How to grow radishes in early spring in a greenhouse. What varieties of radishes do I grow in the greenhouse in spring? Caring for radish crops

The radish came to Europe a long time ago, but in Russia it began to be cultivated at the beginning of the last century. In early spring, the vegetable is present on our tables and allows the body, weakened after winter, to receive all the necessary vitamins. Today we will tell you when you can start sowing radishes in your greenhouse and how to grow a crop yourself, taking into account all its features.

Radish is an annual crop. Experts attribute it to the cabbage family. When cultivating such a vegetable in your own greenhouse, you should provide it with a sufficient amount of light and heat. Planting radishes in the spring is carried out at a time when daylight hours begin to increase. If there is a desire to grow such a tasty and healthy vegetable in winter in a greenhouse, you will need to create good system additional lighting. Culture tends to endure frosts, but not more than -3 degrees.

The optimal temperature for its cultivation, as the practice of many vegetable growers in our country shows, is an indicator of 18 - 20 degrees Celsius. You also need to choose the right soil for planting. Radishes are rich in easily digestible vitamin C, essential oils(useful for digestive system). The juice of the plant, rich in potassium, is recommended for those who have problems with the functioning of the kidneys and heart. In the presence of any colds in winter, a home-made vitamin and proven mixture made on the basis of radish juice, onion and pepper is effective.

In the spring, radishes are sown in a couple of stages, traditionally starting in April (under the film), ending in August. The next batch can be sown when the first seedlings grow full leaves. So that the harvest can ripen at the same time, experienced gardeners practice growing a vegetable with an interval of up to 2 weeks. The soil for sowing seeds must be sufficiently moist. Dry seeds should be placed in the soil to a depth of no more than 2 cm. The fact is also taken into account that in early varieties the growing season lasts from 20 to 25 days, and in later varieties - from 40 to 45 days. In some regions of our country, sowing radishes in open ground carried out in March.

And when is it permissible to sow radishes in a polycarbonate greenhouse? Such a modern greenhouse accumulates heat well inside, since it has a coating consisting of thick sheets.

In a greenhouse, air and soil warm up faster than in glass structures. Therefore, it is permissible to plant radishes in a polycarbonate greenhouse earlier.

Many gardeners are interested in when it is possible to start planting radishes in their greenhouse, taking into account the ripening dates of individual varieties? Early ripe varieties it is advised to plant in the spring from March 20 to April 10, mid-season - from July 25 to August 10, late - from August 10 to the end of October.

How to plant in a greenhouse

It is best to plant radishes in soil with a neutral level of acidity. It has been prepared since autumn. To do this, digging the site is carried out and fertilizers are applied. It will take about 40 grams of superphosphate and 15 grams of potassium chloride per each square meter. Full-fledged root crops grow on the ground, to which 1.5 buckets of compost have been added per square meter. The width of the beds is normally about 1 meter. When the sun begins to warm the ground on spring days, you can plan the day of planting the crop. For growing in middle lane it is advised to choose such varieties of your favorite vegetable as Heat, Early variety, Saksa, Zarya.

If a good heating system is created in the greenhouse, then it is realistic to harvest radishes all year round. After the last frosts, the remaining snow is removed from the greenhouse, the frame is repaired if necessary and covered with foil. Planting begins when the soil becomes soft and warmed up by at least 3 cm. Seeds are laid out in prepared grooves at equal distances. The optimum seeding depth is up to 1.5 cm.

You can sow the seeds by hand, use a seeder, or sow in a band way. Seeds are usually sown manually if the garden has an area of ​​\u200b\u200bno more than 10 square meters. Dry or soaked seeds are taken individually and placed in the furrow. The distance of their placement is, depending on the variety, 4 - 10 cm. After falling asleep with earth, it should be compacted using a wide board or roller. Sometimes the distance between the seeds is measured, take a simple matchbox. When sowing is carried out, it is required to water the plantings abundantly. Avoid overwatering the beds. If you own a plot that is larger than 10 square meters, you can use a mechanical hand seeder.

