The method of rice cultivation

 

(57) Abstract:

The invention relates to agriculture, particularly the cultivation of rice. In this way prefiltermessage of checks in the card discharge channels water return back to checks by auxiliary vodopodyomnaya. The invention will improve the efficiency of the use of fertilizers, herbicides and water saving. 1 Il.

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

There is a method of rice cultivation (see Coll. articles "improving the soil productivity of the rice fields", edited by E. N. Mishustin. M.: Nauka, 1985, S. 31), which implies obtaining the highest yield of rice due to the optimal mode drain-release channels. On the basis of research for optimal adopt the following mode of card release channels: from sowing to tillering rice - free outflow from tillering to maturity - a backwater.

Also known technical solution, involving the most complete use of the rice plants of nitrogen fertilizers (see and.with. USSR N 967416, class A 01 G 29/00, A 01 C 21/00, 1982 - the authors used as a prototype). The efficiency of fertilizer use under this technical is operating water why the water level in the drainage discharge channel is reduced to a minimum, and after reaching fertilizers root-horizon soils in the drainage discharge channel creates a backwater. The described method of fertilizer application fits in the known mode of operation drainage and vent network rice irrigation systems: from sowing to tillering - free outflow from tillering to maturity - afflux release channels. The introduction of nitrogen fertilizing held a few days prior to the transfer of drainage and discharge network of free outflow mode backwater. Free outflow big difference horizons water on checks and card discharges, high filtration rate, filtration current is the movement of ammonium ions from the surface of the field in the zone of the root layer. When translating card release channels in the mode of backwater filtration rate decreases, nitrogen ions are trapped in the rooting zone and effectively used by plants.

However, after transfer card release channels in the mode of backwater filtering from the check in card discharge channels continues, albeit with less intensity. Nitrogen from soils rice checks shall be made with a filtering current card in drain-waste-Kahn is emer, herbicides - Landex, Sirius, Agrotex) that rice fields are processed for destruction of weeds. As a result of leaching in waste network batteries and herbicides are reducing the efficiency of the applied fertilizers and treatments with herbicides, and environmental degradation of receiving waters.

Technical solution to the problem is to increase the efficient use of fertilizers, herbicides and water resources in the cultivation of rice.

The task is achieved in that in the method of rice cultivation, including drainage outflow seepage, application of nitrogen fertilizers and herbicides and translation whale release channels in the mode of backwater, prefiltermessage of checks in the card discharge channels water return back to checks by auxiliary vodopodyomnaya.

The novelty of the claimed proposal due to the fact that under this system of rice cultivation provides a more complete and efficient use of fertilizers and herbicides, along with savings of irrigation water due to the replenishment checks water release channels. To limit the total amount of fertilizers and herbicides submitted filtration current waste of sergeenkov.

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 in the drawing, where the circuit module of the rice irrigation system for rice cultivation using piston offline vodopodyomnaya system as an example, "Kuban".

The method of rice cultivation is carried out as follows.

In rice irrigation system drainage outflow water filtration is carried out checks 1 in the card discharge channels 2 and make nitrogen fertilizer and herbicides. Then with the onset of tillering rice creates a backwater in the card discharge channels 2 and returns prefiltermessage in the card discharge channels 2 water back in cheques by means of lifting units 3, which are included in the work since the creation of backwater in the card discharge channels 2 rice irrigation system and return checks 1 from 10% to 25% of the water passing through kartavyam sbresny channels. As water lifting units 3 can be used, for example, piston offline vodopodyomnaya (decision on granting of the patent of the Russian Federation on Z. N 97103801/1 the 3 sets at the end of the card release channels 2 and serves water to the adjacent on both sides to kartavyam sbresny channels 2 checks. When there is a small difference between the elevations of the surfaces of the rice paddies adjacent to the card sprocname channel 2, it is possible to artificially create a height difference of the surface of the water in the first and second half of the card discharge channel and optionally water installation 3 in the middle of the card discharge channel 2. Piston offline vodopodyomnaya are low-pressure devices and operate stably at low hydraulic gradients artificially created in the middle of the card release channels 2 and at the confluence of card release channels 2 to district collectors 4. The return water stop since the start of water discharge from the surface of checks to dry soil before the harvest of rice. This way vodopodyomnaya in terms of rice irrigation system will allow you to restrict the removal of the filter current in the waste network and return back to checks nitrogen compounds and solutions of herbicides. When used for destruction of weeds herbicides systemic action the proposed method allows to reduce the regulatory dose of pesticides, as the solution of the waste channel together with water again in a check to the rice crops and weed plants.

 

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