1862 results about "Plastic mulch" patented technology

The invention relates to the technical field of agricultural machinery, in particular to a film mulching method of a multifunctional film mulching machine, the film mulching machine is adjusted to a first film mulching preparation state, and a film mulching device has a first turnover angle relative to the horizontal plane; the film paving machine is adjusted to be in a second film paving preparation state, the film paving device has a second overturning angle relative to the horizontal plane, and the soil covering wheel is arranged on the ground; the film mulching machine is adjusted to a third film mulching preparation state, the soil covering wheel rotates and is inserted into the land on the two sides of the ridge, and the film mulching device has a third overturning angle relative to the horizontal plane; the film mulching machine is adjusted to be in a film mulching operation state, the film mulching machine moves along the ridge land, the film mulching device is kept at a third overturning angle, the ridge land is covered with the plastic film, the soil covering wheel rotates to turn up soil, and the soil falls onto the plastic film to form a film pressing layer; according to the film paving machine, the overturning angle of the film paving device can be adjusted according to the preset ridge height, so that the lifting action of the film paving device is adjusted, the lifting efficiency of the film paving device is improved, and the film paving efficiency of the film paving machine is improved.

The invention discloses an enzymatic hydrolysis lignin PBAT composite material, a degradable film and a preparation method of the degradable film. The enzymatic hydrolysis lignin PBAT composite material comprises 8-45 parts by weight of enzymatic hydrolysis lignin, 55-92 parts by weight of PBAT and 1-10 parts by weight of a plasticizer. Therefore, the enzymatic hydrolysis lignin PBAT composite material meets the complete degradation requirement and is especially suitable for the field of preservative films and mulching films, the enzymatic hydrolysis lignin is wide in source and low in cost as a raw material, the national crop straw utilization rate can be increased, and environmental pollution can be reduced.

The invention belongs to the technical field of agricultural machinery, and particularly discloses a self-propelled mulching film machine with damage detection and automatic repair functions, the mulching film machine comprises a rack, a walking mechanism and an energy mechanism, the walking mechanism is arranged at the bottom of the rack, and the energy mechanism is arranged at the front end of the top of the rack; a film paving / collecting mechanism and a control system are arranged between the walking mechanisms at the bottom of the rack; a visual sensor is arranged on the rear side of the film paving / collecting mechanism on the rack; a soil covering mechanism is arranged on the outer side of the traveling mechanism at the rear end of the rack; the control system is electrically connected with the walking mechanism, the film laying / collecting mechanism and the visual sensor. By the adoption of the self-propelled mulching film machine with the damage detection and automatic repairing functions, the mulching film machine can detect the damage condition of a mulching film in real time in the mulching film laying process, differentiated repairing strategies are automatically adopted according to the damage severity degree, and then intelligent detection and automatic repairing in the mulching film laying process can be achieved; and the operation quality and efficiency are improved.

The invention discloses a farmland mulching film recycling machine capable of effectively separating film stubbles, and relates to the technical field of mulching film recycling machines, the farmland mulching film recycling machine comprises a V-shaped scraping plate, the V-shaped scraping plate is used for conducting scraping type cleaning on soil, stubbles and stones attached to a mulching film, one side of the V-shaped scraping plate is rotationally connected with an adjusting mechanism through a rotating bolt, and the adjusting mechanism is used for adjusting the film stubbles. According to the farmland mulching film recycling machine capable of effectively separating the film stubbles, the V-shaped scraping plate is used for removing soil, the stubbles and stones attached to recycled mulching films in a scraping mode, and the film stubbles can be removed through the V-shaped scraping plate; the situation that a large amount of impurities such as soil, stubbles and stones are often carried on the rolled and recycled mulching film, so that a large amount of impurities are mixed among film rolls which are finally rolled into a roller, and the recycling is influenced is prevented; a V-shaped plastic pad is arranged on the outer side of a V-shaped scraping plate to elastically resist a large amount of lifted soil and stones; the outer side face of the V-shaped scraper is prevented from being impacted by soil and stones for a long time to generate friction damage and be gradually damaged to be difficult to use.

