977 results about "Plastic mulch" patented technology

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 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 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 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 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 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 invention provides a bio-based composite liquid mulching film and a preparation method thereof. The bio-based composite liquid mulching film comprises a nanocellulose solution, modified starch, modified chitosan, glycerol and calcium carbonate, the modified starch is obtained by modifying starch with citric acid; the modified chitosan is obtained by grafting and copolymerizing chitosan with an acrylic monomer. According to the invention, a plurality of bio-based components such as modified starch, modified chitosan, a nanocellulose solution, glycerol and calcium carbonate are integrated, and natural characteristics of bio-based materials are utilized to form a uniform and degradable film layer; the soil moisture retention film can better isolate air and moisture loss, improves the soil moisture retention ability, ensures sufficient strength and flexibility in the application process, and avoids the problems of early cracking or deformation and the like.

The utility model relates to the technical field of mulching film recycling tools, in particular to a tobacco field mulching film recycling device. The device comprises a supporting frame, the supporting frame is of an inverted-U-shaped structure, the top of the supporting frame is connected with a handle, the two ends of the bottom of the supporting frame are rotationally connected with a film rolling assembly, the film rolling assembly comprises a plurality of rollers connected in sequence, and a plurality of film rolling teeth are arranged on the surfaces of the rollers in the radial direction. The whole device is supported by arranging the supporting frame, the film rolling assembly is arranged at the bottom of the supporting frame, a mulching film can be lifted through the film rolling teeth on the surface of the roller, the mulching film is fixed, and then film rolling is achieved; the supporting frame is rotationally connected with the film rolling assembly, so that the resistance between the film rolling assembly and the ground can be reduced while the mulching film is recycled, and the operation is more labor-saving.

The invention relates to the technical field of agricultural equipment, and discloses a peanut film mulching hole-free seeder which comprises an integrated frame, and a connecting frame is arranged at the front end of the integrated frame and used for being connected with a traction machine in a hanging mode; according to the device, a weakening point is accurately preset on a mulching film through a liftable micro hot needle, the traditional manual or mechanical hole breaking is replaced, a hole-free seeding mode of one hole and one point is realized, and the hole-free seeding efficiency is greatly improved. According to the method, the complex procedure of manual film breaking is avoided, the labor intensity is reduced, through the controllable design of the weakening points, it is ensured that peanut seedlings naturally break the mulching film, damage to roots is reduced, the emergence rate and the survival rate are increased, and meanwhile the problem of weed breeding or soil moisture loss caused by too large broken holes is effectively solved.

The invention discloses a paper base-PHA double-sided composite soil biodegradable agricultural mulching film as well as a preparation method and application thereof, and belongs to the technical field of agricultural mulching materials and green high polymer materials. The mulching film comprises a paper base layer and a homologous polyhydroxyalkanoate covering layer arranged on the surface of the paper base layer. Through double-sided synergy of the water-based PHA coating on the soil sticking surface and the thermoplastic PHA extrusion film layer on the windward and rainy surface, and in combination with a'wet-to-heat 'integrated composite process and trace anhydride grafting, super-strong combination of a paper-plastic interface fiber tearing level is realized, and the problem that traditional paper-plastic is easy to layer is solved. Compared with a traditional fluorine-containing product, on the premise that total organic fluorine is not detected, the excellent barrier and moisture conservation performance is achieved with the thinner coating thickness by means of double barriers. The product has excellent mechanical laying adaptability and long-season weather resistance, is fully biodegradable, thoroughly solves the hidden dangers of micro-plastic residues and persistent organic pollutants, and is an ideal green agricultural covering material.

The invention provides a method for planting winter wheat in saline-alkali soil, which belongs to the technical field of wheat planting, and comprises the following steps: S1, rotary tillage and soil preparation: carrying out rotary tillage at the depth of 25-30cm 30-40 days before sowing, doping foreign soil, and applying straw and gypsum; s2, seed treatment: selecting saline-alkaline tolerant wheat seeds, soaking the wheat seeds in a liquid medicine, and soaking the wheat seeds in the liquid medicine; s3, ridging operation: high ridges with the ridge height of 15-20 cm, the ridge surface width of 40-50 cm and the ridge spacing of 25-30 cm are constructed; s4, sowing in line on ridges: sowing the wheat seeds treated in the step S2 on the ridges in line, wherein the sowing depth is 2-3cm; s5, film mulching operation, wherein the ridges are covered with mulching films of a double-film structure, and the film edges of the mulching films are sealed with humic acid slurry; s6, field management: uncovering the film and supplementing seedlings in the seedling stage, and drip irrigation and topdressing under the film in the growth stage. According to the saline-alkali soil winter wheat planting method provided by the invention, the wheat emergence rate can be remarkably increased by constructing a low-salt micro-domain environment.