Today, single-row, double-row and belt planters are on sale. It is necessary to take only dry seeds. The seed drill can be adjusted for depth and seeding rate. The planter will have to be readjusted if, after checking the depth and uniformity indicators, you find deviations from the norm. Having a small practical experience, really carry out sowing for a short time on the large area. For sowing with ribbons, special strips of paper are used, having a width of about 0.5 and a length of up to 2.5 meters. Seeds are glued on every 5 cm. It is required to prepare a paste yourself, consisting of water and starch. Finished tapes are laid on the bottom of the grooves.

Proper greenhouse cultivation

It is important to maintain a normal level of soil moisture and the right temperature regime. The latter indicator changes repeatedly over the entire growing season of radish. For example, during the first 2 - 3 days from the moment of landing, the temperature should be 15 - 18 degrees Celsius. When the first shoots are visible, it is required to reduce it to 8 - 10. When the tops grow, the culture requires a temperature of 15 - 20 degrees Celsius for full development. Under such conditions, you can count on the normal formation of root crops. It also needs daily watering. After germination, you can water the beds 1 time every couple of days.

After each procedure, it is imperative to ventilate the greenhouse. This will serve as a preventive measure for the development of fungal infections in the culture. Ventilation is also important if the temperature rises above + 20 - 22 degrees. For radishes, daylight hours lasting 12 hours are extremely important. In winter, you need to create additional lighting. Top dressing is applied to the soil only if the land is depleted due to the cultivation of early vegetables on it. To keep your radishes free from fungal infections, spray them with a solution of ash and soap. It can be easily made at home using 1 cup of ash and about 50 grams of soap per 10 liters of water.

When cultivating radish in a modern greenhouse, it is necessary to take into account some of the nuances that directly affect its yield. This wonderful vegetable prefers open space. Shadows are not allowed. If the planting is carried out too densely, the plant is able to grow more slowly than it should. Do not forget to thin out the crops in a timely manner if it was not possible to sow them sparsely.

To get good root system, culture requires constant abundant watering and periodic loosening. The frequency of watering is 1 time in 2 - 3 days. At the same time, on hot days, it is best to water the plants daily. Water consumption, which should be guided by, is from 6 to 8 liters per square meter of area.

Learn about the deficit useful substances in the soil it is possible by changing the usual saturated green color of the leaves to pale green. You can feed a plant whose growth has slowed down with a solution of urea at the rate of 1 teaspoon of the product and 1 glass cow dung for 1 bucket of water. The consumption of such organic fertilizer, made by hand, is usually about 5 liters per square meter.

If you plant spinach on neighboring beds, you can provide radishes reliable protection from the possible presence of pests. For planting radishes, it is recommended to choose the site on which they previously grew. vegetable crops. Only cruciferous are considered bad predecessors.

Video “Planting a radish in a greenhouse”

From this video you will learn how to properly plant radishes in a greenhouse and practical tips by landing.

Radish is one of the most beloved on the domestic market, and if we also take into account the possibility of growing it all year round, then there is no price for the plant at all. True, in order to get juicy and tasty root crops at any time of the year, you should take care of suitable conditions for their growth and development.

This can be helped by a properly designed polycarbonate greenhouse, and we will now tell you about the nuances of its use for radish cultivation.

A more reliable structure than a film shelter, and it can be used even in winter.

However, if you want to grow radishes all year round, then you will have to take into account some requirements for such a place of its growth.
First of all, they include:

• good stability of the structure, which must be taken care of even at the stage of designing the greenhouse;
• the presence of a ventilation system that will prevent the formation high humidity after watering;
• the presence of a heating system, especially if you are going to use the facility during the cold season (it can be propane or electric: the choice depends on the size of the greenhouse, the cost of electricity, the equipment itself, etc.);
• properly selected cassette material, which should not emit harmful substances when interacting with other solutions used (if a cassette method of growing radish is provided);

Important! The optimal solution the use of cassettes with a size of 40x40, in which 64 cells are provided, or containers of 35x36 with 49 cells, is considered.

