RU2817373C2 - Method for preserving soil moisture reserves using supersorbent layer when cultivating perennial grasses on sloping lands - Google Patents

Abstract

FIELD: reclamation of agricultural landscape.

SUBSTANCE: invention relates to the complex land reclamation of the agricultural landscape. In the method, soil is decompressed along the width of the turning strip during narrow-band plowing of drained soils. A layer of supersorbent granules 0.5-1.0 cm thick is sown into the created plow sole at a depth of up to 45 cm using a coulter for multi-level sowing of a mixture of seeds of perennial grasses. Above it, granules of organic fertilizers are applied simultaneously together with a mixture of seeds of perennial grasses at a given reduced depth of 2.0-2.5 cm, with a depth of embedding them in the same vertical plane at different heights with a mixture of seeds of perennial grasses.

EFFECT: method provides accumulation of water reserves during melting of snow and rain in the zone of the water protection strip, a supply of nutrients in the arable soil layer at a sufficiently deep depth with sowing of supersorbent granules, increasing the yield of perennial grasses consisting of a multicomponent mixture of seeds on the area of the reversal strip.

1 cl, 1 dwg

Description

The invention relates to the complex reclamation of agricultural landscapes and can be used for anti-erosion development of sloping lands and their agricultural use, as well as for increasing the stability of canal slopes from the territory of irrigated agriculture and collecting return water for the purpose of their subsequent accumulation in drainage ponds.

Researchers argue that a significant increase in the fertility of the upper soil layers affects the durability of grass stands and increases their yield, which means that the required effective application of fertilizers on grass stands of a given type is much higher than for grain-row crops.

It should be noted that water erosion is divided into planar, which consists in the washing away of soil particles from the surface (arable) layer over large areas, and linear, in the form of erosion of soil to a significant depth with the formation of gullies of different sizes and long ravines. At the same time, linear forms of erosion include washouts that cannot be eliminated with conventional plowing, cultivation and sowing of crops. To eliminate these erosions, soil or subsoil brought from another location is required.

Plane water erosion involves the destruction of particles on the soil surface and their removal through numerous trickle gullies. These gullies, ranging in depth from a few millimeters to several centimeters, remain after the runoff of melt and rainwater. When cultivating the soil, they are smoothed out without changing the overall terrain.

The main cause of water soil erosion is the unsystematic plowing of sloping lands. Soil covered with vegetation is less susceptible to erosion. Vegetation, protecting the soil surface from drops of falling rain, increases the roughness of the surface and slows down the speed of water flow along it.

All types of soil cultivation on slopes should be aimed at weakening the surface runoff of melt and storm water. This is achieved by carrying them across the slope (A.S. SU No. 1297741, A01B 79/00, 1987; SU No. 1429961, A01B 79/00; Patent RU No. 2157604, A01B 79/00, 19999). The great advantage of transverse cultivation in comparison with longitudinal one is proven by almost all scientific research field work: soil washout when cultivating it across a slope is reduced by 2...3 times (Cherkasov G.N. Improvement and use of natural forage lands on the slopes of the Central Black Earth Region. - Kursk : VNIIZPE, 2004.- p. 62).

There is a known method for reducing planar water erosion of soils on slope lands, including plowing the soil in paddocks across the slope with the formation of oval ridges and detachable intermittent furrows - furrows with bridges that retain the flow of surface water (Agricultural hydraulic reclamation / A.A. Bogushevsky, A.I. Golovanov, V.A. Kutergin and others. Edited by E.S. - M.: Kolos, 1981. - p.

There is a known method for constructing a drainage system with narrow-pad plowing of drained soils, which includes laying drainage furrows from local depressions in the relief, pairing them with detachable furrows of narrow-pad plowing and a water intake furrow, the discharge of water from which is carried out into an open channel, while pre-building a near-slope drainage, including laying a deep unloading drain parallel to the open channel at a distance of 2...4 mi from it edge, and the deep unloading drain is made with a discharge part sloping towards the channel, subsequent filling of the unloading drain with a fertile layer of soil and backfilling of the drainage trench with the deep unloading drain placed in it with excavated soil, mixed with the fertile soil layer, and the water intake furrow is placed in the same vertical plane with a deep unloading drain, while water from local depressions along the route of the water intake vertical drain with a surface water collector of a T-shaped nozzle placed in the subarable horizon at a depth from the plow base of at least 0.7 m and placed in a filter bedding (RU Patent No. 2393293, E02B 11/00 dated June 27, 2010). However, this method of system is not effective enough in a continuous area of irrigated agriculture, as noted by the well-known technical solution (Patent RU No. 2618091, E02B 11/00 dated 05/02/2017).

