Method of integrated reclamation of irrigated saline soils
SUBSTANCE: method comprises deep loosening of soil, application of fertilizers and ferrous sulphate solution, and watering with increased irrigation rate. At that as the fertilizer the urea formaldehyde fertilizer is applied in the topsoil, which is saturated with ferrous sulphate solution and encrusted with phosphogypsum. After completion of washing the fertilizer is moved to the lower part of the ploughed horizon.
EFFECT: efficient desalination of irrigated saline soils with improvement of soil structure, increase in soil fertility and erosion resistance without damaging the surrounding area and plants.
The present invention relates to the field of agriculture and will be used for reclamation of saline lands, mainly soda solonetzes.
Feature of soda solonetzes is the large number of their salts, sodium carbonate, have a dampening effect on plants. For soda-saline soils are characterized by a pronounced alkaline reaction (pH 9-11) and low soil productivity.
To desalinize soda solonetzes use the methods of complex reclamation, combining loosening of saline layer, depositing homelegance, flushed the soil with disposal of wash water drainage. When desalinization soda solonetzes normal homelegance (gypsum, phosphogypsum, etc.) do not give effect due to their poor solubility in alkaline medium. In these conditions, the most effective acid and acid-forming substances. The most widely sulfuric acid and ferrous sulfate (iron sulfate).
The known method of complex reclamation of soda salt licks, including the construction of a drainage and irrigation network, the layout of the soil, making homelegance and flushed with the discharge of wash water in the collector-drainage network (Maslov B. S., Minaev I. V., Huber K. V. Handbook of reclamation", M, "Rosagropromizdat", 1989, pp. 297-301).
The disadvantage of tragopogon are the high application rate of ferrous sulfate (280 t/ha), a large amount of water (50 thousand m3/ha), the need for the construction of drainage and disposal of diverted drainage flow.
The closest present invention is a method of integrated reclamation of saline lands, including deep loosening of soil at the site, fertilization and irrigation sprinkler with increasing irrigation rates by 20%. In irrigation water add 0.5 to 0.7% iron sulfate (L. A. Kazakov "Integrated irrigation of saline soils" Proc. n of Tr. "Problems of water-saving irrigation and melioration of soils", unijos, Volgograd, 1994, pp. 122-128).
A comprehensive reclamation of saline lands with the use of this method allows to combine the washing with holding irrigation, thus increasing irrigation rates of only 20%, which is 10 times less than in the capital leaching flooding.
However, this method has several disadvantages: the absorption of ferrous sulfate by plants through the leaf surface, when exceeding a given concentration of sulfate in irrigation water can cause burns leaf surface of plants, flow and higher standards of irrigation water containing sulphate of iron, leads to the formation of surface runoff containing ferrous sulfate, and contamination of adjacent territories, as well as to water erosion top�layer of the soil.
To eliminate the mentioned disadvantages allows the method of complex reclamation of alkali lands, including deep loosening of soil, fertilizer and solution of sulphate of iron, irrigation high irrigation rate, which according to the proposed invention, as fertilizer in the topsoil to make urea-formaldehyde fertilizer, a saturated solution of sulphate of iron and inlaid with phosphogypsum, which after washing move to the bottom of the plough layer.
New technical result from the use of the proposed method is that the introduction of sulphate of iron in solution in the composition of urea-formaldehyde fertilizers "Mohn" (Pat. Of the Russian Federation No. 2230719, IPC C05C 9/02, 2004) provides humidification of soil gradual release in soil solution interaction with the soil absorbing complex (ACC) is forced out of sodium. Thus the sulfuric acid formed in the process of interaction of sulfate with the soil solution increases the efficiency of desalinizing action of phosphogypsum. When conducting spray irrigation increased irrigation norms, there is a gradual movement of ferrous sulfate from the structure of Manama" in the depth of the loosened soil and desalinization. Thus preventing the ingress of sulfate on�Ernest leaves and wash its surface runoff of irrigation water. "Mohn", included in the upper layer of the soil, reduces the erosive effect of rain thanks to the strength of granules "Mohn" and coagulating action on the soil structure of iron hydroxide formed during the interaction of sulfate with the soil solution.
The proposed method of complex reclamation of alkali lands is as follows.
