Method of rice cultivation

 

(57) Abstract:

Usage: in agriculture, in particular in the way of rice cultivation. The invention is: to improve the yield and destruction providng weeds method after planting rice sprinkling with normal irrigation 300 - 500 cubic m/ha and the average intensity of water supply is 0.9 - 1.2 mm/min Then the humidity support sprinkler due to natural rainfall is not less than 50 - 60 % of field capacity before reaching providename weeds age 1 - 1.5 sheet. 5 C.p. f-crystals.

The invention relates to agriculture, namely, the yield of rice cultivation.

There is a method of rice cultivation, selected as a prototype, which before sowing sprinkler irrigate after emergence providng weeds carry out their mechanical destruction of soil-cultivating machines, then undertake sowing of rice, flooding water 0,05-0,07 m, and at a humidity of 75% of the value of the smallest capacity is watering sprinkler norm 250-300 m3/ha. Destruction providng weeds of the second tier is performed by the layer of water 120-150 mm, as growth providng weeds SL is the thinning of seedlings of rice, incomplete destruction providng weeds and low yields of rice.

The purpose of the invention is to increase yields, destruction providng weeds, reduction of environmental pollution.

The method is as follows.

Rice cultivation is conducted on engineering irrigation system, having the ability to implement irrigation sprinkler. Use high-yielding varieties of rice intensive type. Sowing is carried out in the prepared soil mainly in the least (1-2 decade) a seeding rate of 160-180 kg/ha with the seed depth is 10-20 mm Immediately after sowing to carry out an initial sprinkling normal watering 300-500 m3/ha and the average intensity of water supply is 0.9-1.2 mm/min up to 90-95% saturation water arable horizon at a depth of 0.12 m Sprinkler perform sprinkler Assembly front type, which takes water from an open sprinkler when driving along it. To achieve providename weeds age 1-1 .5 sheet support soil moisture is not below 50-60% of field capacity by sprinkling or by precipitation.

Flooding cheque produce an overlap layer of water at a time until the complete destruction of providng of sort the lower water layer until the tips of the plants on the water surface, but without reducing it below 50-70 mm relative to the highest section of the check equal to of the total area not less than 1%. At the age of 3-4 plants leaf rice water layer support 50-70 mm from 6 to 7 leaf water layer increased up to 200 mm, with the advent of the 8-th sheet before the start of waxy ripeness support layer of water 120-150 mm To the beginning of the waxy feed water stop and a layer of water daily reduced by 10 mm so that for 12-15 days before harvesting it had not been on the water surface. Harvesting commodity rice begins when 85-90% of the grains in the panicle reached full ripeness.

The proposed method of rice cultivation provides optimal density of rice seedlings, reducing vegetation period of 10-15 days, increasing yields by 30-40% and the destruction providng weeds without using herbicides.

The average rice yield in the cultivation of the proposed method is 5.6 t/ha, while in the control plot (under rice cultivation prototype) 4.2 t/ha

The increase in grain yield due to the fact that after planting rice is watering sprinkler and against providng weeds do not apply herbicides that inhibit almost all rice varieties. Oeste seeds and yield of rice.

The method can reduce environmental pollution, improve the environment in areas of rice cultivation and to reduce the irrigation requirement of 3-4 thousand m3of water per 1 ha

1. METHOD of RICE CULTIVATION, including tillage, fertilizer, seeding, watering sprinkler with maintaining a given level of soil moisture and flooding cheque water layer different heights taking into account the phases of development of rice plants, characterized in that immediately after sowing of rice to carry out an initial overhead irrigation with normal irrigation 300 - 500 m3/ha and the average intensity of water supply is 0.9 - 1.2 mm/min, and then to achieve providename weeds age 1 - 1.5 leaf soil moisture least 50 - 60% of field capacity support sprinkling or by precipitation, followed by the flooding water to kill providng weeds and optimum density of seedlings of rice.

2. The method according to p. 1, characterized in that the initial sprinkler perform up to 90 - 95% saturation with water arable horizon at a depth of 0.12 m

3. The method according to p. 1, characterized in that after reaching the seedlings of rice age 1 - 1.5 sheet hold the lower water layer dka.

4. The method according to p. 1, characterized in that at the age of 3 - 4 leaf water layer support 50 - 70 mm

5. The method according to p. 1, characterized in that from 6 to 7 leaf water layer increased up to 200 mm

6. The method according to p. 1, characterized in that with the advent of 8 sheet prior waxy layer of water supports equal 120 - 150 mm

 

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FIELD: agriculture, in particular, controlling of weedage in rice growing.

SUBSTANCE: method involves sowing rice crop to obtain young crops through wetting of soil in checks and provoking germination of weeds (barnyard grass); treating weed sprouts having no more than 3-4 leaves with binary bacteriological mixture of two kinds of herbicides used in doses of 0.9-4.0 l/hectare, respectively, at flow rate of up to 500 l/hectare; creating constant water track in check of 5-7 cm depth 48 hours after treatment of weeds.

EFFECT: increased efficiency in controlling of weeds, such as barnyard grass, and increased rice yield.

1 tbl, 1 ex

FIELD: agriculture, in particular, rice cultivation method.

SUBSTANCE: method involves tillage of soil; providing presowing application of mineral fertilizers; treating rice seeds with growth promoter used in an amount of 1-30 ml/t; sowing and irrigating. Method allows dose of nitrous fertilizer applied during presowing period to be reduced by 30% without reducing rice yield.

EFFECT: reduced production costs and decreased influence of agronomical chemicals upon environment owing to reduced technogenic loading thereof.

