1206 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 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 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 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 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 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 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 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 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 technical field of agricultural separation equipment, in particular to a winnowing separation bin and a hay feed cleaning system.The winnowing separation bin is provided with an obliquely-arranged side wall, so that airflow entering the bin is decelerated firstly and then accelerated, and large materials and materials with the small wind area are different from thin film materials in wind area and inertia, so that the hay feed is separated from the large materials. The large materials and the materials with the small wind area are collected at the discharging opening in the bin bottom, the film materials are discharged through the air outlet, separation of the film materials and straw is completed, the separation efficiency is improved, and the content of mulching films in smashed straw feed is reduced when the device is applied to the field of feed separation. According to the hay feed cleaning system, light materials separated by the winnowing separation bin are fed into the feeding device or the light material treatment device to be further treated and collected, the stability of the separation effect can be improved, waste of the materials is avoided, meanwhile, mulching films are purified to reach the recycling standard, waste is turned into wealth, and two purposes 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 relates to the technical field of waste biomass resource utilization and desert control, in particular to a desert soil improvement method which comprises the following steps: A) uniformly mixing sludge generated by urban sewage treatment with crop waste materials to obtain a mixed material; b) paving the mixed material under the desert earth surface, and sealing the mixed material with sand; c) irrigating to ensure that water permeates the sand covering layer and the mixed material layer; d) uniformly applying a water-retaining liquid mulching film on the surface of the sand covering layer; and E) fermenting under the condition of drip irrigation, and then sowing desert plants. According to the method, the composting technology can be well combined with a drip irrigation system for application, meanwhile, the water-retaining liquid mulching film is matched, waste is recycled, the defect of high evaporation of water in the desert area is overcome, the humification process of compost is accelerated by utilizing the characteristic of high temperature of the desert, and the yield of the desert is increased. The desert soil improvement is scientifically and effectively carried out while comprehensive management and resource utilization of organic wastes are realized.

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 invention relates to the technical field of agricultural machinery, and discloses a full-automatic on-film vegetable pipe laying, film laying and precision sowing all-in-one machine which comprises a rack, a fixing frame, a sowing mechanism arranged on the rack, a pipe laying assembly and a film laying assembly which are arranged on the fixing frame, and a film pressing mechanism arranged on the fixing frame, the soil covering assembly is arranged on the fixing frame; the sowing mechanism is used for sowing vegetable seeds. According to the full-automatic on-film vegetable pipe laying, film laying and precision sowing all-in-one machine, automation and integration of sowing, pipe laying, film laying and other operations are achieved, meanwhile, continuous and uniform pressure is applied to a mulching film through the film pressing wheel on the abutting assembly, the mulching film is laid flatly through the continuous and uniform pressure, wrinkles and bubbles are reduced, the film laying quality is improved, and the labor intensity of workers is relieved. By means of the arrangement, it is guaranteed that the mulching film can be tightly attached to the surface of soil, the film pressing wheels can conduct self-adaptive abutting and pressing according to the change of the terrain of the soil, the problems that the mulching film is too tight locally and torn are solved, and the laying effect of the mulching film is improved.

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.