• high quality substrate in the greenhouse (the soil must be quite loose, fertile and well-drained, and if desired, you can use a ready-made soil mixture intended for growing basic crops);
• organization of an irrigation system, which, in the case of growing root crops in cassettes, must be carried out by flooding.

A properly prepared polycarbonate shelter has a number of advantages over alternatives greenhouses for growing radishes are:

• reliable, stable, streamlined frame;
• durability of the structure;
• resistance to snowfalls and frosts (up to severe frosts);
• aesthetic appearance.

In addition, when compared with more serious greenhouses organized in industrial premises, then the polycarbonate option will cost much less, and the result will be almost the same.

Varieties

Before choosing a radish variety to plant in your greenhouse, decide how long you plan to grow it. Most often, when constructing a polycarbonate greenhouse with all systems, its owner is counting on year-round cultivation of plants, so if you have similar plans, then when choosing seeds, you should pay attention to early and early-ripening varieties for growing indoors.

From early ripening varieties, you can expect a harvest 20 days after planting, mid-season radishes will be ready for harvest in about a month, and late varieties will please the harvest only after 40 days.

If desired, you can combine varieties in one greenhouse different term ripening, which is even more preferable, since the radish crop will be ready for harvest all the time.

Among the greenhouse early-ripening radishes, with the highest marks of specialists, the following early-ripening varieties can be distinguished:

• "Ultra Early Red". Very attractive red radish, round in shape, with excellent palatability and weighing up to 15 g. In addition to the root crops themselves, their green part is also used for food, which is great for making soups and fresh salads. Ripening period 20 days.

• - a hybrid, juicy and slightly spicy variety, characterized by very early ripening: the crop can be harvested as early as 16 days after planting.

• . Elongated, cylindrical root crop, with a mild, not spicy taste. As the name suggests, 18 days is enough for full maturation.

• . Another hybrid early ripe variety, which will delight you with juicy, sweet and large fruits(up to 35 g each), as early as 16-18 days after planting in the greenhouse. It is highly resistant to cracking and gives a bountiful harvest: up to 3.5 kg of root crops can be harvested from 1 m².

Did you know? The radish came to Russia thanks to Peter I, who brought it to the territory of the state in the 17th century. According to historical data, he considered this bright root crop to be just a miraculous plant that could warm the heart and give strength. True, at that time, many did not share the views of the king, so the real popularity came to radishes only in the 18th century.

Popular early varieties greenhouse radish represented by the following varieties:

• . It is characterized by high resistance to shooting and high productivity.

• . Cylindrical fruits with high palatability, which can be grown both in the greenhouse and in the garden. Maturing term - 22-27 days.

• . The classic representative of radishes: a pink-red root crop with a smooth surface and a weight of 25-30 g each. You can harvest a juicy and tasty crop 18-25 days after planting. Feels good like greenhouse conditions as well as in open ground.

• - Dutch, hybrid, greenhouse variety radish, characterized by good yield and excellent taste. The plant is unpretentious in cultivation and care.

Of course, these are far from all possible varieties suitable for growing in polycarbonate greenhouses, but in any case, when choosing seed material it is very important to take into account its regionalization and composition requirements, which is usually indicated by the manufacturer on the packaging.

Before sowing radishes in a greenhouse, it is very important to properly prepare the substrate, which has been done since autumn. It is no secret that for a plentiful harvest, the soil must be sufficiently nutritious, therefore, it is added in the form (40 g per 1 m²) and potassium chloride (15 g per 1 m²).

In addition, it should be characterized by neutral acidity, since the plant often gets sick on acidic soils.