Autumn on the saline land produce loosening of saline layer using deep-WG at a depth of 0.8 to 0.8 m Then produce the fertilization "Mohn" by sealing it in the top layer of soil to a depth of 0.1-0.15 m heavy disc harrow. Before making "Mohn" is prepared using a method similar to the Method of preparation of foamed karbomidoformaldegidnogo fertilizer to make for plowing" (Pat. Of the Russian Federation No. 2497338, IPC A01C 3/00, C05C 9/02, 2013). Unlike the known method pellets "Mohn" saturate 20-30% solution of ferrous sulfate to fill 70-80% of their pore space, and then encrusted with crushed phosphogypsum (5-7 t/ha) with the formation of a thin layer on the surface of the granules. For preparation of a solution of ferrous sulfate can be used slurry. The application rate, thus prepared, is taken equal to 20-25% of the volume of topsoil (0.1-0.15 m) and 250 m3/ha 25 t/ha. This figure�ladybeetle of 5 t/ha of dry fertilizer "Mohn", 5 t/ha of phosphogypsum, while absorptivity fertilizers 350% of its pores after saturation will retain more than 15 t/ha of 30% solution of ferrous sulfate in the dry matter of about 5 t/ha corresponds to the norm of its submission to the prototype method. When precipitation autumn precipitation the upper soil layer is saturated with moisture, the diffusion of a solution of sulphate of iron from pellets "Mohn" in soil solution and neutralize its alkalinity. In the process of interaction with the soil solution are formed hydroxides of iron and free sulphuric acid. The iron hydroxide promotes the aggregation of fine fractions and to improve vodoprochnost patterns of the upper layer of the soil. Sulphuric acid acts on the carbonate salts of phosphogypsum, increasing their activity in the displacement of sodium from the CPD and the formation of soluble salts of sodium sulfate, which is well washed out in the spring downward current of melt water.
In the spring when the ground state of maturity at the produce section of her pre-sowing treatment without turning the soil and planting. The introduction of the "Mohn" in the upper layers of the soil creates favorable conditions for the supply of seedlings due to the high content of nitrogen and the formation under the action of sulfuric acid available to plants of phosphorus compounds in the phosphogypsum. Vegetation irrigation is carried out with the supply of design polyun�th standards increased by 20% to create the wash of the current. When conducting irrigation topsoil containing up to 20% of solid granules "Mohn" and soil particles that were embedded under the action of the coagulant, more effectively resist the eroding effects of rain drops. Desalinization of topsoil in autumn it improves water infiltration and increases the rate of absorption of irrigation water, which washes away from the upper root layer of sodium sulfate in the depth of the loosened horizon, provides the diffusion of a solution of sulphate of iron from pellets "Mohn" in soil solution and transfer it to a more deep saline aquifers for their dissolution.
After washing and harvesting the produce section plowing with the turnover of the reservoir, moving the "Mohn" in the depth of the arable layer, providing the increase of its fertility and water holding capacity. On the surface of the soil made soil layer subjected to desalinization. The following year, when watering is carried out without increasing irrigation norms, "Mohn", moved to the bottom of the plow layer due to its high water-holding capacity will play a role of a buffer, delaying salt rising from the depths of the saline horizon, until you remove them through seepage of flood water in the spring.
Thus, the proposed method effectively provides� desalinization of saline irrigated lands, improving their structure, improving soil fertility and erosion resistance without harming the surrounding areas and plants.
The method of complex reclamation of alkali lands, including deep loosening of soil, fertilizer and solution of sulphate of iron, irrigation high irrigation rate, characterized in that as fertilizer in the topsoil to make urea-formaldehyde fertilizer, a saturated solution of sulphate of iron and inlaid with phosphogypsum, which after washing move to the bottom of the plough layer.
SUBSTANCE: in the method the mechanical removal of the top grass layer of a lawn with the organic material to the sand is performed, 10% hydrogen peroxide solution is applied in the remaining substrate with the root system and the organic material by the 4-step sprinkler irrigation. And the first irrigation is carried out at the rate of 20 tons of hydrogen peroxide solution per 0.8 hectares. The mass of the organic material exfoliated on the surface is removed, then the next three irrigations are performed within two days, as the appearance of dark spots of organic material on sand, to obtain on the substrate surface of clean sand without the organic material. Two washing irrigations are carried out, and sand is poured for subsequent sowing seeds of sod-forming grasses in it.
EFFECT: method enables to increase the intensity and to reduce the time of formation of a strong root system of grass lawn cover, to reduce the recovery times of the lawns.
