40 results about "Pendimethalin" patented technology

This invention relates to a hybridoma cell line secreting a monoclonal antibody against pendimethalin and its application, belonging to the field of immunoassay. The hybridoma cell line secreting the pendimethalin monoclonal antibody of this invention was deposited on November 12, 2025, at the China General Microbiological Culture Collection Center (CGMCC), located at No. 3, Courtyard 1, Beichen West Road, Chaoyang District, Beijing, with accession number CGMCC No. 46744. The pendimethalin monoclonal antibody secreted by this hybridoma cell line is used for the analysis and detection of pendimethalin residues in food safety testing. The pendimethalin monoclonal antibody cell line obtained by this invention can be used for immunoassay detection, exhibiting good detection sensitivity and specificity (IC50) for pendimethalin. 50 The value was 1.87 ng / mL.

The application discloses a kind of herbicidal compositions, the composition includes active ingredient A and active ingredient B, wherein active ingredient A is formula (I) compound, active ingredient B is selected from one or more of pendimethalin, flufenacet and oxaziclomefone.The mass ratio of active ingredient A and active ingredient B of the composition is 1:50-50:1.The component of the application is reasonable, and the activity and herbicidal effect are not simply superimposed of each component, compared with single preparation, with the characteristics of significant herbicidal effect, low drug dosage, broad spectrum of weeds, good crop safety.

1. Name of the designed product: label (pendimethalin). 2. Use of the designed product: used for packaging label. 3. Design points of the designed product: combination of shape and pattern. 4. Picture or photo best showing the design points: front view. 5. Back view of the designed product is omitted because it is not easy to see or not visible during use; front view, left view, right view, top view and bottom view of the designed product are omitted because the designed product is a flat product.

The invention belongs to the technical field of compound herbicides, and relates to a clomazone and pendimethalin compounded micro-capsule suspension type herbicide. The herbicide is prepared from 8%-15% of clomazone, 24%-30% of pendimethalin, 1.5%-8% of an oil-phase solvent, 1%-6.5% of a water-phase auxiliary agent, 1.5%-12% of a water-based wall material, 1.5%-8% of a post-treatment stabilizing auxiliary agent and the balance softened water. The preparation process comprises the steps of oil phase preparation, water phase preparation, water-based wall material preparation, shearing emulsification and capsule forming and curing. According to the herbicide, clomazone and pendimethalin are compounded, so that the weed control spectrum can be expanded, the control effect can be improved, and the generation of drug resistance of weeds can be delayed; the water-phase additive, the post-treatment stabilizer and the like are safe and non-toxic, the system compatibility is good, the problems of microcapsule agglomeration, leakage, poor suspension property and the like are avoided, the preparation process is stable and reliable, and uniform and stable product quality is guaranteed.

The utility model discloses an automatic liquid preparation device for a comb-shaped dispersing agent of a pendimethalin suspending agent, which comprises a main body unit, a liquid preparation unit and a control unit, the inlet and outlet unit comprises two liquid inlet boxes, the two liquid inlet boxes are fixedly communicated with the top surface of the liquid preparation tank, the surfaces, far away from the liquid preparation tank, of the two liquid inlet boxes are fixedly communicated with material pipes, the surfaces, far away from the liquid inlet boxes, of the liquid preparation tank are fixedly communicated with liquid outlet pipes, and valves are arranged on the liquid outlet pipes. The rotating rod is driven by the servo motor to rotate, so that liquid materials in the liquid preparation tank are continuously stirred by the plurality of stirring rods, different liquids are fully mixed to form a uniform solution, the double-end plate pushes the convex plates on the two sides to translate, the liquid inlet flow is dynamically adjusted, the liquid preparation proportion deviation caused by non-uniform flow is effectively avoided, and the liquid preparation efficiency is improved. The accurate proportion of each component during liquid preparation is ensured, and the liquid preparation quality of the comb-shaped dispersing agent is improved.

The present application provides a kind of emulsifiable concentrate preparation containing pendimethalin and metamifop, which comprises pendimethalin, metamifop, oleyl polyethylene glycol ether, 2,4,6-tri (1-phenylethyl) polyoxyethylene phosphate and solvent.In the present application, by screening the adjuvant system and its compatibility and the content of each component, an emulsifiable concentrate preparation with excellent performance is obtained, especially the stability of the active ingredients such as pendimethalin is greatly improved, overcoming the defect that pendimethalin is easy to decompose and has low stability in existing complex preparation.

