Universal soil unit |
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IPC classes for russian patent Universal soil unit (RU 2176862):
        
 Device for primary tillage / 2176859
 Cultivator / 2174294
The invention relates to agricultural machinery, in particular to tilled the cultivators
 Tillage tool / 2173509
The invention relates to the agricultural industry and can be used for pre-treatment of soil under different agricultural crops and disking the soil in gardens, vineyards, berry plantations and nurseries
 Accumulation of moisture in the soil in the cultivation of winter wheat under irrigation and device for its implementation / 2172577
The invention relates to agriculture, in particular to the technology of cultivation of winter wheat, mainly under irrigation
 Multihull plow-cultivator / 2171557
The invention relates to agricultural machinery, in particular to soil cultivating implements and sowing machines having sectional suspension working bodies
 A device for removing non-tradable parts of licorice roots / 2168881
The invention relates to the agricultural industry, in particular to a device for the preparation of arrays with natural (wild) thickets of licorice in the commercial production of the root mass as a source of raw materials for several industries (chemical, pharmaceutical, food, confectionery, tobacco, perfume and other)
 Combined cultivator / 2167507
The invention relates to agricultural machinery, namely, machines for surface and deep subsurface soil
 Tillage tool / 2167506
The invention relates to agriculture and forestry, in particular to instruments for soil for the creation of forest and agricultural crops and device for fire mineralized strips in wet soil
 Universal cultivator / 2165133
The invention relates to agricultural machinery, namely, machines for surface and deep subsurface soil
 Combined tillage machine / 2161390
The invention relates to agricultural machinery, namely, machines for soil cultivation, and can be applied in the subsurface tillage
 Method and apparatus for erosion-preventive autumn tillage of soil / 2244391
Method involves shallow plowing, deep basic tillage and surface tillage (cultivation) of soil by cutting furrows; after harvesting of cereals, performing simultaneously shallow plowing, surface tillage of soil to depth of up to 16 cm, crushing of soil lumps, compacting, leveling and mulching of soil top layer; in September, providing deep tillage of soil on fields arranged on slopes with gradient exceeding 5 deg while forming vertical slits to depth of 40 cm and inclined slits; simultaneously with slitting procedure, forming water-accumulating vessels, holes and intermittent furrows. Apparatus has hitch, carrier wheels, bearing system and replaceable working tools in the form of disk batteries, flat narrow hoes, rippers with chisel, ring-and-serrated roller, and leveling drum. Blades of leveling drum are arranged at an angle α=30 deg relative to drum axis.
 Method for layer-by-layer combined tillage of soil / 2246812
Method involves deep mellowing, disking and rotavation of surface layer by combining local deep mellowing of soil to 25-32 cm depth and disking by semi-helical mellowing by means of out-of-phase spherical half-disks of intermediate mid layer disposed at 14-32 cm depth and rotavation of upper layer by means of L-shaped knives to 8-12 cm depth, said processes being effectuated in single cycle. Disking is provided by shifting of layer under process at an angle of attack in direction opposite to direction of backward motion of unit by means of one "from the right to the left" type half disk and backward motion by means of other "from the left to the right" type half disk from mid portion of full width of paired half disks. Deep mellowing is provided along longitudinal axis of symmetry of tractor in front of one pair of paired half disks, which is united with L-shaped cutter knives, and along passage tracks of tractor propeller before batteries of two pairs of paired out-of-phase half disks.
 Combined tillage tool / 2247477
Combined tillage tool has frame equipped with transport and carrier wheels and composed of central and side sections connected with one another through mechanism providing transfer from operating position to transport position and vice versa. Working tools are mounted in succession on frame, said tools are A-hoes, paired disk-type levelers and spiral-rod multithread paired front and rear rollers. Front rollers are pivotally connected with frame central and side sections for adjustment of their position in vertical plane. Rear rollers are pivotally connected with front roller bars and spring-loaded. Combined tool of such construction allows soil to be prepared for sowing of cereal crops.
