Method of growing rice

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, in particular the cultivation of rice. The method includes the supply of water from the distributor to the rice fields, the outflow of seepage water from the checks in the waste channels and re-use of seepage water for flooding checks. The outflow of seepage water is carried out by the use of mowing weeds from the waste channels. Mowing weeds is carried out in the period from emergence of grains of rice to the end of tillering to stem height of 0.2-0.3 m, then from the end of tillering and to coming to the phase of the tube - to the height of the stem 0.6-1.0 m, as well as in the period before tasseling the tassels to the middle of the phase of maturation - to the height of the stem 0.2-0.3 m.

EFFECT: invention enables to provide an optimum temperature mode in a rice field and reduce the irrigation rate by reducing water losses for seepage from the rice check and increase rice yield.

1 tbl, 1 ex

 

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

There is a method of irrigation of rice in which reuse discharged from the surface of cheques water (ed. St. USSR 1115665, CL 01G 25/02, 1984). In this way local distributors and card sprinklers are used at the same time and by dumping, which is achieved by using control structures. Mobile pumping station located at the beginning of the precinct of the sprinkler supplies water to the dispenser with further dilution of its net irrigation water and its supply to the sprinklers. Drainage network consisting of card drains and district collectors, drains prefiltermessage water from checks.

The disadvantages of this method are the following provisions: for desalination drainage and wastewater collector fueled by clean irrigation water, which results in an increase in the drawdown of the network and, as a consequence, in the soil of the check start to flow anaerobic processes, negatively affecting the development of plant rice; significant capital and energy costs, as drain-waste-water serves for irrigation pumping stations.

There is a method of rice cultivation (U.S. Pat. RU # 2138946, A01G 16/00, AV 79/02, A01G 9/00, AS 7/00, 24.06.1998). In this way prefiltermessage of checks in the card discharge channels water return back to checks on what redstem offline vodopodyomnaya.

The disadvantages of this method are the large energy and economic costs of the seepage recovery in check by auxiliary vodopodyomnaya.

There is a method of rice cultivation (U.S. Pat. RU # 2218751, A01G 16/00, A01G 25/00, 20.12.2003), including the supply of water from the dispenser on the rice fields, the outflow seepage from checks in the card discharge channels, re-use water filtration for checks flooding through vodopodyomnaya and application of nitrogen fertilizers and herbicides.

The disadvantages of this method are the need for herbicides and large energy and economic costs of the seepage recovery in check by vodopodyomnaya, resulting in lower quality grain rice and environmental security in the rice irrigation system.

The technical result of the invention is the provision of optimum temperature regime for rice field and reduce irrigation requirements by reducing water loss by filtration with rice cheque, savings on waste pumping stations and vodopodyomnaya, the amelioration of soils and ecology of rice fields by reducing sufoziya and removal of nutrients from the soil, reducing the cost and increasing the yield of rice.

Those are the technical result is achieved by in the conventional method of rice cultivation, including the supply of water from the dispenser on the rice fields, the outflow seepage from checks in the discharge channels, re-use water filtration for checks flooding since the beginning of the growing season of rice, according to the invention reduce the outflow of water filtration by use of weeds growing in the discharge channels, while mow down weeds between diocletiani grain rice until the end phase of tillering at the height of the stalk 0.2-0.3 m in the period from the end of the tillering phase and to output a phase tube to the height of the stem of 0.6-1.0 m in the period before panicle inflorescence emerge until the mid phase of maturation - at the height of the stem of 0.2-0.3 m

The novelty of the claimed invention due to the reduction of losses of irrigation water for percolation from rice cheque and energy savings on waste pumping stations by controlling the position of the depression curve seepage under paddy field due to changes in water flow in the discharge channel, carried out by mowing weeds in drainage channels at a predetermined height in a certain phase of the growing season of rice.

Mowing weeds in drainage channels in certain phases of the growing season of rice allows you to control water flow and water level in the discharge channel of the rice system, and followed the Sabbath.) and the position of the depression curve, which contributes to the saving of irrigation water and electricity, to improve the environmental situation in the rice irrigation system and increasing the yield of rice.

The method is as follows.

Since the beginning of the growing season of rice is used to supply water from the dispenser on the rice fields, accompanied by the outflow seepage from checks in the discharge channels and re-using them for checks flooding. By mowing weeds between diocletiani grain rice until the end phase of tillering at the height of the stalk 0.2-0.3 m in the period from the end of the tillering phase and to output a phase tube to the height of the stem of 0.6-1.0 m, in the period before the panicle inflorescence emerge until the mid phase of maturation - at the height of the stalk 0.2-0.3 m, reduce the outflow of water filtration. An example of the method.

Testing method of rice cultivation was carried out in the Krasnodar region CJSC "chernoerkovskoe" Slavic area. In the spring, from the beginning of the rice growing season, water was channelled from the dispenser on the rice fields. During the vegetation period was done mowing weeds in the discharge channel at different heights: between diocletiani grain rice until the end phase of tillering at the height of the stalk 0.2-0.3 m in the period from the end of the tillering phase and to output a phase tube to the height of the stem of 0.6-1.0 m, inperiod before panicle inflorescence emerge until the mid phase of maturation - at the height of the stem of 0.2-0.3 m

As a result of application of this method of rice cultivation was obtained 15% yield increase of rice. The cost of produced grains of rice fell by 5%. Electricity consumption at waste pumping stations during the growing season of rice decreased by 15-20%. The temperature of the water in the rice fields was at 4-6 degrees higher in comparison with the control field. The proposed method allowed to reduce the irrigation requirement by 40% and improve the environmental safety of the rice irrigation system due to the amelioration of soils of rice fields (table 1).

Table 1 - Change of ameliorative condition of soils in the rice paddies in CJSC "chernoerkovskoe" Slavic district
Room / Feature checksDepth selection, cmN-NO3N-NH4P2O5K2AboutHumus, %
166 (1) / by the way0-51,920,4811,16,9 2,55
5-101,800,4511,06,9
166 (2) / control0-51,420,3810,86,92,32
5-101,370,3810,06,7
168 (1) / by the way0-52,121,0910,45,62,68
5-102,071,0410,3of 5.4
168 (2) / control0-51,170,6910,35,52,41
5-101,160,66the 10.1 5,1

The method of rice cultivation, including the supply of water from the dispenser on the rice fields, the outflow seepage from checks in the discharge channels, re-use water filtration for checks flooding since the beginning of the growing season of rice, wherein the lower outflow seepage of water through the use of weeds growing in the discharge channels, while mow down weeds between diocletiani grain rice until the end phase of tillering at the height of the stalk 0.2-0.3 m in the period from the end of the tillering phase and to output a phase tube to the height of the stem of 0.6-1.0 m and in the period before the panicle inflorescence emerge until the mid phase of maturation - at the height of the stem of 0.2-0.3 m



 

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