On the cucumbers in open ground, the greenhouse is one hollow -flower: why, what to do?

Why is there a hollow -flower on the cucumbers? Reasons and what to do is described in the article.

Content

Having received the friendly shoots of cucumbers, gardeners expect the same mass fruiting. When flowering begins, disappointment occurs: instead of ovaries on the lashes, only empty -flowers are visible.

Read on our website another article on the topic: "What is the best way to feed cucumbers for active growth and good harvest?".

Why, instead of an ovary, are hollow settings, and what should be done with this? Let's consider this problem together. The solution exists, and experienced gardeners know about this. Read further.

Why are there a lot of hollow cucumber in open ground: Reasons

There are a lot of hollow in open ground on cucumbers

To obtain greenhouse, the flower requires dust pollination. Pustrytes are men's flowers that serve for pollination. They are attached to the whip with a thin leg. In female flowers, instead of the legs, a tiny cucumber, which after pollination turns into a strong and crispy green. The complete absence of men's flowers will also bring nothing good. The ovary will not be experienced and fruiting will not come. Ideally, the number of female flowers should approximately equal the number of male. There are many reasons why instead of female flowers with a plot form empty -flowers.

To the most important reasons why empty -flowers are formed in open ground, include:

Obtaining unsifty seeds

Currently, there are few pure varieties, most cucumbers are hybrid. Therefore, by collecting seeds on your own, you can get such a poor -quality planting material. Beautiful plants grow from it, but fruiting is either absent at all. Or there is an ovary, but it is very small and cucumbers often have an irregular shape. To avoid this, it is recommended to annually buy seed material from trusted sellers.

High -quality seeds gave a hoodie, then it is necessary to pay attention to the time of assembly of the sowing material

The seeds collected in the previous season give few female flowers. Therefore, to obtain the maximum crop, fresh seeds should be postponed for three years for ripening. This is artificially done by warming up. Seeds are first disinfected with a pink solution of potassium permanganate, then dried and laid to heated near the heating radiator for 30 days. At the same time, the temperature does not exceed +28 ° C. And immediately before the seeding of the seeds, they are soaked in a solution of complex stimulants of type of type "Zircon".

Important to remember: Warming is not applied to hybrid varieties.

Incorrect watering mode

Cucumbers love high humidity. But they do not like watering with cold water. The roots of the plant in this case do not develop, but remain superficial and rot. The whip is strongly inhibited in growth. And if the temperature on the street is below +16 ° C - +18 ° C, they can completely die.

Proper watering involves regular hydration and loosening of the soil under the bushes of cucumbers. Water must first be drained into containers and warm to the air temperature, not lower +25 ° C. Experienced gardeners use one trick. Cucumber lashes are stopped watering before flowering. Then the plant, trying to survive, forms the maximum number of female flowers and ovaries. After collecting the increase, the bed is watered and left again.

Cold weather

The optimum temperature for forming the ovary ranges within the limits from +16 ° C to +25 ° C. In recent years, nature has been presenting to gardeners weather surprises. When a temperature decreases below +15 ° C, the formation of the ovary is terminated due to the fact that flowers simply do not bloom. You can solve such a problem by constructing a film shelter in the garden. The easiest way to make cucumbers bear fruit is to stop watering.

Heatwave

Increasing external temperature from +27 ° C And above, also causes temperature shock in cucumbers. Flowers lose their ability to pollinate. To force the cucumbers to bear fruit, they are watered both in the morning and in the evening, as much as possible to moisture as possible. It is advisable to build shelter in the form of a canopy or grid to protect plants from scorching sunlight.

Insufficient lighting

The lack of sunlight is obtained when placing the beds in the northwest shaded areas of the garden, and even with too thick landings. With a lack of sunlight, the formation of the ovaries is practically absent.

So that there is no shading due to dense landings, the seeds of cucumbers are planted at a distance 30-40 centimeters between plants, and 60-70 centimeters between rows. The appearance of the ovary is stimulated by the end of watering. It will not work to transfer the bed to a well -lit place, so pinching is used. There is a little trick here. The top of the cucumber whip in medium and late varieties break off after 6-8 sheets. In early varieties on 8-10 sheet. After pinching, lateral shoots on which female flowers are formed begin to actively form. The wind -pollinated varieties, in which men's flowers are formed on the main stem, and female with a tie on the side, are pinned much later. Otherwise there will be no pollinators.

The top dressing schedule is broken

Cucumbers love well -fertilized and moisturized soil. At the same time, it is not worth it thoughtlessly and without normal, to apply both organic and mineral fertilizers under plants. No need to give increased doses of nitrogen fertilizers that stimulate rapid growth. The formation of ovaries, in this case, is minimal.

