48results about How to "Moisture retention effect is good" patented technology

The invention relates to an agricultural liquid ground covering membrane, which is composed of the following components: 20-25wt% of lignin sulfonate, 5-10wt% of modified starch, 2-3wt% of chitin; 3-5wt% of gelatin; 1-2wt% of surfactant; 0.05-0.3 of cross-linker, and 55-65wt% of water, wherein, sodium dodecylbenzenesulfonate is the surfactant optimum; N,N-methylenebisacrylamide is the cross-linker optimum.

The invention discloses a rotary plow, which consists of a tractor trailed moldboard plow. A rotary plow is arranged directly in front of each plow moldboard of the tractor trailed moldboard plow respectively; a rotary blade of the rotary plow is an L-shaped unidirectional soil-throwing rotary blade; the soil-throwing direction of the rotary plow is the same as the soil-turning direction of the plow moldboard; the rotary width of the rotary plow is the same as the soil-turning width of the plow moldboard; the rotary depth of the rotary plow is smaller than the soil-turning depth of the plow moldboard; a power source of the rotary plow is a gearbox arranged on the upper part of the plow body; and an input shaft of the gearbox is connected with a tail shaft of the tractor. The rotary plow has the advantages that: fertilizers can be uniformly mixed with soil and are deeply embedded in the ground through front rotary tillage and rear plowing, the soil is loose and soft, moisture preservation is good, the rate of emergence is high, and the yield is high; in addition, the rotary plow saves oil by 50 percent compared with the common tractor trailed moldboard plow.

The invention relates to the field of agricultural liquid mulching films, and discloses a black liquid fertilizer mulching film and a method for preparing the same.The black liquid fertilizer mulching film comprises asphalt, seaweed concentrated liquid, polyvinyl alcohol, carboxymethyl celluloses, silk protein powder, oxygen producers, inorganic fertilizer particles, alkyl diamine, tween and water.The method includes heating the asphalt until the temperature of the asphalt reaches 150-190 DEG C and stirring the asphalt; adding the seaweed concentrated liquid, the polyvinyl alcohol, the carboxymethyl celluloses, the silk protein powder, the oxygen producers, the inorganic fertilizer particles, the alkyl diamine and the tween into the water, uniformly stirring the seaweed concentrated liquid, the polyvinyl alcohol, the carboxymethyl celluloses, the silk protein powder, the oxygen producers, the inorganic fertilizer particles, the alkyl diamine and the tween and heating the seaweed concentrated liquid, the polyvinyl alcohol, the carboxymethyl celluloses, the silk protein powder, the oxygen producers, the inorganic fertilizer particles, the alkyl diamine and the tween until the temperatures of the seaweed concentrated liquid, the polyvinyl alcohol, the carboxymethyl celluloses, the silk protein powder, the oxygen producers, the inorganic fertilizer particles, the alkyl diamine and the tween reach 45-65 DEG C; uniformly mixing materials prepared at the steps 1) and 2) with one another and then grinding the materials to obtain the black liquid fertilizer mulching film.The black liquid fertilizer mulching film and the method have the advantages that excellent film-forming effects can be realized by the black liquid fertilizer mulching film on earth surfaces after the black liquid fertilizer mulching film is used, soil structures can be improved, outstanding water retention, heat preservation and soil moisture preservation effects can be realized, and the black liquid fertilizer mulching film is easy to degrade and has functions of increasing fertilizers and promoting growth of root systems of crops.