The invention relates to the technical field of soil film mulching machines, and discloses a rice and wheat saline-alkali soil film mulching machine and a using method thereof.The rice and wheat saline-alkali soil film mulching machine comprises a supporting cylinder, symmetrical shells are fixedly connected to the two ends of the supporting cylinder in a penetrating mode, one end of a film roller frame is fixedly connected to the side wall of the middle of each shell, and a traction frame is rotationally installed on a transverse rod of each film roller frame; the device further comprises a supporting frame, a connecting plate at the top of the supporting frame is fixedly installed on the outer wall of the shell, a disc at the bottom of the supporting frame is coaxially and rotationally sleeved with a wheel ring, and a coaxially-arranged gear ring is fixedly installed on the inner wall of the wheel ring. According to the rice and wheat saline-alkali soil film mulching machine and the using method, the two sides and the top of a mulching film can be covered with soil at the same time, the device can automatically compact soil on the two sides after covering the soil, and therefore the fixing effect of the device on the mulching film is improved, meanwhile, the soil collecting mechanism of the device can keep a certain soil collecting amount, and the working efficiency is improved. And the subsequent mulching film soil covering amount is prevented from being too small.

The invention discloses a straw paper mulching film based on thermo-mechanical pulp as well as a green preparation method and application of the straw paper mulching film. The invention belongs to the field of biomass resource utilization. Aiming at the defects in the prior art, the invention provides a green preparation method of a straw paper mulching film based on thermo-mechanical pulp. According to the method, the staged hydrothermal grinding technology is adopted, washing is not needed, the acidic paper pulp is directly obtained, and the technological process is simplified. Meanwhile, the invention innovatively develops a green sizing agent taking chitosan as a main material. The sizing agent can be directly fused with acidic paper pulp, and acid and alkali do not need to be additionally added for adjusting the pH value. The dry tensile index of the straw paper mulching film is larger than or equal to 15 N.m / g, the wet tensile index is larger than or equal to 5 N.m / g, the burst index is larger than or equal to 3.5 kPa.m < 2 > / g, the contact angle is larger than or equal to 105 degrees, and the 2-hour water absorption rate is smaller than or equal to 50%.

The invention belongs to the technical field of agronomy experiment devices, and particularly relates to a mulch-mulched soil environment simulation device which comprises a closed space, an air inlet and an air outlet. The mulching film sample is arranged in the closed space; the top of the soil simulation assembly is in contact with the bottom of the mulching film sample, and the soil simulation assembly is used for simulating a soil environment covered by the bottom of the mulching film sample; the natural environment simulation assembly is communicated with the closed space, the natural environment simulation assembly is used for simulating environmental conditions of the top of the mulching film sample, and the environmental conditions comprise temperature and humidity parameters, illumination parameters, rainfall parameters and wind speed parameters. According to the invention, researchers can accurately and controllably carry out experiments indoors, simulate soil states under different mulching film materials and environmental conditions, and deeply understand the influence of mulching film mulching on key parameters such as soil moisture, temperature and gas exchange. Scientific basis is provided for agricultural production and crop management, and sustainable development of agriculture is promoted.

The invention discloses a corn straw nanocellulose reinforced water-resistant fully-degradable mulching film and a preparation method thereof, and belongs to the technical field of agricultural mulching films. The method comprises the following steps: performing two-step DES treatment on corn straws to obtain a nano-cellulose dispersion liquid; a PVA solution with the concentration of 8-12 wt% is prepared; 1-3 wt% of an ultrasonic dispersion silicon source dispersion liquid is prepared; the preparation method comprises the following steps: adding 10 parts of PVA solution, 1.25 parts of silicon source dispersion liquid and 20 parts of glycerol into 100 parts of nanocellulose dispersion liquid to obtain film coating liquid, carrying out curtain coating in a polytetrafluoroethylene mold, and naturally drying to form the film. PVA has good film-forming property but poorer water resistance, and nano cellulose and nano silicon dioxide can be used as green modifiers to be blended with PVA and self-assembled to form a hydrogen bond cross-linking system, so that a'rigid cellulose and silicon dioxide network-flexible PVA matrix 'enhanced structure is formed. Meanwhile, forestry and agricultural residues (corn straw) are adopted as raw materials, nanocellulose is prepared through a two-step deep eutectic solvent (DES), and the problem of high pollution caused by traditional strong acid / strong alkali treatment is solved.