 Method and working tool for improving natural licorice undergrowth / 2247478
Method involves mowing and grinding licorice vegetative buds and accompanying plants in association of low-productivity licorice undergrowth by means of haying machines to produce cuttings; while mowing, uniformly distributing ground mass over surface of mown strip; providing marker lines and placing planting material in narrow strips at predetermined spacing, with high-quality cuttings of 4-5 years licorice rootages of 12-18 mm diameter and 18-25 cm length being used as planting material; mellowing strips and cutting inclined slits by means of tillage tool; during advancement of machine, moving planting material into inclined slits; simultaneously with planting of cuttings, providing grooves for receiving of mineral fertilizer in surface of inclined wall of slit by means of slitter tine equipped with tiered cutters made in the form of rectangular parallelepipeds; placing nitrogenous fertilizer at norm of 0.2-0.6 kg/running meter in upper tier and phosphorous fertilizer at norm of 1.3-1.8 kg/running meter in middle tier; introducing into lower layer potash fertilizer at norm of 0.8-1.6 kg/running meter for development of plants at second and third years of life; after introducing of mineral fertilizer and placing of cuttings, compacting mellowed strips above inclined slits by means of ring-lug roller sections. Nozzle of pneumatic pipeline is arranged above each cutter. Each pneumatic pipeline is individually connected with seeding unit for withdrawal from fertilizer box of nitrogenous, phosphorous or potash fertilizer. Seeding units are kinematically connected with supporting wheel. Each pneumatic pipeline of tine-cutter is connected with pressure cavity of high-pressure fan equipped with hydraulic drive.
 Combined tillage machine / 2248684
Tillage machine has frame, rake-type grid adapted for distributing straw over field in windrow spacings. Supporting-driving roller is arranged behind rake-type grid and is adapted for cutting part of straw by means of spines and for deepening cut straw into soil to plowing depth. Upon exit from under roller, straw is ground and mixed with soil. Rotavation drum knives provide for mellowing of soil behind roller. During operation with wet soil, roller spines and rotavation drum knives are mutually cleaned since said knives are positioned between said spines. Roller spines are made in the form of triangles whose one side is oriented in radial direction and other side is extending tangentially to roller circumference.
 Combined tillage tool for basic tillage of solonetz soil / 2248685
Tillage tool has frame, share, tiered rotavation drums disposed behind share and equipped with knives, drive mechanism made in the form of reducer and adapted for driving of rotavation drums, and seeding unit. Lower part of reducer is deepened into soil together with rotavation drums, which are adapted for rotation in opposite directions. Rotavation drums are arranged in spaced relation with respect to one another, rotate at equal angular speeds and have unequal diameters, with total value of diameters exceeding thickness of soil layer under tillage process. Share is positioned in front of rotavation drums and is deepened to depth equal to half the thickness of soil layer under tillage process. Gas distributing device disposed immediately behind share is connected through filter with exhaust pipe of tractor engine. Ratio of rotavation drum diameters, distance between axes of rotation of rotavation drums and angular offset are set in accordance with respective dependence.
 Method and apparatus for soil recultivation during extraction of raw licorice material on natural brush of floodplain or steep ecotype licorice / 2252524
Method involves compacting soil and imparting rough surface thereto during licorice postharvest period; cutting into agronomically valuable fractions of large lumps and soil aggregates while continuously advancing on strip surface and on slopes in the vicinity of ditch; moving soil therefrom into mid portion of ditch during strip soil compaction and forming groove-type drain with water-distributing slot along its axis; during extraction of licorice raw material, grinding 3-7% of root mass into 10-25 cm long pieces with one-five dormant auxiliary buds and leaving in mid portion of layer of strip to be harvested. Machine for extraction of licorice roots has frame, carrier wheels and undercutting device mounted on H-shaped bar and coupled to frame for automatic displacement into transport position. Drive members are disposed in longitudinal beams of H-shaped bar, which is additionally fixed on frame through variable length tie-rods. Machine is further equipped with toothed rotor driven from tractor. At least one of teeth located on mid portion of rotor is provided with replaceable knife, which is arranged on peripheral part of tooth, is made of inversion type and is provided with blade. Ratio of blade and rotor lengths is within the range of (0.03-0.07):1. Knife is mounted at tooth end by means of shaft and cut-off pin.
 Tillage tool / 2256312
Tillage tool has hitch tongue, frame, carrier wheels, levelers, two-raw covering rollers, mechanism for turning of transport wheels, and frame folding device. Transport wheel turning mechanism has hydraulic cylinder fixed on rotary bracket with adjustable thrust and connected with wheel crank shaft. Crank shaft is coupled to double-armed lever through bar, intermediate lever and tie-rod of adjustable length. Double-armed lever is coupled to hitch tongue through bar. Frame folding device is composed of hydraulic cylinder, lever and bar of variable length. The latter is connected through elongated slot to side section of frame.
