土壤是茶园的立地之本,肥料是茶树的粮食,茶园土壤改良和施肥是低产茶园改造的重要技术环节,也是茶树树冠改造和换种改植,以及提高茶叶品质的基础。一、全园深翻、抽槽换土茶树系深根作物,正常生长的茶树根系可伸展到1～2米,因此,茶园土壤必须有深厚的土体结构,有效土层一般不得少于80厘米,茶树高幅度70厘米内的有效土层厚度成正比,高产茶园有 Soil is the site of the tea garden. Fertilizer is the food of the tea tree. Soil improvement and fertilization of the tea plantation are important technological links in the transformation of low-yielding tea gardens. They are also the basis for the transformation and replanting of tea tree canopies and the improvement of tea quality. First, the whole garden deep plowing, draining the soil tea tree deep root crops, the normal growth of the tea tree roots can be extended to 1 to 2 meters, so the tea garden soil must have a deep soil structure, effective soil generally not less than 80 Cm, the effective thickness of tea trees within 70 cm in height proportional to the proportion of high-yield tea garden