There is a known method for smooth plowing of slopes, including cutting the layer along the horizontals of the slope, turning it around and laying it in its own furrow, while the layer is cut in cross section in the form of part of an ellipse, the major axis of which is inclined from the vertical to the surface of the slope towards its foot or top, with In this case, at the bottom of the furrow, helical grooves are formed at equal distances, as well as unprocessed ridges parallel to the horizontals of the slope, the tops of which are at the level of the plow sole (Patent RU No. 2157604, A01B 79/00, A01B 5/14 dated October 20, 2000). To implement this method on a slope, a specially designed plow with combined working bodies is used, where the formation is turned down or up the slope into its own furrow. This method ensures an increase in water absorption and a reduction in water erosion processes due to the creation of a furrow bottom with helical grooves, as well as the formation of untreated ridges parallel to the slope horizontals, below the plow base layer. Favorable conditions are created for the development of the plant root system. However, the disadvantage is that soil subsidence does not take into account sufficient soil fertility during the accumulation and preservation of a sufficient volume of consumed moisture in the soil for optimal soil moisture on slopes, as well as protecting plants in dry years from the loss of water-soluble fertilizers and their leaching from the soil. And for this we need preparations that are compact, small in size, for example supersorbent granules, which in terms of the volume of the granules themselves can increase due to the melting of snow in the spring, accumulate water in themselves, forming an ice structure, or otherwise “solid water”. Mexican scientists were the first to propose such a technology for the development of Solid Rain (“Solid Water”), which can become indispensable in these conditions.

It should be noted that this can be confirmed by a well-known technical solution (Patent RU No. 257722, C08F 220/56, C08L 3/02, C08L 1/08, C08L 5/08, A61L 15/28, A61L 15/60 dated 02/10/2016 ), in which the creation of a supersorbent method relates to the chemistry of high-molecular compounds, in particular to preparations that have the ability to absorb a sufficient amount of water, and then, as the soil dries, the granules begin to release water to the soil to the desired level of soil moisture and even have an effect on the dissolution of organic granules origin of fertilizers in the topsoil. At the same time, it is environmentally safe for use in agriculture. However, at present there is no comprehensive approach to the development of a technological design scheme when snow is deposited on the fields and it also covers the slopes of ravines and canals, i.e. a lot of it accumulates, so the problem of optimal snow retention during its melting while preserving moisture has not yet been fully resolved.

A link should be made to the publication on the Internet on June 7, 201 - Irrigation, Innovation in agriculture, drought “Solid water” (Site: Save Peart Herbor, Voronezh scientists invented “solid water”. Published 11/16/2015).

“Solid water” is still an indispensable additional preparation for possible use in complex land reclamation and to solve the problem of accumulating water at the required depth. A known coulter for multi-level sowing of seeds and fertilizers is installed on seeders and is used for sowing seeds of both grain and row crops. A coulter for multi-level sowing of seeds and fertilizers is first installed on the frame of a grain or row-crop seeder at a given row spacing. By moving the stand up and down in the seeder bracket, the required depth of stroke of the pointed paw is set (Patent RU No. 2733284, A01C 7/20, A01C 7/06 dated 10/01/2020). We have taken this technical solution as a possible device for solving the problem in the proposed invention in increasing the efficiency of use in planar development of soil erosion on slopes, by preparing a narrow-paddock plowing strip with a coulter before sowing a multicomponent mixture of seeds and granules of organic fertilizers, and at the same time separately granules of supersorbent, where they devices with outlet holes are located from each other at a distance equal to the required difference in depth of embedding both supersorbent granules separately, and together granules of organic fertilizer with grass seeds, and obtaining a good dense standing grass stand, where no one has yet used in practice, while this the operation is carried out in the fall with care for the winter with a sufficient supply of nutrients in the underground organs of plants. At the same time, super agent granules can absorb, along with water, a large amount of useful fertilizers for plant growth, in particular for the growth and development of the root system of a multicomponent mixture of grass seeds.

