“九二○”对多种作物都有一定的应用效果,近年来在农业生产上已广为使用。在伟大的无产阶级文化大革命中,茶区广大贫下中农、国营茶场和生产建设兵团的广大革命职工,以及各科研、学校等单位的科技人员,遵照伟大领袖毛主席“一切经过试验”的伟大教导,狠 The “920” has certain application effects on various crops and has been widely used in agricultural production in recent years. In the great Great Proletarian Cultural Revolution, the vast revolutionary masses of the poor and middle peasants in the tea-field, the state-owned tea plantation and the Corps of Production and Construction, as well as the scientific and technical personnel of various scientific research institutes and schools, followed the great teachings of the great leader Chairman Mao’s “all tested” ,ruthless