For the good development of cucumbers, there is an installed top dressing schedule:

Before planting the seeds, the plot is dug up, the rotted compost or manure based on the calculation is previously scattered 10-15 kg per 1 sq. meter. You can add 1 tablespoone superphosphate and potassium sulfate in the same area.
After the appearance of two real leaves, a solution of nitroammofoski or urea is introduced under the cucumbers, based on 20 grams per 10 liters rain or defended water. It can be replaced with a solution of mullein or bird droppings.

After the start of fruiting, only two top dressing is carried out at the beginning and after a month. Take it 20 grams potassium sulfate or monophosphate 10 liters of water. It is always necessary to focus on the condition of plants in the garden. In each individual case, there will be its own points, which must be taken into account.

Cucumbers in a greenhouse bloom in a hollow: what to do?

Cucumbers in the greenhouse bloom in a hollow

For growing cucumbers in closed ground (in a greenhouse), self -pollinating varieties are more often used. They suffer from the same problems as the plants of open ground. What to do if the culture blooms with a hollow? To increase the number of ovaries, the same recommendations that are used for open soil plants are observed:

The right choice of seeds. For closed soil, parthenocarpic varieties are often chosen, which do not warm before landing.
Ending seeds for at least three years. The older the seeds, the smaller the hollow and more their yield.
Seed planting at the rate of not more than 2-3 plants on one square meter. Cucumbers tie and form a plant in several shoots. The side lashes grow freely until the first ovaries are formed. Then they are tied to the main stem.
Compliance with watering and top dressing. Water cucumbers with warm water and only under the root. Then the plant will not have stress. After watering, the soil will necessarily loosen. Top dressing is the same as in open ground. In connection with a longer fruiting and the need to form new ovaries instead of two, do three top dressing.
With an increase in temperature inside the greenhouse above +25-28 ° C, and in the case of landing by wind -pollinated varieties, good ventilation should be provided. For this purpose, windows and additional doors are made in the ceiling and walls of the greenhouse. Insects in the greenhouse are attracted to spraying the lashes with a honey solution.
The formation of the ovaries is inhibited if the cucumbers are not collected in a timely manner. It is advisable to carry the fruits in the morning and in the evening, or at least at least once a day.

Proper preparation of seed material and its landing, compliance with the rules for caring for cucumber lashes, will ensure the formation of numerous ovaries and good yields of cucumbers.

The ovaries of cucumbers in a greenhouse turn yellow: reasons, what to do?

Cucumbers are the most common culture grown in greenhouses. In closed ground, the danger of damage to young plants with late frosts and damage by sharp gusts of wind is reduced. In greenhouses, at least a quarter increase the yield of cucumbers.

The main reason for anxiety is the beginning of yellowing and the death of the ovaries of cucumbers. If these are isolated cases, then this is within the permissible limits. If the ovaries in the greenhouse die out massively, it is necessary to look for the cause. Among them:

The size of the daylight hours

The ovary will form and develop in good light. Cucumber lashes should be lit at least 12 hours. Good illumination will be when the greenhouse is located south or southeast. If the location of the greenhouse is correct, then the reason lies in thick plantations. The number of plants per square meter exceeds the norm. Wind -pollinated varieties are planted with density up to 3 plants per square meter, parthenocarpic - 1 plant per 1 square meter.

Non -compliance with the temperature regime

A comfortable temperature at which the cucumber lace develops well and the ovary is formed, is within the limits from +18 and maximum to +35 ° C. If the temperature changes throughout the day 6 ° C And more, they will certainly begin to turn yellow and sprinkle with the ovaries.

Increased humidity

It is manifested by the appearance of condensate on the walls, the ceiling of the greenhouse and parts of plants. Drops of moisture can provoke sunburn in the plant. But, which is much more important, increased humidity accelerates the development of fungal diseases in cucumber lashes. The first signs are black or brown spots on the stems and leaves. The humidity of the air of the greenhouse should not exceed 75%. In order not to increase humidity, regular ventilation is carried out.

Lack of nitrogen

It is manifested by the weak development of the whip, pale coloring and the death of the ovaries. It is required to carry out immediate feeding, for which they take one of the fertilizers:

Urea solution — 20 grams On a bucket of water.
A solution with a mullein. Approximately 1 kg The mullein on a bucket of water is left for fermentation. Prepare a solution from 1 liter concentrate on a bucket of water. Or in the same ratio a bird drop solution is prepared.

The greenhouse is a limited space. If there is no way to change the beds of the beds, in the fall, siderates should be planted. For example: mustard or barley. Having learned the basic rules for growing cucumbers, gardeners will be able to provide their family with delicious and crispy fruits throughout the season. Good luck and a rich crop of cucumbers!