SUBSTANCE: method comprises treatment of the upper layer of the substrate of outdoor sports grounds with aqueous reagent solution. The reagent is used as 1% aqueous solution of hydrogen peroxide. Treatment of the upper layer of the substrate of sports grounds with grass surface is carried out by sprinkler irrigation with the cycle of 5 irrigations a day in amount of 20 tons per one irrigation. After treatment with the reagent the organic mass exfoliated on the surface of outdoor sports grounds is removed, a break of two days is maintained in the treatment. Then the cycle of treatment of the grass surface is repeated also by sprinkler irrigation with 1% aqueous solution of hydrogen peroxide and, if necessary, overseeding of seeds of sod-forming grasses is carried out to restore the grass surface of outdoor sports grounds.
EFFECT: method enables to increase the intensity and to reduce the time of formation of grass surface and to simplify the maintenance of grass surface.
SUBSTANCE: invention relates to environmental protection and specifically to biological reclamation of disturbed soils and recycling of industrial wastes. The material includes sludge from soda production and dehydrated excess active sludge and or a mixture of dehydrated excess active sludge and residue from primary settling tanks after treating urban household wastes. The dehydrated excess active sludge is a current output waste or a waste stabilised in natural conditions for 1-10 years, and has the following composition, wt %: organic substances - 49-67, mineral substances - 33-51, including total nitrogen of up to 5.7%, phosphorus of up to 7.4%. The sludge from soda production used has particle size of less than 0.5 mm and is obtained from centrifuging at a rate of 3800-4200 rpm and centrifuging time of 12-18 min with pH of aqueous extracts of 8.2-8.5. The weight ratio of the sludge from soda production to the dehydrated excess active sludge or mixture of dehydrated excess active sludge and residue from primary settling tanks is 2:1-1:1.
EFFECT: obtaining material for biological reclamation without limitation on the field of use, low cost of the material and wider range of resources for production thereof.
SUBSTANCE: invention relates to a composite moisture-retaining material, which can be used in crop production for the improvement of water-air and nutritional mode of soil, as well as for the recovery of vegetation on soils of various types. The composite moisture-retaining material is made on the base of acryl copolymer and filler. The acryl copolymer is made on the base of acrylamide and acrylic acid salts with a ratio of 20/80-80/20 mol. % in the presence of a cross-linking agent N,N'-methylene-bis-acrylamide and a polymerisation initiator. As the filler used is a mixture of wastes of biocatalytic productions of acryl monomers and acids of humic acids with a ratio of 99/70-1/30 wt % by dry substance in the form of a water paste or a dry powder-like form. The total content of the filler constitutes to 60 wt %. A method of obtaining the composite moisture-retaining material is described.
EFFECT: reduced cost of the moisture-retaining material, presence of an additional source of plant nutrition, simplification of technology of a filled gel manufacturing with the preservation of water-sorption properties at the level of existing filled and non-filled analogues.
2 cl, 1 tbl, 10 ex
SUBSTANCE: invention relates to method of binding non-monolithic inorganic materials by hardenable compositions, as well as to hardened compositions, which can be obtain by claimed method. Method consists in performing contact of inorganic materials with hardenable composition, which contains, at least, one hardenable etherified carbamide-formaldehyde resin, which contains certain structural units, with further thermal resin hardening. Amount of hardenable composition constitutes from 0.5 to 60 wt % counted per inorganic materials, and hardening is performed at temperature from above 0 to 280°C.
EFFECT: obtained hardened compositions possess improved physical-mechanical characteristics.
10 cl, 11 tbl
SUBSTANCE: composite material contains drilling wastes, portland cement in amount of 5-10% of the volume of the drilling wastes, technical carbon 0.5-1% of the volume of drilling wastes, quick lime 3-5% of the volume of drilling wastes, peat 20-40% of the volume of drilling wastes, sand 10-30% of the volume of the drilling wastes, phosphorus-containing mineral fertiliser 20-30 kg per ton of the composite material. The phosphorus-containing mineral fertiliser can be diammonium phosphate, ammonium nitrate phosphate fertiliser, ammophos with potassium sulphate or potassium chloride in ratio of 70:30 wt %, diammophos with potassium sulphate or potassium chloride in ratio of 70:30 wt %. The composite material further contains hydrocarbon-based spent or unused drilling fluid with hydrocarbon content of 3-5% of the volume of the drilling wastes.
EFFECT: use of the present composite material provides effective recultivation of disturbed soils while recycling hazardous drilling wastes and improves the environment.
