2935results about "Fertiliser distributers" patented technology

The invention provides a soil sensor and fertilization execution mechanism linkage adjustment method of an intelligent grape deep fertilizer applicator, and relates to the technical field of fertilization execution mechanism linkage. Comprising the steps of performing weighted fusion based on obtained soil data to obtain soil comprehensive parameters, generating a fertilization amount instruction, a fertilization proportion instruction and a fertilization depth instruction through an adaptive optimization algorithm based on the obtained soil comprehensive parameters, and sending the obtained fertilization amount instruction, the fertilization proportion instruction and the fertilization depth instruction to a control module to be executed based on the obtained fertilization amount instruction, the obtained fertilization proportion instruction and the obtained fertilization depth instruction. Through a self-adaptive optimization algorithm, the technical scheme not only dynamically adjusts the fertilization amount, proportion and depth according to real-time soil data, but also can predict the soil change trend according to different environmental factors and perform optimization adjustment, and automatically supplements or reduces the fertilizer according to different soil requirements; therefore, the crops can obtain optimal nutrient supply in different growth stages, the fertilization effect is optimized, and the growth quality and yield of the crops are improved.

An agitation system includes a plurality of modular agitators, and each modular agitator of the plurality of modular agitators includes an agitator configured to couple to a respective modular meter of a plurality of modular meters. Each modular agitator of the plurality of modular agitators also includes an agitator drive assembly configured to drive the agitator. The agitation system also includes a controller configured to receive meter speed data from the plurality of modular meters. The controller is configured to determine an operation for the agitator of each of the plurality of modular agitators and independently control the agitator drive assembly of each of the plurality of modular agitators.

The invention relates to a variable-depth, variable-position and variable-quantity intelligent fertilizer applicator based on the size of a tree crown, and belongs to the technical field of agricultural and forestry machinery. The machine comprises a power device, a fertilizing device, a spiral ditching device, an intelligent identification device and an intelligent control system which are supported on a rack, wherein the rack is arranged on a walking device. The fertilizer applicator can realize integrated operation of intelligent ditching, fertilizer application and soil and fertilizer stirring in agricultural planting environments such as orchards and the like, and meanwhile, can intelligently find an optimal root zone position and adjust the ditching depth, the fertilizer application position and the fertilizer application amount according to the size of a fruit tree crown and the distance of a tree machine, so that the ditching efficiency and the fertilizer utilization rate are improved.

The invention discloses an intelligent fertilizer distribution control system based on Beidou positioning, and relates to the technical field of agricultural automation, and the system comprises the steps: building a fertilization simulation model, and obtaining the relation data of the disc opening size and the fertilization amount of a fertilizer distributor through an experiment; soil analysis data and remote sensing image data are collected and preprocessed; generating a fertilization prescription map by using a multi-objective optimization model based on the preprocessed soil analysis data and remote sensing image data according to the soil characteristics and crop requirements of the field; high-precision positioning data are obtained through a Beidou positioning system, and the fertilization prescription map and the high-precision positioning data are fused to complete field space calibration; based on the field space calibration result and the high-precision positioning data, adopting a Dijkstra algorithm to generate an optimal fertilizer spreading path; in combination with the real-time speed of the tractor and the fertilization simulation model, the disc opening size of the fertilizer spreader is dynamically regulated and controlled, and the fertilization amount is accurately controlled by using a control algorithm; the tractor corner and the field boundary are monitored in real time, and the fertilizer distributor is automatically closed.

