在七十年代中后期,世界上已有五十多个国家生产茶叶,投产茶园面积约有2318万亩,年总产条叶3256万斤,平均单产104斤。但各产茶国之间茶叶年总产及其单产水平差距很大,印度年总产为1029万担,单产186.8斤;斯里兰卡年总产393万担,单产120斤;日本年总产210万担,单产267斤;苏联年总产187 In the mid-to-late 1970s, more than 50 countries in the world have been producing tea. The tea plantation has an area of ​​about 23.18 million mu, with 32.56 million jins of annual total yield of leaves and an average yield of 104 jin. However, there is a wide gap between the annual output of tea in each producing country and the level of its yield. In India, the total output was 10.29 million daltons and the yield was 186.8 kg. Sri Lankan’s total output was 3.93 million daltons, yielding 120 pounds. Japan’s total annual output was 2.1 million. , Yield 267 pounds; the total output of the Soviet Union 187