Less melon is a common problem in the production of cucumbers in spring greenhouses, how to avoid it

In the spring, many vegetable farmers report that the cucumber in the greenhouse is not set up with melon or abdominal cavity, which is mainly due to the lack of nutrients, the improper use of drugs or water in the greenhouse, and the vegetable farmer can take corresponding measures:

First of all, the reason why there are fewer cucumbers in greenhouses.

1. There are many pumps in production. As long as you can stay, some useless companions will not be taken away.

2. Improper fertilization. Excessive use of compound fertilizers, too much fertilizer in the soil, causes the plant roots to absorb nutrients, leading to unhealthy growth of cucumber growth.

3. Drug overdose. Disease prevention, which relies on drugs, leads to hormones in greenhouses, and cucumbers grow unhealthily, resulting in less toner and even gum melons. It is recommended that friends of vegetables can take more agricultural measures to prevent **.

4. Improper watering. When watering, there is no weather on the day and there is no time to water according to the laws of cucumber growth. After watering, the temperature decreases, the temperature is below 12 degrees and the humidity reaches 85, the roots are, and growth is not guaranteed.

5. The harvest is not timely. Because of the instability of the melon, in order to sell the **grid, the ripe lame remains on the stem. This will deplete plant nutrients and destroy the original growth law of cucumbers.

Second, precautionary measures.

1. The descent is appropriate. When growing a cucumber in a greenhouse, it can't fall too low. If it is too low, it is not good for the growth of cucumbers.

After lagging, cucumber plants are kept tall to ensure that there are fifteen normally functioning leaves on the stems so that the plants can carry out normal photosynthesis and maintain normal growth.

2. Pay attention to the sky. It is more important to quarrel appropriately and not to look for gums, otherwise it will be insufficient later. The yellow leaves at the bottom of the stem should be removed in time to reduce consumption.

3. Continuous cloudy days need to be strengthened with light processing. When the cloudy day is close to noon, the cotton is pulled, and if there is proper wind, the situation will not cool, but the temperature is about 2 degrees. It should not pull the grass immediately after the cloudy sky suddenly becomes clear, otherwise the plant will not fit.

4. Pay attention to fertilizer management. When the temperature is low, when the light is low, the watering is less stable, pour it once for 20 days. Also note that after watering, the temperature inside the shed rises to 30 degrees and the wind is slowly left.

When fertilizing, it should be watered, and it should be cast excessively, which should be easily absorbed by cucumbers.

1. Avoid excessive use of compound fertilizer, which makes the concentration of soil solution too high, which affects the normal growth of plants. 2. Avoid overdose. Indiscriminate application of hormone pesticides will cause physiological disorders of cucumber plants, so that cucumber growth points can not grow normally.

3. Avoid improper watering. Watering should pay attention to weather conditions, and analyze the pros and cons of watering according to the law of plant growth.

The biggest reason for the lack of cucumber in the spring greenhouse is that it blooms too much, and its pollination is uneven, which leads to the later fruiting is not very ideal, if you want to avoid this problem, you can reduce its flowering rate during the flowering period.

When the light is strong and the temperature is high, shorten the watering interval, the number of topdressing and the amount of topdressing should not be too much, according to the amount of cucumber picking, 10 15 days 1 time, each mu 15 20 kg of compound fertilizer. It is necessary to pay attention to watering in the morning on sunny days to avoid the occurrence of downy mildew and blight on cloudy days after watering.

Cucumber is a common vegetable, and it has high nutritional value and more vitamins in it, so many people are willing to grow cucumbers. When planting cucumbers, you need to pay attention to a phenomenon, that is, cucumbers may appear uneven growth, understand the reasons to solve this kind of problem, cucumber growth will be better.

There are many reasons for the poor growth of cucumbers, the first is that improper fertilization may cause uneven growth of cucumbers, and the growth time cycle is relatively short, which will occur. In the process of planting cucumbers, using chicken manure or these unfermented fertilizers, as the base fertilizer cucumbers will also appear for such a reason, when the roots and seedlings are burned, there will be uneven growth, and the difference is relatively large, so in the process of planting cucumbers, it is better to apply an appropriate amount of fertilizer.

It is better to have some control measures, so when using fertilizer, choose fermented fertilizer and organic fertilizer, and put fertilizer into the soil as soon as possible. In this way, cucumbers can provide more suitable nutrients when they grow, and can also promote the growth of cucumbers. The amount of fertilizer should be controlled each time it is used so that it does not affect the growth of the plant.

In the winter, you can use some fertilizer to make the vegetables better, but in the summer, too much fertilizer will cause some bad situations, which need to be controlled.