The invention relates to a variable-depth, variable-position and variable-quantity intelligent ditching fertilizer applicator based on the diameter of a fruit tree, and belongs to the technical field of agricultural and forestry machinery. The intelligent ditching and fertilizing machine comprises a rack arranged on a walking device, and a power device, a fertilizing device, a spiral ditching device and a control device which are supported on the rack, the fertilizing device is used for conveying the fertilizer from the fertilizer box to a feeding mechanism of the fertilizer discharging pipe according to the control instruction; the spiral ditching device comprises a vertical moving pair and a horizontal moving pair; the spiral ditching device comprises a vertical spiral ditching cutter which is arranged at the lower part of the movable platform and is driven by a spiral ditching driving motor; a visual camera and a laser radar are arranged in the middle of the rack, signal output ends of the visual camera and the laser radar are respectively connected with corresponding input end pins of the intelligent chip, and control output ends of the intelligent chip are respectively connected with controlled ends of the fertilizing motor, the moving motor, the spiral ditching motor and the lifting motor. The device can work at the position of an optimal root zone, the depth, the position and the variable are controlled, and after furrowing is conducted in soil, fertilizer is evenly scattered into furrows.

The invention discloses a self-adaptive fertilizer compensation double-helix fertilizer distributor control system, and relates to the technical field of fertilizer distributors. The data monitoring management center is in communication connection with an information acquisition module, a data processing and analysis module, a fertilizer compensation module, a control decision module, an execution mechanism module and a monitoring and feedback module, all the modules are in electric signal connection, and the information acquisition module is used for collecting farmland environment data and crop growth data and sending the farmland environment data and the crop growth data to the data processing and analysis module. And the collected farmland environment data and crop growth data are transmitted to a data monitoring management center in real time. By monitoring the soil nutrient content and the crop growth state in real time and combining the calculation result of the fertilizer compensation module, the fertilizer application amount, the fertilizer application speed and the fertilizer application time are accurately adjusted, nutrient waste is avoided, and it is ensured that crops obtain needed nutrients in different growth stages.

The invention discloses an intelligent control method and system for saline-alkali soil slow-release fertilizer application, and the method comprises the steps: analyzing the space-time trend of soil salinity change and pH dynamic change through a convolutional neural network, judging the matching demand of the fertilizer release rate, and generating a target release curve; the method comprises the following steps: extracting a high-activity strain adapting to a high-salt environment from a salt-tolerant microbial library through a high-throughput screening algorithm, and determining optimal release time interval distribution of strain function activation by combining with the release characteristic of a dynamic release coated fertilizer; if the soil salinity change exceeds a preset threshold value, sensor monitoring data and a target release curve are integrated through a closed-loop control system, and an optimized fertilization amount scheme is obtained; a deep learning model is adopted to analyze the relation between the optimized fertilization amount scheme and soil deep salt distribution, the parameter requirement of depth accurate regulation and control is judged, and a layered fertilization depth control strategy is generated. Through real-time feedback and optimization iteration, accurate improvement and sustainable nutrient management of the saline-alkali soil are realized.

A numerical-control intelligent air-suction seed metering device, comprising a front shell 1, a rear shell 2, a seed metering disc 3, a built-in fan, a direct drive motor, and an individual seed metering unit intelligent controller 180, wherein a seed inlet 11, a seed outlet 12, and air inlets 13 are formed in the front shell, and the built-in fan is provided on the rear shell; seed suctioning holes 31 are formed in the seed metering disc, a seed filling chamber 7 is formed between the seed metering disc and the front shell, and a negative pressure chamber 8 is formed between the seed metering disc and the built-in fan; the seed metering disc is connected to a drive idler wheel 6; the direct drive motor comprises a stator core 5 and a plurality of magnetic steels 61, the stator core is fixed on the outer wall surface of a fixed drum, and the plurality of magnetic steels are fixed onto the drive idler wheel. In the technical solution, a built-in motor is used to directly drive the seed metering device, so that the seed metering device operates more stably and precisely; the speed of the built-in fan can be adjusted in real time by means of the individual seed metering unit intelligent controller on the basis of seeding requirements and crop types, so as to achieve a negative pressure suction force most suitable for the seed metering device, implement adjustment of the precision seeding rate of an individual seed metering device, and achieve the purpose of improving seeding precision.

