28results about How to "Improve weed control effect" patented technology

The invention discloses a herbicide composition for preventing and treating amaranthus retroflexus in alfalfa fields and application thereof, and belongs to the technical field of herbicides, the herbicide composition comprises a component A and a component B. The component A is imazethapyr / or 2, 4-sodium butyrate, and the component B is haloxyfop-R-methyl; the composition has good selectivity to alfalfa and can effectively prevent and control amaranthus retroflexus, the earlier the pesticide application period is, the better the control effect is, the damage to alfalfa plants is small, and normal growth of alfalfa is guaranteed. Due to the fact that the composition contains imazethapyr or 2, 4-sodium butyrate, and the ingredients have a certain residual period, the weeding effect can be continuously achieved in a long time, the pesticide application frequency is reduced, and the labor intensity and cost are reduced. The 2, 4-D sodium butyrate and the compound thereof have a better control effect on amaranthus retroflexus and are high in safety to medicago parasitica. The invention provides an effective and safe herbicide for controlling amaranthus retroflexus in alfalfa fields.

According to the herbicide composition and the application thereof, saflufenacil, pendimethalin and prometryn are scientifically proportioned and combined for the first time, due to the innovative matching, not only is the advantage complementation of herbicides achieved, but also the weeding effect is remarkably enhanced, the synergistic effect is obvious, the lasting period is long, and the herbicide composition has a good application prospect. The herbicide composition provided by the invention has an excellent control effect on field malignant weeds such as solanum nigrum and chenopodium album, and makes up for the defects and limitation of use of a single agent. Besides, the herbicide composition disclosed by the invention has high safety to important crops such as corn, cotton, soybeans, peanuts and the like, and does not damage the crops even in a compound planting mode, so that the problem that proper herbicide selection is lacked in the compound planting mode for a long time is successfully solved; powerful support is provided for promoting the sustainable development of modern agriculture.

The utility model belongs to the technical field of weeding, and particularly relates to a multifunctional forestry weeding device which comprises a connecting rod, a weeding motor and a power module are installed at the front end and the rear end of the connecting rod respectively, a blade is installed on an output shaft of the weeding motor, and a grab handle and a water pump are installed on the rear side of the connecting rod. A water outlet of the water pump is connected with one end of a material mixing pipe, the material mixing pipe comprises an outer pipe body, the bottom end of the outer pipe body is connected with a connector, a spray head is installed on the connector, the spray head is arranged above the rear portion of the blade, unpowered stirring blades are arranged on the inner side of the outer pipe body, and the outer pipe body is communicated with one end of a feeding pipe. The other end of the feeding pipe is inserted into a raw material bottle, and an air inlet pipe is inserted into the raw material bottle. When the blades rotate to mow grass, water is sprayed out through the spray heads to form a water curtain to achieve the dust suppression effect, meanwhile, herbicide is efficiently mixed with water flow under the action of the unpowered stirring blades, and the chemical weeding effect is achieved.

The invention relates to a herbicide composition and a preparation method thereof, and relates to the technical field of agricultural herbicides, and the herbicide composition is prepared from the following raw materials in parts by mass: 40-50 parts of a herbicide drug-loading system, 3-5 parts of carbon black, 0.5-1 part of an anti-ultraviolet agent, 0.5-1 part of an antioxidant, 5-15 parts of a compound high-dispersity emulsifier and 10-15 parts of filler. The preparation method comprises the following steps: mixing carbon black, an anti-ultraviolet agent, an antioxidant and a filler, uniformly stirring, adding a herbicide loading system and a compound high-dispersity emulsifier, and uniformly stirring to obtain a mixture; and carrying out mechanical pulverization and airflow pulverization on the mixture, drying, screening and packaging to obtain the herbicide composition. The herbicide composition has the effect of improving the stability of the herbicide composition, the decomposition rate of the herbicide can be effectively reduced, and the weeding effect of the herbicide composition is improved.

