Subsurface irrigation system

FIELD: agriculture, in particular, subsurface moistening with mineralized water.

SUBSTANCE: subsurface irrigation system has steam-like moisture preparing unit, and supply pipelines hydraulically communicated with network of subsurface perforated moisteners having length sufficient for reaching upper boundary of soil layer with set moisture content. Area of perforation openings of moistener is increasing from the top to the bottom to provide moistening of vertical conical volume of soil around moistener widening toward lower end. Subsurface irrigation system allows plant growing conditions to be improved.

EFFECT: reduced consumption of water, decreased material and power consumption for operation of system, increased effectiveness and reduced agricultural product costs.

1 dwg

 

The invention relates to agriculture and can be used when soil moisture using mostly saline water.

Known sub-surface irrigation system, the essence of which is to obtain vaporous water and feed it into the compressed air stream in the soil zone of the root system of plants to soil moisture through the perforated tubular humidifiers [1].

The disadvantage of this system is that the moisture deficit for power plants in the period of his life filled only by sub-surface irrigation system.

The objective of the invention is to increase the efficiency of moisture by forcing the development of the root system of the plants into the soil to a layer with the steady humidity and further its absorption of moisture from the layer.

The problem is solved due to the fact that in the known system sub-surface irrigation, including the preparation unit vaporous moisture in the volume of compressed air supply piping hydraulically connected to a network of underground perforated humidifiers, according to the invention, the subsurface perforated moisturizers made of length sufficient to reach the upper soil layer with established humidity, and the area of perforation holes will moisturize the La increases from top to bottom, providing hydration vertical cone-shaped volume of soil around the humidifier with the lower extension.

The invention is illustrated in the drawing, in which figure 1 presents the proposed system sub-surface irrigation.

The system has humidifiers 1, connected by pipes 2 and 3 with the automated processing block water vapor in a volume of compressed air 4 (similar to the prototype), which is injected into the volume of soil development of the root system of plants 5 and the humidity in this volume of soil is determined using a moisture meter 6.

Top parched soil layer And has a strongly bound water, which, as you know, the root system of plants to absorb cannot. Below the soil layer B contains tightly bound and rahoveanu water, the amount of the latter increases with depth and at a certain level reaches its maximum at a specific water-holding capacity of soil, which corresponds to the steady-state humidity. Deeper is a layer In which the steady-state humidity is supported by the migration inflow rychlovarnou water 7 from the deeper soil layer D containing free (gravitational) water filling its pore space. Free water in the layer G enters rahoveanu water 7 migrating in the upper layers during the drying of the soil./p>

It is well known that the root system of plants absorbs rahoveanu water and a sufficient amount the plant grows well. It is known that the plant root system develops in an area with a high content of rychlovarnou water. That is, in our case, the plant root system develops in a vertical cone-shaped volume of soil 5, artificially humidified system subsoil humidifiers 1.

The development of the root system of plants in the depth of the soil layer to the zone of steady-state soil moisture is achieved in that the tubular humidifier 1 has a length sufficient to reach the tip of the upper boundary of this zone, and the area of the perforation holes of the barrel of the humidifier increases from top to bottom, providing hydration vertical cone-shaped volume of soil around the bottom of the humidifier his broadening, as shown in figure 1. In the future the plant root system begins to absorb the main volume rychlovarnou water necessary for the good development of the plants from the soil layer C. In this case, the sub-surface irrigation system is turned off. When deterioration of the humidity and aeration mode in the volume of soil the root system of plants hydrometers 6 serves low-voltage signal in block 4, including sub-surface irrigation to replenish moisture deficit in the volume of soil the roots of the new system of plants to the regulatory moisture.

The system proposed subsurface irrigation works in the following way. Having humidifiers 1, connected by pipes 2 and 3 with the automated processing block water vapor in a volume of compressed air 4 (similar to the prototype), the system transports the water vapor in the volume of the compressed air network of pipes 2 and 3 in the subsoil humidifiers 1, through which it is injected into the volume of soil development of the root system of the plant 5. In this volume 5 is forced aeration of the soil expiration of compressed air through the humidifier 1. Upon reaching regulatory humidity in the volume of soil 5 and development of the root system of the plants that have reached the upper boundary layer, moisture meters 6 serves low-power signals in the block 4, which transformed it into an electrical shut-off unit 4. Further vlagootvedeniem the root system of the plants is carried out from the soil layer In which the steady-state humidity supported migration rychlovarnou water 7 from the layer D containing gravity (free) water.

When deterioration of the humidity and aeration mode in the volume of soil the root system of plants hydrometers 6 serves low-voltage signal in block 4, including sub-surface irrigation to replenish moisture deficit in the volume of soil the root system of plants to normative the th humidity.

The proposed sub-surface irrigation system allows you to:

- to improve the conditions of plant growth;

- reduce the consumption of water for subsurface irrigation;

to reduce material and energy costs to operate the system;

to increase the efficiency of the system sub-surface irrigation;

- to reduce the cost of agricultural production.

The proposed sub-surface irrigation system allows you to perform tasks in full in arid areas with sources of saline water for irrigation.

Sources of information

Auth. mon. No. 1782470, CL A 0/G 25/06. BI No. 47, 1992 prototype.

The sub-surface irrigation system, including the preparation unit vaporous moisture in the volume of compressed air supply piping hydraulically connected to a network of underground perforated humidifiers, characterized in that the perforated subsoil moisturizers made of length sufficient to reach the upper soil layer with established humidity, and size of the perforation holes of the humidifier increases from top to bottom, providing hydration vertical cone-shaped volume of soil around the humidifier with the lower extension.



 

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