An integrated device for soybean sowing and fertilization is provided, including a mobile base, a fertilizer storage unit is installed at one end of the upper side of the mobile base, a sowing box is installed at the other end thereof, a seed storage box is connected to the upper end of the sowing box, a sowing disc is rotationally installed inside the sowing box, a plurality of sowing troughs are arranged at an outer edge of the sowing disc, a quantity adjustment plate is slidably installed inside the sowing trough, a quantity adjustment mechanism for changing a position of the quantity adjustment plate is arranged on the sowing box, a sowing tube is installed at the bottom of the mobile base, a fertilizing chamber is installed at the bottom of the sowing tube, and the fertilizer storage unit is provided with a fertilizing mechanism.

The invention provides a dry farmland soil layered fertilization device with fertilizer control and disturbance reduction functions. The dry farmland soil layered fertilization device with the fertilizer control and disturbance reduction functions comprises a frame. According to the dry farmland soil layered fertilization device with the fertilizer control and disturbance reduction functions, the deep plowshares and the two middle plowshares are arranged for ploughing, and the shallow-layer spreading pipes, the middle-layer spreading pipes and the deep-layer spreading pipes are matched for spreading fertilizers with different depths and different requirements, so that the utilization rate of the fertilizers can be increased; annular layered fertilization is beneficial to promotion of root development, reduction of fertilization times is beneficial to control of the fertilizer spreading amount, layered fertilization of wheat or corn with different depth requirements can be completed under the driving of the air cylinder, and when the shallow-layer spreading pipe, the middle-layer spreading pipe and the deep-layer spreading pipe are used for discharging materials at different depths, the fertilizer spreading amount can be controlled. And surface fertilizer accumulation at the position connected with the discharge port can be removed, so that the subsequent normal discharge is prevented from being blocked by crystals.

An assembly is provided to distribute flowable particulate material, and includes a conduit to which the material is delivered and to which an airstream is supplied to move the material along the conduit to a delivery downstream destination, a separator, within the conduit, to engage the airstream to concentrate the material in a concentrated portion of the airstream by separating a portion of the airstream, an output connected to the conduit downstream of the separator to receive the flowable particular material and deliver the material to the downstream destination, and an air distribution head in constant fluid communication with the separator to receive the separated portion of the air stream and also in constant fluid communication with the output to assist the delivery of the flowable particulate material by the output to the downstream destination by delivering the separated portion of the air stream to the output.

The invention discloses an agricultural mechanical device for precise fertilization, and relates to the technical field of agricultural machinery. Three discharging pipes are arranged on the lower side of the mounting rod at equal intervals, connecting blocks penetrate through the upper sides of the discharging pipes and are fixed to the upper sides of the discharging pipes, the connecting blocks on the front side and the rear side are slidably arranged in sliding grooves in the lower side of the mounting rod, and the connecting block on the middle side is fixed in the mounting rod; the connecting sleeves are fixed to the connecting blocks on the front side and the rear side correspondingly, connecting insertion pipes are inserted into the connecting sleeves correspondingly, and the connecting insertion pipes communicate with the connecting blocks on the middle side. The distance adjusting mechanism is arranged in the mounting rod and connected with the connecting blocks on the front side and the rear side. The conveying mechanism is arranged on the upper side of the mounting rod, and the conveying mechanism penetrates through the top end of the mounting rod and then is connected with the connecting block on the middle side; the quantifying mechanism is connected with the conveying mechanism; the stirring mechanism is arranged in the fertilizer box, and the stirring mechanism is connected with the connecting shaft on one side; different fertilization amounts can be adjusted according to different crops, so that the effect of precise fertilization is achieved, and the fertilization effect and efficiency are improved.

The utility model discloses a quantitative fertilization device for potato cultivation, which comprises a fertilizer storage barrel and a discharge port arranged at the center of the bottom end of the fertilizer storage barrel, a connecting sleeve is fixedly sleeved outside the discharge port, the bottom end of the connecting sleeve is connected with a corrugated delivery pipe, and the right end of the corrugated delivery pipe is connected with a metal charging barrel. The quantitative fertilization device for potato cultivation has the beneficial effects that a novel fertilization depth limiting device is additionally arranged outside the quantitative fertilization barrel and the metal charging barrel of the quantitative fertilization device for potato cultivation, and the device can limit the depth of the quantitative fertilization barrel inserted into the land mainly through a depth limiting plate; in this way, a farmer can be helped to accurately apply fertilizer to the land with the optimal depth during fertilization according to the fertilization requirement, so that the quantitative fertilization device for potato cultivation not only can perform quantitative fertilization, but also can accurately control the fertilization depth in the land; the cultivated and planted potatoes can grow more vigorously through fertilizer quantification and fertilization depth positioning.