The invention provides a double-dibble-six-plants hole-in-hole type corn planting method, wherein two ridges of conventional corn field are changed into a wide ridge, a shallow trench is linearly dug along the axial center line of the wide ridge, and fertilizer is applied into the shallow trench; bilateral sides of the shallow trench are respectively provided with a row of seeding holes; a elongated fertilizing hole is distantly arranged outside each seeding hole of the two rows of seeding holes which are symmetrically arranged at bilateral sides of the shallow trench; two dibbles are symmetrically arranged inside each seeding hole, and three corn seeds are planted in each dibble, and each seeding hole contains six corn plants. The wide ridge and the shallow trench fertilizing reduce losing water and fertilizer, thus the soil moisture conservation effect is good, drought is resisted and water is saved; the double-hole type plantation makes the root system of corns strong and intertwined, therefore the lodging-resistant ability of corns is strong; three corn plants in one dibble are grown into a cluster which is able to receive the dew at night and store the dew in the roots thereof, thereby reducing the evaporating speed of surface water and being more beneficial to the growth of root system; the light and ventilation between ridges can be maintained after widening the ridges, thus increasing the chance of being pollinated, reducing the breeding of pests, ensuring the sunshine amount of plants, creating the best growing environment for corns, and increasing the yield of corn even more.

The degradable soil moisture preserving liquid film material is prepared by using the material including vinyl acetate, hydroxyl butyrate, hydroxyl valerate, modified starch, calcium carbonate and water. It may degraded completely in natural condition. When spread, it forms thin film adhered to soil and the has excellent heat and moisture preserving effect.

The invention relates to the field of agricultural liquid mulch and discloses seaweed liquid-state mulch powder with a weeding function and a using method thereof. The seaweed liquid-state mulch powder is composed of, by mass, 20-40 parts of seaweed extract powder, 3-5 parts of polyvinyl alcohol, 3-5 parts of carboxymethylcellulose, 3-5 parts of silk protein powder, 3-5 parts of oxygen producer and 1-2 parts of weeding particle. The using method includes: mixing substances in the seaweed liquid-state mulch powder proportionally; adding the seaweed liquid-state mulch powder into water with mass of 8-12 times, stirring, and obtaining mulch liquid after being stirred well; spraying the mulch liquid onto the surface of soil. After the seaweed liquid-state mulch powder is used, the surface of the soil has good film forming effect, soil structure can be improved, and the seaweed liquid-state mulch powder has excellent effect on water retention, temperature insulation and moisture preservation, is easy to degrade and has functions of weeding and promoting root system growing of crops.

The invention discloses a waste paper-based mulching film and a preparation method thereof and belongs to the technical field of agricultural mulching film preparation. The preparation method comprises carrying out one-step de-inking and re-pulping on a rosin-based surfactant and hydrogen peroxide, mixing rosin ester, humic acid, vinasse and waste paper pulp, and preparing waste paper-based mulching films with different thickness values through a paper making method. The preparation method has simple processes, realizes a low cost, effectively utilizes the waste paper resource, and can prepareagricultural mulching films with different biodegradation rates through simple change of a raw material ratio. The degraded components provide nutrients for the growth of the crops and promote the growth of the crops. The waste paper-based mulching film has good mechanical properties, moisture retention performances and light transmission properties and has wide application prospects.

The invention discloses a rotary plow, which consists of a tractor trailed moldboard plow. A rotary plow is arranged directly in front of each plow moldboard of the tractor trailed moldboard plow respectively; a rotary blade of the rotary plow is an L-shaped unidirectional soil-throwing rotary blade; the soil-throwing direction of the rotary plow is the same as the soil-turning direction of the plow moldboard; the rotary width of the rotary plow is the same as the soil-turning width of the plow moldboard; the rotary depth of the rotary plow is smaller than the soil-turning depth of the plow moldboard; a power source of the rotary plow is a gearbox arranged on the upper part of the plow body; and an input shaft of the gearbox is connected with a tail shaft of the tractor. The rotary plow has the advantages that: fertilizers can be uniformly mixed with soil and are deeply embedded in the ground through front rotary tillage and rear plowing, the soil is loose and soft, moisture preservation is good, the rate of emergence is high, and the yield is high; in addition, the rotary plow saves oil by 50 percent compared with the common tractor trailed moldboard plow.

