48 results about "Crop residue" patented technology

A chopper blade for use in an agricultural harvester chopper to chop crop residue includes a blade body and a hard face. The blade body includes a cutting edge of the chopper blade. The hard face is applied to a surface of the blade body and is harder than the blade body. The hard face includes a sawtooth pattern along the cutting edge such that during use of the chopper blade, the cutting edge wears to the sawtooth pattern to match the sawtooth pattern, thereby forming corresponding sawteeth in the cutting edge, and the sawtooth pattern becomes part of the cutting edge of the chopper blade.

The utility model relates to the technical field of harvesters, in particular to a front fan of a harvester, which comprises a main body comprising a casing, a side plate mounted on the surface of the casing, a rotating shaft arranged on the inner side of the casing, a mounting rack fixedly connected to the surface of the rotating shaft, and blades fixedly connected to the surface of the mounting rack; the connecting mechanism comprises a fixing plate. According to the utility model, the side plate and the casing are separated, so that a worker can operate from the slotted hole for mounting the side plate when overhauling the front fan, the condition that internal devices are taken out and then treated is avoided, the worker can operate more conveniently and quickly, and the working efficiency is improved. The protective net is arranged at the position of the air outlet of the machine shell, so that the protective net can isolate and prevent large-size crop residues or other sundries from entering the position where the blades are installed, and the situation that the blades are damaged due to the fact that objects are rolled in is avoided.

The invention relates to the technical field of rotary cultivators, in particular to an automatic ditching adjustable rotary cultivator which comprises a rotary cultivator body, an auxiliary assembly is installed in the rotary cultivator body and comprises a rotary tillage roller rotating in the rotary cultivator body, the two ends of the rotary tillage roller are connected with first reciprocating lead screws through first synchronous belts, and the two ends of the rotary tillage roller are connected with second reciprocating lead screws through second synchronous belts. And one end of each first reciprocating lead screw is connected with a second reciprocating lead screw through a second synchronous belt, the second reciprocating lead screws are connected with threaded blocks in a sliding mode, and piston pipes are installed on the outer surfaces of the threaded blocks. The telescopic frame drives the two groups of furrow openers to reciprocate, so that each group of furrow openers pretreats soil, crushes hard shells or hardened layers on the surface layer of the soil, reduces the impact caused by direct cutting of blades of the rotary cultivator into high-resistance soil, cuts off root systems of weeds or crop residues by the reciprocating furrow openers, and reduces the probability that the blades of the rotary cultivator are wound by the weeds.

The invention provides quantitative fertilization equipment for returning rotten vegetable to field and fertilizing soil and a control method, and belongs to the technical field of fertilization equipment.The quantitative fertilization equipment comprises a handle, a rod body is fixedly connected to one side of the bottom of the handle, a material storage box is fixedly connected to one side of the outer wall of the rod body, and one side of the material storage box communicates with an inner cavity of the rod body through a connecting pipe; the bottom of the rod body is fixedly connected with a sharp shovel head, and the handle is further provided with a ground breaking auxiliary assembly. By means of the soil breaking auxiliary assembly, when an area to be subjected to soil breaking is covered by plants, the plants can be pushed away to the periphery under cooperation of expansion cloth and an expansion plate, then the sharp shovel head is used for soil breaking, the sharp shovel head can avoid the plants and make direct contact with soil, and therefore the situation that the sharp shovel head damages crops in the falling process is avoided; and the fertilizer and crop residues are prevented from being buried together to influence the fertilization effect.

A system for controlling the operation of ground-engaging tools of an agricultural implement includes a ground-engaging tool configured to be moved through the soil of a field. Furthermore, the system includes an actuator configured to apply a force on the ground-engaging tool. Additionally, the system includes a vision-based sensor configured to generate data indicative of a cellulose content of crop residue present within a field of view of the vision-based sensor. Moreover, the system includes a computing system communicatively coupled to the vision-based sensor and configured to determine the cellulose content of the crop residue based on the vision-based sensor data. Additionally, the computing system is configured to control the operation of the actuator based on the determined cellulose content.

