茶园土壤的肥瘠直接关系着土地生产力的高低。据青岛农业大学茶叶研究所对山东省茶园土壤测定结果,全省茶园土壤有机质含量水平仅在0.9%左右,有的仅在0.7%上下,比上世纪五十年代下降40%左右,比上世纪七十年代也有下降;许多地区的土壤速效氮、磷、钾等养分含量也有明显减少,土壤结构遭到破坏, Fertility of the tea garden soil directly related to the level of land productivity. According to the Qingdao Agricultural University Tea Research Institute of Shandong Province tea garden soil determination results, the province’s tea plantation soil organic matter content level of only about 0.9%, and some only at 0.7% up and down more than 40% reduction in the 1950s than in the last century Seventies also declined; in many areas of soil available nitrogen, phosphorus, potassium and other nutrients also significantly reduced the soil structure has been destroyed,