TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The sulfonylurea or its salt is metsulfuron-methyl, chlorosulfuron, amidosulfuron, azimsulfuron, bunsulfuron methyl, chlorimuron-ethyl, cinosulfuron, cyclopropyl ether sulfuron, ethametsulfuron-methyl, ethoxysulfuron, flazasulfuron, flucarbazone-sodium, flupyrsulfuron, sodium flupyrsulfuron, foramsulfuron, halosulfuron-methyl, imazosulfuron, sodium iodosulfuron-methyl, mesosulfuron-methyl, nicosulfuron, oxasulfuron, chlorimuron, propoxycarbazone, sodium propoxycarbazone, prosulfuron, halosulfuron, rimsulfuron, sulfometuron-methyl, sulfosulfuron, thifensulfuron-methyl, triasulfuron, tribenuron-methyl, trifloxysulfuron, sodium trifloxysulfuron, triflusulfuron-methyl or tritosulfuron; and pyridines is clopyralid, dithiopyr, fluroxypyr, thiazopyr, triclopyr, haloxydine, trifluoropyridinoline, picloram or fluridone. The composition further comprises at least two carriers, and surfactant(s). The surfactant is emulsifier, dispersing agent or wetting agent; except the surfactant, the carrier is white carbon black, kaolin, diatomite, bentonite, light calcium carbonate, plaster, attapulgite, soluble starch, urea, ammonia fertilizer, urea and ammonia fertilizer, glucose, maltose, sucrose, citric acid, anhydrous potassium carbonate, anhydrous sodium carbonate, anhydrous potassium bicarbonate, anhydrous sodium sulfate, anhydrous sodium bicarbonate, anhydrous potassium carbonate and anhydrous potassium bicarbonate, and/or anhydrous sodium carbonate and anhydrous sodium bicarbonate. The dispersing agent is sodium lignosulfonate, calcium lignosulfonate, sodium methylene bis-naphthalene sulfonate, polyvinylpyrrolidone, alkylamide taurine salt, sodium polyacrylate, sodium methylene bis-methyl-naphthalene sulfonate, sodium salt of alkyl naphthalene sulfonate polycondensate and/or sodium methylene bis-naphthalene sulfonate formaldehyde condensation compound. The wetting agent is sodium dodecyl sulfate, Teepol(RTM: aqueous detergent), sodium dodecyl benzene sulfonate, fatty alcohol polyethylene glycol ether sulfate, fatty alcohol polyoxyethylene ether, alkyl naphthaldehyde condensation compound, alkyl naphthalene sulfonate, polyoxyethylene nonylphenyl ether and/or sorbitan fatty acid ester polyoxyethylene alkyl ether. The composition is soluble powder, soluble granule, water dispersing agent, water aqua, wettable powder, soluble liquid agent, miscible oil, aqueous emulsion, microemulsion, water suspending agent and/or oil suspending agent. The solvent is aromatic solvent or alcohol solvent. Preferred Contents: The weight ratio of sulfonylurea or its salt to pyridines to acetochlor is 0.5-5:0.5-10:0.5-40. The weight percentage content of active ingredient in herbicide composition is 0.6-96%. The soluble granule, soluble powder, water dispersing agent and wettable powder comprise (%) active ingredient (0.6-96), wetting agent (1-20), dispersing agent (1-20), and carriers (balance); aqueous emulsion comprises (%) active ingredient (0.6-96), emulsifier (1-30), cosolvent (1-30), thickening agent (0.1-5), antifreeze (1-20), solvent (1-30) and water (balance); the miscible oil comprises (%) active ingredient (0.6-96), cosolvent (0.1-30), emulsifier (1-30) and solvent (balance); the solvent is aromatic solvent or alcohol solvent; the water suspending agent comprises active agent (0.6-96), dispersing agent (1-30), wetting agent (0.1-30), antifreeze (0.01-30), thickening agent (0.01-30), antifoaming agent (0.1-5), emulsifier (1-30) and water (balance); and oil suspending agent comprises active agent (0.6-96), dispersing agent (1-30), wetting agent (0.1-30), thickening agent (0.01-30), defoaming agent (0.1-5), emulsifier (1-30) and oil (balance).    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The emulsifier is polyoxyethylene fatty acid ester, polyoxyethylene fatty alcohol ether, polyoxyethylene fatty ammonia, ethoxy castor oil, glyceryl monolaurate polyoxyethylene ether, sorbitan fatty acid ester polyoxyethylene ether, sodium alkyl-diglycol ether-sulfonate, silicone, castor oil polyoxyethylene ether, fatty acid polyglycol ester, nonylphenol polyoxyethylene ether, alkylaryl polyoxyethylene polyoxypropylene ether, alkylphenol polyoxyethylene ether, rapid-infiltration agent T, oil acid polyethylene 400 ester and/or fatty alcohol polyethylene ether. ACTIVITY - Herbicide.