If necessary (if the land is very depleted by previous crops), you can additionally fertilize it with organic matter, adding a bucket of compost per square meter of territory. After that, the soil should be dug up, leveled and left for a while, in order to organize ridges a little later and plant radishes.

The second, no less important issue before planting radishes in a greenhouse is the preparation of selected seeds.. All of them should be quite large (about 3.5 mm) and completely healthy. To select the highest quality specimens, you will have to perform the usual home sorting, sifting all the seed through a sieve with 2 mm cells.
Those that remain in it can be safely used for planting, having soaked for several days before that (just wrap it in wet gauze, keeping it moist all the indicated time).

Seeds ready for planting should have several sprouts, and as soon as they appear, they are washed and dipped for several hours in a growth stimulator solution. After that all planting material rinse again and leave to dry completely on a cloth. Everything, you can plant radishes in the place allotted for it in the greenhouse.

Did you know? To make the holes prepared for seeds as accurate as possible, you can use a paper tray from under the eggs as a marker, squeezing out dots on the surface of the earth. That is, to get the ideally correct "houses" for each seed, you do not need to suffer for a long time with manual marking.

If your polycarbonate greenhouse is equipped with a good heating system, then you can grow radishes all year round, sowing them at any time. However the best option it is considered spring period(March-April), especially if you grow a root crop for yourself.

With the arrival of the first heat and an increase in daylight hours, you do not have to spend a lot of money on heating and lighting the building, which makes growing a plant even more profitable.

The process of planting radishes begins with loosening the soil and organizing suitable beds, for which, with the help of a cord, you can mark grooves located at a distance of 7-10 cm from each other, and make centimeter deepenings in each of them (a thin plank will help with this).
In the resulting grooves, the seeds are placed at a distance of 1-2 cm from each other, then sprinkling them with light soil. Immediately after planting, plantings are watered from a sprayer and left to grow, creating all the conditions necessary for this: temperature and light.

So that the seedlings feel good, the temperature during their planting should be within + 10 ... + 12 ° C, and then rise to + 16 ... + 18 ° C ( perfect option for their growth). As soon as the first cotyledon leaves appear, the temperature indicators are immediately lowered to + 8 ... + 10 ° C and maintained at this level for for three days.

As for lighting, here the ideal indicators would be values ​​​​of 1200-1300 lux, with a daylight hours of 12 hours. in winter or in early spring landing in without fail must be illuminated with LED or fluorescent lamps.
Similar conditions must be met when growing radishes in cassettes, and the difference lies only in more convenient way planting (nothing needs to be marked, just pour the prepared soil mixture into small holes and place the root seeds in it).

Important! Maintaining lighting for more than 12 hours in a row is not worth it, since the radish may well shoot arrows.

Care

To receive good result in the form of a bountiful harvest, it is simply unacceptable to ignore the requirements for caring for radishes planted in a greenhouse. As in the cultivation of others horticultural crops, there are several main aspects in this matter:

• . Radish grows well only in a moist substrate, so the soil should not be allowed to dry out. The result of this omission will be a significant loss of yield. With the cassette method of cultivation, watering should be carried out only from below, through special drainage holes, moistening the substrate up to 10-15 cm. In order for moisture to evaporate less, the soil is sprinkled or with humus.

• Humidity . The radish does not like high humidity, since in this case the risk of developing typical diseases increases several times (the most common is the “black leg”). To exclude the possible manifestation of the disease, it is very desirable to ventilate the greenhouse after each watering.

• top dressing . Fertilization of planted plants is carried out mainly when in the autumn (before planting) not enough nutrients. Additionally, you can enrich the substrate with superphosphate diluted in water, or nitrogen fertilization will also be useful. The latter is introduced based on the calculation of 20-30 g per 1 square meter of territory.

• Weeding and thinning . A few days after planting the radish, it will already need to be thinned out, otherwise, instead of growing root crops, you will observe an increase in the green mass of plants. In the future, you will need a few more weeding and obligatory loosening of the soil.