 Apparatus for hilling of tilled crops / 2257701
Apparatus has wheeled tractor and cultivator-hiller connected to tractor. Hiller has hitch, wheeled frame and sections provided with wheels and working tools and attached to frame. Tractor has synchronous drive for power shaft. Transmission mechanism mounted on frame is adapted for transmitting torque from power shaft to sections wheels. Transmission ratio of transmission mechanism complies with dependence w1/w2=d2/d1, where w1 is angular velocity of tractor drive wheels; w2 is angular velocity of sections wheels; d1 is rolling diameter of tractor drive wheels; d2 is rolling diameter of sections wheels. Sections wheels are equipped with blades defining double-sided angle with plane extending through blade base tangential to section wheel, and disks dividing blades into two in vertical plane. During advancement of apparatus, reactive force is applied to blades by soil in direction of advancement of apparatus, said force forming motive force on sections wheels, which is transmitted to hitch. Such construction reduces resistance of soil to advancement of apparatus owing to transverse dividing of soil by means of blades and dividing of soil along spacing by means of disk. The result is that draft of apparatus is reduced to widen capabilities of pull-type tractors of class 0.9 or lower class on combining of said tractors with sectioned cultivator-hiller.
 Combined tillage tool / 2259698
Combined tillage tool has front and rear modules with batteries of spherical and needle-type disks longitudinally arranged in pairs on pivotal three-sectioned frames. Needle-type disks are mounted on rear module. Frame module connection is formed as pivotal spherical joint adjustable in vertical plane. Flat hoes are staggered behind spherical disks in three rows, with minimal admissible distance between disk battery and flat hoe being determined from equation:
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(57) Abstract: The invention relates to agricultural machinery, in particular to machines that perform multiple farming operations in one pass. Universal soil cultivating machine consists of a frame made in the form of a beam, which is perpendicular to its longitudinal axis installed (2n+1), where n=1, 2..., leashes can move along the beam. Even the leads are installed with the possibility of vertical movement bunk rippers, made in the form of a rack with curved pointed in the direction of the unit end. Rack the Ripper side, reverse the direction of travel of the unit, installed plastoria paw can move her height and angle of attack. For bunk rippers installed kuchnicki with possibility of vertical displacement and rotation in the longitudinal-vertical plane of the unit. Odd leashes established working bodies can move them along the leash. Odd leashes made spring-loaded and mounted on the frame by means of brackets can be rotated in the longitudinal-vertical plane. Odd leashes ustanovlenym to provide a comprehensive resource-saving technology of processing of various soils under different agricultural crops. 3 C.p. f-crystals, 10 ill. The invention relates to agricultural machinery, in particular to machines that perform multiple farming operations in one pass. Known universal agricultural unit (U.S. Pat. RF N 1727578, class A 01 B 49/00, 1990), comprising a platform mounted on the screw drums located in the longitudinal plane at the rear auger drums fixed tillage attachments with otvalnuyu surface. This agricultural unit does not provide for the proper handling heavy and excessively wet soils because of the lack of employment agencies to conduct deep loosening or selevinia for loosening pompholyx layers of the soil and destruction plunger soles. In addition, the unit is not able to work on the littered stones soils due to damage and clogging them screw drums. Known units tillage universal APU-3.5 and APU-3,5-01 (New agricultural machinery. Directory, Informarte, M., 1998, S. 41), containing mounted on a frame with supporting wheels paws and disk partition and intended for saving complex processing rasulevich works: for winter, spring and pokonya crops and in return spring perepiski. The presence of a single Ripper paws makes the machine unreliable in heavy and waterlogged soils, and on soils littered with stones because of the malfunction of their disk partitions and broken legs because of serving the construction paws in the direction of travel of the unit. In addition, the unit may not be used for preparation of soil even partially clogged perennial rhizomatous weeds and vegetable crops, for example potatoes, due to the lack of working bodies for this purpose. Known combined unit mounted KAO-2 (New agricultural machinery. Directory, Informarte, M., 1998, S. 21, prototype), containing frame with the attached bunk rippers with pastoriusa paw, a supporting wheel and suspension for the working bodies of the equalizer and the sealing plate. The unit is primarily subsurface and surface treatment of various soils. The presence of a stationary working bodies is not possible to make the