The invention relates to a novel bacterial strain capable of degrading pesticides, in particular to a novel bacterial strain Acinetobacter oryzae F9-1, and a preparation method of the novel bacterial strain Acinetobacter oryzae F9-1. A new strain Acinetobacter oryzae F9-1 is obtained by separation, screening and identification from a soil sample in Hami region of Xinjiang, the strain is subjected to physiological and biochemical characteristic detection, the new strain F9-1 shows that the bacterial colony is small, the surface is smooth, the new strain F9-1 is white and semitransparent on an NB plate, the results of Gram staining, catalase and indole experiments and the like are positive, and the results of oxidase, V.P tests, urease and the like are negative. The strain F9-1 can hydrolyze hydrogen peroxide; l-alanine, lactic acid, L-aspartic acid, quinic acid and the like can be utilized, the strain is sensitive to 8% NaCl, lincomycin, nalidixic acid, chloramphenicol and the like, fluridone and pendimethalin can be degraded, and the strain has the advantages of being environmentally friendly, efficient, economical, sustainable and the like and is an effective means for solving the pesticide pollution problem.

The invention relates to the technical field of water-saving and drought-resistant rice cultivation, and particularly discloses a close planting cultivation method for conventional water-saving and drought-resistant rice, which comprises the following steps: increasing the seeding rate of the conventional water-saving and drought-resistant rice to 5-7 kg / mu for dry direct seeding and close planting; after sowing, drip irrigation and soil moistening are conducted, pendimethalin and pretilachlor are sprayed in a mixed mode at a time for closed weeding, and chemical weeding does not need to be conducted again in the whole growth period. According to the close planting cultivation method, weed growth can be effectively inhibited, the use frequency of herbicide is reduced, and the pesticide application cost is reduced by 115 yuan / mu; meanwhile, the yield per mu of fresh grains is 519 kilograms, the yield is increased by 29.1%, the comprehensive economic benefit is increased by 379.5 yuan / mu, and the method is suitable for planting in water-deficient areas and sloping fields and has the remarkable advantages of yield increase and environmental protection.

The invention relates to a microbacterium X10 with a broad-spectrum pesticide degradation function and application of the microbacterium X10, the microbacterium X10 is named as a microbacterium X10 strain, the preservation number of the microbacterium X10 strain is GDMCC No: 66970, and the preservation date of the microbacterium X10 strain is September 17, 2025. The strain has an efficient degradation effect on a plurality of typical pesticides such as dinotefuran, carbendazim, atrazine, pendimethalin and lambda-cyhalothrin, and also has a plurality of probiotic functions of secreting indole-3-acetic acid, dissolving inorganic phosphorus, generating siderophores, antagonizing phytopathogens and the like. The strain can effectively relieve stress of pesticides on plants and promote growth of the plants. The strain can be used for repairing pesticide-polluted soil and promoting plant growth, and has a wide application prospect in green agriculture development.

This application provides a herbicidal composition for controlling weeds in dryland rice fields in mountainous areas, its preparation method, and its uses. The herbicidal composition consists of pendimethalin suspension concentrate, pyrimisulfuron-methyl oil dispersible suspension concentrate, and a special agricultural synergist, with a volume ratio of (30-70):(5-10):(20-55). The herbicidal composition of this application achieves a comprehensive control efficacy of over 97% against grasses and broadleaf weeds in direct-seeded rice fields in dryland areas, and is particularly suitable for soil treatment in direct-seeded rice fields in mountainous areas, exhibiting excellent comprehensive control efficacy. It maintains excellent control efficacy even with a 29% reduction in herbicide dosage. Furthermore, this composition is suitable for aerial spraying, helping to reduce pesticide costs and environmental pollution.

The invention discloses an ammonium ferric citrate carbon dot gold nano enzyme and application thereof in rapid detection of pendimethalin, and belongs to the technical field of chemical analysis and detection. The nano-enzyme is prepared from ammonium ferric citrate carbon dot reduced gold nanoparticles, and has both peroxidase activity and surface enhanced Raman activity. During detection, nano-enzyme and pendimethalin are incubated to cause aggregation, so that the color of a solution becomes light, the absorbance at 550nm of gold nanoparticles is reduced, the catalytic activity of the enzyme is inhibited, and a Raman signal of a substrate at 1605cm <-1 > is reduced. A colorimetric-Raman dual-mode detection method is established on the basis, large equipment is not needed, detection is completed within 15 minutes, the detection limit of a colorimetric method is 19.5 nmol / L, the detection limit of a Raman method is 1.88 nmol / L, the anti-interference performance is high, the method can be used for on-site rapid detection of pendimethalin in samples such as tobacco leaves, and the detection accuracy and reliability are remarkably improved.