• Disease prevention . To avoid the appearance and development of the most common radish ailments, preventive treatments should not be ruled out. Alternatively, you can spray young plants with a solution wood ash and laundry soap in a ratio of 2:1. Thus, you can protect your radish from the already mentioned “black leg”, additionally scaring away cabbage moths and caterpillars from it.

• Wintering . If there is a heating system in the greenhouse, wintering should not be a problem, because for plants that are warm, there is no difference what is happening on the street. However, when using this facility only in the relatively warm season and without heating, you will have to take care of additional shelter sprouts in early spring and late autumn(usually polyethylene is stretched over the beds).

Simply put, with relatively little effort, you will get good harvest delicious and healthy homemade radishes, completely ready to be harvested.

Collection and storage

You can start harvesting 30-45 days after planting the crop, when the radish grows to two centimeters or a little more. It is not worth delaying with this, since the plant can go into the arrow and become overly rigid, unsuitable for food purposes. Write in the comments what questions you did not receive an answer to, we will definitely respond!

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Delicious, slightly spicy radishes are popular throughout the year. With the right approach, a radish growing business can bring good profits. It is especially profitable to sell a vegetable in winter, during a period of limited supply. To get a good harvest, it is necessary to create conditions in the greenhouse that are as close to natural as possible.

For the greenhouse, you need to choose varieties that have good resistance to external influences. A significant factor is the length of the growing season.

Table of radish varieties

By alternating planting seeds, you can harvest throughout the year.

Not all seeds need to be processed before planting. On the shelves of stores there are seeds that are completely ready for planting.

Types of seeds

1. Hybrid - treated with drugs that protect against diseases and pests. Hybrid seeds can be sown dry.
2. Varietal - collected independently or purchased from neighbors (sellers in the markets) seeds. May be infected with fungi or viral diseases and therefore need to be processed.
3. Inlaid - seeds in a protective shell. The shell consists of growth stimulants. Do not need processing.
4. Dragee - coated with peat-mineral mixture. The mixture provides protection and nourishment. It is not necessary to process pelleted seeds.

The purpose of the treatment is to decontaminate and further stimulate growth. One of traditional methods- soaking in a weak solution of potassium permanganate.

Also, disinfection can be carried out using the immunocytophyte preparation (one tablet per 100 ml of water). Processing time - from one to 12 hours.

The following substances are used as growth stimulants:

After soaking, the seeds should be scattered on a paper sheet to dry.

Soil mixtures

It is necessary to prepare the soil in advance, since autumn. After harvesting, it is necessary to remove the remains of plants and dig up the ground, add humus.

There are several options for preparing soil mixtures. For radishes, the following ratios are optimal:

• 40% field land plus 60% manure humus;
• 20% lowland peat plus 40% manure plus 40% sod land;
• 60% manure humus plus 40% sod land;
• 50% sod land plus 50% greenhouse land.

Planting a radish

To receive early harvest radishes can be planted from mid-January. The optimal temperature regime for radishes is from 0 (at night) to +15 degrees (during the day).

After a few days, you need to remove the film, dig up the soil and mix it with mineral fertilizers. The planting depth of radishes is 2 cm, the distance between seeds is 2-3 cm, the distance between rows is 8-10 cm. Uniform planting of seeds eliminates the need for thinning. After planting, the land is covered with polyethylene for several days so that the seeds can acclimatize.

1. Choose the right variety of radish. Seeds intended for planting in the ground can shoot in greenhouse conditions.
2. In no case should you sow the seeds too thickly in the greenhouse. Even thinning may not save from such an error.
3. Be sure to use humus or compost for additional seed nutrition.

The optimal distance between rows is the width of the palm.