The invention discloses a waste mulching film cutting and breaking device which is used for cutting and breaking bundled waste mulching films and comprises a waste mulching film of a cutting mechanism, a waste mulching film of a primary breaking mechanism, a waste mulching film of a secondary fine breaking mechanism and a waste mulching film of an angle-adjustable discharge port mechanism which are sequentially connected. The waste mulching film of the bag cutting mechanism is in a funnel shape, and a plurality of cutter head cutting assemblies are arranged on the side wall of the bag cutting mechanism and used for cutting and packaging the oppositely-bundled waste mulching film. The waste mulching film of the primary crushing mechanism is used for primary cutting of the cut waste mulching film, the cut waste mulching film enters the waste mulching film of the secondary fine crushing mechanism for secondary cutting, and the waste mulching film of the secondary fine crushing mechanism serves as a fan. And the waste mulching film subjected to secondary cutting is blown out according to a preset angle through an angle-adjustable discharging opening mechanism. The waste mulching film bale cutting and crushing device can effectively solve the problems that a blade of an original device is heated and adheres to the blade, cutting is not smooth, and blockage is prone to occurring, and meanwhile disordered feeding of materials is achieved.

According to the film uncovering device and the film uncovering mode, a single-ridge mulching film is firstly separated into two parts through the film uncovering mechanism, then the mulching film is collected from the two sides through the film rolling mechanism, tobacco leaf losses are reduced, and the film uncovering effect is effectively improved; the technical scheme comprises a main body, a transmission mechanism, a film lifting mechanism, a film rolling mechanism, a walking mechanism and a control mechanism, a walking and transmission mechanism is arranged below the main body, a control mechanism is arranged above the main body, and a film lifting mechanism and a film rolling mechanism are arranged at the front end; the film rolling machine fixing plate consists of two vertical beams and a cross beam and is fixed at the front end of the main body; the film lifting mechanism is located below the film rolling mechanism, two adjusting plates are connected to a vertical beam of the fixing plate, one end of each adjusting plate is connected with the fixing plate, the other end of each adjusting plate is provided with a film lifting shovel, and a film cutting blade is arranged at the position close to the film lifting shovel and connected through a connecting roller. A limiting plate is arranged at the lower end of the vertical beam of the fixing plate, and the limiting plate and the adjusting plate form a buried depth adjusting mechanism.

The invention discloses a method for interplanting konjak under a coffee forest, and belongs to the technical field of konjak planting. The problems of konjak yield reduction and irrigation contradiction caused by water and nutrient competition between coffee trees and konjak root systems are solved. Isolation ditches are dug between rows of coffee trees, a root system isolation plate is inserted to separate two crop root system areas, a black plastic mulching film is laid to inhibit weeds and preserve soil moisture, cross-shaped planting holes are formed to position konjac seeds, a drip irrigation belt is arranged in a coffee area, a micro-spraying belt is arranged in a konjac area, and konjac tubers are dug along the outer side of the isolation plate during harvesting. Physical isolation root competition and layered precise irrigation are achieved, the disease and pest spreading risk is reduced, and the land utilization efficiency and the konjak commodity rate are improved.

The invention discloses a ridging, film mulching, hole sowing and soil covering all-in-one machine for potato breeder's seeds, and relates to the technical field of hole sowing of the potato breeder's seeds. A ridging mechanism is arranged at the bottom of the all-in-one machine body, and the ridging mechanism comprises a ridging soil turning plate and a ridging rotating wheel; a seeding mechanism is arranged on the left side of the bottom of the all-in-one machine body and comprises a seeding hopper, a fertilizer storage hopper and a water supply storage hopper; wherein a film covering mechanism is arranged on the right side of the bottom of the all-in-one machine body, and the film covering mechanism comprises a film releasing rotating shaft. According to the ridging, film mulching, hole sowing and soil covering all-in-one machine for the potato breeder's seeds, ridging and hole pressing operations of the potato breeder's seeds are achieved through movement of the all-in-one machine body, synchronous fertilization and water supply irrigation are achieved when the potato breeder's seeds are sown, and meanwhile hole opening mulching film outer covering is conducted after ridging is conducted; soil is conveyed by the soil shifting overturning spoon to press and cover the mulching film, so that the heat-preservation and moisture-preservation effects are improved.