The invention discloses a PVA / urea / CC lignocellulose composite mulching film as well as a preparation method and application thereof, and belongs to the technical field of agricultural mulching films. The composite mulching film disclosed by the invention is obtained by adding PVA (Polyvinyl Alcohol) into a corncob lignocellulose HTP-CC dispersion liquid subjected to hydrothermal pretreatment, then sequentially adding glutaraldehyde, urea and glycerol and carrying out cross-linking reaction. The mechanical property of the PUCH mulching film prepared by the invention meets the GB / T35795-2017 standard, and the PUCH mulching film has excellent water vapor barrier property, ultraviolet shielding property, urea controlled release property, heat insulation property and biodegradability. The characteristics not only can promote crop growth, but also can reduce agricultural environmental pollution. Therefore, the PUCH mulching film shows huge potential to replace the traditional plastic mulching film, and has important application prospects in agricultural planting.

The invention relates to the technical field of crop cultivation, in particular to a red bean plastic film mulching water-saving and fertilizer-retaining cultivation method, and aims to solve the problems that the integrity of an existing plastic film is damaged, the utilization efficiency of water and fertilizer is low, and the labor intensity of field management is high. The cultivation method is characterized by comprising the steps of soil preparation and bedding, base fertilizer application, laying of a drip irrigation belt below the center line of a ridge body, laying of a mulching film with prefabricated holes, accurate guiding of red bean seeds into the holes of the mulching film through a precision seeder, water and fertilizer integrated accurate management in the whole process, and prevention and control of diseases, weeds and weeds in combination with green prevention and control measures. By adopting the technical scheme, the utilization efficiency of water resources and fertilizers can be remarkably improved, stable performance of the mulching film is ensured, the labor intensity is reduced, and the effects of saving water, retaining fertilizers, saving labor, increasing yield and protecting environment are achieved.

The invention relates to the field of agricultural instruments, and particularly discloses a mulching film recovery winding speed real-time regulation and control method and system based on torque monitoring, and the method comprises the following steps: S1, monitoring a torque signal generated due to the change of film tension in a mulching film winding process in real time through a torque sensor; s2, converting the torque signal into a voltage signal and transmitting the voltage signal to a controller; s3, the controller analyzes, compares and calculates the received voltage signal to generate a rotating speed regulation control signal; torque change in the mulching film recycling process is monitored in real time through the torque sensor, dynamic change of mulching film tension can be accurately reflected, the controller adopts a hybrid control strategy and combines feedforward control and PID feedback control, accurate adjustment of the rotating speed of the driving motor is achieved, real-time matching of the linear speed of a winding device and the traction speed of a walking machine is guaranteed, and the winding effect is improved. The phenomenon that the mulching film is broken or dragged can be effectively avoided through accurate regulation and control, and the mulching film recycling quality and efficiency can be remarkably improved.

The invention discloses a PLC (programmable logic controller) control type film-laying and pipe-laying straight-insertion precision seeding all-in-one machine, and belongs to the technical field of seeders, the PLC control type film-laying and pipe-laying straight-insertion precision seeding all-in-one machine comprises a machine body and a seed storage unit assembled on the machine body, one side of the machine body is connected with a film-laying unit and a pipe-laying unit through an extension frame, a straight-insertion assembly is assembled on the extension frame, and the straight-insertion assembly comprises a synchronous frame inserted on the extension frame; a first electric hydraulic push rod of which one end is connected with the synchronous frame is mounted in the middle of the extension frame; through the arrangement of the film laying unit, the pipe laying unit and the direct insertion unit, the functions of film laying, pipe laying, sowing and film breaking are integrated, full-process mechanical operation is achieved, traditional manual operation is replaced, the labor cost and time investment are greatly reduced, and the machine is particularly suitable for large-scale planting scenes; the air permeability and moisture retention are balanced, oxygen deficit caused by soil hardening is prevented, the situation that seedlings are scalded due to the fact that the mulching film is not broken in high-temperature weather can be avoided as much as possible, and the crop survival rate is increased.