8 cl, 3 ex
SUBSTANCE: method consists in treatment of the latter by a stabiliser containing latex polymer, which is applied mixed with water. Treatment of soil or foundation is carried out by introduction of the stabiliser by means of a cutter by the cutting method as the stabiliser is mixed with ground or foundation. The latex polymer is represented by latexes from the group that includes sterol-butadiene latex, (meth)acrylate latex, ethylene-vinyl acetate latex, ethylene/propylene latex, ethylene/propylene-dimer latex, butadiene-acrylonitrile latex, silicon latex, polybutadiene latex, latex from natural rubber or mixture of two or several of the specified latexes. The stabiliser additionally comprises a thickener based on cellulose, a defoaming agent selected from the group including silicons, glycol ethers, natural fats or oils and fatty alcohols, and also at least one chloride or at least one hydroxide of alkaline or earth metal, besides, the stabiliser has the following composition (wt %); 0.1 - 50 latex polymer, 0.05 - 5 thickener, up to 5 defoaming agent, 0.01 - 10 chloride or hydroxide of alkaline or earth metal, residue to 100 - water.
EFFECT: fixation and stabilisation of soils or foundations, making it possible without removal and recycling of oil soil and special costs to perform construction-earth works.
6 cl, 2 ex
SUBSTANCE: three types of clay of different chemical composition is used with addition of molasses and Linex biopreparation in the following ratios, wt %: Dialbeculit clay -38-40; Irlit clay 1 - 28-32; Irlit clay 7 - 16-20; molasses - 8-12; Linex biopreparation -2-4. Adding such a composition to the soil reduces the amount of oil pollutants by 72%.
EFFECT: low toxicity of soil and expenses on amelioration.
1 tbl, 1 ex
SUBSTANCE: invention relates to soil and ground chemical propping compositions and can be used in agriculture against water and wind erosion, as well as in construction of roads and other earth structures. The disclosed aqueous soil and ground propping composition contains 0.90-4.62 wt % of a charged polyelectrolyte complex and 0.08-0.87 wt % of a salt of an alkali metal or ammonia. The charged polyelectrolyte complex in said composition is a product of reacting water-containing solutions of a cationic polyelectrolyte, which contains chloride and bromide counter-ions, and an anionic polyelectrolyte from a group which includes a sodium salt of carboxymethyl cellulose, an alkali metal or ammonium salt of a polyacrylic acid or polymethacrylic acid, taken in a ratio where content of charged links of one polyelectrolyte ranges from 51% to 60% of the content of charged links of the other polyelectrolyte.
EFFECT: compared to the closest counterpart, the disclosed composition provides efficient soil and ground propping from wind erosion while reducing content of salt in the composition from 1,5-3,7 wt % to 0,08-0,87 wt % and consumption of the composition from 1-2 l/m2 to 0,3-0,45 l/m2.
SUBSTANCE: invention relates to soil and ground chemical propping methods and can be used in agriculture against water and wind erosion, as well as in construction of roads and other earth structures. The method involves mixing aqueous solutions of an anionic polyelectrolyte and a cationic polyelectrolyte and a water-soluble salt. The polyelectrolytes are mixed with their total initial concentration ranging from 1 to 10 wt % in a ratio at which content of charged links of one polyelectrolyte is equal to 5-50% of the content of charged links of the other polyelectrolyte and concentration of at least one salt, selected from a group comprising an alkali metal salt, an ammonium salt, a calcium salt and a magnesium salt, ranges from 0.01 to 0.1 wt %.
EFFECT: low content of salt in the composition and lower consumption rate of the composition.
7 cl, 7 ex
FIELD: oil and gas industry.
SUBSTANCE: cement slurry contains 46.0-75.0 wt % of binding material and as such portlandcement of packing class G or cement mix Micro TSS BTRUO or a mix of aluminous cement GTS-40 and microcement Micro TSS BTRUO in mass ratio of 3:7, or a mix of aluminous cement GTS-40 and portlandcement PTST 50 in mass ratio of 1:4 is used; 1.0-4.0 wt % of surfactant and as such a mix of emulsifying agent MR-150 is used with calcium alkyl benzosulphonate and emulsifying agent OP-4 in mass ratio of 1:4:9; or a mix of emulsifying agent MR-150 is used with calcium alkyl benzosulphonate, water-repellent agent ABR and Neftenol VKS-N in mass ratio of 4:4:3:3; 9.0-27.0 wt % of diesel fuel; 0.0-0.5 wt % of calcium chloride; 0.0-2.0 wt % of condensed microsilica MK-85 and fresh water - the remaining share.
EFFECT: improved fluidity, reduced water loss, improved strength and durability of cement stone.