machine versatile - suitable for soil preparation not only for grain, pomocnych crops, and vegetable crops, particularly potatoes. Width of this machine traccia Ripper with pastoriusa paw, rigidly installed on it, do not allows you to adjust the depth and intensity of tillage of the soil, therefore the energy consumption for processing light soils are too great, which does not allow for saving a comprehensive treatment of a wide variety of soils. The problem solved by this invention is the provision of resource-saving integrated processing of different soils under various agricultural crops. The problem is solved by performing in universal tillage unit containing a frame with supporting wheels bunk rippers with pastoriusa paw, suspension for installation of the working bodies, frames in the form of a beam, which is perpendicular to its axis set (2n + 1), where n = 1, 2..., pendants in the form of leads can move along the beam, and even leashes installed with the possibility of vertical movement bunk rippers, made in the form of a rack with a pointed curved along the propulsion unit end and installed it from the side, reverse the direction of travel of the unit, pastoriusa paw can move it along the height of the rack and change the angle of attack, and working bodies with moldboard surface is through the plane of the Assembly, odd leashes - working bodies can move them along the leash, and odd leashes made spring-loaded and mounted on the frame by means of brackets can be rotated in the longitudinal-vertical plane, in addition, odd leashes made even longer, the frame is in the form of a hollow beam having a square cross-section, expanded around its longitudinal axis, and hour bunk Ripper equipped with a Lancet paw installed on its end and aimed in the direction of travel of the unit. Performing a frame in the form of a hollow beam having a square cross-section, expanded around its longitudinal axis, allows not only to facilitate the overall design of the unit and make it hard, but also very simple in construction to solve many problems, installing on the frame leashes to accommodate the various working bodies perpendicular to the longitudinal axis of the beam can travel along it, namely:- increase (change) width by moving the leads on the frame, setting the desired distance between the working bodies, according to the specific tillage, and therefore, optimal use of tractor pulling force; the second culture by exceptions or additions to the scheme of arrangement or other working bodies, that will ultimately provide resource comprehensive treatment of a wide variety of soils, including heavy, dry, excessively wet, swollen, clogged stones in the period of field work: for winter, spring and pokonya crops, plowing, in addition, performs cutting ridges and crests under the crop stubble and posleprodazhnoy processing of potatoes and other Number of leads equal to (2n = 1), where n = 1, 2..., a necessary condition for most tillage methods, in particular the condition under which will cover all feasible options declared unit. The possibility of installation on leashes various working bodies makes the machine versatile. Rational scheme of arrangement on the frame to this: even on leash set bunk rippers, followed by the working bodies with moldboard surface, on the odd - working bodies for the implementation of specific tillage. Performing odd leashes longer even a necessary condition for full preparation of various soils for sowing in one pass of the machine. Design bunk Ripper provides the ability to adjust the installation height, which allows ISM is egco included in the soil and ensures reliable operation of the unit (without damage) on heavy soils. Installation pastoriusa paws in the front side, reverse the direction of movement of the unit and protects it from damage on the rocky soil, and the ability to adjust the setting pastoriusa feet on the stand height and angle of her attack ensures a processing mode different soils, characterized respectively by the depth and intensity that ultimately provides a comprehensive resource tillage. The move leads to installation of the working bodies in the longitudinal-vertical plane of the unit ensures reliable operation of the plant on the littered stones soils. The ability to move the working bodies along a leash that has a specific working body, allows you to build a design that will cause changes in the angle of attack of the unit as a whole, which will allow you to change the intensity of the tilling of soil, depending on its species, that is necessary to ensure resource-saving technologies of processing of various soils. This invention is illustrated by drawings. In Fig. 1 shows the universal soil unit, General view; Fig. 2 - scheme of work organisation is ASS="ptx2"> Universal soil unit consists of a frame 1, is a hollow beam having a cross section of a square, rotated around the longitudinal axis of the beam. This frame design facilitates overall design of the unit and makes it hard. Perpendicular to the longitudinal axis of the beam 1 is set to the leads 2 and 3 to accommodate