The utility model discloses an intercropping and seeding all-in-one machine, which relates to the technical field of agricultural machinery and comprises a rack, and a soil leveling mechanism, a fertilizing mechanism, a drip irrigation tape laying mechanism, a mulching film laying mechanism, a first soil covering mechanism, a seeding mechanism, a second soil covering mechanism and a pressing mechanism which are sequentially arranged from front to back along a first direction. Through the soil leveling mechanism, the fertilization mechanism, the drip irrigation tape laying mechanism, the mulching film laying mechanism, the first soil covering mechanism, the sowing mechanism, the second soil covering mechanism and the pressing mechanism, the sowing operation of land preparation before sowing, fertilization, drip irrigation tape laying, film laying, sowing, soil covering on a film and complete pressing can be completed at a time. Compared with the traditional sowing operation that multiple machines and tools enter the land repeatedly, the soil can be protected, the operation efficiency is improved, and the operation cost is reduced.

The invention relates to the technical field of agricultural cultivation machinery, and discloses an angelica sinensis planting film mulching and punching device which comprises a punching assembly, the punching assembly comprises a roller assembly, the top of the roller assembly fixedly communicates with a plurality of hole needle assemblies, the roller assembly comprises a cylinder, an arc-shaped pressing plate is installed at the bottom of the cylinder, and the arc-shaped pressing plate is fixedly connected with the roller assembly. First compression rods are fixedly connected to the middles of the inner sides of the two arc-shaped pressing plates correspondingly, the side faces of the two first compression rods are movably sleeved with round pipes correspondingly, the bottoms of the two round pipes fixedly communicate with the inner sides of the two ends of the bottom of a cylinder correspondingly, and the inner sides of the top ends of the two round pipes are movably sleeved with second compression rods correspondingly; the top ends of the two second compression rods are fixedly connected with a connecting plate, the top of the connecting plate is fixedly connected with a plurality of supporting rods, the supporting rods move up and down to be matched with the hole needle assembly to prevent the mulching film from being torn when the mulching film is pulled away from soil, and the problem that the heat preservation effect of the mulching film is reduced due to the fact that the mulching film is easily torn by the hole needle is solved.

The invention belongs to the technical field of cultivation, and discloses a small flat film heat preservation cultivation method for amorphophallus bulbifer in cold and arid areas, and the small flat film is used for covering, so that the ground temperature can be increased, and early sowing and early harvesting of the amorphophallus bulbifer are promoted. The temperature in the mulching film is 7-9 DEG C higher than that in the open field, amorphophallus bulbifer can be sown 30 days earlier, and seedlings emerge 15 days earlier. In addition, the small flat film can reduce water evaporation, prevent rainstorm scouring and keep the soil water content stable, and drought resistance and waterlogging prevention are facilitated.

The invention discloses an anti-aging light-conversion silver black mulching film and a preparation method thereof, and belongs to the technical field of agricultural polymer films. The preparation method comprises the following steps: S1, mixing low-density polyethylene powder, aluminum paste, a complex light conversion agent, dioctyl phthalate and EVA (Ethylene Vinyl Acetate) to prepare silver light conversion master batches; s2, vinyl-terminated fluorosilicone oil, tert-butyl peroxybenzoate and linear low-density polyethylene powder are stirred for a reaction, and modified low-density polyethylene is obtained; the modified low-density polyethylene, maleic anhydride grafted polyethylene, a multi-effect light stabilizer and polyethylene wax are subjected to banburying granulation, and modified light-stable master batches are obtained; s3, carrying out banburying granulation on the low-density polyethylene powder, the polyethylene powder, carbon black, zinc stearate, ethylene bis-stearamide and the EVA powder to obtain black master batches; s4, blending the silver layer and the black layer, and performing double-layer co-extrusion to obtain the light-conversion silver-black mulching film. The light-conversion silver black mulching film provided by the invention has good mechanical properties and aging resistance.

The invention relates to the technical field of mulching film recycling, and discloses an environment-friendly mulching film recycling device which comprises a vehicle body, a soil shaking assembly, a soil grinding assembly and a winding assembly. The vehicle body comprises a first side plate and a second side plate, and a first rectangular hole and a second rectangular hole are formed in the first side plate and the second side plate respectively; the soil shaking assembly comprises a shaking shaft and a transmission assembly, the two ends of the shaking shaft are slidably connected into the first rectangular hole and the second rectangular hole correspondingly, and the transmission assembly is used for driving the shaking shaft to move up and down; the soil rolling assembly comprises a supporting shaft, a rolling shaft and a first motor, the two ends of the supporting shaft and the two ends of the rolling shaft are rotationally connected to the first side plate and the second side plate correspondingly, the rolling shaft is arranged above the supporting shaft, and the first motor is fixedly connected with one end of the rolling shaft; the winding assembly comprises a winding drum and a power assembly, and the power assembly is used for driving the winding drum to rotate. According to the mulching film recycling device, mulching films can be wound and recycled, the recycled mulching films are cleaner, and damage of soil blocks and impurities to the mulching films is reduced.

