Features of planting and growing cucumbers in a greenhouse
Cucumbers are one of the most popular vegetable crops. The unique qualities of this product allow it to be planted in greenhouses made of polycarbonate materials. Such premises allow you to create ideal conditions that are perfect for obtaining a tasty and plentiful harvest.
Among the distinctive advantages of a polycarbonate greenhouse, one can single out a high level of light transmission, minimal thermal conductivity and excellent inertness to the influence of chemical factors. That is why such structures are in great demand among summer residents, who, thanks to them, receive a record amount of harvest.
With the help of such honeycomb structures, a unique microclimate is created, due to which there is a rapid and high-quality growth of fruits. However, this process must be approached with all responsibility, because not only the quality of the crop depends on it, but also the opportunity to get it as such. Only with a competent approach can everything be set up in such a way that the fruits grow healthy and of high quality.
A distinctive feature of polycarbonate is that it is a polymeric material, which today has almost completely relieved the market of the need to use glass or plastic.Most people mistakenly believe that greenhouses are only needed for growing in cold weather, but this opinion is wrong, because the structures perform well even in summer. Among the distinctive advantages that a polycarbonate greenhouse boasts during the cultivation of cucumbers, the following should be noted.
- High level of light transmission, which was achieved due to the delay of too bright sunlight. Thanks to this, you can not worry that the leaves of the plants will get burns or other problems due to the active exposure to the rays.
- Unique properties in the field of thermal insulation, which were obtained thanks to the huge number of vacuum mini-chambers present in polycarbonate sheets.
- Minimum weight which allows you to install even the largest structures on soils that are not able to withstand heavy loads. The main difference between such structures is that for their installation it is not necessary to build a foundation and other similar structures.
- Durability. In the process of production of such structures, high-quality materials are used, thanks to which they retain their attractiveness, reliability and strength characteristics for a long time. In addition, greenhouses protect cucumbers from constant exposure to strong winds, which often cause complete damage to the crop.
Variety selection
In order to ensure a good and large harvest, you need to carefully choose the most suitable variety. In the case of closed ground, self-pollinated and parthenocarpic varieties of crops are best suited.The main difference between both species is that they do not need bees for pollination, which is of paramount importance during the cultivation of such a crop inside a greenhouse structure. The main feature of self-pollinating varieties is that their pollination occurs due to the fact that pollen from one plant is transferred to another. As for the parthenocarpic variants, here the ovaries occur without any pollination, which is quite effective when planting a cucumber crop in closed conditions.
In addition, today hybrid variants are in rather high demand, which are characterized by the ability to withstand a number of diseases, infectious diseases and viruses. The main advantages of hybrid varieties are that they can cope with almost any external conditions, which has a positive effect on the amount of the crop and its quality.
The only drawback of hybrid cucumbers is that such vegetable crops do not transmit their qualities through seeds, so summer residents are forced to buy them every year. Another rather important advantage of such varieties is the duration of fruiting, which is several months. With proper and properly organized care, each plant produces more than 5 fruits, which has an effective effect on the total amount of the crop.
Hybrid cucumbers boast unique taste characteristics, attractiveness and resistance to transportation, which is of no small importance if you want to sell products.Unique properties allow the use of these vegetable crops both in their natural form and in the form of conservation for the winter.
Among the most popular and proven varieties for planting in greenhouse conditions, the following should be highlighted.
- "Zyatek F1". An extremely popular parthenocarpic hybrid variety, a distinctive feature of which is the ability to withstand a number of diseases. The advantage of this plant is that the first fruits can be seen after a month. These hybrid cucumbers are cylindrical in shape and do not grow too large, making them ideal for pickling. Fruits can be consumed both in natural and in the form of salting.
- "Everyone is the envy of F1." Despite the fact that this hybrid variety appeared relatively recently, it has already managed to win the hearts and favor of millions of summer residents around the world. The main advantage of this variety is its huge yield and unique arrangement of fruits, thanks to which it is possible to obtain many cucumbers from one plant. When planted in greenhouse conditions, these varieties can develop almost all year round, providing the owner with a tasty and high-quality harvest. The difference between the cucumber culture of this variety is the presence of a thin skin, due to which they are considered an ideal solution for conservation.