The invention discloses a method for synthesizing pendimethalin through continuous nitration, and belongs to the field of pesticide synthesis. The method for synthesizing the pendimethalin comprises the following steps: respectively metering an N-amylamine solution and nitric acid, and simultaneously conveying the N-amylamine solution and the nitric acid into a tubular reactor for reaction; and the nitrated material flows out from an outlet, and is separated and purified to obtain a pendimethalin product. Compared with the prior art, the synthetic method disclosed by the invention can realize continuous production of pendimethalin, is high in reaction efficiency and good in safety, can greatly reduce the content of a by-product nitrosamine in the product, and has very good popularization and application values.

The invention relates to the technical field of environmental microbiological technology and agricultural bioremediation, and discloses a rhodococcus bacterium X-20 and application thereof. The Rhodococcus sp. X-20 can efficiently degrade various pesticides in liquid and soil environments, including carbendazim, dinotefuran, atrazine, pendimethalin and cyhalothrin, and especially shows specific efficient degradation ability to carbendazim. In addition, the strain has various plant probiotic functions: the strain can secrete indole-3-acetic acid (IAA), generate iron carriers, dissolve inorganic phosphorus and antagonize phytophthora nicotianae, and the growth of tobacco seedlings can be remarkably promoted. Field experiments show that the strain can relieve growth inhibition of compound pesticide pollution on tobacco, and the strain can be used for preparing microbial agents and applied to bioremediation of pesticide-polluted soil and green agriculture.

Herbicidal concentrate compositions containing glyphosate salts and tank mix compositions containing a combination of glyphosate salt and dicamba salt herbicides are described. A method of preparing a tank mix composition comprising a glyphosate component and a dicamba component is also described. The method includes combining a glyphosate concentrate composition, a dicamba composition comprising one or more salts of dicamba and dilution water to form the tank mix composition. The glyphosate concentrate composition comprises a glyphosate salt selected from the group consisting of the monoethanolamine salt, the potassium salt, and mixtures thereof at a glyphosate loading of at least about 240 grams acid equivalent per liter (g a.e. / l), and the pH of a 5 wt. % acid equivalent dilution of the glyphosate concentrate composition is from about 5 to about 6.5.

The utility model discloses a pendimethalin production wastewater purification treatment device which comprises a bottom plate and a treatment tank mounted at the top of the bottom plate, and further comprises a bent plate mounted at one end of the outer wall of the top of the bottom plate, a rotating pipe is rotationally mounted on the outer wall of the top of the bent plate, and a plurality of stirring rods distributed at equal intervals are mounted on the outer wall of one side of the rotating pipe; a combination plate is installed on the outer wall of one side of the rotating pipe, and a fixing opening is formed in the outer wall of one side of the rotating pipe. According to the pendimethalin production wastewater purification treatment device disclosed by the utility model, after the wastewater is subjected to oxidation treatment, the filtering assembly can be driven by the driving assembly to ascend, so that precipitates generated by reaction in the wastewater are intercepted and are driven to ascend together, and impurities in the wastewater are taken out; when the filtering structure at the bottom of the filtering assembly is lifted to be flush with the tank opening of the treatment tank, the filtering assembly rotates along with the rotating pipe, impurities on the filtering structure are blocked and accumulated by the baffle, the impurities are conveniently and directly pushed into the collecting box, and the impurities are conveniently and rapidly cleaned.