It may also be that the ground is very uneven, and the cucumber growth will be uneven, and the ground may become uneven when watering, so that the water supply to the plants is also unbalanced. The high terrain is high, and the low will be waterlogged, so the growth of cucumbers will be very poor, and it must be flooded with small water when watering. At this time, it is necessary to make the ground smoother, and water the cucumber with small water, so that the growth is better, and there will be no problem of lack of water and oxygen in the root system.

It may also be that the growth of cucumbers is relatively poor due to pests and diseases, so you need to do some treatment in advance and apply some pesticides to prevent insects. Paying attention to these aspects, coupled with reasonable measures, cucumbers grow better.

Improper fertilization should be avoided, attention should be paid to the flatness of the soil, and attention should be paid to the situation of root-knot nematodes, so as to avoid the phenomenon of uneven growth of cucumbers. Generally, due to insufficient fertilization, or no reasonable pruning, the fertility of the soil is insufficient, which will lead to this phenomenon.

This is caused by uneven nutrition, so we must observe the growth of cucumbers in ordinary times, and then supplement it with nutrients in time.

There are many factors that contribute to uneven growth, such as improper fertilization, pests and diseases, or uneven terrain.

It is necessary to pay attention to the planting temperature of cucumbers, cucumbers are resistant to low temperatures, slow growth, and it is best to use greenhouse planting for cucumbers in winter, grafting seedlings, sowing as early as possible, which can speed up the growth of cucumbers, select excellent seeds, ensure the quality of cucumbers, do regular maintenance, and prevent insects and pests.

First of all, we must lay the mulch, we must increase the temperature of the ground, so that we can reduce the evaporation and loss of water, we must reduce the humidity of the greenhouse, clean up the stagnant water in time, ventilate in time, and carry out more light.

These management tasks that need to be done well are cucumber water and fertilizer management, cucumber fertilization management, cucumber disease management, cucumber pest management, and cucumber growth management.

Simply think that the higher the temperature, the faster the growth of plants; It is believed that if the vines are vigorous, the growth of cucumbers will be good; It is believed that more pesticides will reduce the number of diseases.

It is necessary to apply fertilizer in more empty sheds, and to use more drugs, to carry out more pest control, and to keep more observations, but also to increase the yield, but also to make fewer leaves. Pay attention to the pollen and bright pollen.

Cucumber melon is a situation often seen in the case of planting cucumbers, which refers to the situation that after the female flowers are produced, they cannot continue to grow and develop into product melons, and slowly turn yellow and peel off, which seriously endangers the quality and quality of cucumbers, and causes huge damage to the planters. In the early stage, if the nutrient supply of the plant is not sufficient, such as fertilizer and water ** is not enough, the moisture content of the soil layer is less than 20%, its rhizome growth and development is not easy to be very good, the expression is that the plant is weak, and the nutrient content of the female flower is not enough if it is very easy to turn melons. If the liquid fertilizer is too much, the moisture content of the soil layer is too high, especially the base fertilizer is applied too much, the plant grows vigorously, at this time, the vast majority of nutrients are used for the growth and development of branches, only a little nutrients provide fruit growth and development, if the ambient humidity of the gas is very large, it is also very easy to cause pests and diseases, and the situation is that there are many melons. The cucumber melon is actually the cucumber seedling that has already occurred and generated on the cucumber seedlings after the cucumber seedlings are produced, due to the physiological environmental hazards of the cucumber plant, which can not continue to grow and develop, and become product melons. Instead, it slowly wilts and falls off.

Conceptually, cucumber-turned melons belong to physiological withering, and melon farmers are accustomed to calling cucumber "small production". Cucumber melon can occur in the open field and greenhouse planting process, and the melon rate can even be achieved above 50% in the greenhouse. Because the total area in the greenhouse is relatively limited, many growers and friends in the case of planting cucumbers, unprincipled increase the relative density of planting, which is also a reason for the large rate of cucumber planting in greenhouses.

When the relative density of planting in the shed exceeds the relative density of the species, the roots of the underground of the plant will compete for nutrients in the soil, and the leaf stems on the ground will compete for indoor space, the leaf stems will be vigorous, the leaves will coincide, the field is closed, and the natural ventilation and light transmission are not good. For cucumbers, the relatively suitable growth and development temperature is 20-30, the daytime temperature in summer can be 37, and the ultra-low temperature of the greenhouse in winter can be as low as 10, which are all worse phenomena, all of which are not conducive to the growth and development of cucumbers.