- "Fed dad F1". This variety is recommended for people who need salad types of cucumbers. Cucumbers are long and even, making them perfect for eating as a salad. But for conservation for the winter, such cucumbers are not suitable, since they differ in a cylindrical shape.They can easily be used in the process of preparing lecho and other similar products. Like other hybrid varieties, this variety boasts precocity and the ability to resist a number of diseases. It can survive in almost any conditions, even including lack of moisture and cold weather.
- Ecole F1. One of the newest varieties, which is considered the most successful parthenocarpic hybrid. A distinctive feature of this cucumber is that it gives the first fruits a month after planting. Zelentsy are obtained quite even, have a cylindrical shape and rather large dimensions.
- "Chinese cold-resistant F1". This variety is considered one of the most popular types of sweet cucumbers. It is only suitable for growing indoors, as it is much easier to tie up here. The main feature of this vegetable crop is the presence of powerful lashes that grow extremely quickly. As for the fruits themselves, they can reach 50 cm in length and are distinguished by huge shapes.
Soil and seed preparation
In order for the harvest to be as high quality and plentiful as possible, you need to do everything possible for the competent choice of seeds, as well as properly prepare the soil. Cucumbers that are grown in polycarbonate greenhouses love non-acidic soil, which has a large supply of nutrients. At the same time, one must be extremely careful with the use of nitrogen fertilizers, which in abundant quantities can cause serious damage to the crop or completely destroy it.
Before being used in a greenhouse, garden soil must be disinfected as thoroughly as possible to get rid of any pathogenic bacteria and microorganisms.
The fact is that they are the main source of diseases, which can affect the health of the plant and its taste properties. The soil for planting cucumbers in a closed atmosphere can be prepared independently or bought in specialized stores. The second option is more preferable, but if there is no proper amount of funds, you can prepare the soil on your own. To do this, you can use garden soil and add a little riding peat to it.
In addition, garden soil can be created from ordinary soil, humus and sawdust. The most effective and popular among summer residents is the seedling method of planting cucumber crops in polycarbonate greenhouses. The fact is that thanks to this it is possible to harvest much faster, especially in the winter season. On average, using this method, it is possible to collect cucumbers a month after planting.
The procedure for sowing and caring for cucumber in greenhouse conditions is as follows.
- you need to find small reusable containers, carry out a tangent disinfection and make sure that there are no harmful microorganisms;
- plant several seeds to a depth of more than 2 cm in moist soil;
- control the temperature in the greenhouse, which should be above 25 degrees Celsius;
- cover with a dense film until the emergence of seedlings, while not forgetting to ventilate the containers from time to time;
- leave the youngest shoot, and cut off the weakest.
In order for everything to go at the highest level and without any problems, it is necessary to constantly monitor the lighting. Ideally, crops should receive direct sunlight 12 hours a day. In addition, seedlings should be constantly watered with heated water. This is an extremely important point, since the use of cold water can completely destroy the future crop.
And now it's time to carry out preparatory work with seedlings. It should be ready for planting in the garden when the stem reaches 15 cm. It is at this moment that the true leaves appear on the bushes, and the roots are strong enough to be transplanted into the ground. Here you need to be extremely careful, because overgrown seedlings cope much worse with new conditions and usually do not survive even in a greenhouse.
Seeding methods
In order for the cucumbers planted in the greenhouse to give the required level of yield, it is not enough just to choose the right variety and correctly prepare. To do this, it is also necessary to provide the most suitable microclimate and choose the right landing pattern. It is thanks to her that you can get a high-quality and high yield of delicious fruits. It should be noted that the distance between the bushes for each variety is different, and this moment should be taken into account when choosing the most suitable cucumber species for your conditions.
Most people, wanting to get a huge harvest, plant seedlings tightly, but ripe fruits interfere with each other in the future and as a result cannot grow. In addition, tightly fitting leaves practically do not let the sun's rays through to the roots, which is why the fruits are bitter and small in size.It can also lead to high humidity, which often causes plants to develop fungal diseases.
In addition, due to excess moisture, cucumbers and flowers often rot. Closely planted vegetable crops also negatively affect their roots, which are not able to develop normally under such conditions. A distinctive feature of the root system of cucumbers is that it grows exclusively in a horizontal direction, and if there are certain obstacles in the way, growth stops completely.
