the competition for nutrients.

The cucumber whiskers will absorb the nutrients of the melon, and the cucumber whiskers will also be wound on the hanging rope to fix the cucumber plant, which is not conducive to the fall of the cucumber in the middle and late stages.

The reason why cucumbers can't sit down is because of improper fertilization, frequent application of nitrogen fertilizer during management, resulting in too lush branches and leaves, resulting in cucumbers can't sit on melons, or the temperature is too low, cucumbers are not cold-resistant, and low temperatures are not conducive to cucumbers sitting on melons.

Cucumbers prefer warmth and are not tolerant of cold. The fertility temperature is 10 32. Generally, 25 32 during the day and 15 18 at night grow best; The most suitable ground temperature is 20 25, and the lowest is about 15. The optimal temperature difference between day and night is 10 15.

Due to improper cultivation management or climatic factors, a large number of melons often occur, which seriously affects the yield. Causes and prevention methods of melons:

The seedlings are weak and small.

The melon seedlings are too weak, the nutrient accumulation is small, and at the same time, with 2-4 melons, it is necessary to turn melons. Prevention method: appropriate amount of biological water fertilizer, 1 kg of zinc sulfate per mu, expand the leaf area, enhance growth; Increase the night temperature to about 20 for 2-3 days, and about 25 during the day to accelerate the growth of leaf area; Thin out part of the melon, concentrate the nutrients and expand 1-2 melons first.

The temperature difference between day and night is small.

In the late melon setting stage, the soil is higher than 20 for a long time, and the temperature difference between day and night is less than 10, and the light and products are consumed in large quantities. Precautionary measures: master 25-32 during the day and 13-18 at night; For the greenhouses with vigorous growth, control the prosperity and promote melons; If the melon strips are scarce, spray the mixture of flower-promoting fruit and high potassium nutrients to promote the expansion of melons and melon strips.

The leaves are too vigorous and the melons are turned into melons.

Cucumber plants grow seedlings and melons, if the plants are long leaves and long stalks, and the vegetative growth is too vigorous, it will inevitably inhibit reproductive growth and turn melons. Prevention methods: control water, temperature, nitrogen fertilizer after planting, squat seedlings to promote roots, inhibit vegetative growth, and promote melon setting.

The temperature is too low to melt the melon.

When the daytime temperature is lower than 20, the cucumber leaves cannot photosynthesize normally, and they are malnourished for three consecutive days, and hollowing melons will appear. Prevention method: increase mulch at night, cover the grass early during the day and at night, and increase the temperature of the shed.

Potassium deficiency melon. The proportion of nitrogen, phosphorus and potassium required for cucumber growth is about 5 2 6, and 78% of the potassium is absorbed by melons and fruits, and insufficient potassium nutrition will turn into melons. Prevention method: In the case of sufficient organic fertilizer, 25-50 kg of high-quality potassium carbonate per mu should be applied to the base fertilizer; Regular spraying of 99% high-purity potassium dihydrogen phosphate at the fruiting stage had a significant effect on strengthening seedlings and promoting melon expansion. Control nitrogen and phosphorus fertilizers to prevent inhibition of potassium absorption.

Diseased melons. Cucumbers are often defeated on downy mildew, gray mold and black spots, and the photosynthetic ability of infected plants is poor and easy to turn melons. Preventive measures: Prevent diseases.

The vine growth disorder during the growth process of the cucumber trembling plant will destroy the branching ability of the cucumber plant, resulting in the plant only male flowers, no female flowers, or only a very limited number of female flowers at the tip of the vine. This can seriously affect the yield and yield of cucumbers.

In order to count the number of vertical holes, it is necessary to strictly control the crazy growth of melon vines, promote the development of cucumber plant branches and leaves, enhance their tillering and forking ability, and ensure that the female and male flowers open evenly on the same plant. The specific method is: every time you spray or spray foliar fertilizer, add 1 capsule of "Vegetable and Fruit Zhuang Tiling" to every 15 kilograms of liquid, stir and dissolve.

It can inhibit the vegetative growth of cucumbers, promote reproductive growth, increase the amount of nutrients transported by nutrient transport ducts, strengthen seedlings, improve the speed of fruit expansion, self-regulate nutrition matching, efficient and hygienic, non-toxic and non-toxic. The use period is generally sprayed once before flowering, once at the young fruit stage, and once during the fruit expansion period, and the best effect is sprayed.

The atrophy of cucumber after fruit setting is physiological fruit atrophy, that is, melon.

In the process of cucumber cultivation, the lack of nutrients, or more than one melon, competing with each other for nutrients, or low temperature and low light, or infection and disease, etc., are easy to lead to the emergence of wilted melons in the young cucumber fruits just after fruit set.

Top dressing should be small and many times to meet the needs of cucumber before the camp, melon seedling stage, spray ethephon solution, promote the differentiation and formation of female flowers, improve the fruit setting rate, so that cucumber to achieve high yield. The fruit setting rate of cucumber is low, and the number of top dressing should be increased.

One of the most important reasons for the growth of cucumbers is that the night temperature is too high. It is recommended to control the night at about 13-15 to avoid the vigorous growth of the plants and promote flowering and fruiting.