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我区引种茶树已有18年的历史,总面积达4万亩,但产量一直不高。到1983年,常规栽培法投产园平均亩产一直徘徊在50—75斤,最高亩产600斤(只1.1亩16年生丰产地块)。临沂地区处在北纬34°—38°之间,气候比较寒冷,1951—1984年间,短时间绝对最低温度曾达-25.6℃,茶树集中种植区最低温在-14℃～-16℃。在常规栽培条件下,茶树遇到-10℃～-15℃的低温持续7天以
Tea introduced in our district has 18 years of history, with a total area of 40,000 mu, but the yield has not been high. By 1983, the average yield per mu of the conventional cultivation method production park had been hovering at 50-75 kg and the maximum yield was 600 kg (only 1.1 mu of 16-year-old high yield plots). Linyi area is between latitude 34 ° -38 ° and the climate is colder. Between 1951 and 1984, the absolute minimum temperature in a short time reached -25.6 ° C. The lowest temperature in the concentrated tea plantation zone was -14 ° C to -16 ° C. Under conventional cultivation conditions, the tea tree encountered -10 ℃ ~ -15 ℃ low temperature for 7 days