Care

Radishes are very hardy. The gardener will need to carry out only a few manipulations in order to reap a rich harvest. After the seedlings emerge, the radishes should be thinned out. If the small sprouts grow too close together, the radishes can turn out small and tasteless. Thinning also helps prevent arrowheads from appearing.

As an additional food, you can use peat, nitrogen fertilizers, humus. Helps protect future crops from pests folk remedy: mixture of tobacco dust and ash. Mandatory steps care are weeding, loosening the soil, airing.

If the temperature outside the window has dropped below normal, protect the seedlings with additional arcs placed inside the greenhouse and covered with polyethylene. Instead of polyethylene, a dense non-woven material can be used.

Greenhouse heating methods

1. Biological- laying half-rotted manure on the bed. A 20-cm layer of earth is poured over the top of the manure.
2. Electric— use of a special heating cable. A protective mesh is laid on the ground layer, then a cable, then another mesh, a 5-cm layer of sand and 15-20 cm of fertile soil.

   

3. Water heating- pipes are connected to the boiler, forming a closed heating system.

   

4. Furnace- attached to the oven horizontal pipes passing throughout the greenhouse. Installed at the end of the system vertical pipe. The smoke comes out through this pipe.

   

5. Electric convectors, infrared heaters, radiators. They are installed around the perimeter or on both sides of the beds and are turned on as needed.

   

Harvest

The growing season of greenhouse and ground radish is somewhat different: the greenhouse vegetable ripens later. On average, you can get a crop 2 months after sowing. The process is also affected by the variety of the root crop, the level of lighting and temperature conditions. Gardeners do not recommend delaying harvesting: you need to harvest radishes when they reach medium size, become juicy and acquire a color characteristic of the variety.

Tip: Water the plants a few hours before harvest. The optimal combination: watering in the morning and cleaning in the afternoon.

The harvested crop needs processing. If you do not plan to sell the vegetable immediately, along with the tops, trim the leaves. Then rinse the radish cold water and dry slightly. Root vegetables can be stored in the refrigerator for 3-4 weeks.

There is a technique that allows you to store vegetables for a long time. Radishes fit into wooden boxes, the bottom of which is covered with polyethylene. Vegetables are sprinkled with a mixture of peat and sand. Sand-peat mixture protects root crops from rotting.

A few tips for aspiring entrepreneurs

1. How more land, the more radishes. Gradually increase production.
2. To ensure the availability of production, plant seeds every 1.5-2 weeks.
3. Bet on quality: choose varieties that produce delicious fruits.
4. Work on holidays.
5. In the fall, you can go on vacation so as not to sell radishes at dumping prices.
6. The greatest demand for radishes will be in winter and summer.
7. Grow classic varieties. Add exotic little by little, on trial.

Growing radishes is a business that you can really start from scratch. Products collected on own site, is not taxable. Start with small sales, and if it works, register as an individual entrepreneur. In this case, you will be able not only to sell root crops on your own, but also to supply products to stores and to the market. Be sure to indicate the scope of activity during registration: agricultural production. Producers of agricultural products enjoy the support of the state.

Video - Growing radishes in a winter greenhouse

Radish is a juicy and very healthy root vegetable that gives dishes a special, piquant taste. It is rich in micro and macro elements, fatty acid, glycosides, and also easy and not whimsical to care for. Therefore, growing radishes in a greenhouse can be done even by a novice gardener, the main thing is to choose the right variety and growing method.

It is really not necessary to have high agronomic knowledge to grow radishes. It is enough to pay attention to the biology of this root crop, its physiological and ecological features.

Radish is an annual photophilous plant from the cabbage class. As you know, almost all cabbage plants are heat-loving plants. Therefore, to form a full-fledged crop, he simply needs a sufficient amount of heat and light. It is interesting that, despite the thermophilicity, radish perfectly withstands temperatures down to -3 degrees Celsius.

For proper care of radishes, it is important to ensure that the temperature is still in the range of eighteen to twenty degrees Celsius, otherwise various anomalies may develop.