The invention provides a chemical prevention and control method for artemisia weeds in leguminous forage fields and a herbicide composition thereof, and belongs to the technical field of weed prevention and control, and the chemical prevention and control method comprises the following steps: (1) before sowing, spraying stems and leaves with a killing herbicide to kill germinated weeds; (2) after sowing, spraying a soil closed herbicide on the earth surface to form a pesticide film to inhibit weed germination; the killing type herbicide is a glufosin.glyphosate compound agent or a 2-methylglufosin.glufosinate-ammonium compound agent; the soil closed herbicide is a binary compound composition of flumioxazin and imazethapyr, or a triple compound composition of pendimethalin missible oil, flumioxazin and imazethapyr; according to the invention, the prevention and control effect and safety of the compound combination of different herbicides on the artemisia weeds in the leguminous forage field are defined, a technical basis is provided for scientific prevention and control of the weeds in the leguminous forage field in the northern semi-arid region, and the herbicide has important practical significance for improving the yield and quality of the forage.

This invention relates to the field of pesticide production wastewater treatment technology, and particularly to a dimethoate acidic wastewater recovery system, which overcomes the shortcomings of existing technologies. The system includes a pretreatment unit, a multi-stage extraction unit, a separation and purification unit, a solvent recovery unit, and a central control unit. The outlet of the pretreatment unit is connected to the inlet of the multi-stage extraction unit, and the pretreatment unit includes a pH adjustment tank, a filter, and a storage tank. The multi-stage extraction unit employs a three-stage countercurrent extraction tower, and its outlet is connected to the inlet of the separation and purification unit. The separation and purification unit includes a falling film evaporator and a molecular distillation device, and its outlet is connected to the solvent recovery unit, which includes a plate condenser and a distillation column. Compared with existing technologies, this invention effectively reduces energy consumption and cost, and improves recovery rate and loss rate.

The invention belongs to the technical field of pest control, and particularly relates to a method capable of effectively preventing and controlling psidium guajava leaf tortrix. The invention relates to an insecticidal composition. The insecticidal composition is prepared by binary compounding of an effective component I and an effective component II, the effective component I is pyridalyl, and the effective component II is guadipyr; the mass ratio of the effective component I to the effective component II is (1-100): (100-1). According to the prevention and control method, the insecticidal composition is selected for foliage spraying, meanwhile, the guava fruits are subjected to bagging treatment, and therefore the angutortria can be effectively prevented and controlled. When the effective components in the insecticidal composition are compounded, the insecticidal composition has a synergistic effect on psidium guajava leaf roller, and compared with a single effective component, the insecticidal composition can improve the prevention and control effect on the psidium guajava leaf roller, reduce the use dosage of pesticides and reduce the influence on the environment; in addition, generation and development of pesticide resistance can be delayed, the service life of the pesticide is prolonged, and comprehensive prevention and control of agricultural pests are facilitated.

The present invention relates to a method for rapid detection of chlorfenac, emathine, fenfluramide, pendimethalin and metalaxyl in aquatic products. The method can realize simultaneous detection of five compounds, namely chlorfenac, emathine, fenfluramide, pendimethalin and metalaxyl in aquatic products. The method has simple, rapid and sensitive detection and good purification effect.

The invention belongs to the technical field of pesticide weeding, and discloses a weeding composition containing pyroxasulfone and application thereof.The weeding composition comprises an active ingredient A, an active ingredient B and an active ingredient C. The active ingredient A is pyroxasulfone, the active ingredient B is clomazone, the active ingredient C is pendimethalin, and the active ingredient B is dimethalin. The mass ratio of the active component A to the active component B to the active component C is (1-5): (5-50): (3-50). The weeding composition disclosed by the invention can be used for preventing and killing annual broadleaf weeds and grassy weeds in soybean fields, has a remarkable prevention and killing effect, and has the advantages of good quick-acting property, long lasting period, safety to crops and the like.

The present application relates to the technical field of pendimethalin wastewater treatment, and particularly relates to a pendimethalin wastewater treatment method, which comprises the following steps: step 1, adding ferrous oxide or ferrous hydroxide to the wastewater to adjust the pH of the wastewater to neutral; step 2, adjusting the pH of the primary filtrate to 2-5 by using inorganic acid, and adding an iron-carbon mixture with a mass ratio of 1:0.5-2 to perform a redox reaction; and step 3, introducing the secondary filtrate into 2-5 reaction kettles in series, and adding hydrogen peroxide in 1-3 portions according to a mass ratio of 15-25:1 between the hydrogen peroxide and COD. The pendimethalin wastewater treatment method can quickly reduce nitrate into nitrogen oxide or ammonia gas through the original cell effect of the iron-carbon mixture in the solution, and can efficiently and quickly treat the nitrate, and finally the iron ions and ferrous ions can generate corresponding hydroxides.