The invention discloses a charcoal-based alkali metal catalyst as well as a preparation method and application thereof, and belongs to the technical field of agricultural waste treatment. The biochar-based alkali metal catalyst comprises the following components in parts by weight: 20-30 parts of modified biochar and 18-25 parts of an alkali metal compound, and a nitrogen-rich solution generated after a hydrothermal reaction of livestock and poultry manure is used as a modifier to modify straws to obtain the modified biochar. The invention further discloses a preparation method of the biochar-based alkali metal catalyst and application of the biochar-based alkali metal catalyst in hydrothermal conversion of crop residues. The biochar-based alkali metal catalyst prepared by the method can effectively improve the hydrothermal conversion efficiency and reaction rate of agricultural wastes, has excellent physical stability and recoverability, and realizes resource utilization of the agricultural wastes.

The invention relates to a turning and cutting curved surface combined plow, which is characterized in that a turning and upturning plow body is rotated to remove part of edge materials to form a disc with a notch for cutting off stubbles and crop residual stalks. The plow column is adjustably connected with the mounting seat through a bolt, and the mounting seat is fixed with the plow frame through a U-shaped buckle. During operation, the plough share firstly cuts and lifts upturned soil, the upturned soil is conveyed to the rotary upturned soil turning plough body through the plough share, the rotary upturned soil turning plough body rotates under the driving of the friction force of the upturned soil, the upturned soil rotates, turns over and falls back along with the rotary upturned soil turning plough body, crushing and turning over of the upturned soil are achieved, and turning over and stubble burying operation is completed. By means of the combined structure of the plough share and the rotary upturned soil plough body, on the basis that the stable soil penetrating and upturned soil turning effects are guaranteed, sliding friction between the plough body and upturned soil is partially converted into rolling friction, the tillage resistance and energy consumption are fundamentally reduced, the soil tillage efficiency and quality are improved, and the rotary upturned soil plough is particularly suitable for the working condition of high stubble sticky heavy soil.

An agricultural machine includes a computing system communicatively having one or more processors and one or more non-transitory computer-readable media that collectively store a machine-learned model configured to receive the image data and to process the image data to output classifications for pixels of the image data. Furthermore, the one or more non-transitory computer-readable media collectively store instructions that, when executed by the one or more processors, configure the computing system to perform operations. The operations, in turn, include receiving the image data from the imaging device and inputting the image data into the machine-learned model. Additionally, the operations include receiving the classifications for the pixels of the image data as an output of the machine-learned model and identifying residue bunches or residue evenness of within the portion of the field based on the classification for the pixels.

The invention relates to a method of producing nitrogen-enhanced vermicomposting through the incorporation of nitrogen-rich Gliricidia sepium leaves into a vermicomposting substrate. Organic waste materials including animal manure, crop residues, and food waste are blended with pre-dried and shredded Gliricidia sepium foliage in optimized proportions and decomposed by epigeic earthworms (Eisenia fetida) under mesophilic conditions (20–35 °C). The biological interaction between earthworms and microorganisms results in a finely divided, porous, humus-like vermicompost characterized by increased nitrogen, phosphorus, and potassium (NPK) levels and measurable nitrogen content.

Arrangement (80) for switching a combine harvester (10) between swath laying and broadcast spreading operation, comprising a front element (82) and a rear element (84) arranged downstream of the front element (82) with respect to a material flow direction of the crop residues, wherein the rear element (84) is rigid in itself, is articulated at its upstream end about a first pivot axis to a chassis (12) of the combine harvester (10) and is movable between a swath laying position and a wide spreading position by means of an adjusting drive (86). and the front element (82) is movable between a swath laying position and a wide spreading position, is articulated at its upstream end about a second pivot axis on the chassis (12) of the combine harvester (10), is rigid in itself and is coupled to the adjusting drive (86) by a spring (102).