The invention discloses a soybean controlled-release fertilizer and seed-fertilizer simultaneous-sowing layered fertilizer distributor, and belongs to the field of soybean planting. Comprising a bottom plate, and three discharging mechanisms are arranged on the lower surface of the bottom plate; three linkage mechanisms are fixedly connected to the front portion of the upper surface of the bottom plate. A driving mechanism is arranged on the right side of the upper surface of the bottom plate; deep scarification mechanisms are symmetrically arranged on the right side of the lower surface of the bottom plate front and back; first supports are fixedly connected to the left side of the lower surface of the bottom plate in a front-back symmetry mode, first rolling wheels are rotationally connected to the opposite sides of the two first supports through rotating shafts, a shaft rod is jointly and fixedly connected to the opposite sides of the two first rolling wheels, and a first transmission wheel is fixedly connected to the outer side wall of the shaft rod. According to the seed-fertilizer simultaneous-sowing layered fertilizer applicator for the soybean controlled-release fertilizer, the stirring mechanism is driven to work through transmission of the first roller, fertilizer caking can be effectively prevented, smooth discharging is guaranteed, and a good foundation is laid for follow-up sowing and fertilizer applying operation.

A solid distribution system of an agricultural spreader includes a product hopper configured to contain solid particulate material, a blower, a manifold coupled to the blower and having a plurality of outlets, at least one boom arm comprising a plurality of parallel rigid tubes configured to carry the solid particulate material and air from the blower, and a plurality of hoses. The manifold is configured to split air flow from the blower into flows through each of the plurality of outlets. Each valve is in fluid communication with one of the outlets and one of the rigid tubes, and each valve individually controls flow through a respective one of the rigid tubes. Vehicles having such solid distribution systems are also disclosed.

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 provides an impeller type rice side depth variable fertilizer apparatus based on discrete elements, and belongs to the field of rice side depth fertilization. The invention aims to provide a structure capable of meeting the variable application requirement of the liquid fertilizer and provide the optimal parameter design of the structure. According to the impeller type variable fertilizer discharger, the impeller rotates to convey the fertilizer from the fertilizer inlet to the fertilizer outlet, and the opening degree of the fertilizer discharging inlet is changed by adjusting the speed of the fertilizer adjusting shifting piece, so that variable control of the fertilizing amount is realized. In order to ensure that the device can operate according to expectation, key parts are theoretically analyzed, and structural parameters are reasonably optimized and adjusted by combining simulation research on related factors of the fertilizer in the movement process; the design of the device not only provides a new implementation way for variable rate fertilization, but also contributes to improving the fertilization precision and the automation level of rice production, and promotes the development of rice agricultural mechanization to a certain extent.

The invention relates to the technical field of agricultural machinery, in particular to a crop layered fertilization intelligent precision plowing and sowing machine which comprises a rack, a walking driving part is arranged on the rack, a sowing machine is arranged on one side of the rack, a bearing frame is fixedly connected to the side, away from the sowing machine, of the rack, and a plurality of rotary tillage assemblies are transversely arranged on the bearing frame at equal intervals; a plurality of fertilization assemblies capable of vertically sliding are arranged at the bottom of the side, close to the rack, of the bearing frame, transmission assemblies are arranged between the soil retaining assemblies and the fertilization assemblies, and the transmission assemblies are used for reducing the impact force of the soil particles raised by the rotary tillage assemblies to the soil retaining assemblies and reducing the impact force of the soil particles raised by the rotary tillage assemblies to the fertilization assemblies. Transmission is converted into driving force for the height of the fertilizing assembly. The soil texture is fed back through the impact force of soil particles raised by rotary tillage and soil disturbance, so that the layered fertilization depth is adjusted in a linkage manner, and the defects of poor adaptability between the fixed layered fertilization depth and different soil properties and soil nutrient loss in traditional tillage and sowing are overcome.

