Strawberries in hydroponics: description, pros and cons of the growing method
Even with the successful cultivation of strawberries, its remontant varieties are able to produce several crops per season. But autumn comes, and the vital activity of culture freezes until the next season. The life cycle of the plant resumes in the spring, and only after some time, depending on whether the berry is early or late, you can wait for the harvest. In hydroponics, fruiting can be year-round without loss of crop quality. Let's take a look at what this technology is.
Features of the technique
The hydroponic method of cultivation in our country has been practiced relatively recently, but every year it has many adherents, because it allows you to get large yields, minimizing the cost of maintaining the culture.
The principle of this cultivation method is that strawberries grow without the usual soil, receiving the necessary nutrition from a specially prepared solution. That is, the roots of the plant are not located in the ground, but in a certain medium that has a porous structure that is able to absorb liquid and pass air well. Such an artificial substrate is at the same time a support for the root system and the plant itself.
The main materials for it are:
- expanded clay pellets, best if they are irregular in shape;
- gravel, crushed stone with a fraction size of 2 to 5 mm;
- crumb of sphagnum peat, which has an average level of decomposition;
- coconut fiber (bast);
- Mineral wool is an inexpensive lightweight material that also contains some zinc, iron and copper, which can be absorbed by the roots of the crop.
Through a mixture prepared from these components, nutrition must be supplied to the plant. Usually it is carried out with the use of flooding at certain periods through drip irrigation by creating artificial fog, as well as lowering the root system into the nutrient fluid completely. The latter method is rarely used for remontant varieties, as it can lead to rotting of strawberry roots.
Most gardeners have come to the conclusion that at home it is more convenient to grow a berry on a high-quality nutrient layer, when the solution circulates at the bottom of the hydroponic substrate - this is how the roots, gradually growing, reach the necessary substances and provide the plant with them.
It is quite possible to make and install such equipment for growing with your own hands, creating a favorable climate for plants in the room.
Pros and cons
Having some understanding of this method of cultivation, one must understand that a properly prepared nutrient mixture is of great importance, as well as the creation of special climatic conditions for abundant fruiting.
However, it is immediately worth considering all the positive and negative aspects of this technology and system.
Main advantages:
- first of all, for the growth, flowering and fruiting of a plant, a minimum supply of water is needed, which evaporates by the plant, so it does not go anywhere;
- the plant can give all its strength to fruiting, so it does not need to extract nutrients from the soil;
- weeding, loosening and mulching in this case are absent;
- since weeds cannot be a priori with such a system, it is not necessary to spend money on herbicides;
- strawberries grown in this way are more viable than those planted in the beds;
- in its own way, the use of fertilizers is economical - in the natural environment, most of them go into the soil, in connection with this, it is possible to regulate the amount of mineral additives.
As a result of all these benefits, the yield also increases. Hydroponic strawberries are healthy, strong plants that produce many quality, delicious fruits. Harvesting also has a certain convenience, when you do not need to bend down for a berry - the system is installed on a hill.
Of course, this technology also has its drawbacks.
- Unlike natural soil, which can change its acid and alkali content over time, artificially created soil does not have such properties, and any mistake in its preparation can cause the appearance of pathogens. For example, algae and microorganisms very often settle on mineral wool, so watering is important so that salts do not settle on its surface, and at the same time draining water up to 25%.
- But also an important factor and at the same time a disadvantage is constant control over the temperature - it must be kept stably warm in the root zone, an increase in indicators can provoke their death. Perhaps, the gardener does not face such a problem in natural conditions.
A significant disadvantage is that the installation of equipment by professionals is not cheap, which is why many gardeners try to mount the system themselves.But for this you need to really understand the subject well, and it will be difficult for amateurs to get a good result without outside help. In addition, hydroponics requires daily electricity costs.
Installing a horizontal system
A person who is more or less versed in technology can create a hydroponic garden in an apartment or house, experts advise using a drip irrigation system for this.
Culture can be grown both horizontally and vertically - it all depends on the area and height of the room.
The arrangement of the horizontal system occurs as follows:
- large-sized PVC pipes with a circular cross section are taken and installed on wooden racks one above the other;
- holes are cut on them for glasses, pots with seedlings with a diameter of 10 cm, 25 cm apart;
- profiles must be hermetically closed with plugs and interconnected;
- mineral wool, peat mixture or expanded clay can serve as a substrate;
- pots are installed in holes;
- a container with a nutrient solution is placed under the batteries, it is equipped with a pump.
The circulation of air and moisture will be carried out by means of a perforated hose, into which tubes are passed, supplying food to each pot of strawberries. This is the simplest option, suitable for those who are new to this growing technology.
Vertical system
The main feature of the installation of vertical equipment and, in fact, the complexity associated with this is to ensure the rise of the mineral solution.
To work, you will need a large PVC pipe with a plug for overlapping, a thick hose, a pump, a pneumatic or electric drill, sealing gaskets.
The order of work is as follows:
- holes are cut out along the marked pipe - the first should be located at a height of 20 cm from the floor surface, then the seats are cut out at intervals of 25 cm;
- holes are also made in the hose for irrigation - they should be opposite the location of the seedlings, it is first wrapped with nylon or burlap;
- it is important that the hose is placed exactly in the middle of the pipe, drainage material is placed at the bottom, and the hydroponic substrate is placed on it.
The room in which the system is equipped must be equipped with uninterrupted heating. It is necessary to fulfill other requirements for abundant flowering and the formation of strawberry ovaries.
Cultivation conditions
Based on the fact that the culture prefers an abundance of light, it needs to provide constant lighting. If you place the unit in a room with windows facing the sunny side, this will reduce energy costs, because artificial lighting is still indispensable. In winter, powerful lighting devices will be required, which should work for about 12 hours a day, it is better if the lighting is present for at least 18 hours.
A necessary requirement is to maintain a humidity level of 70%, since in conditions of drier air the growth of strawberry bushes slows down and stops, higher values \u200b\u200bare likely to cause fungus and mold.
The plant loves heat, so +23.25 degrees during the day is considered the optimal temperature for its active growth, at night it can drop to +18 degrees. If the temperature regime is too high and reaches +30.35 degrees, this leads to the death of the root system.
For cultivation, the preparation of an aqueous mixture of substances necessary for the berry is of particular importance.The best mineral nutrient solution necessarily contains components such as phosphorus, potassium and nitrogen, in addition, sulfur, calcium, magnesium, zinc, molybdenum, boron and iron must be present.
It is important to determine the level of salt, which for strawberries should be low and be 1.2-1.5 according to EU measurements. You can determine the acidity using a special Ph testing kit, while 5, 5-6, 8 are normal values for a culture. All nutrients are diluted only in distilled water.
Fans can be advised on this issue to seek help from specialists or buy a ready-made product, because an incorrectly made solution most often leads to insufficient growth, and sometimes death of strawberry bushes.
For those who first decided to do this interesting, but difficult business, it will be useful to know that there are varieties specially designed for such cultivation. The best of them are "Fresco", "Olvia", "Gigantella", "Douglas", "Bogota", "Yellow Miracle". A nice bonus to a bountiful harvest in hydroponics is the large size of the berry, which pleases the gardener.
For information on how to grow strawberries hydroponically in a greenhouse, see the following video.