The invention discloses a starch-based full-biodegradable mulching film capable of being rapidly degraded and a preparation method of the starch-based full-biodegradable mulching film, and belongs to the technical field of degradable materials.The preparation method comprises the steps of tea polyphenol calcium salt preparation, filler preparation, thermal plasticization and film preparation. The preparation of the filler comprises the following steps: adding silicon dioxide into a polyacrylic acid aqueous solution, stirring and centrifuging at room temperature, taking a precipitate, adding the precipitate into a polyvinylpyrrolidone aqueous solution, adjusting the pH value to 3-3.5, stirring and centrifuging at room temperature, taking the precipitate, adding the precipitate into the polyacrylic acid aqueous solution, adjusting the pH value to 3-3.5, stirring and centrifuging at room temperature, taking the precipitate, and freeze-drying to obtain the filler. The starch-based full-biodegradable mulching film prepared by the preparation method disclosed by the invention is good in processability, waterproofness and heat resistance and high in mechanical strength, the problem of phase separation does not occur in preparation, the problem of plasticizer precipitation does not easily occur in long-term use, and rapid degradation can be realized.

The present invention discloses a sorting device for recycling and regenerating waste mulch film, which relates to the technical field of waste plastic recycling and processing, and comprises a frame, on which a sorting device is arranged, and the sorting device comprises a scattering barrel, and the discharging end of the scattering barrel is connected to a secondary screening device, and the secondary screening device comprises a discharge pipe, and the side of the discharge pipe is connected to a discharge pipe, and the discharge end of the discharge pipe is movably mounted with a blade roller. The design scheme of the present invention adopts a design in which a rotating roller is movably mounted in the scattering barrel, and a plurality of groups of blades are distributed in a spiral array on the rotating roller. The blades are driven to rotate by a rotating rod, and the blades scatter the materials to separate the mulch film therefrom. The blades also generate wind force when rotating, and blow the separated mulch film to the discharging end of the scattering barrel, so there is no need for external cyclone separators and other equipment, thereby reducing the floor space occupied by the equipment, and the structure of the present invention is simple, which effectively reduces the production cost of the equipment.

The invention relates to a self-film-changing type peanut seeding machine and method, and belongs to the technical field of peanut seeding machinery. According to the technical scheme, the front end of a hydraulic oil cylinder (18) is connected with a front rack (2), the tail end of the hydraulic oil cylinder is connected with a rear rack (19), the rear rack (19) is driven to rotate along a hinged shaft (55), and a hydraulic folding structure (53) of the rear rack (19) is formed; the mulching film roller frame is provided with two groups of mulching film frames which are arranged up and down, the two groups of mulching film frames are respectively provided with an upper mulching film roller and a lower mulching film roller, a film changing device is arranged between the two groups of mulching film frames, and the film changing device is matched with the upper mulching film roller and the lower mulching film roller to realize automatic film changing. The peanut seeding machine has the beneficial effects that the non-stop automatic film changing is adopted, and under the condition of strong wind in spring, effective peanut seeding operation can be realized, the amount of covering soil used when seeding is completed is increased, secondary pressing on the film is realized, the machine body is shortened, operation or transition is convenient, practicability and convenience are realized, labor is saved, and the structure is compact.

The utility model discloses a waste mulching film rapid recovery device which comprises a cart frame and a pushing handle fixedly arranged on the cart frame, a waste mulching film winding mechanism used for recovering mulching films is fixedly installed in the middle of the top end of the cart frame, and a swing mechanism is fixedly installed on one side of the joint of the cart frame and the waste mulching film winding mechanism. A telescopic guide wheel mechanism is fixedly installed on one side of the bottom end of the cart frame, and a folding mechanism used for shaking off soil on the surface of a mulching film is fixedly installed on the other side of the bottom end of the cart frame. The mulching film recycling mechanism moves, winds and recycles the mulching film along the mulching film, the recycled mulching film is neat, follow-up unified treatment is facilitated, recycling is stable, the missing amount of the mulching film is small, workers can conveniently clean the mulching film, soil cannot be compacted in the mulching film recycling process, and safety and practicability are achieved.

The invention discloses a composite film based on light-biological synergistic gradient degradation and a preparation method thereof, the composite film sequentially comprises a light response layer, a transition layer and a biological response layer from outside to inside, and the light response layer comprises a polycaprolactone matrix, a tetraphenylporphyrin iron photosensitizer and anatase type TiO2 nanorods; the transition layer is a gradient blend of polylactic acid and modified starch; the biological response layer comprises polyhydroxyalkanoate and bacterial cellulose nanofibers; through the design of the three-layer gradient structure and the construction of the bionic microchannel, the synergistic effect of light degradation, hydrolysis and biodegradation is realized; the composite membrane has excellent mechanical properties and environmental adaptability, the degradation period can be accurately regulated and controlled within 30-180 days, and the soil degradation rate within 60 days reaches 91% or above; the preparation method comprises the processes of electrostatic spinning, gradient co-extrusion and bacterial cellulose in-situ culture. The material can be widely applied to the fields of agricultural mulching films, food packaging and the like, and the problems that a traditional degradable film is poor in mechanical property and uncontrollable in degradation are solved.