The application relates to a new pesticide-degrading strain, in particular to a strain New bacteria Acinetobacter oryzae F9-1 . A strain F9-1 is obtained by separation, screening and identification from a soil sample in Hami City of Xinjiang Uygur Autonomous Region New bacteria Acinetobacter oryzae F9- 1 The strain is subjected to physiological and biochemical characteristic detection, the strain F9-1 shows small colonies, smooth surface, white semi-transparency on NB plates, and the results of gram staining, contact enzyme and indole experiment are positive, and the results of oxidase, V.P test and urease are negative. The strain F9-1 can hydrolyze hydrogen peroxide, can utilize L-alanine, lactic acid, L-aspartic acid and quinine acid, is sensitive to 8% NaCl, lincomycin, naphthylidine ketone acid and chloromycetin, and can degrade fluazifop-butyl and pendimethalin, and has the advantages of environmental protection, high efficiency, economy and sustainability, and is an effective means for solving the problem of pesticide pollution.

The invention relates to a daumonas sp. X11 and an application of the daumonas sp. X11 in pesticide degradation and plant growth promotion, the daumonas sp. X11 is named as a daumonas sp. X11 strain, the preservation number is GDMCC No: 66971, and the preservation date is September 17, 2025. The daumonas sp. X11 is named as a daumonas sp. X11 strain, the preservation number is GDMCC No: 66971, and the preservation date is September 17, 2025. The strain has an efficient degradation effect on a plurality of typical pesticides such as dinotefuran, carbendazim, atrazine, pendimethalin and lambda-cyhalothrin, and also has a plurality of probiotic functions of secreting indole-3-acetic acid, dissolving inorganic phosphorus, generating siderophores, antagonizing phytopathogens and the like. The strain can effectively relieve stress of pesticides on plants and promote growth of the plants. The strain can be used for repairing pesticide-polluted soil and promoting plant growth, and has a wide application prospect in green agriculture development.

The invention discloses an integrated pendimethalin finished product processing kettle, and relates to the technical field of pesticide processing equipment.The integrated pendimethalin finished product processing kettle comprises a kettle body fixedly installed on a bearing frame, a top cover is arranged over the kettle body in a liftable mode, and the integrated pendimethalin finished product processing kettle further comprises a lifting mechanism, a filtering mechanism and a piston plate which are arranged in the kettle body; and the piston plate is driven by a lifting mechanism to do vertical reciprocating motion so as to push and extrude the mixed liquid in the kettle body. The piston plate ascends and descends to drive the mixed liquid to circularly flow between the kettle body and the filter cartridge; when the piston plate ascends, the mixed liquid enters the filter cartridge through the second guide pipe, and insoluble substances are intercepted by the filter cartridge; and when the piston plate descends, the mixed liquid flows through the filter cartridge again through the first guide pipe, so that the mixed liquid is repeatedly filtered, insoluble substances are completely isolated in the filter cartridge and can be regularly discharged through the blow-off pipe, the problems of finished product layering, precipitation and the like caused by insoluble substance residues are fundamentally avoided, and the purity and the stability of a pendimethalin finished product are ensured.

The invention discloses a nitration reaction kettle for pendimethalin production, and relates to the technical field of nitration reaction kettles.The nitration reaction kettle comprises a tank body, a cleaning and stirring mechanism is arranged in the tank body and used for stirring chemical substances in the tank body, and the cleaning and stirring mechanism comprises a stirring assembly, a cleaning assembly and a driving mechanism; the driving assembly drives the stirring assembly to stir and mix chemical substances added into the tank body, and meanwhile drives the cleaning assembly to scrape and clean attachments on the inner wall of the tank body in a passive rotation mode. The two groups of shoveling frames are fixed on the stirring frame through the transverse plates and can directly scrape attached cakes when synchronously rotating along with the stirring frame; meanwhile, the groove-shaped structure of the shoveling frame can temporarily collect the scraped cakes, the cakes are prevented from directly falling into the tank body, the cakes are actively removed and collected before falling, local concentration fluctuation caused by the fact that high-concentration acid or by-product particles are mixed into reaction liquid is effectively avoided, and the purity stability of pendimethalin is remarkably improved.