The invention discloses a technology for controlling and eliminating weeds in an alfalfa field by film-side planting. According to the technology, the coverage of the weeds in the alfalfa field can be effectively controlled, and can be reduced by 21 to 46 percent; in addition, the annual yield of alfalfa hay is greatly increased by 19.8 to 152.6 percent; total yield per hectare in three years is increased by 9,387.6 to 9,438.4kg, and if per ton of alfalfa hay is 2,400, economic benefits per hectare can be increased by 22,530 to 22,652 yuan, and efficiency per hectare is equivalently improved by 1,502 to 1,510 yuan; moreover, the using amount of a weed killer is reduced, pollution to the environment is reduced, and the target of low-environmental consumption production of the alfalfa industry can be effectively promoted.

The invention provides a non-woven degradable fiber mulching film and a preparation method thereof. The non-woven degradable fiber mulching film is prepared by cutting flax straws, rolling the cut flax straws to form loose fibers, then soaking the loose fibers into an adhesive prepared from starch, polyvinyl alcohol, water and an esterification auxiliary agent, taking out the fibers, draining thefibers to obtain composite fibers loaded with the starch and the polyvinyl alcohol, then paving a web on the composite fibers, needling to reinforce the composite fibers to form a fiber film, sprayinga waterproof coating on the surface of the fiber film, and performing flattening and shaping on the fiber film by using a hot roller. The preparation process provided by the invention is simple, widein flax straw source and low cost, simultaneously, the mulching film obtained has better soil moisture conservation effect, and the fiber film can be prevented from being untimely damaged after beingpaved, thereby facilitating the growth of crops, improving the yield of the crops, being capable of being directly ploughed into soil for degradation after being used, and not polluting the soil.

The invention relates to straw cutting, fertilization and seeding agricultural machines, in particular to a straw cutting, fertilization and seeding all-in-one machine. The straw cutting, fertilization and seeding all-in-one machine comprises a straw cutting machine and a seeding machine, a traction rod and an upper hanging rod of the straw cutting machine are connected with a traction shaft and a lifting rod of a tractor respectively, and a power shaft of the straw cutting machine is connected with a gearbox of the tractor. The rear portion of the straw cutting machine is connected with a combined seed and fertilizer drill. Cutters of the straw cutting machine correspond to the longitudinal positions of a fertilization plough leg and a seeding plough leg of the combined seed and fertilizer drill in a front-and-back mode. The machine has the advantages that the straw cutting machine is additionally arranged on the front portion of the seeding machine, two sets of cutters are firstly adopted to cut straw in a reverse-phase alternate mode, and therefore the corn straw can be cut into short sections with proper length conveniently. On the one hand, the nutrition of the straw can be kept; on the other hand, the cut straw in the land is short, and good conditions are created for seeding. In particular, the soil of the land with the straw cut is loose, the fastland soil moisture conservation effect is good, surface air drying of wet land is facilitated, and seeding of crops is facilitated. The fertilization and seeding quality is high.

The invention relates to a sowing machine with functions of subsoiling, fertilizer application as well as furrowing and bed building. The sowing machine comprises a gearbox, a traction rack, an anti-winding mechanism, a zone subsoiling mechanism or a strip-shaped deep and rotary tillage mechanism, a soil loosening and gathering mechanism, a fertilizer application mechanism, a furrowing and bed building mechanism, a sowing mechanism, a vertical positioning mechanism, a compacting mechanism, a pesticide sprayer, a related transmission mechanism and the like, wherein the anti-winding mechanism can effectively prevent the straw winding problem, continuous sowing operation of the machine is guaranteed, the operation efficiency is improved, the problem about in-place burning of straw is solved, and the straw burning phenomenon is eliminated fundamentally; zone subsoiling is environment-friendly and energy-saving, and by means of subsoiling or deep and rotary tillage, plow pans are broken, the water-holding capacity is improved, the surface vegetation coverage is increased, and flowing dust pollution in air is reduced; by means of the furrowing and bed building mechanism, the sowing quality and the thickness of covering soil can be accurately controlled, shallow seeding of wheat can be realized, the problems of seedling weakness, death caused by drought, death caused by freezing, late lodging and the like caused by uneven sowing deepness by means of a traditional sowing machine are solved fundamentally, the seedling emergence rate is greatly increased, and quality seeds are saved.

