在毛主席革命路线指引下,在批林批孔运动的推动下,东张公社五·七茶场为促进茶叶生产的发展,成立了领导、老农、知青三结合的茶叶科学实验小组,开展了群众性科学实验活动,认真贯彻落实“八字宪法”,对6.5亩旧茶园进行改造。于一九七四年秋茶结束后,全面清理茶园,开挖四周排水沟,进行茶园土壤深翻,增施有机肥料(共施花生饼1300斤,花生藤20担,稻草30担), Under the guidance of Chairman Mao’s revolutionary line and under the motto of “Bringing Lin and Boring Kong”, the East Zhang Commune’s 57 Tea Plantation set up a tea science experiment group combining leadership, farmer and educated youth in order to promote the development of tea production. Science experiment activities, conscientiously implement the “Character Constitution”, the transformation of 6.5 acres of old tea plantation. After the autumn tea was finished in 1974, the tea plantation was completely cleaned up. Drainage ditches were excavated for deep soil dipping in the tea plantation. Organic fertilizer (1,300 kg peanut cake, 20 peanut rattan, and 30 straw) was added.