The tangled roots begin to absorb a huge amount of moisture in order to somehow affect the situation, however, as a result of this, the soil quickly dries out and the plants begin to die. Another disadvantage of closely growing plants is that it is almost impossible to properly care for them. The summer resident must always check each leaf, control the formation of additional ones and ensure that diseased cucumbers do not appear.
However, it is almost impossible to do this in conditions when a huge number of fruits are planted in the garden. Some grow cucumbers in such conditions in order to collect pickles or gherkins, but this requires regular thinning of the leaves, which is almost impossible in conditions of the wrong choice of planting pattern.
In the process of choosing the most optimal scheme, one rule must be followed: the distance between the rows must be left so that they feel comfortable. Of course, in greenhouses, every centimeter of space usually counts, because the owner wants to get as much crop as possible from the space used.
If you rarely plant cucumbers, then this will not allow you to fully use the greenhouse area effectively. In other words, if this vegetable crop is planted far from each other, then the crop will not be able to boast of a large number of fruits and the minimum number of cucumbers will be collected from each square meter. In the process of choosing the most suitable distance between seedlings, the advice of the breeders who released this variety of product should be taken into account.
The fact is that the intervals between the rows are influenced by such factors as the size of the leaves, the size of the fruit itself, the length of the lashes and other features of the selected variety of cucumbers. If you are guided by universal principles and rules, then up to 6 seedlings of cucumbers per m2 can be planted on one bed.
Of course, cucumbers can be planted with seeds in the ground, but the most effective way to grow in a greenhouse is through seedlings. This is how you get the most harvest. Often seedlings are used in small peat containers, which boast strong roots. To do this, you just need to take small containers and cut them, and then plant the sprout in the hole.
Close attention must be paid to the characteristics of the variety used. The ideal option is to plant indoors only those options that are used for closed beds. If the greenhouse structure is used only in hot weather and is constantly open, then you can choose varieties that are pollinated by insects, otherwise it is better to choose other options. Regardless of the variety, all cucumbers want direct sunlight., therefore, this moment must be taken into account in the process of selecting a place for a greenhouse structure and planting cucumbers in the garden.
Experts advise placing the beds in a latitudinal direction, that is, from west to east. It is in such conditions that cucumber crops will receive the maximum amount of direct sunlight. A well-thought-out selection of the planting scheme makes it possible to obtain a high-quality and tasty harvest without any problems. The ideal option is to create narrow beds that allow you to easily approach any plant, tie it up, get rid of diseased leaves, or process crops. In addition, such beds are much more efficiently ventilated and receive more direct sunlight, and it is also easier to harvest the finished crop from them.
Thanks to narrow beds, in the presence of diseased leaves, they can be immediately noticed and the plant can be saved until it is completely destroyed. Such beds are extremely easy to treat with various pesticides and specialized chemical solutions if pests have settled on them.
Among the most popular landing patterns, one-line, two-line and chess patterns can be distinguished. A distinctive feature of the two-line version is that the sprouts are planted opposite each other. A detailed scheme is considered the best option for varieties that cannot boast of large leaves and fruits. The main advantage of this fit is that it greatly simplifies the process of removing mustaches and other necessary elements.
In the process of creating a bed based on a two-line scheme, it is necessary to control the height of the soil layer of 20 centimeters or more, and the width of the beds cannot be less than 80 cm. As for the distance between crops, they should be at least 40 cm. The second most popular and efficiency is considered a chess scheme, thanks to which the plants do not interfere with each other to receive direct sunlight.
The holes are made in such a way that they are not located opposite each other, but are in a checkerboard pattern. In other words, each previous plant leads the next one by half a step.
The chess pattern is considered an ideal solution for self-pollinating hybrid varieties, which are distinguished by fairly large leaves and fruits. The main advantage of this planting pattern is that vegetable crops receive the most direct sunlight, which has a direct impact on crop quantity and quality.
In addition, the use of this method allows you to rationally use every millimeter of space and thereby get a greater yield per square meter. A single row pattern can be used for certain hybrid varieties that cannot be planted in multiple rows.
