Timely watering is the main problem when growing plants in a greenhouse. Humidification of the soil by rain does not occur, and evaporation is much more intense than in open ground. The optimal solution would be to organize a drip irrigation system in a greenhouse. You can assemble it yourself or purchase a ready-made kit in the store.
The drip irrigation system is an extensive network of pipelines with special outlets - droppers. Water is supplied from a nearby tank, which is fixed above the level of irrigated soil. Through water outlets, drops of water enter directly into the root zone of plants.
Spot irrigation greatly facilitates the process of moistening the soil in the greenhouse. The main advantages of this system are:
Such an irrigation system can significantly save time, increase crop yields.
There are several options for organizing a drip system. The general scheme of this process is approximately the same: water intake - filtration - drip lines - water outlet.
According to the degree of automation, drip systems are of 3 types:
A source for water intake can be a water supply system, a well, a well, a natural body of water or a tank with a volume of 200 l or more, for example, a metal barrel, a welded tank, or a tank. To ensure sufficient pressure, the container is fixed at a certain height. This can be a natural elevation on the site or a structure assembled from brick, metal, timber. Material selection depends on capacity and load. The height of the device should be about 1 m. The hole or tap for connecting the hose is located just above the bottom so that water does not stagnate and debris settles at the bottom.
The metal container must be coated with a special composition that prevents corrosion. It is best to use a plastic shower container.
The water supply network can be arranged in two ways:
To determine if the plant receives enough moisture, you can make a small hole next to it and observe the process of watering in the greenhouse. Regulate the intensity of hydration by screwing and unscrewing the screws.
Water consumption for irrigation depends on the following factors:
The calculation of the volume of water for one irrigation is done by multiplying the total area of the greenhouse by 20 liters. Knowing the number of plants and the rate of water consumption per 1 bush, you can make more accurate calculations. So, tomatoes need 1.5 liters of water per day, cucumbers - 2 liters, and cabbage consumes about 2.5 liters.
The pressure in the pipes must be taken into account. If the area is more than 50 sq.m., a pump is installed in the tank. The diameter of the pipes also matters; in domestic greenhouses it is 16 - 18 mm. In order for water to flow uniformly into all sections of the pipe, its length should not exceed 100 m.
Depending on the pressure of the water, there are droppers:
Before installing the drip system, a scheme of the irrigated area should be drawn up to indicate the places of passage of the lines and calculate their number.
Drip irrigation systems are presented by Russian, Belarusian, German, Israeli and Polish manufacturers.
The choice of design depends on the following indicators:
The most popular and affordable systems are:
In addition to automation, you can purchase kits with manual control or partially automated.
Installation of the drip irrigation system begins with the marking of the territory to be irrigated, according to the drawn up scheme.
To mount the drip irrigation system, it is necessary to prepare the following materials:
Plastic pipes are better for water supply, and flexible hoses for branching along the beds.
Tools necessary for the organization of work:
Installation technology includes the following steps:
Next, the tank must be filled with water and turn on the irrigation system.
Prior to installation, all devices must be flushed. During operation, the filters are cleaned once a week. After the season ends, the equipment is dismantled, washed, dried and stored until spring.
The drip irrigation system in the greenhouse greatly facilitates the work of gardeners and gardeners. The costs of its installation are negligible, compared with the acquired benefits in the form of time savings and increased productivity.