The invention discloses a 2-methyl-4-chlorophenoxyacetic acid glyphosate soluble concentrate and a preparation method thereof. The 2-methyl-4-chlorophenoxyacetic acid glyphosate soluble concentrate is prepared from the following raw materials: 60.9%-67.4% of glyphosate isopropylamine salt, 3.2%-6.3% of 2-methyl-4-chlorophenoxyacetic acid, 8%-12% of an auxiliary agent and the balance of water, and the auxiliary agent is prepared from a cosolvent, a synergist and water. The preparation method comprises the following steps: firstly, mixing 2-methyl-4-chloro-phenoxyacetic acid with the auxiliary agent, then mixing with the glyphosate isopropylamine salt and water, and filtering to obtain the 2-methyl-4-chloro-phenoxyacetic acid glyphosate soluble concentrate. The 2-methyl-4-chloro-phenoxyacetic acid glyphosate soluble concentrate prepared by the invention has the advantages of low temperature resistance, thermal storage resistance, stable product quality, meeting of environmental protection requirements, fast weeding speed, thorough weeding and better weeding effect.

The utility model discloses a kind of rice herbicide spraying devices, belong to spraying device field, including rack, sliding block, guide light axis, fish eye bearing, the inside installation of rack has adjusting unit, spraying mechanism, the adjusting unit includes motor, two-way screw rod, bearing seat, adjusting sliding block, limiting nut, pin shaft, one side installation of motor has two-way screw rod, two-way screw rod is installed between two bearing seats, the surface of two-way screw rod is connected with adjusting sliding block and limiting nut, the inside installation of adjusting sliding block has pin shaft, the spraying mechanism includes main cross bar, nozzle, rectangular clamping groove, the surface of main cross bar is equidistant and has been opened with multiple groups of cylindrical groove, nozzle is installed in cylindrical groove, the surface of nozzle is connected with rectangular clamping groove;Through the cooperation between above each device, different rice varieties, different growth stages of row distance change can be quickly adapted, ensure that herbicide is accurately sprayed in rice row, reduce the drug damage to rice plant, improve weeding effect.

The invention relates to the technical field of closed weeding, and discloses a closed weeding system and method suitable for heavy soil in hilly areas, and the system comprises a collection module which is used for collecting terrain flatness and environment information; the processing module is used for determining the initial spraying speed of the precise rape direct seeding machine according to the terrain flatness, judging whether the initial spraying speed is adjusted or not according to the environment humidity, and adjusting the initial spraying speed according to the environment humidity to obtain a final spraying speed value; the processing module is also used for determining the spraying initial pressure of the rape precision direct seeding machine according to the wind speed, judging whether to adjust the spraying initial pressure according to the environment humidity, and adjusting the spraying initial pressure according to the environment humidity to obtain a spraying pressure final value; and the decision module is used for spraying weeding pesticide to the ground according to the spraying speed final value and the spraying pressure final value. The precision and consistency of spraying are improved, weed control of the rape field in the hilly area can be improved, pesticide is saved, and the weeding efficiency is improved.

The utility model discloses a multifunctional rotary tillage weeding machine all-in-one machine relates to rotary cultivator technical field, including the tractor, the upper end of the rear side of tractor is fixedly connected with the work turnover seat, and the upper end of work turnover seat is rotatingly equipped with the turnover stand, the rear side of tractor is hinged with the pressing hydraulic telescopic rod corresponding to the both sides of turnover stand, and the rear side of tractor is equipped with the rotary tillage weeding machine all-in-one machine, and the rotary tillage weeding machine all-in-one machine is equipped with the rotary tillage weeding machine all-in-one machine. Through the arrangement of the tractor, the tractor can drag the rotary tillage mechanism, the cutting and soil preparation mechanism and the cleaning mechanism to move forwards to work, through the arrangement of the cutting and loosening teeth, weeds turned into soil by the rotary tillage mechanism can be cut off and smashed in the mode that the cutting and loosening teeth are dragged by the cutting and loosening teeth to move forwards, and weed regeneration is avoided; the cleaning mechanism can comb out stones and large weeds, then screening is conducted, the stones and the large weeds are removed, weed regeneration is avoided, and the weeding effect is improved.

This invention belongs to the field of agricultural machinery technology and discloses an intelligent agricultural weeding device for agricultural facilities, including a vehicle body. A collection device is located on the outer side of the vehicle body, comprising a connecting frame, a discharge shaft, a sliding column, an L-shaped rod assembly, a threaded block, a diagonal rod, a pushing block, a slot, a triangular block, a spring, and a barb. This invention utilizes the cutting teeth on the outer side of the rotary tiller to thoroughly chop weeds. Combined with the L-shaped rod assembly and the barb on the triangular block, it achieves integrated weeding and collection, preventing weeds from regrowth in the soil and improving weeding efficiency. The collected weeds can be centrally discharged for easy subsequent processing and resource recycling. A probe detects weed information in real time, and the control panel precisely controls the first, second, and third drive motors, achieving automated weeding operations without manual identification or operation, significantly improving weeding efficiency. Simultaneously, it accurately locates weed areas, reducing accidental damage to crops and ensuring agricultural production quality, which is beneficial for practical application and operation.