It's caused by high temperatures. When planting cucumbers in greenhouses, if the temperature in the greenhouse is higher than 30 degrees during the day and 16 degrees at night, it is very unfavorable to the growth of cucumbers. It will aggravate the respiration of cucumbers, thus hindering the photosynthesis of cucumbers.

As a result, the cucumber plant is undernutrient and the phenomenon of melon transformation occurs, and the female flowers cannot develop normally, and it is easy to form deformed melons.

This is related to the surrounding environment, it may be related to the variety, and it may be caused by the incorrect temperature, so this situation occurs.

It may be caused by the soil, you need to treat the soil directly, be sure to choose the right variety for planting, do not plant only one plant for a long time.

On the mulch film of the ridge, a planting hole with a diameter of 12 cm and a depth of 10 cm is made according to the plant distance. Before planting seedlings, water some water in the planting hole, and then put the seedlings in the manhole to cover the soil, and after the seedlings are planted, the mulch film around the planting hole is sealed tightly with soil. The depth of planting should be equal to the seedling mound and furrow surface.

If the cucumber seedlings are not very neat, the large seedlings should be planted around the shed, and the small seedlings should be planted in the middle of the shed, so that the growth of the seedlings is basically the same. Cucumber cultivation in greenhouses in early spring, the planting density is generally 4000 plants per mu, the density of early-maturing varieties can be increased to 4500 plants, and the late-maturing varieties should be appropriately reduced.

The first is to apply organic fertilizer, and it must be watered in time after customization, and it is necessary to apply fertilizer in time, and some farmhouse fertilizer can also be used at ordinary times, and the appropriate depth should be selected when planting, and it is necessary to strengthen field management, and it is also necessary to use the whole vine kidnapping method to manage.

Be sure to disinfect the soil in the greenhouse. Then you should also plant cucumbers at the best time, you can also prevent pests and diseases in advance, spray pesticides, and then water and fertilize my cucumbers more at ordinary times, be sure to pay attention to ventilation, moisture, and high temperature.

To achieve timely ventilation, the grass in the ground should be pulled out in time, watered in time, fertilized in time, pest control in time, and adjusted the temperature in the greenhouse in time.

Cucumbers in spring greenhouses stop growing in July, and beans, eggplants, tomatoes, etc. can be planted in the next stubble.

Cucumber cultivation techniques:

Site preparation. 5 cubic meters of organic fertilizer for land preparation and fertilization, 25 to 30 kg of superphosphate or 10 to 15 kg of diammonium phosphate (5 kg of superphosphate per cubic meter, 2 to 3 kg of diammonium phosphate per cubic meter). Before planting, plough the furrow, the furrow is 15 centimeters wide and 15 centimeters high, and covered with mulch.

Colonization. Determination of planting period: planting as soon as possible on the premise of ensuring that there is no freezing after planting, and planting in Chengde area is generally in late April and early May.

Temperature index requirements: the minimum night temperature is higher than 5, and the soil temperature is higher than 12 at 0 to 10 cm. The cucumber in the autumn dew field adopts the method of live broadcasting.

Planting density: 4000 to 4500 acres, planting in large and small rows, small row spacing 40 cm, large row spacing 80 cm, plant spacing 25 to 30 cm, planting with dark water method.

Manage. Sockets. After planting, the shelf should be planted as soon as possible, and the seedling should be pumped by wind, and the shelf can be a flower stand or a herringbone frame, about 8 to 10 cm away from the root.

Tie vines. The "8" method is used to tie vines to prevent abrasion of stems and vines and sagging stems. Every 2 to 3 knots are tied, should be carried out in the afternoon, the stem vine is easy to break in the morning, the tightness of the vine should be suppressed and the weak should be strengthened, and the growth of the plant should be tied a little tighter, and the height of the growth point is consistent.

Pruning and pinching. For the main vine and melon, all the side branches should be removed, and one or two leaves should be left after the side vine and melon, and all the tendrils of the tanju key should be removed. When the stem exceeds the head of the shelf, it is necessary to pinch the tip in time to promote the growth of the lower melon, and the method of twisting the tip can also be used to inhibit the growth of the upper part.

Fertilizer and water management. Timely watering and cultivating, the amount and frequency of water depends on the weather and growing period. Slow seedling water is watered 5 to 7 days after planting; water control, cultivating, and squatting seedlings before sitting on melons; When the root melon is 10 to 12 cm long, water the melon; Watering during the fruiting period is done every 5 to 7 days.

The principle of top dressing is that the front is light and heavy, a small amount of many times, urging melon fertilizer to be applied after the root melon sits, and the melon fertilizer is carried out after the root melon is harvested. Advocate the use of organic fertilizers, top dressing, wax pats.