The utility model belongs to the technical field of agricultural engineering, and particularly relates to a green manure fertilizing device which comprises a soil turning machine body, and a soil turning decomposition mechanism is arranged at the bottom of the soil turning machine body. The soil turning and decomposing mechanism comprises a fixing part, a soil turning rod, soil turning teeth, a servo motor, a transmission belt wheel, a driven belt wheel, a transmission belt, a supporting part, a rotating rod, a decomposing cutter, an output gear and a rotating gear, the fixing part is fixedly installed at the bottom of the soil turning machine body, the soil turning rod is rotationally connected to the interior of the fixing part, and the two ends of the soil turning rod penetrate to the outer side of the fixing part; the soil turning teeth are fixedly connected to the surface of the soil turning rod, and the servo motor is fixedly installed on the top of the soil turning machine body. According to the green manure fertilizing device, roots or sundries of green manure crops in soil can be cut in the soil turning process and the fertilizing process, and the decomposition speed of residues of the cut green manure crops is high, so that more nutrient elements are provided for the crops, and the soil fertilizing effect is improved.

A vegetal concrete masonry unit and method and system for manufacturing thereof are disclosed. The masonry unit comprises treated crop residues (e.g., paddy straw, wheat straw, bagasse), a binder of hydrated lime, ground granulated blast furnace slag (GGBFS), and low-content alkali activator (2.5-20% by mass), and aggregates in a mass ratio of 1:0.1:1.5 to 1:5:5, achieving compressive strengths of 2-20 MPa and densities of 950-1900 kg / m3. The method involves alkali-treating residues at 0.1-10M NaOH for 15-1500 minutes, passing through a screw press, mixing with binder and aggregates to form C-A-S-H and N-A-S-H gels, and high-pressure molding (2-10 MPa). The system includes silos, a retention tank / screw press, pan mixer, and hydraulic press. This sustainable bio-composite utilizes agricultural / industrial wastes, reduces emissions by 80%, is energy efficient, enhances compatibility and mechanical performance, and provides thermal insulation for eco-friendly building blocks and panels.

The invention discloses an adjustable blade layout device. The adjustable blade layout device comprises two symmetrical wallboards, a cutter shaft, an axial displacement mechanism, a cutter holder unit, a mounting disc and blades. The two ends of the cutter shaft are rotationally connected to the two wallboards through bearings. The axial displacement mechanisms are arranged on the cutter shaft at equal intervals; the tool apron unit is adjustably mounted on the tool shaft through the axial displacement mechanism; the installation disc is installed on the tool apron unit through a deflection mechanism, and the installation disc is driven by the deflection mechanism to swing left and right in the axis direction of the tool shaft. And a plurality of blades are mounted on the mounting disc in the circumferential direction. The axial distance between the tool apron unit and the blade on the tool shaft can be conveniently adjusted through the axial displacement mechanism; the axial deflection angle of the blade can be adjusted through the deflection mechanism. A user can quickly configure the optimal blade layout according to the requirements of soil conditions, crop residues, tillage depth and the like, and the adaptability and the operation effect of the rotary cultivator are remarkably improved.

A spreader for harvested crop residue is configured to be attached downstream of a straw chopper of a combine harvester and comprises two adjacently arranged throw blowers with paddles which are able to be set in rotation about one respective axis and in opposing directions to one another, as well as a guide arrangement for predetermining the spreading characteristic of the throw blowers, said guide arrangement having a front tip penetrating the interstice between the throw blowers and two lateral guide elements which follow downstream and which in each case are adjacent to a throw blower and are adapted to the contour thereof. Extension means are connectable or connected to the guide arrangement, for selectively extending the guide device in the axial direction of the throw blowers.

