昌黎县微生物农药厂全体职工,以毛主席光辉哲学思想为武器,狠批刘少奇一类骗子反革命修正主义路线的实质,破除迷信,解放思想,大搞科学实验,在五四○六液体培养配方糖氮比上应用了“优选法”,有力的促进了生产发展。通过试验证明:“优选法”方法简便,容易普及,见效快是加强企业管理,提高 Changli County microbial pesticide plant all employees, with Chairman Mao glorious philosophical thought as a weapon, and vigorously criticized Liu Shaoqi liar counterrevolutionary revisionist line of essence, get rid of superstition, emancipate the mind, make scientific experiments, in May Fourth liquid formula sugar Nitrogen ratio applied the “preferred method”, effectively promoted the development of production. The experiment proves that the method of “preferred method” is simple, easy to popularize and effective is to strengthen enterprise management and improve