The utility model discloses an agricultural planting film mulching device, and relates to the technical field of agricultural planting equipment. The utility model comprises two mounting plates, the bottom of each mounting plate is fixedly provided with a support plate; the telescopic plates are arranged between the inner side walls of the two mounting plates at intervals, and the lengths of the telescopic plates are adjustable; the winding roller is rotationally arranged between the middles of the two mounting plates, and a mulching film is wound on the surface of the winding roller; and the connecting piece is arranged on the mounting plate, and the connecting piece is used for mounting and dismounting a wind-up roller. The mulching film spreading device can adapt to operation terrains with different widths by adjusting the length of the telescopic plate, the application range is wider, in the using process, a mulching film is spread from the winding roller, tension is kept through the traction rod, the mulching film is evenly laid on the ground along with advancing of the device, the two sides of the mulching film are pressurized through the pressing ropes, it is ensured that the mulching film is firmly pressed on the ground, and the mulching film spreading device is convenient to use. And the rolling mechanism is arranged, so that rolling or releasing of the pressing rope can be facilitated.

The utility model belongs to the technical field of film mulching seeding machines, and particularly relates to a multifunctional film mulching seeding machine which comprises a crawler head, a fixing frame is fixedly arranged on the tail portion of the crawler head, and two supporting wheels are symmetrically arranged on the two sides of the tail portion of the fixing frame. A traction frame which is driven by a hydraulic cylinder to swing up and down at the rear end is hinged to the middle of the fixing frame. The land leveling mechanism, the film breaking mechanism for cutting off the mulching film and lifting the cut-off head of the mulching film and the two soil covering mechanisms for covering soil on the cut-off head of the mulching film are only driven by one hydraulic cylinder instead of additionally arranged hydraulic equipment, so that the purpose of reducing the equipment cost is achieved.

The utility model discloses an adjustable agricultural environment-friendly mulching film recycling device which comprises a recycling box, a push-pull rod, a box body support, idler wheels, a sealing door, a mulching film recycling mechanism, an adjustable rolling assembly, a mulching film fixing assembly and a mulching film impurity removing mechanism. The mulching film recycling mechanism comprises a bottom supporting plate, a fixed vertical plate, a winding motor, a telescopic rod, a winding frame, a telescopic hydraulic rod, a movable vertical plate, a sliding groove, a sliding block, a rotating support, a rotating clamping plate and a clamping spring, and the mulching film impurity removing mechanism comprises a top supporting plate, a supporting rotating shaft, a lifting hydraulic rod, a brush support, an impurity removing brush, a rotating motor and a fan. The telescopic hydraulic rods are started to drive the telescopic rods to stretch out and draw back, the two winding frames move along with the telescopic hydraulic rods to adjust the distance to adapt to mulching films with different widths, and meanwhile the winding motor is started to automatically wind and recycle the mulching films. The distance between the impurity removal brush and the supporting rotating shaft is adjusted by starting the lifting hydraulic rod, and meanwhile the rotating motor is started to brush and remove impurities on the surface of the mulching film between the impurity removal brushes.

The invention relates to the technical field of mulching film laying and recycling, and provides a mulching film laying and recycling all-in-one machine. The film laying mechanism is arranged in the middle of the rack and used for laying a mulching film on the ground; the multiple film pulling hooks are arranged at the front end of the rack at intervals, and the film pulling hooks are used for breaking old mulching films; the film collecting rods are rotationally arranged at the bottom of the rack, located between the film pulling hooks and the film laying mechanism and provided with winding parts, each winding part is located between the adjacent film pulling hooks, and the winding parts are used for winding broken mulching films. By means of the technical scheme, the problems that in the prior art, no special film collecting and film paving integrated equipment exists, and old mulching films cannot be rapidly and completely recycled through manual film collecting or mechanical film collecting are solved.