This invention provides a method for preparing an iron-silicon composite organic fertilizer using acid-activated iron tailings. The method involves crushing high-silicon iron tailings through a 200-mesh sieve, mixing it with an acid activator composed of citric acid and oxalic acid in a specific ratio, aging it in water for 25-30 days, and then drying it to obtain acid-activated iron tailings. This is then mixed with livestock manure (20-45 parts), crop residues (15-40 parts), microbial agents (1-2 parts), and water (10-30 parts), and composted in windrows for 40-50 days before drying to obtain the finished organic fertilizer. This process is simple, low-cost, and energy-efficient, realizing the resource utilization of iron tailings solid waste. The resulting fertilizer is rich in soluble silicon and iron, can complex with humic acid, and is suitable for silicon-loving, acid-loving, and iron-loving crops. It promotes growth, increases yield, and improves quality, and can be used as a base fertilizer or top dressing.

The application belongs to the technical field of agricultural machinery, and particularly relates to a static mulch film based ploughing and seeding machine, which comprises a frame connected with a traction machine, a weeding unit, a seeding unit and a land wheel arranged on the frame respectively, the weeding unit is located in front of the seeding unit along the walking direction of the traction machine, the weeding unit comprises a pair of gathering belts, a gripping assembly and a pulling wheel set matched with the gripping assembly, the gathering belts are respectively located on the left and right sides of crop residues, the gripping assembly is respectively located above the gathering belts, the pulling wheel set comprises a first rotating wheel, a second rotating wheel coaxially arranged above and below and a third rotating wheel located between the first rotating wheel and the second rotating wheel in the height direction, the first rotating wheel and the third rotating wheel are respectively located on the left and right sides of the crop residues, one side of the third rotating wheel has an overlapping area with the first rotating wheel and the second rotating wheel in the horizontal direction and below the gripping assembly, the seeding machine can perform weeding, ploughing and seeding without breaking and winding the mulch film, and the artificial labor and plastic pollution are reduced.

A mowing and intake device (10) for a machine for harvesting stem-like plants is equipped with a cutting disc (12) that can be rotated about its vertical axis for cutting plants standing in a field, a conveying disc (14) arranged above it with drive teeth (16) distributed around its circumference for receiving and conveying plant stems, a support (22) arranged below the cutting disc (12) extending forward and upward with a divider tip (24) attached to the front of the support (22), and at least one scraper (28) that cooperates with the support (22) to remove crop residue from the support (22). The scraper (28) is attached to the conveying disc (14).

The utility model relates to the technical field of cutters, in particular to an anti-winding blade which comprises a blade body, and the blade body comprises a cutter handle and a cutter body which are integrally formed. A knife back and a first knife edge are arranged on the two sides of the knife body respectively, a second knife edge is arranged at the end, away from the knife handle, of the knife body, the knife back and the first knife edge are both bent towards the inner side of the knife body, and the curvature of the knife back is larger than that of the first knife edge. Through the design that the inner sides of the knife back and the first knife edge are bent, winding of crop residues and weeds can be effectively reduced, and the working efficiency of agricultural machinery is improved. And the anti-winding effect is further enhanced through the upward rolling shape design of the cutter body, so that the blade is more stable and reliable in the using process. Due to the notch design of the knife handle and the arrangement of the mounting hole site, the mounting efficiency and stability of the blade are improved, and the service life of the blade is prolonged.

The invention provides an irradiation-treated coal gangue-based soil conditioner as well as a preparation method and application of the irradiation-treated coal gangue-based soil conditioner, and belongs to the field of soil conditioners. The fertilizer comprises the following components in parts by weight: 30-50 parts of coal gangue crushed material, 30-50 parts of crop residue crushed material, 10-20 parts of livestock manure crushed material, 1-3 parts of nitrogen-phosphorus-potassium compound fertilizer and 0.1-0.5 part of water-retaining agent, the coal gangue crushed material, the crop residue crushed material and the livestock manure crushed material are respectively subjected to electron irradiation treatment. According to the present invention, the harmless treatment is performed by using the electron irradiation processing, such that the harmful metal in the coal gangue is cured, the harmful microorganisms in the crop residue and the livestock manure are effectively killed, and the nutrient release in the material is promoted; after the conditioner prepared by the invention is applied, the nutrient content of soil is increased, the crop yield is increased, and effective improvement of barren soil is realized.