There are known methods for regulating snow deposition to protect soils from erosion on slopes (Patents: RU No. 2248112, A01C 23/00, A01I 79/02 dated 20.03.2005; No. 2137330, A01B 79/00, A01B 79/02 13/16 dated 20.09. 1999; No. 2744184, A01B 79/02, A01B 13/16 dated 06/15/2020). These methods are considered low-cost, ensuring the prevention of soil washout, promoting additional moisture accumulation. However, the use of these methods will obviously be associated with the climate norm, the predicted value of the norm of water consumption and the availability of water reserves in the proposed supersorbent granules located in the lower (deep) layers of the soil at the required depth incorporation in relation to sowing grass seeds together with fertilizer granules with a reduced sowing depth into the soil, which means that the release of water through the capillaries will be ensured from the bottom up, dissolving the fertilizer granules and their use for the growth and development of plants in the form of a multicomponent mixture of grass seeds, t .e. better growth of the grass root system.

It should be noted that the difference between supersorbent granules is that when water is accumulated and then released into the soil, it has the ability to swell again, absorbing it, which means that during this period it is not necessary to additionally water perennial grasses for a certain time. One filling of the polymer with water can last for a longer growing season. The validity period of the environmentally friendly composition is from 5 to 10 years, and they are capable of absorbing up to 500 liters per 1 kg of supersorbent granules. Supersorbent granules are environmentally friendly, and they are able to retain incoming soluble fertilizers into the soil, and can serve as a fairly positive feed for the development of microorganisms in the soil. Therefore, they are able not only to absorb moisture, but also microelements, and can act as fertilizers. This means allowing the saturation of the fertile soil layer under the protective screen at a given soil depth, which is necessary for the development of a dense root system of grass cover.

This idea did not come immediately, but after considering numerous known methods of anti-erosion drainage of slope lands, ravines, canals, and rivers. In connection with the above analogues, it should also be given (Copyright certificates: SU #1393336 A01B 79/02, 13/16 dated 05/07/1988; No. 1127267, E02B 11/00 dated 07/15/00; No. 1467136, E02 B 11/00, E02F 5/30, A01B 79/00 dated 03/23/1989; No. 1491952, E02B 11/00, A01B 79/00 dated 07/07/1989).

It should be noted that the amount of supersorbent is determined by calculation when growing perennial grasses with a multicomponent mixture for a specific case of soil structure, its composition, the formation of a capillary system, since the supersorbent itself does not allow dense caking at the depth of the soil after receiving water (it swells) and then releases to the soil water gradually, maintaining the water-air regime in the soil, i.e. overall soil aeration improves, which means the ability to absorb not only melting snow, but also rainfall.

Closest to the invention is a method for constructing a drainage system for narrow-paddock plowing of drained soils, including laying drainage furrows in low spots and pairing them with detachable furrows and a water intake furrow located along an open channel, including a coastal water protection strip of turf, with the possibility of discharging into it the allocated from the water field, while between the coastal water protection strip of turf and the water intake furrow, a narrow-paddock plowing headland with a width equal to half the width of the paddock is placed on the loosened cavalier, which is plowed along the open channel in a huddled manner, combining the split and water intake furrows, after which operational loosening of the plowed headland is carried out to a depth of up to 45 cm with the simultaneous application of increased doses of organic fertilizers (Patent RU No. 2385990, E02B 11/00 dated 04/10/2010).