The invention discloses a straw fiber-based antibacterial mulching film with temperature and humidity response performance and a preparation method, and belongs to the technical field of agricultural mulching films, the straw fiber-based antibacterial mulching film with temperature and humidity response performance comprises a bottom film layer, a slow release layer and a barrier layer in sequence from bottom to top; the slow-release layer is obtained by coating the base film layer with a mixed solution of acetic acid, a bactericide, gelatin and a plasticizer; the barrier layer is obtained by coating palm wax emulsion on the surface of the slow release layer. According to the invention, palm wax, a bactericide (carbendazim), gelatin and a wheat straw fiber-based mulching film are combined to construct the wheat straw fiber-based temperature and humidity response type bacteriostatic mulching film. The straw fiber-based antibacterial mulching film can respond according to the change of environmental temperature and humidity to realize accurate release of pesticides, so that diseases are accurately regulated and controlled.

The invention discloses a mulching film laying device for agricultural planting, and relates to the technical field of agriculture. The mulching film laying device comprises a seeding machine, the seeding machine comprises a rack table arranged on the seeding machine, two connecting columns used for being in butt joint with traction equipment are fixedly installed on the surface of the rack table, and a fixed half-frame plate is fixedly installed on the surface of the rack table; the soil gathering mechanism comprises four bending plates which are mounted on the rack table and are used for gathering soil; through the gathering effect between the two bending plates, soil is gathered into a trapezoidal space formed by the two bending plates and the compression block, the two bending plates are driven to move oppositely through the action of the reciprocating mechanism, meanwhile, the compression block moves vertically downwards under the action of the reciprocating mechanism, and the soil between the two bending plates and the compression block is compressed; trapezoidal convex channels are formed on the two sides of sowing soil, so that the stability of supporting the mulching film is ensured, and the purposes of automatically supporting the mulching film and preventing seeds from being heated and sunburnt due to contact with the mulching film after germination are achieved.

The invention discloses a degradable hypha mulching film and a preparation method thereof, and belongs to the field of agricultural mulching materials, and the degradable hypha mulching film is composed of hypha layers and a hypha cross-linking layer clamped between the hypha layers. The mushroom hypha mulching film is prepared by utilizing the characteristics of adhesion, water resistance and heat preservation of mushroom hyphae, and the method specifically comprises the following steps: culturing mushroom liquid strains, spraying the mushroom liquid strains onto plant fiber paper by taking the plant fiber paper as a bottom film, and degrading lignin and cellulose of the fiber paper by the hyphae to form a hypha cross-linked film, so as to prepare the mushroom hypha mulching film. The film has the basic characteristics of a mulching film, the prepared hypha mulching film has the characteristic of being naturally degraded after the crop growth cycle ends, and no residual matter is left in the soil environment in the degradation process. After the mulching film is degraded, the soil fertility can be effectively improved, the physicochemical properties and biological characteristics of soil can be improved, the problem of environmental pollution caused by the use of a traditional mulching film is further reduced, and powerful support is provided for sustainable development of agricultural production.

The invention relates to the technical field of waste mulching film treatment, in particular to waste mulching film treatment heavy residue separation equipment which comprises a separation box, a conveyor is installed at the front end of the separation box, a feeding hopper is fixedly connected to the front end of the top of the separation box, and a material distribution square box is fixedly connected to the outer side of the separation box. A cyclone dust collector is installed at the rear end of the separation box, the top of the material separation square box is fixedly connected with the cyclone dust collector through a connecting pipe, a centrifugal fan is fixedly installed at the top of the cyclone dust collector, multiple functions of iron removal, smashing, screening, centrifuging, flapping, winnowing, dust removal and the like are integrated, the occupied area of the equipment and the material transfer link are reduced, and the production efficiency is improved. A complete, efficient, automatic and environment-friendly waste mulching film recycling solution is provided, the core innovation point is the composite motion design of the separation assembly and the automatic discharging design of the magnet assembly, the overall practicability is high, and very high market application value is achieved.