A distinctive feature of such beds is that they are characterized by a minimum width and length. However, it is precisely thanks to such dimensions that it is possible to reduce the distance between cultures. The main disadvantage of a single-line cucumber planting scheme is that it does not allow you to save usable space in the room, since it is necessary to leave enough space between the beds so that you can move freely.
That is why this method of planting is resorted to only in the case of using hybrid varieties, which are characterized by increased productivity, and due to this they can compensate for other shortcomings. When planting seeds, it is best to make the holes wide enough to fit the seeds. If the seeds have already sprouted, then they must be planted deep into the spine.
Next to cucumbers, you can plant peppers, eggplants and zucchini, but in no case watermelons and other melons.
Care
To get the most abundant and tasty harvest, you need to pay close attention to caring for it. It is not enough just to plant a vegetable crop correctly, but it will also be necessary to provide the proper conditions for growth. For a good harvest, it is necessary to carry out constant watering, garter and other similar activities.
Careful attention should be paid to care in the spring, when cucumbers are extremely vulnerable, and any diseases can affect them. It is necessary to carry out their watering, top dressing and other activities in a timely manner.
Watering
In order for the cucumber harvest to be plentiful, it is necessary to provide the plant with constant access to moisture. Everything possible should be done to prevent overdrying of the soil, because because of this, the crop will not receive the nutrients and microelements it needs for growth.
In addition, it is necessary to ensure that waterlogging does not occur, as this can negatively affect the state of the vegetable crop. Irrigation should be carried out at a moderate pace, constantly monitoring the condition of the soil and the cucumbers themselves. Until the cucumbers begin to bloom, you need to strictly follow the instructions for watering and in no case allow an excess of moisture. Most summer residents recommend using about 5 liters of water per 1 square meter. Thanks to this, the plants will not be able to produce leaves too quickly, but the ovaries will become more active.
If the cucumbers are still growing a huge amount of leaves, then you can slow down the watering rate a little to slow down the rate of leaf production.
To do this, it is enough to skip watering once. Close attention to watering must be paid during the formation of the first ovaries, as well as during the fruiting period. If at the moment the cucumbers feel a lack of moisture, then the crop may be completely lost. That is why it is imperative to water the cucumbers from the moment they sprout until the end of fruiting every few days. With regard to the amount of water, it is best to be guided by the principle of about 10 liters of water per square meter.
The exact number depends on the weather outside: if it is too hot, then more water must be used and vice versa. As the plant bloomed, irrigation should be carried out every other day. However, even in such cases, it turns out that the cucumber leaves will begin to tie up. If this is observed, then it is necessary to immediately begin additional watering in order to provide the missing moisture to the plant. Under no circumstances should cold water be used for irrigation.
Warm water is the ideal solution. The fact is that the use of cool water can cause infection of the root system, which will lose its immunity to the effects of harmful microorganisms.
Also, in no case should you water the cucumber crop under the root, otherwise this can cause significant damage to the crop or reduce the quality of the fruit.If watering was done carelessly and the roots received too much moisture, then you need to immediately fill the soil from above.
So that after the onset of the growing season, vegetables can look attractive and are not prone to infection, you need to make sure that the soil is always dry. This method makes it possible to provide protection against root rot, which is considered a common problem in the process of planting cucumbers in greenhouse conditions. It should be borne in mind that if the weather is dry and hot enough, then in the greenhouse the air temperature can be extremely high, even with constant ventilation.
Professional summer residents advise spraying from the outside of the glass of the greenhouse with chalk diluted with water in a small concentration, which makes it possible to cope with high temperatures. This measure makes it possible to significantly reduce the temperature in the room, and also has a positive effect on the level of humidity in the greenhouse.
It is also important to remember that watering should be done only with warm water. The ideal option is considered if the water temperature is the same as the temperature of the soil itself. In this way, you can prevent damage to the root hairs, which in the future may cause damage to the crop. Most people do not know what time of day to water plants. There is no single answer to this question, however experts advise to irrigate in the morning or late in the evening.
If the temperature is too high outside, then sprinkling should also be done along with irrigation.
top dressing
In order for the crop to grow without problems and have an attractive appearance, it must be constantly given various trace elements and top dressing. It is worth remembering that at the very beginning of the growing season, this vegetable crop perfectly absorbs nitrogen, so it is necessary to use nitrogen fertilizers. After the lashes begin to grow, they cannot cope without a sufficient amount of potassium, so it is better to give preference to just such top dressing.