A sugarcane harvester includes a cutter assembly for cutting stalks of the sugarcane as the harvester moves through a field. A chopper assembly is provided for chopping the cut sugarcane stalks into billets and crop residue. A primary extractor is provided for cleaning the billets and extracting the crop residue. A loading elevator transports the cleaned billets to a discharge location. At least one moisture sensor is configured to sense a moisture content of the billets as the billets move through the sugarcane harvester, the at least one moisture sensor being configured to generate a moisture content signal representative of the moisture content. A controller is functionally linked with the sensor for receiving the moisture content signal, the controller being configured to generate an output signal based at least in part on the moisture content signal.

This utility model provides a biological interception and purification combination device for ecological drainage ditches in high-standard farmland, relating to the field of high-standard farmland. It includes a biological purification frame, columns, and guide rods. The outer surface of the columns is slidably connected to a interception groove, and the upper surface of the interception groove is hinged to a pull rod. The left and right ends of the guide rods are welded with beams, and the left and right sides of the beams are provided with through holes. A bidirectional threaded rod is rotatably connected within the through holes of the beams. The biological purification frame includes a planting cylinder and an installation support plate. The installation support plate is screwed onto the outer surface of the planting cylinder. Through the interception groove, planting cylinder, and installation support plate, the device prevents crop residues and branches from flowing into the roots of aquatic plants in the planting cylinder, thus avoiding drainage blockage. This facilitates the rapid replacement and cultivation of aquatic plants, solving the problems of drainage blockage caused by the accumulation of crop residues and branches between the roots of aquatic plants in traditional drainage ditches, as well as the inconvenience of replacing and cultivating dead aquatic plants.

In harvesting machines, the function of the dustproof net installed over the cooled part is enhanced to prevent crop debris, dust, and other contaminants from adhering to the cooled part. [Solution] The system is equipped with an air intake port 29 located laterally outward from the unit to be cooled 16, a dustproof net 33 provided in the air intake port 29, and a fan 17 provided adjacent to the unit to be cooled 16. As the fan 17 rotates, outside air from laterally outward from the unit flows along the left-right direction, passes through the dustproof net 33, passes through the air intake port 29, and is supplied to the unit to be cooled 16 as cooling air. The dustproof net 33 has a protruding portion 40 that extends laterally outward from the air intake port 29.

A sugarcane harvester configured to cut sugarcane into a sugarcane mat having crop debris and billets. The harvester includes an extractor configured to receive the sugarcane mat at an inlet and to discharge crop debris from the sugarcane mat at an outlet. An extractor located between the inlet and the outlet includes an extractor fan having fan blades and a vane assembly including a plurality of guide vanes, wherein the angle of the guide vanes is adjustable. A selector includes a manual position to enable adjustment of a rotational speed of the fan blades and an automatic position which automatically adjusts the rotational speed of the fan blades. A controller identifies the position of the selector, and in response to the position of the selector adjusts the angle of the guide vanes to optimize fan performance for cleaning and fuel savings.

A crop residue spreader for an agricultural harvester having a spreader frame with counter-rotating impellers for discharging crop residue and a distribution deflector mounted in close proximity to the impellers for deflecting crop residue discharged by the impellers. A common structural member independently supports both the spreader frame and the distribution deflector, such that the distribution deflector does not contact the spreader frame and connects to the spreader frame only indirectly through the common structural member, forming a gap between the spreader frame and the distribution deflector across the discharge area to provide clearance for discharged crop residue to exit the spreader.