them accordingly working bodies 4 (cutter, ice skating, Hiller and others) and bunk rippers, made in the form of a rack 5 with a pointed curved in the direction of the unit end. On the rack 5 from the side opposite the direction of travel of the unit, installed plastoria paw 6 can move her height 5 hours and change of angle of attack. Hour 5 has the possibility of vertical movement of the leash 3. In addition, it can be equipped with a Lancet paw 8, which is mounted on its end during movement of the unit to create a deep rip "pocket" in heavy soil. For a bunk Ripper on a leash 3 is installed in the bracket 7 Hiller or other working body with a moldboard surface can move its height relative to the leash 3, and rotation in the longitudinal-vertical plane of the unit is required the ATA on zakamennih soils, leashes 2 mounted on the frame 1 by means of a bracket 9, which is fixed on the frame (beam) 1 can move it along the longitudinal axis of the beam 1 and the leads 2 - with the possibility of rotation in the longitudinal-vertical plane of the unit. Working bodies set on leads 2 can move along leashes, asking them (working bodies 4) specific location on leads 2 (Fig. 2 shows dashed lines), you can change the angle of attack of the unit as a whole, which allows matching the soil type, to adjust the intensity of its processing, thereby providing a resource-saving technology of tillage. Leashes 2 is made longer than the leads 3 is a necessary condition for full preparation of soil for sowing in one pass. To regulate the depth of tillage, depending on the mode of processing are supporting wheels 10 mounted on the frame 1. Universal soil unit operates as follows. First of all, depending on the species of the treated soil, and hence the specific technology of its processing, tillage unit equipped with a certain set of work on the selected tillage. Necessary adjustment of the working bodies of the height of installation (deep tillage), set the desired angle of attack pastoriusa legs 6 and other Consider specific examples of universal tillage unit. 1. Meleanie (Fig. 3). To prepare the unit for operation includes the following operations: on the beam 1 by means of leads 3 set 5 hours. Certain height of the rack 5 in the leash 3 specifies the depth of the crack. Set the distance between the leads 3, choose their number. Not taking part in the work of the unit leashes 2 is removed from the horizontal (working) plane by turning them on some angle in the longitudinal-vertical plane of the unit and is fixed by a screw mechanism. The unit is attached to the tractor. The unit works in the following way. Hours 5 under the action of the weight of the unit pointed end is fixed in the soil and when moving the unit left in her slit at the specified depth and at a given distance from each other. Meleanie if necessary, may be carried out by the steps. 2. Deep loosening hard soil (Fig. 4). Before avleat 5 hours. At the end of the bar 5 in the direction of travel of the unit to create a deep rip "pocket" in heavy soil install hoe 8. Set the distance between the leads 3, choose their number. Not participating in the work of the unit leashes 2 is removed from the working plane by turning them on some angle in the longitudinal-vertical plane of the unit and is fixed by a screw mechanism. The unit is attached to the tractor. Operating units as follows. Rack 5 with Lancet paw 8 under the action of the weight of the unit is fixed in the soil and leave it promihlennii zone "pockets" at the specified depth and at a given distance from each other. 3. The main subsurface soil treatment (Fig. 5). To prepare the unit for operation: on the beam 1 by means of leads 3 sets of bunk rippers, including rack with 5 pastoriusa paw 6. Setting the angle of attack of 6 feet, adjust the intensity of loosening the soil, and the position of the legs 6 in the rack 5 in height specify the depth of the treated layer. Not participating in the work of the Assembly working bodies are removed from the working plane. The unit works in the following way. When ditocco to a predetermined depth with a given intensity. 4. The main subsurface soil treatment with meleanie or deep tillage (Fig. 6). To prepare the unit for operation: on the beam 1 by means of leads 3 set 5 hours with pokorivshij legs 6 in it at a given altitude. At the end of the bar 5 can be installed hoe 8 for the formation of "pockets" - deep soft soil layers in Fig. 6 is not shown. The total depth of the soil is governed by the height of the supporting wheels 10 and the location of the rack 5 in the leash 3. Not participating in the work of the Assembly working bodies are removed from the working plane of the machine. The unit works in the following way. Using ploskorezy feet 6 soil richlite with a given intensity to a predetermined depth. Under the loose layer of soil hour 5 forms a gap with the necessary depth, and when installed on the end of the bar Lancet 5 feet 8 are formed deep loosened "pockets". 