The invention relates to a method for producing melons rich in organic selenium, which includes the following steps: (1) laying the mixture of gravels and coarse sand on a flat or slightly sloped ground and leveling the mixture for later use; and (2) when sowing the seeds of the melons, excavating the gravels and coarse sand, leaving a small pit, laying soil in the pit, then sowing the seeds, and finally covering the seeds with soil. The gravels laid on the seeds have water and soil conservation function, therefore, the method has superiority in semiarid and arid lands. The melons rich in organic selenium produced through the method have the advantage that the melons have stable quality and are green selenium-rich melons rich in organic selenium which can be above 70%. The selenium is high in safety, has no toxic and side-effects and is easy to be absorbed by human body and the detention period in the body is long, so selenium reserve is easy to build up in the body.

The invention discloses a cultivation method for crop rotation of rapeseed and corns covered by films in a whole process annually. The cultivation method for crop rotation of the rapeseed and corns covered by the films in the whole process annually comprises the following steps: 1) selecting a rapeseed high-yield variety and carrying out seedling culture operation; 2) enhancing rapeseed seedling management and cultivating strong seedlings; 3) applying sufficient base fertilizers, ploughing by a tractor, and irrigating with field water; 4) covering with the films, and piercing the films to plant rapeseed; 5) carrying out field management on the rapeseed and harvesting in good time; 6) cleaning waste straws and rapidly planting the corns in a no-tillage manner at suitable moisture; and 7) carrying out field management on the corns and harvesting in time. One-time film covering is adopted, the films can be used at two seasons, energy is saved and sources are opened, natural resources areutilized fully, temperature is increased, moisture remains and growth is promoted, and the yield and quality of crops are greatly improved.

The present invention provides one kind of fertilizer composition and its production process, and is especially one kind of composite fertilizer with lignin recovered from paper pulp making process as the main fertilizer component and its production process. The lignin produced in papermaking is used as the main fertilizer component and compounded with other fertilizer components to produce synergistic effect. Lignin has the effects of loosening soil, controlling water and preserving soil moisture. During the production, the components are crushed, stoved, oxidized, mixed and pelletized to obtain the fertilizer. The present invention disposes papermaking waste properly and the fertilizer has also pest inhibiting effect.

The invention discloses a subsoiling flat cutter weeding and soil preparation machine, which comprises a suspension frame, a machine frame, an earth wheel, a subsoiling shovel, a transmission mechanism and a weeding and soil preparation machine, wherein the transmission mechanism consists of a transmission shaft, a gearbox, an eccentric shaft, a connecting rod, a swinging arm, a weeding cutter leg and a machine frame, and the weeding and soil preparation mechanism comprises a weeding cutter leg, a weeding flat cutter and a separation grid sieve. The subsoiling and the flat cutter weeding and soil preparation are optimized and combined, the combined operation of subsoiling, weeding and soil preparation is realized through one-step operation, the damage to the soil structure is small through the flat cutter weeding, the soil layer disturbing is small, the operation moisture loss is little, the moisture preservation effect is good, the weeding is overall and thorough, and the weeding effect is good. The grass roots and residue stubbles and roots cut by the weeding flat cutter are separated from the soil and cover the earth surface through the separation grid sieve, the surface layer soil layer structure cannot be damaged, the soil moisture loss is little, the earth surface is smooth after the operation, the earth surface residue stubble coverage rate is high, the effects of weeding and earth surface straw residue stubble coverage maintaining are reached, and the effects of water storage and moisture preservation, sand storm prevention, moisture evaporation reduction and the like are realized.