The application discloses a kind of biochar base alkali metal catalyst and its preparation method and application, belong to agricultural waste processing technical field.The biochar base alkali metal catalyst of the application includes 20-30 parts modified biochar and 18-25 parts alkali metal compound by weight fraction, the nitrogen-rich solution produced after hydrothermal reaction of poultry manure is used as modifier, and the modified biochar is obtained by modifying straw treatment.The preparation method of the biochar base alkali metal catalyst is also disclosed, and the application of the biochar base alkali metal catalyst in the hydrothermal conversion of crop residue.The biochar base alkali metal catalyst prepared by the method of the application can effectively improve the hydrothermal conversion efficiency and reaction rate of agricultural waste, has excellent physical stability and recyclability, and realizes the resource utilization of agricultural waste.

This invention relates to a method for estimating soil organic carbon sequestration by crop residue return to the field, comprising: acquiring and processing multi-source data; simulating the photosynthetic carbon assimilation and CO2 flux released by respiration of major cereal crops; extracting the net CO2 flux of MCCs (Mechanical Control Cells) in terrestrial ecosystems; calculating the net assimilated carbon allocation of each component of MCCs during their growth cycle; determining the distribution of biomass carbon in different straw management practices; and calculating the total soil organic carbon sequestration by MCC residue return to the field in all grid units based on the local soil organic carbon conversion rate. The beneficial effects of this invention are: by quantifying the allocation of net assimilated carbon to components such as rhizosphere deposition, crop roots and stubble, collectable straw, and grains, this invention provides crucial support for assessing the carbon cycle and soil organic carbon sequestration potential of farmland ecosystems.

The invention relates to a complex plant source insect repellant and a preparation method thereof, belongs to the technical field of agrochemistry, and aims to solve the problems of drug resistance, residue, stability, poor rain wash resistance and the like of the existing insect repellant. The insect repellant takes low-dose fipronil as a core, is matched with three natural repellents of mint, citronella and a garlic extract, contains a composite plant fermentation extract obtained by fermenting wormwood powder, melia azedarach leaf powder and clove powder through bacillus subtilis, is supplemented with a specific emulsifier, a stabilizer and a synergist, and is supplemented with deionized water to 100 parts. The preparation method comprises the following steps: dissolving, mixing, emulsifying, homogenizing, screening and filling. The insecticidal composition has the advantages of broad-spectrum insect repelling, low drug resistance, good storage stability, difficult decomposition of effective components, strong rain wash resistance, low crop residue, environmental protection, simple and controllable preparation process, suitableness for crops such as vegetables, grains, fruit trees and the like, prevention and control of a plurality of pests, and easy industrial production.

A residue spreader for receiving crop residue from a residue chopper of a combine harvester and for spreading crop residue onto the ground. The spreader includes a spreader body having an inlet and an outlet side, and left and right groups of deflectors, each deflector pivotally mounted on the spreader body in juxtaposed position and configured to laterally deflect the crop residue between the inlet side and the outlet side. The deflectors within each group are coupled together for pivoting movement in unison. A distribution actuator has an actuator body and an actuator element and the actuator body is mounted to the spreader body. The actuator element is coupled to both the left and right groups of deflectors by respective pivoting links. The actuator body is adjustably mounted to the spreader body. An adjustment actuator is connected to the actuator body to control movement of the actuator body with respect to the spreader body to adjust a spread width.

The spreader system includes two spreader rotors configured to rotate about upright rotation axes and to eject residue crop material centrally between the spreader rotors in a direction tangential to the spreader rotors. A deflector configuration including a first and second curved deflector blade is arranged to deflect crops ejected respectively by the first and second rotor, into respective first and second ejection directions. The deflector blades are pivotable about upright pivot axes, to adjust the ejection directions. A sensing arrangement is configured to sense local spreading patterns in a first and second adjustable sensing direction, measure the angular positions of the deflector blades by suitable measuring devices, and adjust the first and second sensing directions so as to correspond to the first and second ejection directions of the crop residue. A control unit is configured to receive signals representative of the local spreading patterns and of the angular positions.