The invention provides a weeding composition containing foxacarb, the active ingredients of the weeding composition comprise foxacarb and pyroxasulfone, and the mass ratio of foxacarb to pyroxasulfone is (1-10): (1-10); or the active ingredients of the weeding composition comprise the foxacarb, the pyroxasulfone and the terbuthylazine, and the mass ratio of the foxacarb to the pyroxasulfone to the terbuthylazine is 1: (2-5): (15-25). The weeding composition disclosed by the invention has a remarkable synergistic effect, can be used for remarkably improving the weeding effect of a medicament, reducing the dosage of the medicament, slowing down the generation of pesticide resistance and relieving environmental pollution, can be used for preventing and removing annual weeds of corn, and has an excellent weeding effect.

The invention relates to the technical field of pesticide weeding, in particular to a mesosulfuron-containing weeding composition as well as a preparation method and application thereof. The mesosulfuron-methyl-containing weeding composition is prepared from the following components in percentage by mass: 1% of mesosulfuron-methyl, 18% of an emulsifier, 3% of a safener, 2.7% of a stabilizer, 1-3% of organic bentonite, 2-3% of white carbon black, 3-3.5% of a surfactant and the balance of soybean first-grade salad oil, the stabilizer is prepared by mixing triphenylethyl phenol polyether ammonium sulfate, a naphthalene sulfonate formaldehyde condensate and diatomite according to the mass ratio of 5: 7: 15, and the average particle size of the diatomite is 5.2 microns. The mesosulfuron-containing weeding composition provided by the invention has the advantages that the weeding effect is ensured, the environment safety, the crop safety and the economic cost are considered, and the mesosulfuron-containing weeding composition is an ideal herbicide choice.

The invention relates to a multifunctional additive for a glyphosate dispersible oil suspending agent as well as a preparation method and application of the multifunctional additive. The multifunctional additive comprises an auxiliary rheological agent, polyamide wax, fatty acid, a surfactant and fatty acid ester, and the auxiliary rheological agent is urea and phosphate; the surface active agent comprises a non-ionic surface active agent and an anionic surface active agent. The multifunctional additive provided by the invention is good in applicability, green, environment-friendly and convenient to use; the glyphosate dispersible oil suspending agent has the functions of emulsification, dispersion, rheology, stabilization and synergism, can effectively improve the problem of layering of separated oil in normal-heat storage of glyphosate dispersible oil suspending agents with different contents, improves the normal-heat storage stability of the glyphosate dispersible oil suspending agent, prolongs the pesticide effect shelf life of the glyphosate dispersible oil suspending agent, also can significantly improve the weeding efficiency, and has a broad application prospect. Therefore, the utilization rate of the preparation is effectively improved, the pesticide consumption is reduced, the ecological environment is protected, and the application cost of the preparation is reduced.

The utility model discloses a weeding device for landscape gardens, which belongs to the technical field of weeding machines and comprises a top plate. The mowing mechanism is arranged at the front end of the lower side of the top plate and used for cutting grass to be cut on the lawn; the grass storage box is arranged on the lower side of the top plate, located on the downstream of the mowing mechanism and used for collecting and storing the cut grass; and the conveying mechanism is arranged between the mowing mechanism and the grass storage box and used for conveying the cut grass into the grass storage box. Weeds on a lawn are cut through the cutting knife, the cut weeds are pushed into the grass storage box through the conveying mechanism to be stored, and the weeding efficiency and the weeding effect are greatly improved.

The invention belongs to the technical field of pesticide herbicides, and discloses an emulsion-suspension type pretilachlor herbicide which is obtained by uniformly mixing and dispersing pretilachlor emulsion in water and pretilachlor sustained-release agent microparticles according to the mass ratio of (4-40): 1. The dosage form not only contains an o / w type aqueous emulsion, but also contains suspended slow-release pretilachlor microparticles, has good dispersity and slow-release property, has a good weeding effect, is safe and environment-friendly, and has the effect of promoting the growth of rice. Different from the existing commonly used missible oil preparation, the pretilachlor herbicide provided by the invention avoids the use of irritant and toxic organic solvents, improves the production and application safety of pretilachlor herbicides, and protects human health and ecological environment. The invention further discloses a preparation method and application, application is more convenient, the effect is better, and the water emulsion-suspended pretilachlor herbicide has the advantages of being fast in early-stage release and slow in later-stage release and is beneficial for improving the weeding effect.