The invention relates to the technical field of biodegradable high polymer materials, in particular to a tear-resistant high-barrier biodegradable mulching film and a preparation method thereof, and the tear-resistant high-barrier biodegradable mulching film is prepared from the following raw materials in parts by weight: 60-90 parts of poly (butylene adipate-co-terephthalate); 10 to 40 parts of poly (propylene carbonate); 0.5-5 parts of a plasticizer; 0.05 to 0.3 part of a cross-linking agent; 0.1 to 10 parts of talcum powder; 0.1 to 2 parts of a lubricant; 0.1-1 part of an anti-blocking agent; 0.1 to 1 part of an antioxidant; 0.1 to 1 part of an anti-ultraviolet agent; 0.1-1 part of a light stabilizer; 0.1 to 1 part of an anti-hydrolysis agent; 0.1-1 part of a nucleating agent; the plasticizer is poly (1, 2-propylene glycol adipate); and the cross-linking agent is 1, 4-bis (tert-butylperoxy) diisopropyl benzene. The film has good mechanical properties and water vapor transmission amount, can be completely biodegraded, and has good aging resistance.

The invention discloses mulching film and cotton stalk crushing and sorting equipment, which belongs to the technical field of mulching film treatment structures and comprises a mulching film and cotton stalk crusher and a mulching film sorting machine, the mulching film and cotton stalk crusher and the mulching film sorting machine are communicated together through a discharge hopper, and materials are crushed by the mulching film and cotton stalk crusher and then enter the mulching film sorting machine for sorting mulching films and impurities; the mulching film cotton stalk pulverizer comprises a main base, a driving assembly, a rotating shaft and a feeding hopper, materials enter from the feeding hopper, the driving assembly and the feeding hopper are connected to the top of the main base, the rotating shaft is rotationally connected to the interior of the feeding hopper, the driving assembly drives the rotating shaft to rotate, and cutters are connected to the rotating shaft and the two inner walls of the feeding hopper. The mulching film and cotton stalks can be efficiently smashed, and the blocking phenomenon is reduced.

The invention discloses a pepper water-fertilizer integrated double-film efficient cultivation method, which belongs to the technical field of pepper planting, and is realized through four steps of soil preparation and ridging, sowing, seedling raising and transplanting, double-layer functional mulching film laying and furrow irrigation. Through staggered arrangement design of the vent holes and accurate arrangement of the vent holes in a specific radius range around a pepper transplanting hole, the uniformity of oxygen supply of a root zone is effectively guaranteed, root rot and diseases caused by local oxygen deficit are prevented, and high-quality development of pepper root systems is realized by combining a temperature and humidity coordinated regulation function of a double-film structure; the efficient absorption of nutrient substances is promoted. Compared with traditional film mulching or non-film mulching furrow irrigation treatment, the double-film furrow irrigation system has the advantages that the irrigation amount of each time is only 1.023 m < 3 > / hm < 2 > under the same cultivation condition, the water saving amplitude reaches 65% or above, and the water resource utilization efficiency is remarkably improved.

The invention provides a high-barrier nanocellulose-based composite liquid mulching film and a preparation method thereof.The preparation method comprises the steps that sodium periodate is added into a sodium alginate solution for an oxidation reaction, an oxidized sodium alginate solution is obtained, a chitosan solution is added into the oxidized sodium alginate solution, and a composite solution is obtained after uniform mixing; mixing the nanocellulose solution with the composite solution, dropwise adding an ammonia water solution to adjust the pH value, and carrying out a cross-linking reaction to obtain a matrix solution; the preparation method comprises the following steps: dissolving 2-acrylamido-2-methylpropanesulfonic acid and methacryloyloxyethyl trimethyl ammonium chloride in deionized water to obtain a precursor solution, and adding an initiator into the precursor solution for copolymerization to obtain a zwitterionic polymer; adding a zwitterionic polymer into the Na-montmorillonite dispersion liquid for intercalation reaction to obtain modified montmorillonite; and uniformly mixing the matrix solution, the modified montmorillonite, the plasticizer, the rheology modifier and the surfactant, and then carrying out standing curing and vacuum defoaming.

The utility model discloses a farmland residual mulching film recycling machine which relates to the technical field of waste recycling and structurally comprises a machine body, an absorption box is fixedly connected to one side of the top of the machine body, the bottom of the absorption box penetrates through the top wall of the machine body and is fixedly connected with an absorption opening, and a collection box is fixedly connected to the other side of the top of the machine body. A connecting pipe is jointly and fixedly connected between one side of the absorption box and one side of the collection box, a film taking mechanism is arranged on the inner side of the absorption opening, an air blowing mechanism is arranged on the surface of the machine body, and a negative pressure fan is fixedly connected to one side of the top of the machine body. According to the farmland residual mulching film recycling machine, the situation that soil particles and mulching films are recycled together can be reduced, the recycling quality of the mulching films is improved, the air blowing mechanism assists in rapid collection of the mulching films, and the recycling efficiency of the mulching films is improved.