SUBSTANCE: invention relates to compositions and methods of wellbore processing. A composition for wellbore cleaning contains, wt %: solvent 10-45; cosolvent 10-40; hydrophilisating surface-active substance 5-10; purifying surface-active substance 5-20; non-ionogenic surface-active substance 1-10; non-ionogenic auxiliary surface-active substance 1-5; emulsifying surface-active substance 1-5; water liquid 1-5.
EFFECT: improvement of cement binding in the annulus space between the case pipe and the rock surface.
14 cl, 4 ex, 4 tbl, 2 dwg
FIELD: oil and gas industry.
SUBSTANCE: invention relates to compositions for wells treatment for use in oil industry. Composition for well treatment containing chemical for well treatment adsorbed using water-insoluble adsorbent, where composition is produced by the well treatment chemical deposition from liquid, at that the well treatment chemical is adsorbed on the water-insoluble adsorbent, and where the well treatment chemical is deposited upon metal salt presence. Well treatment liquid containing the above mentioned composition and carrying liquid. Method of the underground reservoir or wellbore treatment including the above mentioned well treatment liquid injection in the reservoir or wellbore. Method to monitor the well treatment chemical release in the wellbore including the above composition injection in the wellbore. Invention is developed in subclaims.
EFFECT: improved efficiency of treatment in environments with high pH.
38 cl, 3 dwg, 4 ex
FIELD: oil and gas industry.
SUBSTANCE: lightweight plugging material contains cement PTsT-I-100, lightweight - expanded vermiculite, technical salt, chemical agent Crep, at the following ratio in wt %: cement PTsT-I-100 - 84.75; vermiculite - 9.42; Crep - 1.13; NaCl - 4.7. During the cement slurry preparation - expanded vermiculite, technical salt.
EFFECT: exclusion of the hydraulic fracture during wells cementation due to improved parameters of the packing cement, increased strength of cement stone at low and moderate temperatures at early stage of solidification upon simultaneous density reduction of the cement slurry.
SUBSTANCE: reagent for treating drilling mud contains 94-96 wt % ferrochrome lignosulphonate and 4-6 wt % ammonium polyphosphate.
EFFECT: improved dilution properties of the reagent in salt mud, high thermal stability and environmental safety of the reagent.
FIELD: oil and gas industry.
SUBSTANCE: invention mainly relates to methods of hydrocarbons production from hydrocarbons containing reservoirs. Method of treatment of the reservoir containing crude oil including stages when: (a) composition is supplied to extract the hydrocarbons to at least part of the reservoir, at that the composition contains at least two internal olefin sulphonates selected from group comprising internal C15-18-olefin sulphonates, internal C19-23-olefin sulphonates, internal C20-24-olefin sulphonates and internal C24-28-olefin sulphonates, and at least one viscosity decreasing compound, that is isobutyl alcohol, ethoxylated C2-C12-alhohol, 2-butoxyethyl, butyl ether of diethylene glycol or their mixture, and (b) composition is provided with possibility to react with the reservoir hydrocarbons. Invention also relates to method of viscosity decreasing of composition of highly active surface-active substance and composition for hydrocarbons extraction.
EFFECT: result is creation of more effective method of hydrocarbons extraction from crude oil containing reservoir.
14 cl, 2 dwg, 2 tbl, 2 ex
FIELD: oil and gas industry.
SUBSTANCE: method of acid treatment of bottom-hole zone of carbonate reservoir includes injection of the acid composition containing in wt %: inorganic or organic acid, or their mixture 9.0-24.0; zwitterion surface-active substance - oleinamidopropylbetaine 1.0-10.0; hydrophobically-modified polyurethane polymer 0.05-3.0; water - rest, at that the acid composition is injected by single stage or by portions with holding between injections. The acid composition can additionally contain anionic surface-active substance in amount of 0.1-3.0 wt %. The above specified acid composition is injected alternating with injection of hydrochloric acid at 12-24% concentration.
EFFECT: alignment of profile of inflow of the production wells in carbonate reservoirs with non-uniform permeability, creation of new fluid conducting channels through entire perforated thickness of the reservoir, restoration of reservoir characteristics of bottom-hole zone due to its cleaning of mud solid particles.
3 cl, 1 tbl, 16 ex, 4 dwg
FIELD: oil and gas industry.
SUBSTANCE: method of water production zone isolation in a well involves sequential injection of coagulation agent (25% solution of calcium chloride), buffer layer of fresh water, and Givpan acrylic reagent. Additionally, polyethylene terephthalate production waste product, PET with low polymerisation degree, is added to Givpan as a filler in amount of 18-24 wt %.