The invention discloses a pear field-planting method. The pear field-planting method includes: from early March to early April, leveling a field block, excavating field-planting holes of 50cm in length, width and depth according to row spacing of 4-5m and plant spacing of 2-4m, and placing organic fertilizer into the field-planting holes by half depth; backfilling the field-planting holes until being flush with the ground, placing pear seedlings, and earthing up, treading down and watering the pear seedlings; using straw to surround the pear seedlings well, using soil to press the straw, and normally performing other field management. Compared with the prior art, the pear field-planting method has the advantages that during field-planting of the pear seedlings, roots of the pear seedlings are above the ground, so that even if some water accumulates in a pear field, the pear seedlings cannot be drown as long as the water is discharged timely; the pear seedlings after being surrounded by the straw are less prone to being blown down by wind, so that water retention effect is good, and survival rate can reach more than 95%; the pear seedlings are stout in branch and full in flower bud, can flower in the second year or the third year and can fruit in the third year.

The invention discloses a winter wheat null line straw mulching method for water saving and soil moisture conservation and belongs to the technical field of wheat planting. The problems existing in the prior art are overcome. According to the adopted scheme, the winter wheat null line straw mulching method for water saving and soil moisture conservation comprises a winter wheat sowing step that one line is reserved every two lines to serve as a preserved blank belt, the sowing weight in planted wheat lines is 1.3-1.7 times of the normal weight; a straw mulching step that smashed straw is put in the reserved blank belts two weeks before and after a three-leaf and one-core stage of winter wheat, wherein the straw mulching thickness is 2-5 cm. The winter wheat null line straw mulching method can be widely applied to the field of wheat planting.

The sand film bag tree-planting method includes the following steps: digging out turfy soil, drying by airing for one year, pulverizing to obtain the turfy soil powder as sapling culture medium; scooping pit for planting tree, with length of 40 cm, width of 40 cm and depth of 50 cm; placing 3000g of sapling culture medium in a plastic bag, and adding 1200g of water, making the water penetrate into culture medium to obtain the film bag; embedding root of sapling into the culture medium in the film bag, tying up the plastic bag, then placing it in the scooped pit for planting tree, back-filling soil, treading down and earthing up to form an earth protuberance below 20 cm around the root of sapling and forming a ring channel with 10 cm lower than ground surface of collecting rain.

The invention discloses a sand-covering and soil moisture preservation cultivation method for dry land apple trees. The sand-covering and soil moisture preservation cultivation method for dry land apple trees comprises the steps of (1) orchard location selection, (2) fertilizer application, (3) sand laying, (4) water irrigation, (5) other management and (6) sand replacement. The sand-covering and soil moisture preservation cultivation method for dry land apple trees is characterized in that according to sand laying in step (3), enough base fertilizer is applied before sand laying, soil is ploughed as deep as 18-25 cm, soil lumps are crushed, flattened and raked, and a sunscreen net fully covers the soil surface and is tightly attached to the soil surface; after the base fertilizer is cured, processed river sand which is small in soil content and uniform in size is laid and pressed on a black wire net, the thickness of the sand laid within the range of 1.5-2 m of the diameter of each tree trunk is 3-5 cm, and the thickness of the sand laid in the other area is 1.5-2 cm. The sand-covering and soil moisture preservation cultivation method for dry land apple trees improves soil moisture preservation and heat preservation effects through a secondary covering structure, and is better in soil moisture preservation and heat preservation effect compared with an existing sand covering and soil moisture preservation method. Due to the two layers of covering, the probability of freezing injury to the root systems of fruit trees in the overwintering process is reduced, and good economical and social benefits are achieved.

The invention discloses a soil moisture conservation method of passion fruits in a karst dolomite area. The soil moisture conservation method comprises the following operation steps: covering with a black plastic film to conserve moisture from the beginning of December to the end of March; using straw, sawdust and withered grass to cover to conserve moisture from the middle ten days of April to the middle ten days of October; fully irrigating nursery stocks before being covered by the plastic film, the straw, the sawdust and the withered grass; sterilizing and disinfecting the moisture conservation materials through 5% carbendazim or potassium permanganate fluid; cutting the black plastic film into a square shape and forming a round hole in the middle of the black plastic film; enclosing a round shape or a square shape around the nursery stocks when the straw and the withered grass are utilized to cover to conserve moisture, wherein the thickness is 10 to 15cm; enclosing a round shape around the nursery stocks when the sawdust is utilized to cover to conserve moisture, wherein the thickness is 5 to 8cm. By means of the method, long-time irrigation is reduced in a dry period, labor and water resource cost are reduced, the yield can be improved by 30% or above, and revenue is increased.