The invention discloses pyrithiobac-methyl ionic liquid and a preparation method and application thereof.The pyrithiobac-methyl ionic liquid is obtained by taking pyrithiobac-methyl as anions and combining the pyrithiobac-methyl with structure-modified quaternary ammonium cations, and after pyrithiobac-methyl is combined with cations with different carbon chain lengths, the pyrithiobac-methyl ionic liquid has high surface activity and thermal stability and can be used for preparing the pyrithiobac-methyl ionic liquid. Compared with a conventional pyrithiobac-methyl agent, the weeding efficiency and biological selectivity of the agent can be remarkably improved, the same weeding effect can be achieved in a targeted mode with a lower dosage, and therefore the purpose of environmental protection is achieved; the pyrithiobac-methyl ionic liquid microsphere is applied to preparation of the pyrithiobac-methyl ionic liquid microsphere, and a good pesticide effect can be achieved for a long time at a low pesticide concentration, so that a better weeding effect is achieved on the premise that side effects on the environment are reduced, and the pyrithiobac-methyl ionic liquid microsphere is greener and more environmentally friendly and has a great application prospect.

The invention relates to the technical field of weeding compositions and herbicides, and particularly discloses a weeding composition containing pyraflufen and a preparation method of the weeding composition. According to the weeding composition containing the pyraflufen-ethyl, the effective active ingredients are the imazamox and the pyraflufen-ethyl, and the mass ratio of the imazamox to the pyraflufen-ethyl is (1-60): (1-60). When the imazamox and the pyraflufen in the prepared weeding composition containing the pyraflufen are mixed for use, the synergistic effect is achieved, the weeding effect is enhanced, broadleaf weeds and grassy weeds can be controlled at the same time through mixed use, and the more comprehensive weeding effect is provided.

The present invention provides a herbicidal composition containing: at least one compound (I) selected from a compound represented by a formula (I) (wherein R1 represents a substituted or unsubstituted C1-6 alkyl group or the like, R2 represents a substituted or unsubstituted C1-6 alkyl group or the like, R3 represents a hydrogen atom, a substituted or unsubstituted C1-6 alkyl group or the like, and Q represents a substituted or unsubstituted phenyl group or the like) or a salt thereof; and a compound (II) having herbicidal activity such as haloxyfop-methyl, clethodim, S-metolachlor, epyrifenacil, isoxaflutole, sethoxydim and tepraloxydim.

The utility model provides a surrounding obstacle-avoiding weeding machine among grape plants, and relates to the technical field of weeding machines. The surrounding obstacle-avoiding weeding machine between grape plants comprises a connecting plate, a frame body is arranged on one side of the connecting plate, a translation assembly used for translation of the frame body is arranged on one side of the connecting plate, a weeding knife is slidably connected to the inner side of the frame body, and a lifting assembly used for lifting of the weeding knife is arranged on one side of the connecting plate. According to the surrounding obstacle-avoiding weeding machine among grape plants, a first motor drives a lead screw to rotate, the lead screw rotates to drive a sliding plate to translate, the sliding plate translates to drive a frame body to translate, the frame body translates to drive a weeding cutter to translate, the lead screw rotates to drive a gear to rotate, the gear is in meshed connection with a rack, the gear rotates to drive the rack to ascend and descend, and the rack ascends and descends to drive a limiting rod to ascend and descend; the limiting rod ascends and descends to drive the weeding knife to ascend and descend, so that the weeding knife avoids the grape plants and is folded, the problem that the grape plants are possibly damaged by the device in the weeding process is solved, and the weeding quality and safety of the device are improved.

This invention provides a herbicidal composition containing benzoxam, wherein the active ingredients comprise active ingredient A and active ingredient B; the mass ratio of active ingredient A to active ingredient B is 1:10-10:1; active ingredient A is benzoxam, and active ingredient B is one or both of pyrimethanil and propyzoxystrobin. This herbicidal composition exhibits a significant synergistic effect, significantly improving the herbicidal efficacy of the herbicide, reducing the dosage required, slowing the development of pesticide resistance, and mitigating environmental pollution. This herbicidal composition can be used for weed control in non-cultivated land, demonstrating excellent herbicidal efficacy.