The invention discloses fertilization cultivation equipment for polygonatum odoratum breeding, and relates to the technical field of fertilization cultivation. Comprising a circular plate, the bottom of the circular plate is fixedly connected with a motor, the output end of the motor penetrates through the circular plate, the side, close to a body, of the top of the circular plate is fixedly connected with a protection plate, the top of the circular plate is slidably connected with two arc plates, the end, away from the protection plate, of each arc plate is fixedly connected with a side plate, and the two arc plates are symmetrically arranged with the protection plate as the center; the bottom of the bent plate is in contact with the top of the circular plate. According to the fertilizing cultivation equipment for polygonatum odoratum breeding, the rotating shaft drives the bent plate to rotate, at the moment, fertilizer on the round plate is thrown out under the action of centrifugal force under the rotation of the bent plate, and therefore a large area can be covered, fertilizing dead angles are reduced, meanwhile, fertilizer distribution can be accurately controlled, fertilizer distribution in the field is more uniform, and the fertilizing effect is better. And the overall growth quality and yield of crops can be improved.

A feed control system for a spreader includes a section configuration module configured to output a section configuration and a section control module configured to receive the section configuration, determine a first actuator position based on the section configuration, and determine a second actuator position based on the section configuration. The feed control system also includes a belt speed module configured to receive the section configuration, receive a commanded belt speed, and determine a target belt speed based on (i) the section configuration and (ii) the commanded belt speed.

The invention discloses a seeding device for dynamic variable rate fertilization and a variable rate fertilization seeding method thereof, and the seeding device comprises a walking mechanism on which a seeding mechanism and a fertilization mechanism are loaded; the seeding mechanism comprises a seeding wheel, and a plurality of grooves for receiving seeds are annularly and uniformly formed in the wheel surface of the seeding wheel; the fertilizing mechanism comprises a fertilizing wheel, and a plurality of grooves for receiving fertilizer are uniformly distributed in the wheel surface of the fertilizing wheel in the circumferential direction; wheel shafts of the sowing wheel and the fertilizing wheel are connected with a walking wheel rotating shaft of the walking mechanism through a transmission mechanism, when the grooves rotate to the upper side, the corresponding grooves can be filled with seeds or fertilizer falling by gravity, and when the grooves rotate to the lower side, the seeds or fertilizer in the grooves can fall by means of self weight to complete sowing; and the plurality of grooves in the fertilizing wheel can be independently dormant. According to the invention, on the premise of different seeding types and seeding densities, the fertilizing amount can be dynamically adjusted according to the land fertility distribution condition, and high-precision variable fertilization is realized.

The present disclosure relates to a gas explosion type intelligent variable-rate fertilization scarifier for a tea garden. The gas explosion type intelligent variable-rate fertilization scarifier includes a walking mechanism, a fertilization-scarifying mechanism, a gas explosion mechanism, a solid fertilizer supply mechanism, and a water fertilizer supply mechanism. The fertilization-scarifying mechanism includes a transmission assembly, a detection assembly, and a fertilization-scarifying assembly. A first fertilizer conveying pipeline is fixedly connected between the solid fertilizer supply mechanism and the fertilization-scarifying assembly, and a second fertilizer conveying pipeline is fixedly connected between the water fertilizer supply mechanism and the fertilization-scarifying assembly. Each of the first fertilizer conveying pipeline and the second fertilizer conveying pipeline is provided with a solenoid valve. The walking mechanism, the gas explosion mechanism, the solid fertilizer supply mechanism, the water fertilizer supply mechanism, the fertilization-scarifying mechanism and the solenoid valves are all electrically connected to a same controller.