The invention discloses a three-cutter stubble cutting and straw cutting anti-blocking operation monomer of a no-tillage planter and belongs to agricultural machinery. Left and right straw-breaking driving cutters are fixedly arranged on a power drive shaft oppositely; a stubble-cutting driven cutter rotationally sleeves outside the part between the left and right straw-breaking driving cutters on the power driver shaft; the outer diameter of the stubble-cutting driven cutter is greater than those of the left and right straw-breaking driving cutters; straw-breaking blades of the left and right straw-breaking driving cutters and a stubble-cutting blade of the stubble-cutting driven cutter all are Archimedean spiral lines. The monomer is capable of breaking underground stubbles and cutting off over-ground straws, and has the characteristics of being novel, reasonable and simple in structure, good in stubble-cutting and straw-breaking operation quality, small in ground-breaking amount, high in anti-blocking function, low in power consumption and reliable in use.

The invention belongs to the technical field of oilseed rape transplanting and planting, particularly relates to an oilseed rape transplanting and planting device, and aims to solve the problem that moisture absorption of seedlings is affected due to the fact that softness of soil near roots of the seedlings cannot be guaranteed in the seedling transplanting process in the prior art. According tothe scheme, the oilseed rape transplanting and planting device comprises a base of a disc-shaped structure, a cavity is formed in the base, a first round hole and a second round hole are formed in themiddle of the upper surface and the middle of the lower surface of the base correspondingly, and a first rotating ring of an annular structure is rotationally connected into the interior of the base.Before oilseed rape seedlings need to be transplanted before use, two soil shifting plates are inserted into the positions where seeds are to be transplanted, then the soil shifting plates are pushedtowards the two sides to push underground soil waves to open space, then two handles are held by hand to rotate, the soil compacted underground can be loosened, the roots of the seedlings can absorbwater conveniently, and then the seedlings are placed between the two soil shifting plates.

The invention discloses a deep-fertilization secondary-pressing full-width uniform sowing machine, which relates to the field of agricultural machinery equipment, and adopts the technical scheme that the deep-fertilization secondary-pressing full-width uniform sowing machine comprises a rotary blade, a fertilization unit, a sowing unit and a soil covering unit which are arranged in sequence; the fertilizing unit comprises an upper fertilizer box, the fertilizer box is connected with a plurality of fertilizing pipes, and the lower ends of the fertilizing pipes are provided with fertilizer outlets; a lug is fixedly arranged on one side, facing the rotary blade, of the fertilizing pipe; the seeding unit comprises a seed box located at the upper part, and a spreading assembly and a precision seeding assembly are arranged on the lower side of the seed box; the soil covering unit comprises a main compacting machine and an auxiliary compacting machine which are sequentially arranged, the main compacting machine comprises a roller, the main compacting machine is adjacent to the precision seeding disc, and one side, far away from the main compacting machine, of the auxiliary compacting machine is connected with a hoe. Compared with the prior art, the device has the advantages that a deep fertilization mode is adopted during seeding, the problem that seeds are burnt by chemical fertilizers is effectively avoided, the seeding effect of full-width uniform seeding is achieved through the mode of combining scattered seeding and precise seeding, and a good foundation is laid for dense planting.

