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增效乙－阿混剂是我院研制开发的玉米田新型除草剂。该药剂由阿特拉津及乙草胺、二，四滴－丁酯等除草剂和助剂按科学比例混合而成。该混剂于1993－1996年在吉林省东丰、永吉、辉南、梅河、通化、柳河、集安等市县和辽宁省清源、抚顺、西丰、新滨等市县共55个点大面积试验示范，结果表明增效乙－阿混剂施用量为4．5－5．0kg／hm2，对玉米田阔叶杂草和禾本科杂草的防效稳定在92％以上。施药期为播种后至出苗前和玉米3－5叶期，对水进行土壤封闭处理和茎叶处理，对玉米生长发育及翌年种大豆均无影响。增效乙－阿5kg／hm2处理，比吉林、宣化产的乙－阿同剂量处理降低成本11．375元／hm2，比人工除草增产2101kg／hm2，累计增产玉米1．0925亿公斤（2101kg×52000hm2），玉米按0．74元／kg计算，累计增加经济效益可达8084．5万元，社会效益更可观。
Synergistic B - A mixture is our hospital developed a new cornfield herbicides. The agent is composed of atrazine and acetochlor, two or four drops of butyl ester and other herbicides and auxiliaries are mixed according to scientific proportions. The mixture was used in cities and counties of Jilin Province including Dongfeng, Yongji, Huinan, Meihe, Tonghua, Liuhe, Ji’an and Qingyuan, Fushun, Xifeng and Xinbin of Liaoning Province from 1993 to 1996 Large-scale pilot demonstration, the results show that the application of B-A mixture of 4.5-5.0kg / hm2, cornfield broad-leaved weeds and grass weeds control more than 92% stability. The application period is from sowing to pre-emergence and 3-5-leaf stage of corn, and soil sealing treatment and stem-leaf treatment on water have no effect on the growth and development of maize and the following year’s soybean. Compared with Jilin and Xuanhua, the same dose of B-A treatment reduced the cost by 11.375 yuan / hm2, 2101 kg / hm2 more than artificial weeding, and the cumulative increase of corn was 1.0925 billion kg (2101 kg × 52000hm2), corn calculated by 0.74 yuan / kg, the cumulative increase of economic benefits up to 80,845,000 yuan, more substantial social benefits.