The disadvantage of this method of arrangement is also the insufficient efficiency of operational loosening of the plowed headland even to a depth of 45 cm with the simultaneous application of increased doses of organic fertilizers, which depends on the dynamics of the underlying soils and the dynamics of its changes along the horizons, i.e. from an integrated approach to using, from an environmental point of view, the method of introducing supersorbent granules into the lower layers of the soil, as well as into the upper layers of the soil simultaneously, granules of organic fertilizers and a mixture of grass seeds, while at a depth the supersorbent granules in long-term operation will not be damaged by treatment with the coulter of the device used and other processing equipment, and which are always capable of accumulating a sufficient volume of water, and then in dry weather, when the humidity level around the supersorbent granules decreases below a certain level, these bonds must change with the matrix breaking, and the structure of the liquid changes, which allows it to be released into the soil, those. water-intensive granular supersorbent can be introduced into the soil to the depth of the plunger base with a coulter (RU Patent No. 2733284); a subsoiler and a seed tube are sufficient in such a way that their outlet holes are located from each other at a distance equal to the required difference in embedding depth separately, both supersorbent granules and separately granules of organic fertilizers along with seeds of a multicomponent mixture of herbs. All this allows all elements of fertilizers and seeds to be placed qualitatively in their designated place in the soil in a vertical plane, at different heights, which is very important in the practice of creating species composition per unit area, and increases the density of standing grass in strips in agricultural landscapes, and this in in turn leads to a reduction in the processes of water erosion on slope lands (until now unknown). Consequently, the simultaneous implementation of all operations of loosening the soil, sowing fertilizer granules together with sowing grass seeds, as well as supersorbent granules at a given depth (up to 45 cm), allows us to minimize the number of separate operations (simplify), contributing to frequent soil mixing, and thus reduce evaporation soil moisture from a water-intensive granular supersorbent, which has a positive effect on the dissolution of granules of organic fertilizers and connection with the growth of a multicomponent mixture of grass seeds (each plant has its own phase of development in time from each other in growth), i.e. sufficient for growing grass cover of perennial grasses, so these supersorbent granules can absorb not only water (moisture), but also microelements from soluble fertilizer granules, then giving the moisture to the roots of the plants. At the same time, closing the water cycle on the dry field (strips) of irrigation. In addition, the accumulation of moisture at a depth of up to 45 cm on the headlands will replace several necessary waterings in dry weather for the species composition of the grass stand. This will provide cost savings several times a year. When filling with moisture-intensive material with better air exchange of the root layer of soil of complex terrain, when the turning strips are located below the arable layer and in different directions, and this is very important for filling granular supersorbent (a moisture reserve is created in the soil at a sufficient depth in comparison with known analogues using a layer of crushed supersorbent 2...3 mm (the layer can be 0.5...1.0 cm). In general, this allows you to reduce the loss of nutrients when they are washed out by rainfall, etc. from the arable layer and provide a supply of useful substances in the soil: potassium, phosphorus and nitrogen for subsequent feeding of plants. In field conditions, this is done at the same time.

Thus, the depth of laying (sowing) supersorbent granules will not interfere with the next year (this is important), for plowing, which is carried out at the depth of sowing grass seeds (2.0...2.5 cm), maintaining a layer of granular supersorbent during shallow plowing and tillage of soil with agricultural implements according to the profile of the water protection zone.

The claimed invention is aimed at ensuring the accumulation of a supply of water during melting of snow and rainfall in the water protection strip area, ensuring a supply of nutrients in the arable soil layer at a sufficiently large depth with the sowing of supersorbent granules, as well as separately sowing grass seeds together with granules of organic fertilizers at different heights with a known device of agricultural implements, increasing the yield of perennial grasses consisting of a multicomponent mixture of seeds on the area of the headland.

To achieve the specified technical result in the method of preserving moisture reserves using a layer of supersorbent when cultivating perennial grasses on sloping lands, characterized by the fact that the soil is decompacted along the width of the headland during narrow-paddock plowing of drained soils, into the created plow sole at a depth of 45 cm using a coulter for multi-level sowing of a mixture of perennial grass seeds, a layer of supersorbent granules 0.5-1.0 cm thick is sown, and above it granules of organic fertilizers are simultaneously applied along with a mixture of perennial grass seeds at a given reduced depth of 2.0-2.5 cm, at the depth of their embedding in the same vertical plane at different heights; mixture of perennial grass seeds.

The level analysis carried out by the applicant, including a search through patent and scientific and technical sources of information and identification of sources containing information about analogues of the claimed invention, allowed us to establish that the applicant had not found an analogue characterized by features identical to all essential features of the claimed invention.

To check the invention against the “inventive step” requirement, the applicant conducted an additional search for known solutions in order to identify features that coincide with the features of the claimed invention that are distinctive from the closest analogue, the results of which show that the claimed invention does not follow clearly from the prior art for a specialist, since from the level technology has not revealed the influence of the provided essential features of the claimed invention on the achievement of the technical result.

Consequently, the claimed invention meets the “inventive step” requirement under current legislation.

Distinctive features of the proposed method of preserving the reserve of soil moisture from the above prototype is the location of the decompaction of the soil along the width of the headland during narrow-paddock plowing of drained soils using the method and device in the created plunger sole at depth using a coulter for multi-level sowing of seeds and fertilizers, sown on depth of up to 45 cm with a layer of granules 0.5...1.0 cm thick, and above it granules of organic fertilizers are sown simultaneously along with a mixture of perennial grass seeds at a given reduced depth of 2.0...2.5 cm, at the same time, i.e. the depth of embedding them in the same vertical plane, but at different heights, which means minimizing the number of separate operations, and thus creating a basis for collecting water flow into the depths of permeable soil, preserving it, and then re-using all these fertilizers during the regrowth period grasses, being an obstacle to water erosion and the formation of a durable layer of turf, i.e. sowing seeds of a multicomponent mixture ensures rapid growth while providing a supply of moisture for the root system of plants during the phases of their growth.

