Why cucumbers do not grow in a greenhouse and open field: what to do
To find out why cucumbers grow poorly in a greenhouse, you need to know the basic rules for caring for vegetables. This means that some item was missed or the recommendations were not followed.
Why do cucumbers die in the greenhouse
If the vegetable grower noticed that the cucumbers of his favorite variety began to develop slowly, the color of the leaves changed, the fruits form small, you need to radically change the care. There are several main reasons why cucumbers may not grow in greenhouse conditions.
- Why cucumbers do not develop well in a greenhouse, improper, too dense planting of seedlings contributes.This leads to the fact that cucumbers stop growing and even die. Therefore, you need to plant cucumbers correctly. The distance between cucumber beds should be approximately 70 cm. The interval between seedlings in rows should not be less than 55 cm.
If you plant cucumbers close to each other, then green leaves will block the access of air and light to the lower parts of the plant. The root zone will retain an excess of evaporated moisture, which contributes to the development of infections and the appearance of decay. The root system is intertwined and lags behind in development.
- When choosing seeds, you need to pay attention to which varieties they belong to - self-pollinated or insect-pollinated. For a greenhouse, the first option is best. If insect-pollinated varieties are planted, then free access of insects during flowering must be ensured. If this does not happen, then development stops.You can attract pollinating insects with the help of a sweet syrup, which is sprayed with green mass. Otherwise, there will be no crop in the greenhouse.
- Cucumbers love warmth. Seedlings of seedlings are very sensitive to temperature changes. Therefore, in order for plants not to stop developing, a warm climate should be maintained all the time. The normal temperature regime at night is +19 degrees, and in the daytime - +26. If the air temperature in greenhouse conditions is above +35 degrees, then the plant may even die. The level of air humidity in this case should not exceed 80%. Cucumbers do not grow in a greenhouse and when the temperature drops.
- Cucumbers are also afraid of drafts. Ventilation of the room must be carried out correctly. It is recommended to open the window on one side only. Only one door can be opened.
- Why cucumbers do not develop depends largely on compliance with the correct watering regimen. Castings dry and turn yellow as a result of rare, poor watering, while the fruits will form bitter.
On the contrary, over-watering causes root rot and fungal infection. In order for the fruits to grow well, it is best to water cucumbers in a greenhouse every 2-3 days.
During fruit ripening, it is recommended to reduce the frequency of watering. In this case, the plant will direct all its forces to the formation of fruits, and not to the growth of tops and leaves.
- The death of cucumbers in a greenhouse is often caused by pests and infections. The most common pests include melon aphids and greenhouse whiteflies. The most common infectious diseases that kill cucumbers are gray rot and powdery mildew. The main signs of the appearance of such problems in the garden of cucumbers is the blanching of the leaves, they can turn yellow, curl, spots appear on them. The fruits do not go well and form irregularly.
It should be borne in mind that cucumbers are very difficult to transplant, so it is better to immediately sow in the garden or in closed beds, or grow them at home in peat pots.
What to do if cucumbers grow poorly in a greenhouse
The main reasons why cucumbers do not grow in open ground or in a sheltered area is the choice of poor-quality planting material, as well as ignoring the disinfection stage.
Seeds must be properly selected, disinfected and germinated before planting. If the seeds were not properly prepared, then the sprouts that appear will grow slowly and will begin to bear fruit much later.
Cucumbers grow slowly due to non-observance of the sowing rules. In this case, even well-selected seeds will not give the desired result. Cucumber seeds should be planted in well-warmed soil.In cold soil, vegetable crops develop poorly. The recesses are not made too deep, about 2.5 cm. If you make a hole deeper, then the seedlings will lag behind in growth, and the fruits will ripen later. In addition, there is an increased risk that seedlings will not appear at all.
If cucumbers grow slowly in a greenhouse, attention should be paid to the composition of the soil and its quality. An important role in the development of cucumbers is played by the soil in the greenhouse. If it has not changed for 3-4 years, the supply of nutrients is depleted, bacteria and fungi are colonized. Therefore, it is necessary to renew the topsoil every year.
Another factor why cucumbers can stop growing is the wrong mode of adding organic or mineral components.
Cucumbers can grow poorly and slowly due to a lack of nutrients in the soil. You need to fertilize at least four times during the entire growing season.Fertilizers are applied for the first time two weeks after transplanting the seedlings into the greenhouse. By this time, the plant will adapt and take root. The next time you need to give time to top dressing before flowering. The third and fourth feeding coincides with the period of the beginning of mass fruiting.
Compensate for the lack of nutrients in the soil will help an aqueous solution based on bird droppings or cow dung. Often a mixture of wood ash, lime and blue vitriol is also used.
The very first thing to do when cucumbers are not growing is to change the rules of care. Be sure to normalize the mode of watering, weeding and the formation of a bush. Water for irrigation should be warm, settled. Do not use a hose for watering, as a jet under pressure erodes the soil, exposing the roots of cucumbers.
Why don't pour cucumbers
Cucumbers, especially during the fruiting period, are very responsive to nighttime temperature changes. Therefore, in order for the fruits to become well poured, it is necessary to observe the normal temperature regime - within +20 degrees. Cucumber fruits do not grow when the temperature does not exceed +11 degrees for several days. Cucumbers are poorly poured in the greenhouse, the shape is deformed, and the taste becomes bitter. The plant is afraid of the cold. At a temperature of +4 degrees, it completely dies.
You need to harvest a ripe crop in time. If you keep the fruits on the bush, new ovaries will not form or will not have time to pour. It is recommended to harvest once every two days. In addition to timely harvesting, it is required to remove diseased and damaged leaves on time. He althy, strong leaves should not be touched, as they nourish the fruit that is pouring under them.
Gardeners may also face such a problem when the ovaries begin to disappear. The main reason is the abundance of green mass. Therefore, it is necessary to get rid of excess leaves in time.
Why do cucumbers turn yellow and burn in a greenhouse
The causes of yellowing of cucumber leaves are a lack or excess of trace elements, hot air, cold water used for irrigation, pests and diseases.
If the cucumbers are burned, you can try to revive them.
- If only the leaves are damaged, but the stem remains intact, they must all be removed from the stem. Then you need to moisten the soil with warm water and create a shade with coolness for 2-3 days.
- If the leaves dry and burn, top dressing will help restore the plant. A drug such as Azotovit helps. To make a solution, you need to dilute 10 ml of the drug in 10 liters of water. After fertilizing, it is imperative to ventilate the greenhouse and slightly loosen the ground so that oxygen can better penetrate the root system.
- Sometimes an overabundance of nutrients can cause the leaves to turn yellow and dry out. For example, if you overdo it with wood ash, then a nitrogen deficiency develops in the soil. In this case, we reanimate in the following way: we prepare a weak solution of urea and spray the beds. If within a week the yellowness does not begin to subside, then the plant is sprayed with potassium monophosphate at night.
- Advice: “We have been growing cucumbers in greenhouse conditions for several years. Cucumbers love sprinkling, especially in hot weather. Once every 7 days, watering is combined with complex fertilizers. I really like such drugs as Kemira, Nitroammophoska, Mortar. They easily revitalize plants in case of wilting or infection.”
If none of the above actions helped, then you can plant the seeds again. You should only choose early-ripening varieties in order to have time to enjoy cucumbers.
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