EFFECT: reduced core permeability.
1 dwg, 7 tbl, 3 ex
SUBSTANCE: lubricating additive for drilling mud, characterised by it is prepared by mixing polyglycol, a floatation agent - oxal, isopropyl alcohol and tall oil at 50-60°C for 2 hours, adding a mixture of a fatty acid methyl ether and diethanolamide of coconut oil, then triethanolamine, raising the temperature to 75-80°C and mixing for 2 hours, adding copper or copper-calcium stearate and oxyethylated nonylphenol, mixing for 1 hour and adding a neutralising agent to pH not lower than 6.5, with the following ratio of components, wt %: polyglycol 27.3, isopropyl alcohol 9.1, floatation agent - oxal 24.3, tall oil 24.3, copper or copper-calcium stearate 3, triethanolamine 4.5-5, fatty acid methyl ether 1-1.5, diethanolamide of coconut oil 1, oxyethylated nonylphenol 3-4.5, neutralising agent 0.5-2.
EFFECT: low friction of drilling mud in metal-metal and metal-filter cake pairs, low pipe and casing wear rate when drilling extended-reach and ultra-extended-reach wells.
2 tbl, 2 ex
FIELD: oil and gas industry.
SUBSTANCE: invention relates to oil-extracting industry, in particular to methods of insulation of inflow of formation waters and lining of the bottomhole zone of formation, and also to the methods for adjustment of profile of acceleration performance of injection wells, to the methods for formation treatment, to the methods for regulation of development of oil fields, and can be used for elimination of leakage of production strings and creation of behind-the-casing filter, for elimination of behind-the-casing gas-manifestations, tubing-casing pressure and inter-formation overflows in behind-the-casing space of a well. The method of insulation of inflow of formation waters and lining of the bottomhole zone of formation includes injection of mix of siliceous substance with high-disperse hydrophobic material. Also the alkaline drain of ShchSPK caprolactam production is injected. The siliceous substance are organic-silicon oil-soluble and water-soluble substances or organic-silicon substances with the following ratio of components, wt %: organic-silicon oil-soluble and water-soluble substances or organic-silicon substances 44.9-77.0; high-disperse hydrophobic materials 0.1-3.0; alkaline drain of caprolactam production 20.0-55.0.
EFFECT: increase of insulation of inflow of waters and lining of the bottomhole zone, increase in the oil-sweeping ability of injected compositions possessing plastic properties unlike a prototype, necessary for more effective elimination of the problem of sand production, elimination of leakage from production strings and creation of the behind-the-casing filter.
7 cl, 4 tbl, 5 ex
SUBSTANCE: method comprises placing a potato on the predecessor, disking, fall-ploughing the soil, spring cultivation, preparation the seed material two weeks before planting by air-thermal heating to pipping of sprouts, cutting ridges, processing of tubers with microbiological preparation and planting tubers, inter-row treatment at finding weeds in the stage of "white string" with the gradual increase in the ridges. The first inter-row treatment is carried out after the emergence of potato sprouts, the subsequent second and third row treatments - with an interval of 10-12 days prior to the closing of potato tops. Protection of potato plants from pests is carried out using microbial agents by spraying the tops during the growing season in dry calm weather, pre-harvesting mechanical removal of the tops and harvesting potatoes is carried out. At that planting tubers is carried out on a smooth surface of soil after deep cultivation to a depth of 20-22 cm in rows with spacing between them of 90 cm to a depth of 4-6 cm with a planting density of 50000 tubers per hectare with simultaneous treatment of tubers and the bottom of the furrow with 5% solution of Phytosporin-M at the rate of its consumption of 10 litres per 1 ton of planting material by spraying with a nozzle. Cutting the ridges is carried out simultaneously with the first inter-row treatment, forming a ridge with the height of 25-30 cm and the width of 17-18 cm on top with the ridge-forming cutter with active working bodies. The second and third inter-row treatments are carried out with a simple ridge-forming cutter. In addition, protection of potato plants from pests is carried out once with 0.01% solution of Phytoverm-M at the rate of its consumption of 500 litres per 1 ha.
EFFECT: method enables to obtain the yield of food potato with high consumer properties against the background of complete elimination of chemical means of plant protection from diseases and pests by environmentally friendly methods and means of weed control, preventing pollution the environment and potato crop with toxic substances.
3 cl, 4 tbl, 2 ex