Growing radishes in a greenhouse requires attention to the soil on which the vegetable grows. Currently, there are even selective soils to inhibit the development of fungal or bacterial pathogens. If you do not have the opportunity to purchase such soil, just remember: radishes grown on acidic soil can become infected with clubroot. The growth of radishes in a greenhouse with potassium deficiency is complicated, it is extremely slow, almost no root crops are formed. The same thing happens with nitrogen deficiency.

In general, when correct selection care products, this vegetable can grow in the month of February, despite frosts. Under such conditions, radish grows best and bears fruit in a polycarbonate greenhouse.

In order for the radish to grow quickly and give a good harvest, it is necessary to properly care for the seedlings. For a quality crop Special attention should be directed to the ground. It should not be forgotten that, unlike natural soil, many biological and physical processes that will have to be compensated. Growing radishes in a greenhouse requires a soil that is neutral in composition. For leaching acidic soil recommend adding horse dung at the rate of one and a half buckets per square meter of land.

In order to avoid harmful microorganisms, before laying in greenhouses, the soil must be sterilized - this is done under the influence high temperature or pressure. In rare cases, you can resort to an autoclave. But still, the most popular method is either the fumigation of the soil and the premises with compounds of substances toxic to pests, or the roasting of the soil.

Be sure to add fertilizer. It is noted that the weak link in the mineral nutrition of radish is phosphorus and potassium. In order to avoid crop loss, superphosphate is added at the rate of forty grams per square meter of soil, as well as potassium chloride - fifteen grams per square meter. The addition of these fertilizers will improve the growth and productivity of root crops. Do not forget about controlling the amount of nitrogen and potassium, without which the normal formation of the crop is impossible.

Preparing seeds for planting

Choice the right material- the lion's share of success in the agricultural business. For planting, it is best to use large (up to three and a half millimeters in length) seeds. At home, it is not difficult to select seeds - pass the seeds through a sieve with large cells.

There are separately bred varieties of radish seeds for planting in greenhouses. This is due to the fact that growing radishes in a greenhouse has its own physiological characteristics that can play into the hands of gardeners.

Right before planting the seeds in the ground, they must be left in the water for several days, maintaining room temperature. This is best done in a thermostat on layers of gauze. After this procedure, it is recommended to treat the seeds with a solution of fungicides, or a weak dilution of potassium permanganate. After that, the dried seeds are planted in the ground.

disembarkation

It is best to plant radishes in a polycarbonate greenhouse. Usually, the entire landing procedure is done manually. The distance between seeds usually varies from one to two centimeters, between rows - from six to eight centimeters. Do not immerse the seeds too deep in the kidney - it is more than enough to lower it one centimeter. Before planting, it is recommended to carry out a drip irrigation system.

Compliance with at least these minimum requirements exhaustive answer the question: how to grow radishes in a greenhouse.

seedling care

In general, it is necessary to control several parameters - air temperature, illumination, humidity, pest contamination and mineral nutrition seedlings.

Thanks to the subtleties of greenhouse maintenance, we can change the temperature during the entire growing season of the plant. During seed germination, the temperature should be low from two to four degrees to sixteen. After the seedlings began to sprout en masse, the temperature is slightly lowered, to six degrees. After four days in this mode, the temperature is again raised to the original values.

Of course, there are difficulties if your greenhouse is unheated. In this case, it is possible to lower the temperature mechanically without resorting to heating system. An unheated greenhouse can be compensated by the use of special materials in its manufacture. So, a radish that grows in a polycarbonate greenhouse does not feel critical temperature fluctuations, and generally gives a rich harvest.

How much should seedlings be watered? This question is asked by many gardeners. With a lack of moisture, the roots come out dry and insipid, with an overabundance of moisture, plants can suffer from root rot or a black leg of seedlings.