The invention relates to the technical field of agricultural machinery, and discloses an adjustable soil covering device for ginger planting, comprising: a mobile vehicle, the front side of the bottom of which is provided with a front wheel matched with the curved surface of a ridge, and the rear side of which is provided with a rear wheel with a ditch edge profiling structure; the central mixing bin is integrally formed in the middle of the mobile vehicle chassis, and a rotatable scattering disc is coaxially arranged in the central mixing bin. The mixing process of soil and fertilizer is innovatively integrated in the central mixing bin, and the fertilizer is sucked from a storage box through a Venturi negative pressure generator in a pneumatic conveying mode; the high-pressure fan provides airflow power to feed the materials into the mixing bin, non-blocking automatic fertilizer supply is achieved, the fertilizer and soil intersect in the bin, the materials are guided to spirally fall down by means of the tapered spiral flow guide column, the mixing path is prolonged, meanwhile, the ultrasonic vibration plate continuously vibrates to form lumps, it is guaranteed that the two materials are highly and evenly mixed, and the mixing efficiency is improved. And a mixed substrate with stable quality is provided for subsequent precise soil covering.

The invention relates to the technical field of agricultural mechanical equipment, in particular to an agricultural planting fertilizer mixing and fertilizing device which comprises a rack, a fixing plate and the like. Two grips are arranged on the rack; the rack is rotationally connected with a roller; a fixing plate is rotationally connected to the rack. According to the device, the mud scraping plate drives the cutting ring to rotate while the connecting pipe drives the mud scraping plate to rotate, so that root systems at the edge of a fertilization hole are cut off through the sawteeth, then drilling operation is performed through the spiral auger, the spiral auger is prevented from pulling the root systems of fruit trees, and the yield of the fruit trees is improved. After the soil and the fertilizer are completely pushed into the fertilization hole through the spiral auger, the cutting cylinder moves downwards, and the edge of the fertilization hole is cut through the sharp edge on the lower side of the cutting cylinder, so that the root system at the edge of the fertilization hole is further cut, the flatness of the section of the root system is ensured, and the healing and regeneration of the root system are facilitated.

The invention discloses a large-scale planting rotary tillage fertilizer applicator, and relates to the technical field of agricultural tools, the large-scale planting rotary tillage fertilizer applicator comprises a rack, a transmission box is mounted at the upper end of the rack, transmission shafts are mounted at two ends of the transmission box, protection plates are mounted at two ends of the rack, and a driving shaft is rotatably mounted between the two protection plates; a plurality of rotary tillage blades are detachably mounted on the surface of the driving shaft, a stone crushing box is mounted at the lower end of the rack in front of the driving shaft, a partition plate is mounted in the stone crushing box, a crushing assembly is mounted between the partition plate and the stone crushing box, a plurality of arc-shaped sieve plates are mounted at the front end of the partition plate at equal intervals, and a stirring assembly is mounted in the stone crushing box above the arc-shaped sieve plates. Soil is turned over for the first time by arranging the soil turning roller, stone blocks are stirred into the stone crushing box through the arc-shaped sieve plate by using the stirring assembly, the two stone crushing rollers in the stone crushing box crush the stone blocks, the crushed stone blocks fall on the soil to change the soil structure, and the situation that the rotary tillage blades are abraded by large stone blocks is avoided.

The invention relates to the field of navel orange planting, in particular to a planting device for navel orange sapling transplanting. The fixed half hopper is arranged below the front side of the transplanting frame, and the middle of the fixed half hopper is provided with a through groove for a navel orange tree seedling trunk to penetrate through; the sliding half hopper is arranged below the front side of the transplanting frame in a sliding manner; the sliding half hopper and the fixed half hopper can be spliced into a complete hopper shape; the backfilling wheel is arranged on the front side of the bottom of the transplanting frame, and the backfilling wheel rotates so that the soil can be backfilled to the roots of the navel orange saplings. According to the planting device, by arranging the fixed half hopper and the sliding half hopper which can limit navel orange seedlings, the navel orange seedlings are erected in the planting pits, soil is backfilled into the planting pits of the navel orange seedlings in cooperation with the rotating backfilling wheel, the navel orange seedlings can be rapidly transplanted, the transplanting process is simplified, operation is convenient, the manual operation requirement is reduced, and the navel orange seedlings can be rapidly transplanted. The transplanting efficiency is improved.

