山东莱区是我国茶树经济栽培的北限，其生产茶园多为70年代“南茶北引”时种植，多数产量低，质量差，急需改造。经实践，以下改造低产老茶园的技术措施有增产提质的效果。1．归井补缺或加行密相归并补缺，就是利用老茶树进行补缺，并小块为大块，并零星为成片。具体做法是：将 Shandong Laizhou is the northern limit of the economic cultivation of tea in China. Most of the tea farms in its production are planted in the south of the north of the country in the 1970s. Most of the lakes are planted with low yield and poor quality and are in urgent need of transformation. After practice, the following transformation of low-yielding old tea plantation measures have the effect of increasing yield and quality. 1. Complementarity or increase possession of secret phase and fill vacancies, is the use of old tea trees make up for vacancies and small pieces for the bulk, and sporadic into films. The specific approach is: will