Therefore, the watering of the radishes that you grow in the greenhouse must be compensated. Do not let the soil dry out completely. It is best to supply water from below, to a depth of ten to fifteen centimeters.

The nuances of early planting radishes

Early planting radishes in the greenhouse, we face certain difficulties. In greenhouses that are not heated, or they are made of poorly heat-retaining materials, they stand without a foundation until the soil warms up, otherwise you risk losing the entire crop. Seedlings can be planted in polycarbonate greenhouses as early as February.

The question may arise: how to grow a radish in February, when it is still frosty outside? To do this, the soil must be moistened warm water, the beds were hilled in a timely manner, and even without top dressing on such early dates, of course, is indispensable. Loose soil, no pests and proper care will help you to feast on your own hand-grown radishes all year round.

The best varieties of radish for greenhouses

The best radishes in the greenhouse are Greenhouse Radishes, Eighteen Days, Early Red, and French Breakfast. These varieties are characterized by resistance, productivity, high germination and short maturity. So, when choosing from countless varieties of radishes, pay attention to the following for planting in a greenhouse.

Planting radishes in a polycarbonate greenhouse can be of several types:

• year-round in heated greenhouses;
• from the beginning of February to the end of April for spring and summer use;
• at the beginning of September for the autumn-winter season.

There are several planting techniques that allow you to reduce the time between the stages of harvesting the next wave of crops. Thanks to them, you can serve fresh radishes to the table almost continuously during the growing season.

What kind of radish is best to plant in a greenhouse

For growing in greenhouses, special varieties are created, which, unlike the usual ones, are capable of not letting arrows with seeds in low light conditions. However, when growing, it is better to use active lighting to provide 10-12 hours of daylight. Such varieties include Early Red, Dawn, Varta, Globus, Krasa, Saxa and others.

When choosing when buying which radish is better to plant in a greenhouse, pay attention to a number of properties:

1. Shelf life. Expired seeds will not provide a good harvest.
2. The size. For planting, it is better to use seeds with a diameter of 3 mm or more.
3. Maturing period. According to the duration of the vegetative period, early-ripening (18-25 days), early (25-30 days), mid-ripening (30-40 days) and late (more than 40 days) radishes are distinguished.

For 1 m2 of beds, about 5 g of seeds will be required. You can plant several varieties of different ripening periods at once, and new portions of the crop will almost constantly ripen in turn in your garden.

When to plant radishes in a greenhouse

In heated polycarbonate greenhouses, radishes can be planted 24 hours a day, planting new seeds between rows after harvest or mid-season for 10-15 crops per season.

Spring planting is carried out from the beginning of February to the end of April. It can be planted in unheated greenhouses if the soil has become soft to a depth of 3-5 cm. Usually this is the second half of March or the first half of April. The timing of the first harvest will depend on temperature and daylight hours:

• planting radishes in a greenhouse in February will require fruits to ripen for 1.5 months;
• planting radishes in a greenhouse in March will produce a crop in about 35 days;
• planting radishes in a greenhouse in April will speed up ripening, the crop can be harvested in less than a month.

In early September, radishes are planted for autumn, and in heated greenhouses for the entire autumn-winter period.

How to prepare and plant radish seeds

If the seeds are not the same in size, then the largest ones are selected, sifting the fines through a sieve with holes of 2.5-3 mm. In the absence of a sieve, you can place the seeds in a salt solution (dissolve 1 teaspoon in 250 ml of water) and select only those that have sunk to the bottom.

To speed up the emergence of seedlings, the seeds are washed with a weak solution of potassium permanganate. Can be immersed in hot (50°) water for 20 minutes to prevent dry rot. Then the seeds are left on a damp cloth until the sprouts peck.

Seeds are usually sown in meter-wide beds. Shallow grooves are made, located in 7 cm increments. The seeds are placed in them at a distance of 1.5-2 cm, so as not to thin out later, and sprinkled with a 1 cm layer of soil.