The invention discloses a transverse displacement fertilization control method based on canopy information perception, and relates to the technical field of agricultural fertilization. Crop canopy growth information is obtained based on a sensor installed on a double-helix fertilization machine; and according to the obtained crop canopy growth information, fitting a drip line position of the crop, and extracting an accurate curve of the drip line of the crop. Through canopy information perception, the nutrient requirements of crops can be accurately recognized, a control strategy is provided for adjustment of the fertilization amount, fertilizer waste caused by blind fertilization is avoided, the fertilization amount is properly reduced in an area with vigorous growth, and nutrient excess is prevented; in a region with weak growth vigor, the fertilization amount is increased, the growth requirements of crops are met, the fertilization amount is reduced, soil and water pollution caused by excessive fertilization is reduced, the ecological environment is protected, meanwhile, the uniform distribution of the fertilizer can be ensured by monitoring and adjusting the fertilization speed in real time, and the utilization efficiency of the fertilizer is further improved.

An example manure application unit can include: a main arm pivotally mounted to a toolbar mount tube; a coulter blade operatively connected to the main arm; a closure arm pivotally mounted to the main arm; a closure blade mounted to the closure arm; a main arm downforce assembly, operatively connected between the toolbar mount tube and the main arm, to provide an adjustable downforce force to maintain the coulter blade engaged with ground; and a closure arm torsion spring, operatively connected to the closure arm, to provide varying downforce forces on the closure blade to maintain the closure blade engaged with the ground during operation.

The invention discloses a forest planting fertilizer applicator device for repairing degenerated forests in the north, south and south, which belongs to the technical field of forest planting and comprises a rack, moving wheels rotatably mounted at the bottom of the rack and a handle positioned at the rear end of the rack. Through cooperation of the rack side edge fixing pipe and the inner vertical sliding insertion pipe, the insertion pipe top end rapid pulling and inserting mechanism is combined, efficient insertion and soil pulling out operation of the insertion pipe can be achieved, through cooperation of the side edge quantitative discharging mechanism, precise quantitative fertilization during insertion is ensured, automatic fertilizer release is completed through the insertion pipe bottom end release mechanism, and the labor intensity of workers is relieved. According to the drawing and inserting type fertilization mode, the fertilization depth and spacing can be accurately controlled, a forest root system concentration area uniformly absorbs nutrients, the fertilizer can be directly injected into the deep layer of soil, nutrient loss caused by surface evaporation and rain wash is reduced, meanwhile, tiny holes are only formed in the target position, and compared with a traditional ploughing and ditching mode, the fertilization efficiency is greatly improved. Surface vegetation and soil structures are reserved to the maximum extent, and the wind erosion desertification risk is reduced.

A layered fertilizer applicator capable of penetrating into soil for forestry cultivation relates to the technical field of agriculture and is characterized in that a lifting plate is slidably arranged on the front side of a cart through a slide rail pair, an electric telescopic rod is fixedly arranged at the upper part of the cart, one end of the electric telescopic rod is connected with the lifting plate, and a driving box is fixedly arranged on the front side wall of the lifting plate; the upper end of the vertical pipe is connected with the fertilizer storage box through a material conveying hose, three driving cylinders are rotationally connected into the driving box through bearings, a worm meshed with the three worm wheels is fixedly arranged on an output shaft of the motor, and one end of the worm is rotationally connected with the inner wall of the driving box through a bearing; the rotating cylinders are rotationally arranged at the bottom of the driving box through thrust ball bearings, the upper ends of the rotating rods movably penetrate through the rotating cylinders and the driving cylinders and then are movably inserted into the vertical pipes, and the three rotating rods are fixedly sleeved with the spiral cutters correspondingly, so that layered fertilization can be achieved by going deep into soil, and the fertilization effect is improved; and the soil fertilization depth can be adjusted according to fertilization requirements.