5. Primary tillage and seedbed in one pass of the unit (Fig. 7). To prepare the unit for operation: on the beam 1 by means of leads 3 set 5 hours with pokorivshij legs 6. Necessary adjustment. In the operating position set the basis of specific tillage. The unit works in the following way. When moving the machine under the influence of legs 6 soil cut, lifted and richlite to a predetermined depth and with a given intensity, and going after them working bodies (cutter, ice skating, equalizer, chopper, Hiller and others) depending on cultivated crops, prepare the soil under a given technology of cultivation of a specific crop. 6. Primary tillage to prepare it for planting potatoes, i.e., the cutting ridges or ridges (Fig. 8)). To prepare the unit for primary tillage on p. 3 added the following: on the beam 1 by means of leads 2 sets kuchnicki or disk openers, the location of which is governed by the arrangement of leads 2 on the beam 1 depending on the desired result, and kuchnicki have so that the stand 5 and the middle pastoriusa legs 6 is formed in the center of the ridge or ridges, so the crest or ridge is formed only of loose soil, and the crack is under the middle of the crest or ridge. The unit works in the following way. Installed kuchnicki or disk openers on racks 4 are fitted in the loosened pokorivshij feet 6 soil, once the have loose pockets required depth directly under the ridge or crest. 7. Treatment of potato ridges or crests (Fig. 9). To prepare the unit for operation: on the beam 1 by means of leads 2 sets or kuchnicki or disk openers, or mesh harrow or different bits, while the stand 5 to 6 feet on leads 3 are removed from the working plane. The unit works in the following way. Established working bodies, affecting the aisle, the slopes and the top of the ridge or ridges, loosen them and destroy the weeds. 8. Deep subsurface (main) and small (pre) treatment of soil with the formation of estuarine soil surface (Fig. 10). When preparing the unit for operation to complete treatment of the soil with the formation of estuarine its surface for sowing cereals, legumes and vegetable crops on drained temporarily waterlogged lands in one pass of the unit under item 5 added the following operations: for bunk rippers (5 hours with pokorivshij legs 6 and 8) in the bracket 7 install kuchnicki or other working bodies having otvalnuyu surface, depending on the technology of sowing cultivated crops (sowing on ridges or ridges) and soil hydrologists the other), and behind them on leads 2 are working bodies (continuous passive cutter or other similar grinders, smoothing or rotary baronci, alignment)) for the preparation of the seed layer of the soil. The unit works in the following way, Installed in the bracket 7 kuchnicki and other working bodies crash into the loosened soil, forming ridges or ridge of a given width and height, and going after okucnicama working bodies (continuous passive cutters, harrows and other) processes the soil surface, breaking stones, destroy vegetative weeds, level and somewhat condense the top of the crests and ridges, giving them a trapezoidal shape. Declared tillage Assembly allows for one pass fully prepare the ground for the above technologies for planting crops on the scallops, eliminating the need to purchase existing for this purpose machines. The foregoing examples of universal tillage unit shows the possibility of carrying out the Assembly of several farming operations in one pass, while ensuring resource comprehensive treatment of soil under winter wheat, Jarov is rties. In VNIIMS manufactured and tested a sample of the declared unit, which perfectly showed themselves in the work. 1. Universal soil unit containing a frame with supporting wheels bunk rippers with pastoriusa paw, suspension for installation of the working bodies, characterized in that the frame is made in the form of a beam, which is perpendicular to its longitudinal axis installed (2n+1), where n=1,2..., pendants in the form of leads can move along the beam, and, even on leashes installed with the possibility of vertical movement bunk rippers, made in the form of a rack with curved pointed in the direction of the end unit and installed it from the side, reverse the direction of travel of the unit, pastoriusa paw can move it along the height of the rack and change the angle of attack, and working bodies with moldboard surface, installed over the bunk rippers with possibility of vertical movement and rotation in the longitudinal-vertical plane of the unit, on odd leashes - working bodies can move them along the leash, and odd leashes made spring-loaded and mounted on the frame by means of brackets is even longer. 2. Universal soil unit p. 1, characterized in that the frame is made in the form of a hollow beam having a cross section of square deployed around its longitudinal axis. 3. Universal soil unit p. 1, characterized in that hour bunk Ripper equipped with a Lancet paw installed on its end and aimed in the direction of travel of the unit. 4. Universal soil unit p. 1, characterized in that the working body with a moldboard surface made in the form of potatoes.
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