It should be noted that first, the creation of a strong filter base of a permeable soil layer vertically has a large supply of absorption when snow melts and rainfall arrives, when supersorbent granules, followed by their swelling and absorption of water and useful substances soluble in it, for example, granules of organic fertilizers , at a positive ambient temperature, they act upward towards the development of the root system of a mixture of seeds of a species composition for growing turf-forming grass according to the phases of their development and normal air exchange.

This is especially important when considering the coastal water protection turf strip with a width of at least one meter and the preservation of the canal slope itself, and the coastal water protection turf strip in the form of a turning strip is equal to half the width of the paddock, i.e. adapted to the technology used by the author, for example, a coulter for multi-level sowing of seeds and fertilizer granules, as well as separately supersorbent granules to a depth of 45 cm, when one unit performs specified operations that promote soil mixing, through which surface water runoff is retained, i.e. . contributes to the preservation of vegetation cover, acting as an obstacle to water erosion.

Thus, the average annual soil loss, weighted average by crop rotation, on the upper edge with a width of at least 1.0 m towards the slope does not exceed the weighted average rate of water planar soil erosion, which can be determined using a well-known empirical formula based on data from field experiments, which takes into account a set mixtures of seeds of the species composition of grasses, granulometric composition and genis of the soil, geographical location and orientation of the slope. In addition, it is necessary to take into account the slope of the slope surface, respectively, the weighted average of crop rotation and slope, for which the area of planar erosion is determined, the rate (rate) of soil formation (mm/year) and the density of the soil skeleton (bulk mass, t/m ³ ). Accordingly, it is necessary to relate the humus content in the coastal water protection strip of turf with a normal, fully developed, not washed away profile to the humus content in the soil of the slope, for which the average long-term rate (rate) of soil formation is specially determined by a known method. Hence, excess surface water on the slope will be associated with the use of the method proposed by the author for preserving soil moisture reserves on slope lands, in particular, along the width of the turning strip with narrow-row plowing of drained soils from the condition of discharging surface water in this area, and what mixture of grass seeds is used on a given area, which means that washouts do not exceed the norms of water planar soil erosion for a given section of the headland.

The invention is illustrated by a drawing showing a method for preserving soil moisture.

The claimed method of preserving soil moisture reserves using a layer of supersorbent when cultivating perennial grasses on sloping lands is a narrow-paddock plowing of drained soils, detachable furrows 1 placed at a distance of the width of the paddock “B” and draining excess water outside the field towards the open channel 2, then sent to the drainage storage pond 3 for subsequent use for irrigation, for example, hay-pasture crop rotation (watering grass), helping to increase their productivity.

Along the open channel 2, the area of which includes a coastal water protection strip of turf 4 with a width of 1 m, there is a water intake furrow 5, the distance of which from the edge 6 of the open channel 2 consists of the width of the coastal water protection strip of turf 4 (1 m) and the width of the turning strip 7, equal to half the width of the paddock is (0.5V) m, and is (1+0.5) m. Detachable furrows 1 through drainage furrows 8 communicate with the water intake furrow 5, or detachable furrows communicate directly with the water intake furrow 1.

Between the water intake furrow 5 and the coastal edge 6, sowing is carried out on the coastal water protection strip 4 and the width of the headland 7 with the incorporation of increased doses of supersorbent granules into the soil, for example, 50 g per 1 m ² , or 0.5...1.0 cm thick , capable of accumulating a certain amount of water (see its properties described above) to a depth of 45 cm and at the same time introducing separate doses of organic fertilizer granules along with a mixture of sowing grasses into the fertile soil layer to a depth of 2.0...2.5 cm with the possibility of gas exchange of turf-forming agents herbs in specific conditions.

This sowing operation is carried out using a well-known coulter device (Patent RU No. 2733284, A01C 7/20, A01C 7/06 dated 10/01/2020), where an increase in the quality of sowing is achieved by installing a subsoiler and a seed duct (see description of the well-known patent) in such a way that their outlet openings are located from each other at a distance equal to the required difference in embedding depth of both supersorbent granules and separately granules of organic fertilizers along with multicomponent grass seeds, in the same vertical plane, but at different heights noted when sowing these nutrients.