The invention belongs to the technical field of saline-alkali soil improvement, and relates to a coastal moderate-severe saline-alkali soil rain-fed dry-farming early-spring sesbania planting method which comprises the following steps: S1, deep rotation is performed on saline-alkali soil; s2, ridging, wherein ditching and ridging are conducted on the saline-alkali soil subjected to deep rotation; s3, punching holes in the ridge sides and forming water gathering pits arranged in a duckbilled shape, and then paving a mulching film on the water gathering pits; s4, holes are drilled in the side face of the water gathering pit in the vertical direction, a seeding channel is formed, then the sesbania seeds are sown into the seeding channel, the peripheries of the holes of the mulching film are covered with soil, a duckbilled structure is formed, and rainwater is guided by means of the mulching film to flow into the water gathering pit to be gathered; s5, forming a straw interlayer after the whole sesbania is returned to the field. Rainwater is gathered to the seeding channel through the mulching film, the amount of water capable of being absorbed by the sesbania seeds is increased, in addition, the mulching film can also achieve the effects of improving the soil temperature and preserving soil moisture, so that the sesbania can be planted in a rain-fed dry farming mode at the end of March, and the saline-alkali soil improvement period is shortened.

The invention discloses a mulching film multi-stage separation and recovery method and system. The method comprises the steps that first screening is conducted on part of waste of materials, and first discharging is conducted on the part of waste separated in the first screening process; carrying out first fragmentation and scattering on the materials subjected to first discharge, separating the materials and a part of waste materials by utilizing blowing assistance, and carrying out second discharge on a part of waste materials separated in the blowing assistance process; carrying out second fragmentation and friction washing on the material subjected to the second discharge, and carrying out second screening on a part of waste materials on the material subjected to the friction washing to obtain a mulching film separated from the waste materials; through the treatment steps of multi-step separation, cleaning, fragmentation, scattering, friction washing and the like, separation of materials and waste materials is effectively achieved, and recycling or reutilization of resources is facilitated.

The invention discloses a multifunctional fully-degradable mulching film with water taking, slow release and soil improvement functions and a preparation method thereof, and belongs to the technical field of agricultural mulching films. The method comprises the following steps: preparing a PVA aqueous solution; the preparation method comprises the following steps: extracting a 3-8wt% nano cellulose solution from plant fibers by a two-step DES method; preparing a silicon source dispersion liquid; adding 10 parts of a nanocellulose solution, 1.25 parts of a silicon source dispersion liquid and 20 parts of glycerol into 100 parts of a PVA aqueous solution to obtain a film coating liquid; adding humic acid and an ion-based fertilizer into the film coating liquid, uniformly mixing, and carrying out curtain coating and drying to form a base film; the preparation method comprises the following steps: preparing 8-12wt% of a hydrophobic degradable material solution, and performing electrostatic spinning on a base film by using the solution to form a Janus structure, thereby obtaining the multifunctional full-degradable mulching film which can realize water extraction from air. The device has a function of taking water from air and a fertilizer slow release function, can release different fertilizers in a gradient manner, and meets the requirements of plants in different growth cycles. After being used, the soil conditioner can be directly turned into soil, the rest part directly acts with the soil, and PVA and humic acid synergistically improve the soil environment.

The present invention relates to the technical field of mulching paper. Disclosed are a mulching paper for greenhouse and a preparation method therefor. The method comprises the following steps: beating wheat straw biomechanical pulp with a beating degree of 35-40°SR to obtain a pulp; fully mixing the pulp with a papermaking auxiliary agent, and performing papermaking to obtain a mulching raw paper; uniformly applying gelatinized cationic starch or gelatinized soybean oil modified starch on a single side or front and back sides of the mulching film raw paper, and drying; and then uniformly applying a polyurethane or acrylic resin coating on the single side or the front and back sides, and drying to obtain the product. The mulching paper uses biomechanical pulp as a main raw material, high physical and mechanical properties and high hydrophobicity and moisture resistance of the mulching paper are achieved by means of addition into the pulp and surface coating, and the mulching paper can replace black plastic mulching films to solve the problems of environmental pollution and the like caused by the plastic mulching films.