But after the shoots begin to appear, again there is a need to obtain nitrogen minerals. Cucumbers in the greenhouse experience the maximum nutritional, vitamin and microelement requirements during fruiting. It is extremely important to carry out in this case both root and foliar top dressing, using all types of fertilizers for this. Most summer residents make the same mistake when choosing between mineral and organic fertilizers, but the ideal solution is to use both options at the same time.
In order for cucumbers to be large in size, it is necessary to produce additional foliar top dressing with the help of specialized preparations, among which Zircon takes pride of place. In addition, on the modern market, you can find specialized fertilizers for cucumbers that are grown in greenhouse conditions. In the process of choosing a top dressing, it is imperative to take into account the variety of this vegetable crop, which affects the need to obtain certain trace elements.
Top dressing for cucumbers can be both natural and artificial. An excellent source of natural nutrition is herbal tea, water extract from mullein, or fertilizer from chicken manure.
If the budget allows, then it is better to use special fertilizers that are sold in specialized stores. They are more efficient and allow for a short period of time to provide the plant with all the necessary trace elements.
Bush formation
The formation of cucumbers includes the following procedures:
- tying;
- getting rid of unnecessary sheets;
- topping;
- getting rid of side shoots.
To correctly form a bush, you need to pay attention to the variety of vegetable. To date, there are unique hybrid varieties on the market that do not need to form a bush. For such plants, it is important to remove the lower leaves that touch the ground, and other work can be omitted.
In addition, you can use climbing cucumbers that spread too many lashes. Pinching also plays an important role in the formation of the bush. If it is not produced correctly, then this can cause the sterility of the bush.
Diseases and pests
If cucumbers do not grow well or do not bloom, then they may have been affected by a certain disease or pest. Fighting it is an integral part of growing any crop, including cucumbers.
One of the most common pests is the spider mite, which is considered the most dangerous pest. The main sign of the appearance of such a pest is the presence of a thin cobweb and small punctures, which lead to the yellowness of the leaves or their complete drying. You can deal with such a pest in the following ways:
- maintaining the soil in the required condition;
- disposal of debris or plant residues;
- disposal of sulfur briquettes.
Among the most common diseases are the following.
- Gray rot. You can detect this disease by gray spots, and some fluffy coating appears on the fruits. You can cope with this disease with the help of ash. In addition, the ideal solution is to constantly air the plants. If the disease begins to develop, then you need to instantly get rid of the affected parts.
- Powdery mildew. Appears on stems and looks like a white spot. The affected parts can also be covered with ashes or sprayed with a mullein solution.
- Regular mosaic. A distinctive feature of this disease is that dark green spots appear on the leaves of cucumbers. The infection can propagate through weeds or by using infected seeds. That is why for this process it is recommended to use exclusively treated seeds for planting. Any diseased plant should be destroyed immediately.
It should be noted that growing cucumbers in greenhouse conditions requires careful removal of weeds over the entire area. In addition, it is necessary to constantly take special measures, among which is the installation of glue traps. To attract dangerous insects, rectangles are used, painted in bright colors and pre-lubricated with rosin. Vaseline or castor oil can also be added to the composition, which attracts almost any insect.
To prevent and protect against a number of diseases and pests, you can spray water on the plant. This method is especially effective when washing the lower parts of the sheets.
Another pest is the whitefly, which also feeds on cucumber juices and can cause serious damage to the fruit. A great way to get rid of the problem is to plant tobacco nearby that attracts whiteflies.
Among the diseases that affect cucumber crops, gray and white rot can be noted. These fungal diseases develop due to a large amount of moisture in the room or due to too close planting. It is much easier to carry out prevention and prevent the occurrence of these diseases than to cure cucumber crops from them.
Thus, growing cucumbers in a polycarbonate greenhouse is a complex process that must be approached with all responsibility. Processing should be carried out in a timely manner, and only proven seeds that are not infected with infections should be sown, so there will be no problems with them in the future. Only by strictly following all the procedures and subtleties, you can get a high-quality and tasty crop of cucumbers.
For information on how to grow cucumbers in a greenhouse, see the following video.