A gear rotating crank shaft type half-buckled plough tool comprises a gearbox casing, an end cover and a ploughshare, wherein the end cover is fixed on the gearbox casing; a big gear shaft and a small gear shaft are respectively arranged in the gearbox casing; a big gear is mounted on the big gear shaft; the big gear is supported and positioned through bearings; a small gear is mounted on the small gear shaft; the small gear is meshed with the big gear; the big gear shaft is welded with one end of a crank arm; a ploughshare fixing plate is fixedly welded at the other end of the crank arm; the ploughshare comprises an upper ploughshare board and a lower ploughshare board; the upper ploughshare board and the lower ploughshare board are tightly connected with the ploughshare fixing plate through screw bolts; and a connecting pillar connected with a frame is fixed on the top surface of the gearbox casing. The tool is simple and practical in structure, adopts gears to rotate, drives the half-buckled ploughshare shaft to rotate by 360 degrees; and the half-buckled ploughshare shaft can solve the problem of horizontal direction moving by adopting a crank shaft.

The invention relates to straw cutting, fertilization and seeding agricultural machines, in particular to a straw cutting, fertilization and seeding all-in-one machine. The straw cutting, fertilization and seeding all-in-one machine comprises a straw cutting machine and a seeding machine, a traction rod and an upper hanging rod of the straw cutting machine are connected with a traction shaft and a lifting rod of a tractor respectively, and a power shaft of the straw cutting machine is connected with a gearbox of the tractor. The rear portion of the straw cutting machine is connected with a combined seed and fertilizer drill. Cutters of the straw cutting machine correspond to the longitudinal positions of a fertilization plough leg and a seeding plough leg of the combined seed and fertilizer drill in a front-and-back mode. The machine has the advantages that the straw cutting machine is additionally arranged on the front portion of the seeding machine, two sets of cutters are firstly adopted to cut straw in a reverse-phase alternate mode, and therefore the corn straw can be cut into short sections with proper length conveniently. On the one hand, the nutrition of the straw can be kept; on the other hand, the cut straw in the land is short, and good conditions are created for seeding. In particular, the soil of the land with the straw cut is loose, the fastland soil moisture conservation effect is good, surface air drying of wet land is facilitated, and seeding of crops is facilitated. The fertilization and seeding quality is high.

The invention relates to a method for constructing a yam irrigation mode in sandy land, including yam cultivation investigation, yam ditch irrigation section mode function design, and yam ditch irrigation section optimization. Among them, the work process of yam cultivation technology investigation is the determination of cultivation season, site selection and fertilization, fertilizer and water management, erection and pruning and harvesting; yam ditch irrigation section mode function design According to the geometric programming method, the objective function model is constructed to increase the income, and the construction suitable for sandy land is constructed. The objective function of the geometric planning of furrow irrigation of Chinese yam is solved according to the corresponding constraints. Experiments have proved that the invention has strong functionality, simple, effective, low-cost technology, and significant benefits of increasing income and reducing disasters, and can be widely used in sandy yam planting areas.

The invention discloses a subsoiling flat cutter weeding and soil preparation machine, which comprises a suspension frame, a machine frame, an earth wheel, a subsoiling shovel, a transmission mechanism and a weeding and soil preparation machine, wherein the transmission mechanism consists of a transmission shaft, a gearbox, an eccentric shaft, a connecting rod, a swinging arm, a weeding cutter leg and a machine frame, and the weeding and soil preparation mechanism comprises a weeding cutter leg, a weeding flat cutter and a separation grid sieve. The subsoiling and the flat cutter weeding and soil preparation are optimized and combined, the combined operation of subsoiling, weeding and soil preparation is realized through one-step operation, the damage to the soil structure is small through the flat cutter weeding, the soil layer disturbing is small, the operation moisture loss is little, the moisture preservation effect is good, the weeding is overall and thorough, and the weeding effect is good. The grass roots and residue stubbles and roots cut by the weeding flat cutter are separated from the soil and cover the earth surface through the separation grid sieve, the surface layer soil layer structure cannot be damaged, the soil moisture loss is little, the earth surface is smooth after the operation, the earth surface residue stubble coverage rate is high, the effects of weeding and earth surface straw residue stubble coverage maintaining are reached, and the effects of water storage and moisture preservation, sand storm prevention, moisture evaporation reduction and the like are realized.