The invention discloses a weed extruding and rubbing and liquid medicine coating device, and belongs to agricultural machinery. The upper end of a hollow shaft stepping motor is connected with a liquid conveying pipe through a clamping seat, the lower end of a motor shaft is fixedly provided with a hanging shaft through a coupler, a fixing sleeve is rotatably sleeved at the lower end of the hanging shaft, the lower end of the fixing sleeve is sequentially provided with an atomizing nozzle, a seepage cylinder and a cylinder type sun gear from the center to the outside, and the cylinder wall of the tooth root of the sun gear is provided with an axial long-strip-shaped through hole. The sponge axial boss is inserted into the through hole and the outer end is exposed; a rotatable cylindrical planetary gear is mounted on a gear shaft at the lower end of the crank arm and is constantly meshed with the sun gear, and a sponge boss is intermittently extruded by tooth crests; the device realizes physical and mechanical damage to stems and leaves of weeds, and at the same time, the herbicide liquid is applied to the damaged part, so that absorption of the weeds to the liquid is promoted, and the device has the outstanding characteristics of good herbicide effect, low consumption of the liquid, low loss of the liquid, low operation cost and light environmental pollution.

The invention relates to a paddy field weeding device, comprising: a first weeding mechanism, the first weeding mechanism comprising two weeding pieces, the weeding pieces are strip-shaped, the two weeding pieces are distributed in a herringbone shape on the same plane, and are hingedly connected by a hinge; an elastic connecting piece, the elastic connecting piece connects the two weeding pieces, so that when the two weeding pieces are subjected to external force, the angle between them can change, and when the external force disappears, the angle between the two weeding pieces returns to the original value under the elastic force of the elastic connecting piece; a connecting component, one end of which is connected to the first weeding mechanism, and the other end is connected to a walking device; the paddy field weeding device of the invention has a simple structure and a good weeding effect, the two weeding pieces are hingedly connected, and are connected with the elastic connecting piece to realize automatic opening and closing, and can change with the row width during movement between crop rows.

The present application relates to tea tree planting technical field, disclose a kind of weed removal device for tea tree planting, including drive trolley and setting on drive trolley shell one and shell two, shell two is fixedly arranged in the just above shell one, and shell one is communicated with shell two, the inside of shell two is provided with grass shoveling assembly;The present application is set by grass shoveling assembly, so that oil cylinder one drives mounting plate and oil cylinder two, shovel lifting, oil cylinder two drives two symmetrical inclined shovels open and close, can be in soil with weed and its root system associated part of soil whole shovel, solve the problem that only above stem of weed can be cut in prior art and cannot remove root system;Cooperate with soil breaking component to break up and separate the shoveling object, and weed and its root system are collected by grass storage box, realize the complete removal of weed from root system to stem, effectively avoid weed growth again due to root system residue, significantly improve weeding effect.

The utility model relates to the technical field of vegetable planting, and discloses a vegetable planting weeding tool which comprises a bottom plate, a placing frame, a driving assembly, an adjusting mechanism and a planing device, the placing frame is fixedly connected to the upper end of the bottom plate, and the driving assembly, the adjusting mechanism and the planing device are all arranged below the bottom plate; the adjusting mechanism comprises a fixing plate A, a mounting plate A, a motor A, a half gear A, a half gear B, a connecting rod A, a connecting rod B, a connecting rod C, a fixing rod, a mounting plate B, a motor B and a cutting blade; and the fixed plate A is fixedly connected to the lower end of the bottom plate. According to the weeding tool for vegetable planting, by arranging the adjusting mechanism, adjustment and change of the weed cutting position are achieved, the problem that in the prior art, the mowing position needs to be changed by changing the position of the whole tool, time and labor are wasted is solved, weeds at corners can be conveniently cleaned, and then the weeding efficiency is improved.