6 tbl, 1 ex

FIELD: agriculture, in particular rice cropping.

SUBSTANCE: claimed method includes soil treatment, fertilization, seeding and irrigation regime, plant treatment in tillering period with mixture of herbicide and growth controlling agent. Treatment id carried out using mixture of bazagran M as herbicide in amount of 3 l/hectare and emystim as growth controlling agent in amount of 0.5-5 ml/hectare against the background on N60-120P90K60.

EFFECT: decreased adverse herbicide action; increased rice yield.

4 tbl, 1 ex

FIELD: agriculture, in particular, rice cultivation.

SUBSTANCE: method involves returning water filtered into waterway back into checks by means of water lifts which are positioned in retaining structures additionally provided on parts of waterways; returning drainage and waste water into irrigation and distribution network through additional open feeding channels. Method allows drainage and waste water volume to be effectively utilized and conditions for mixing and diluting of drainage and waste water with pure irrigation water to be improved.

EFFECT: increased efficiency in utilizing of water from rice irrigation systems and improved conditions for utilization of fertilizers in rice cultivation.

2 dwg

FIELD: plant growing, in particular, rice disease controlling process.

SUBSTANCE: method involves treating rice young crops at milky-wax ripeness phase with carbamide mixture in dose of 20-30 kg/hectare, pherazime SC fungicide in dose of 0.6 kg/hectare, and luvaram containing growth promoter in dose of 22 ml/hectare at mixture flow rate of 100 l/hectare.

EFFECT: increased efficiency in controlling of piricularia pitting rice disease at late development stages and during milky-wax ripeness stage when plant's vegetative and generative organs are simultaneously stricken by disease.

1 tbl, 1 ex

FIELD: agriculture.

SUBSTANCE: method ensures the facilities for active biomass growth of alga water net (Hydrodictyon reticulatum (L) Lagerh) over the water surface. Shallow work is carried out in the lea, in spring crop remains are embedded, nitrogenous fertilisers are added with the dosage 20-30 kg/ha, and then constant water sheet is made, that is kept in the period from May till August. For example, urea is added in the soil as nitrogenous fertilisers.

EFFECT: decreased level of rice fields infestation with the main weeds of boggy and gramineous type, and also with red-grained rice.

2 cl, 2 tbl, 3 ex

FIELD: agriculture.

SUBSTANCE: this method suggests constant 10-12 cm water level during whole growing period up to rice harvesting. Herewith calurea treatment of rice is performed during the 5-6 leafs stage. This invention allows increasing waterweed (Hydrodictyon utricnlatum Pooth.) control efficiency in rice plantings during tillering stage (3-7 leafs).

EFFECT: increase of waterweed control efficiency in rice plantings.

2 tbl

FIELD: agriculture.

SUBSTANCE: method includes preplanting treatment of seeds with a plant growth regulator. In order to enhance capacity of survival of rice, aqueous solution of Melaphen at strength of 110-6-110-9 g/l is applied as a plant growth regulator.

EFFECT: efficient increase of viability and germinating ability of the seeds, enhancement of survival capacity of rice, increase in productivity and positive impact upon technological characteristics of the products.

5 tbl

FIELD: agriculture.

SUBSTANCE: method includes sowing rice seeds with their placement in soil at the depth 2.5-3 cm. After that fields are flooded with water for 3-5 days for seed soaking. Then water is drained for period of seed germination. After that re-flooding of fields with water is carried out.

EFFECT: method insures dense shoots and reduces decree of rice layering, which allows to increase rice yield and its harvesting.

1 tbl

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture and land reclamation. The method includes an autumn tillage by disking, harrowing, sowing of winter crops and wintering intercrops, their harvesting and planting rice. After harvesting of winter crops and wintering intercrops a general planning of checks planes with simultaneous repair of water-inlet and water-outlet irrigation network, restoring check rollers and roads. Then, on the checks surface a maximum layer of water is created and supported until the end of the irrigation season. Thereat the soil is maintained in a condition of maximum water capacity for the entire winter period, after which the density of the plow layer reaches 1.05-1.1 t/m3.

EFFECT: method enables to save energy capacity and reduce the labour intensity of melioration measures carried out; it does not require a spring presowing processing and agro-technical measures; to improve the quality of control of weeds, to increase yields, to reduce the cost of produced grain of rice, to improve the ecological situation in the rice irrigation system.

3 tbl, 1 ex

FIELD: agricultural engineering, in particular, equipment for drop irrigation of farm crops.

SUBSTANCE: apparatus has cylindrical casing with inlet and outlet openings. Cylindrical casing has threaded covers and body. Valve and elastic cuff are movably positioned inside cavity of cylindrical casing. Apparatus is further equipped with additional cuff. Main and additional cuffs are provided with orifices. Valve is made in the form of concavo-concave lens arranged in spherical belt. Valve is manufactured from material having density smaller than density of water, in particular, valve may be made from cork of 0.2-0.3 t/m3 density. Valve is arranged in casing between cuffs and is adapted for alternating contacting through cuffs with projections oppositely arranged inside casing cavity. Projections are made in the form of spherical segments, with radius of spheres of segments being smaller than radius of spheres of concavo-concave valve lens. Difference between radii of projection sphere and that of spheres of concavo-concave valve lens is equal to thickness of elastic cuffs. Channels on apexes of cover and casing projections are extending in radial direction toward inlet and outlet openings.

EFFECT: increased efficiency and enhanced reliability in operation.

4 cl, 4 dwg

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