The utility model discloses a degradable mulching film with opening parts, which is of a three-layer composite structure and sequentially comprises a paper base layer, a nutrient layer and a waterproof shading layer from bottom to top, the mulching film is provided with uniformly distributed cross-shaped opening parts, each cross-shaped opening part comprises four intermittent cut-off lines with the same starting point, and each intermittent cut-off line penetrates through the paper base layer, the nutrient layer and the waterproof shading layer; a drainage groove is formed in the position of each intermittent cutting-off line, the drainage grooves are symmetrically arranged with the intermittent cutting-off line as the symmetry axis, and the tip ends of the drainage grooves face the intersection point of the four intermittent cutting-off lines. The mulching film provided by the utility model is degradable, is convenient for trepanning, and has a drainage effect.

The invention discloses a waste mulching film roll cutting control method which is applied to a waste mulching film roll cutting machine, the cutting machine comprises a mulching film roll pushing mechanism, a cutting mechanism and a detection system, the mulching film roll pushing mechanism comprises a chain and a plurality of cross rods installed on the chain, and push plates are fixed to the cross rods; the cutting mechanism comprises a cutting knife, a motor and a lifting driving unit; the detection system comprises a position sensor; the method comprises the following steps: acquiring position data of a cross rod on a chain through a position sensor; based on the position data, the lifting driving unit is controlled to operate so that the height of the cutting knife can change regularly. By monitoring the cutting torque, on one hand, the feeding speed can be increased when the cutting torque is low, the cutting speed of the waste mulching film roll can be increased, and on the other hand, the feeding speed can be reduced when the cutting torque is high, so that cutting safety is guaranteed. On the other hand, the situation that hard sundries exist in the mulching film roll, and consequently cutting torque rises instantly can be prevented, and shutdown protection can be conducted in time to prevent a cutting knife from being damaged.

The invention provides tillage and soil preparation equipment and method for improving the water utilization efficiency, and relates to the technical field of strip tillage and agricultural machinery, in particular to the tillage and soil preparation equipment and method for improving the water utilization efficiency. Therefore, the water utilization efficiency of soil and the yield and quality of crops are remarkably improved, the power consumption of tillage and soil preparation equipment can be reduced, the strip tillage quality and the strip tillage efficiency are improved, and the maintenance cost of machinery is indirectly reduced; the tillage and soil preparation equipment can achieve the integrated functions of straw returning, soil preparation, fertilization, pressing, drip irrigation belt laying, mulching film laying and the like, the tillage depth can be adjusted according to the actual situation, the number of the auxiliary racks can be selected according to the area of a field during tillage, the width can be adjusted by adjusting the width of the strip tillage wheel and the width of the pressing wheel, and the tillage and soil preparation efficiency is improved. And a wide-narrow row farming mode is realized by adjusting the distance between the auxiliary racks according to actual conditions.

The invention discloses an oil shale semicoke-based weather-resistant low-cost mulching film and a preparation method thereof.According to the oil shale semicoke-based weather-resistant low-cost mulching film and the preparation method thereof, oil shale semicoke is used as a main raw material, the production cost is reduced, meanwhile, reasonable recycling of resources is achieved, and the concept of sustainable development is met; according to the method disclosed by the invention, the oil shale semicoke is pretreated by adopting the acid solution, so that impurities can be effectively removed, the specific surface area of the oil shale semicoke is increased, and the subsequent reaction efficiency is improved; then through hydrolysis reaction of tetrabutyl titanate, nano titanium dioxide is attached to the surface and the pore structure of the pretreated oil shale semicoke, and by introducing the nano titanium dioxide, the weather resistance and the mechanical property of the mulching film material are remarkably improved; and 3, 5-bis (trifluoromethyl) styrene and cinnamamide are polymerized and grafted on the surface of the oil shale semicoke through an addition reaction between double bonds, so that the prepared mulching film has excellent weather resistance and corrosion resistance.

The invention discloses a remote sensing monitoring method for farmland film mulching age limit, and particularly relates to the technical field of farmland film mulching. By using multispectral and hyperspectral remote sensing technologies, combining farmland environment data such as temperature, humidity and illumination intensity, and by establishing a spectrum database, comparing current remote sensing data with mulching film spectrum characteristics in a preliminary database, and accurately distinguishing normal and abnormal spectrum characteristics; in the identification process, if the distinguishing accuracy is high, the method is directly used for farmland management decision making; if the accuracy is low, the distinguishing capability is enhanced through environment data auxiliary analysis; the accuracy of monitoring the mulching film state is improved, misjudgment is reduced, and a scientific basis is provided for replacement and management of the mulching film, so that farmland management is optimized, the service life of the mulching film is prolonged, and the purposes of reducing cost and increasing efficiency are finally achieved.