Method of growing rice

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture and land reclamation. The method includes discharge and drainage outflow of seepage water, application of nitrogen fertilisers and herbicides, transferring of map and site drainage and discharge channels to the mode of backwater and return the water through a water lift. Thereat the air-heating installation is mounted at the site of conjugation of the site drainage and discharge channel and the intra-entity collector, and is used for energy conversion of the hydraulic drop in the air pressure, which is reported to the water lift to return the water.

EFFECT: method enables to reduce the number of hydro-mechanical devices per area unit of rice irrigation system, to increase the use of drainage and discharge runoff, to improve the conditions of mixing and dilution with water from the waste ditch with clean irrigation water, along with an increase in fertiliser use efficiency for rice growing.

2 dwg

 

The invention relates to agriculture, particularly the cultivation of rice.

There is a method of irrigation of rice in rice systems "Kuban" and "Krasnodar" (Adhemar, Assageway, Avierinos, "rice Irrigation systems. - M.: Kolos, 1994, p.39, 41). System when a difference (in the "Krasnodar" no sprinklers and a card discharge channels last order) have local distribution, local discharge channels, irrigation areas, consisting of checks, and standard hydraulic structures on canals and roads.

However, the design data of rice systems do not provide a resource-saving technology of rice cultivation (reuse of drainage and wastewater).

Also known is a method of growing rice (see RF patent №2138946, CL 01G 16/00, including drainage outflow seepage, application of nitrogen fertilizers and herbicides and translation card release channels in the mode of backwater where prefiltermessage of checks in the card discharge channels water return back to checks by auxiliary vodopodyomnaya. Under this system of rice cultivation conserve irrigation water, due to the replenishment checks water from the card release channels along with the efficient use of fertilizers and herbicides.

The disadvantages of this method of growing the ISA are:

the inability make full use of the volume of drainage and waste runoff. Use only filter runoff, profiltrovavshih in the card discharge channels along one side of the cheque, directly adjacent to the card sprocname channel;

- the use of large numbers of Autonomous vodopodyomnaya and hydro-mechanical devices for coating module of the rice irrigation system;

unfavorable conditions of mixing in chirk clean and drainage and vent water (drainage and waste water are concentrated in the area of their receipt in the receipt, near vodopodyomnaya, and may cause local increase of salinity in check).

Technical solution to the problem is to reduce the number of hydromechanical devices per unit area of rice irrigation systems, increased use of drainage and waste runoff and improve the conditions of mixing and dilution water discharged from network net irrigation water in the repeated use of drainage and waste runoff, in addition to increasing the efficiency of use of fertilizer in rice cultivation.

This object is achieved in that in the method of rice cultivation, including discharge and drainage outflow seepage, application of nitrogen fertilizers and herbicides, the transfer card and drainage district-release channels in the mode of backwater and return the water through a water lift, according to the invention set vozduhonagrevatelnye installation in place of the pair of the precinct drainage-discharge channel and on-farm collector and used to convert the hydraulic energy of the drop in air pressure, which are reported to the water lift to return water.

The novelty of the claimed proposal due to the fact that with this method of rice cultivation is achieved by the most efficient use of the volume of drainage and discharge of wastewater into the grass-roots level was GROWING conditions improve mixing of sewage and irrigation water, reduce the number of hydromechanical devices per unit area of rice irrigation systems.

According to the patent and scientific literature is not detected is similar to the claimed combination of features that allows us to judge about the level of invention proposals.

The invention is illustrated by drawings, where figure 1 shows a diagram of a rice irrigation system "Kuban", figure 2 shows a diagram of the irrigation system "Krasnodar".

The method of rice cultivation is carried out as follows. In rice irrigation system reset and drainage water outflow occurs from checks 1 card in drainage discharge channels 2 (system Kuban figure 1) and precinct drainage and discharge channels 3 (both systems figure 1, figure 2), is that during the growing period of rice are in full - work backwater (water level is maintained at 0.5 m below the surface of the checks).

In node 4 (pair precinct drainage-discharge channel and on-farm collector) is formed of a hydraulic differential between the filled drainage district-sbresny channel 3 and on-farm collector 5, the level in which the water is maintained at minimum levels. Hydraulic drop in water levels is used as an energy source for vozduhonagrevatelej installation 6, which creates air pressure. As vozduhonagrevatelej installation 6 can be used a number of devices which converts the hydraulic energy difference (for example, EN 2318956 C1, equipping its pressure air piston pump, or other similar device). From vozduhonagrevatelej installation 6 is the flow of air under pressure through the duct 7 (runs from a plastic pipe with a diameter of 15-30 mm), for water installation 8, which is placed at the beginning of the precinct drainage-discharge channel 3 is the piston pump, which is driven by the energy of compressed air. Water installation 8 delivers water through a pipeline 9 of the precinct drainage-discharge channel 3 on-farm dispenser 10.

Thus, during the growing season of rice, drena the but-discharge flow is delivered in-house distributors 10, where dilution of the net irrigation water, before re-supply for irrigation. This reduces the number of hydro-mechanical devices (due to the proposed scheme works on farm dispenser, which provides coverage of the rice module) and salinity decrease served in cheques drainage and waste runoff, no suppression of the growth of rice under irrigation water with high concentrations of salts.

This method of rice cultivation is the same for use in rice irrigation system type "Kuban" 1, and for rice irrigation system type "Krasnodar" 2.

The method of rice cultivation, including discharge and drainage outflow seepage, application of nitrogen fertilizers and herbicides, the transfer card and drainage district-release channels in the mode of backwater and the return of water through water lift, wherein the set vozduhonagrevatelnye installation in place of the pair of the precinct drainage-discharge channel and on-farm collector and used to convert the hydraulic energy of the drop in air pressure, which are reported to the water lift to return water.



 

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