It should also be noted that supersorbent granules at a depth of up to 45 cm remain in the soil for 5 to 10 years with a certain fraction, for which it is called a supersorbent for its unique property. The polymer is resistant to temperature changes and is perfectly preserved in the soil for the specified years; non-toxic and safe for plants, animals and humans, i.e. environmentally friendly. The polymer matrix, which forms bonds with its walls, acquiring the so-called “ice” structure and is fixed in the supersorbent, supersorbent granules that absorb surface water partially absorb them and remain for a certain time at the depth of the plow sole, then they will release moisture upward into the soil along capillaries, respectively dissolving granules of organic fertilizers and using the root system of species grass seeds, i.e. specified fertilizers of natural origin. All this provides access for the development of a powerful root system of the species composition of a seed mixture, for example ² : meadow timothy 35%, meadow fescue 20%, perennial ryegrass 20%, tall fescue 10%, festupolium 15% at a consumption rate of 4-5 kg per 100 m ² . In this case, the norms of water planar soil erosion can be determined by obtaining a formula empirically based on data from field experiments (not given), the possible indicators of which are determined for sloping lands.

During the absorption process, although the soil layer settles with the formation of capillary pores, the soil below does not cake, since the very feature of using supersorbent granules in the absorption process is a change in parameters due to swelling with water and the soil is not strongly compacted. In addition, if in the lower layers at the depth of the plow sole (up to 45 cm) there is a certain moisture horizon, then supersorbent granules, on the contrary, in dry weather on the surface of the earth, due to their connection with the construction of the polymer matrix, acquire absorbing ability with the accumulation of fertilizers that can penetrate through capillaries deep into the soil (into its thickness), accumulate in supersorbent granules, as a result of which the loss of nutrients present in the soil in the area, which includes the coastal water protection strip of turf and the width of the turning strip, is reduced, which is necessary for the better development of hay and pasture grasses, and this ensures expanded reproduction of soil fertility, helps preserve vegetation cover and increase the yield of grasses with a good root development system to retain plant soil and secure it in the turning area, as well as the slope + embankment.

The proposed technical solution allows, subject to compliance with basic environmental requirements, to ensure the accumulation of water in the lower layers of the soil, to ensure part of the discharge of water into an open channel after the formation of a stable grass covering, then its accumulation in a drainage pond for reuse for irrigation, and this will reduce the discharge of contaminated substances into river and streams, etc.

Thus, in the spring, with the onset of positive temperatures, the liberation of the soil from snow will begin from the upper part of the slope, where the thickness of the snow cover is the least. Melt water will flow down the slope, falling into the preserved snow on the coastal water protection strip of turf, without yet producing a washout (there is no washout under snow). The snow cover formed in this way in the lowlands will also prevent deep freezing of the soil in the lower part of the slope immediately before the edge of the open channel with the presence of water intake furrows in front of it, which in turn in the spring contributes to greater absorption of melt water and its accumulation by supersorbent granules, and thereby several reducing soil washout, respectively, without exceeding the rate of water planar soil erosion, the weighted average for the given sown sections of grass seeds, when their growth differs from each other in development phases.

Thus, when creating a coastal water protection strip of turf on a leveled cavalier with the placement of a turning strip of narrow-paddock plowing with a known coulter using supersorbent granules, as well as granules of organic fertilizer of natural origin with sowing a mixture of grass seeds along the open channel, between water intake furrows with high-quality sowing of them into the soil in the same vertical plane, but at different heights, and the creation of strips in agricultural landscapes with the maximum possible growth of grasses, significantly reduces the processes of water erosion on slope lands, contributes to the improvement of the phytolandscape situation as a whole, and also increases the reliability of the strengthening and durability of the strengthened turning strips along the canals.

Claims (1)

A method for preserving moisture reserves using a layer of supersorbent when cultivating perennial grasses on sloping lands, characterized by the fact that the soil is decompacted along the width of the headland during narrow-paddock plowing of drained soils into the created plow sole at a depth of up to 45 cm using a coulter for multi-level sowing of a mixture of seeds perennial grasses are sown with a layer of supersorbent granules 0.5-1.0 cm thick, and above it granules of organic fertilizers are simultaneously applied along with a mixture of seeds of perennial grasses at a given reduced depth of 2.0-2.5 cm, with a depth of planting them in one vertical planes at different heights with a mixture of perennial grass seeds.

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