The utility model discloses a pendimethalin wastewater oxidation treatment device which comprises a treatment tank and a medicament tank, and further comprises a mounting rack mounted on the treatment tank, a liquid scattering component is rotationally mounted in the middle of the outer wall of the top of the mounting rack, a connecting plate is mounted on the outer wall of the liquid scattering component, a stirring component is rotationally mounted at one end of the outer wall of the top of the connecting plate, and the stirring component is mounted on the outer wall of the top of the mounting rack. And the top of the liquid scattering assembly is rotationally connected with a liquid supply pipe. According to the waste water treatment device, an oxidizing agent in the agent tank can be pumped into the liquid scattering assembly through the liquid pump, meanwhile, the motor drives the liquid scattering assembly to rotate under the action of the transmission assembly, and the liquid scattering assembly is used for stirring waste water and spraying the oxidizing agent into the waste water at the same time; the liquid sprinkling assembly can drive the connecting plate and the stirring assembly to rotate while rotating, so that the water body sprayed with the oxidizing agent is further stirred, the mixing speed and the mixing uniformity of the oxidizing agent and the wastewater are effectively improved, and the effect and the speed of the oxidation reaction are further improved.

The invention relates to the technical field of pesticide production waste liquid treatment, in particular to a pendimethalin acid waste liquid recovery system which overcomes the defects in the prior art and comprises a pretreatment unit, a multi-stage extraction unit, a separation and purification unit, a solvent recovery unit and a central control unit. An outlet of the pretreatment unit is connected with an inlet of the multi-stage extraction unit, the pretreatment unit comprises a pH adjusting tank, a filter and a storage tank, the multi-stage extraction unit adopts a three-stage counter-current extraction tower, and an outlet of the multi-stage extraction unit is connected with an inlet of the separation and purification unit; the separation and purification unit comprises a falling film evaporator and molecular distillation equipment, an outlet of the separation and purification unit is connected with the solvent recovery unit, and the solvent recovery unit comprises a plate-type condenser and a rectifying tower. Compared with the prior art, the treatment energy consumption and cost are effectively reduced, and the recovery rate and the loss rate are improved.

The invention relates to the technical field of pesticide waste liquid treatment, in particular to a method for recovering hydrochloric acid from pendimethalin acid waste liquid, which solves the defects in the prior art and comprises the following steps: S1, pretreatment of waste liquid: filtering the pendimethalin acid waste liquid, removing suspended solid impurities, adding activated carbon to adsorb organic pollutants, and filtering to obtain the waste liquid; stirring for 30-60 minutes and then filtering; s2, reduced pressure distillation and concentration: the pretreated waste liquid is placed in a corrosion-resistant distillation kettle for reduced pressure distillation, water and part of HCl are evaporated, and crude hydrochloric acid containing 20-30% of HCl is obtained; the crude hydrochloric acid is introduced into an absorption tower and subjected to countercurrent absorption through deionized water, a pure hydrochloric acid solution with the concentration larger than or equal to 30% is obtained, tail gas is absorbed through alkali liquor and then reaches the standard to be discharged, and compared with the prior art, energy consumption can be effectively reduced, and the recycling purity is improved.

The invention discloses a weeding composition which comprises an active component A and an active component B. The active component A is a compound shown in the formula (I), and the active component B is pendimethalin. The mass ratio of the active component A to the active component B of the composition is (1: 28)-(10: 1). The invention further relates to application of the weeding composition in controlling germination or growth of weeds in useful plants, and the weeding composition is particularly suitable for controlling germination or growth of weeds in paddy fields.

This invention belongs to the field of integrated weed control technology in agriculture, specifically relating to a weed control composition, method, and application for weed control in new wheatgrass seed fields. It includes two treatments: post-sowing soil treatment, where, 1-3 days after sowing, a mixture of pendimethalin EC and a sand-fixing agent is sprayed onto the soil; and seedling foliar treatment, where, at the 3-5 leaf stage of new wheatgrass and the 2-4 leaf stage of weeds, a mixture of 2,4-D dimethylamine salt and the same sand-fixing agent is sprayed onto the weed foliage. The dosage of pendimethalin EC is 150-200 mL / mu, and the dosage of 2,4-D dimethylamine salt is 80-100 mL / mu. This invention combines chemical weed control with physical sand fixation, effectively controlling weeds while reducing phytotoxicity and environmental risks, providing a safe, efficient, and environmentally friendly integrated weed control solution for new wheatgrass seed fields.