The invention provides a weeding composition for paddy fields, which is prepared by compounding iodosulfuron-methyl sodium salt (also called iodosulfuron-methyl sodium salt) and oxaziclomefone, the weight ratio of the effective components of iodosulfuron-methyl sodium salt to oxaziclomefone is 1: 1-1: 200, and the optimal ratio is 1: 20-1: 60. According to the weeding composition, the iodosulfuron-methyl sodium and the oxaziclomefone are accurately compounded, the weight ratio of the effective components is optimized, the multiple beneficial effects of efficient prevention and removal of rice field weeds, remarkable synergistic interaction, long lasting period, safety, environmental protection and the like are achieved, and the weeding composition has remarkable technical advantages and application value.

The utility model discloses a variable chassis for a row-crossing self-propelled paddy field weeding robot and a weeding mechanism. The variable chassis comprises a chassis frame, two fixed frame pipes and four movable frame pipes. The weeding mechanism comprises a connecting template, a rotating motor, a drilling shaft, a connecting bearing subassembly, a gripper subassembly and a drill bit; the connecting template is rotatably connected with a drilling shaft through a connecting bearing subassembly, the upper end part of the drilling shaft is connected with a rotating motor, and the lower end part of the drilling shaft is connected with a drill bit; and the gripper subassembly is arranged on the drilling shaft connected between the bearing subassembly and the drill bit. The wheel track can be conveniently adjusted through a chassis variable structure so as to be suitable for different ridge distances of a rice field; by optimizing the weeding mechanism, weeds with firm root systems can be effectively handled, the root systems of the weeds can be effectively destroyed through rotation, on the basis, the weeds can be pulled out through the linked gripper structure, and the weeding effect can be effectively improved.

The invention relates to the technical field of pesticide compounding, in particular to an anilofos and penoxsulam dispersible oil suspending agent and a preparation method thereof. The dispersible oil suspending agent is prepared from the following components in percentage by weight: 23.5% of anilofos technical, 1.5% of penoxsulam technical, 10.0% of calcium dodecyl benzene sulfonate, 6% of fatty alcohol-polyoxyethylene ether, 6% of organic bentonite, 2% of white carbon black and the balance of methyl oleate, the mass fraction of penoxsulam in the penoxsulam technical is greater than or equal to 98.0%, and the mass fraction of calcium dodecyl benzene sulfonate in the penoxsulam technical is greater than or equal to 10.0%. The pH value of the anilofos active compound is 4.0 to 7.0, and the pH value of the penoxsulam active compound is 4.0 to 7.0; the invention provides the efficient, stable and environment-friendly anilofos and penoxsulam dispersible oil suspending agent and the preparation method thereof, the suspending agent has an excellent weeding effect, the pesticide consumption can be remarkably reduced, the negative influence on the environment is reduced, meanwhile, the preparation process is simple, the operation is easy, and the suspending agent is suitable for large-scale production and use.

The invention discloses a herbicidal composition and its application, and relates to the field of pesticides. The composition comprises the following raw materials in percentage by weight: 5-60% of propanil, 1-40% of triclopyr, 0.1-22% of picloram, 3-15% of dispersant, 2-10% of wetting agent, 10-40% of disintegrant, and the rest of filler. The water-dispersible granules of the ternary composite composition of the invention can ultimately solve the problems of disintegration and suspension after heat storage by screening suitable dispersants, wetting agents and fillers. The prepared water-dispersible granules have the characteristics of fast disintegration, good dispersibility, high suspension rate and good stability, and are more conducive to the exertion of drug efficacy.

The utility model relates to the technical field of nursery weeding, and discloses a nursery weeding device which comprises a weeding machine cover, a movable pushing frame is fixed to the center of the top of the weeding machine cover, handles are symmetrically welded to the outer wall of the top end of the movable pushing frame, a fixing frame is arranged at the front end of the movable pushing frame, the fixing frame is fixed to the top of the movable pushing frame, and a mounting frame is slidably arranged in the fixing frame. A weeding shovel frame is rotatably mounted in the mounting frame, a rolling shaft is rotatably arranged in the weeding machine cover, and a plurality of weeding knives are distributed on the outer wall of the rolling shaft in a staggered mode in the circumferential direction. A plurality of weeding cutters are arranged on the surface of the rolling shaft in a staggered mode, bent cutter heads are arranged at the ends of the weeding cutters, the bent cutter heads are driven to rotate along with rotation of the rolling shaft to make contact with weeds in a nursery garden so that the weeds can be rapidly cut off, and therefore the good weeding effect is achieved; the weeding device is used for shoveling large weeds and gravels on the ground, and the weeding effect on the nursery is further improved.