近年来，我乡推广应用嫁接技术在衰老茶园更新换种中取得新的突破。其主要技术措施是将原栽种的老茶树，如梅占、毛蟹等低档品种砍掉，嫁接铁观音等高档品种，成活率高达 95％以上， 2年即可封行复壮投产。比传统常规的改植换种更新，具有投资省、花工少、成效快、繁殖系数高的 In recent years, I promote the use of grafting technology in the old tea garden renewal for a new breakthrough. The main technical measure is to cut down the low-grade cultivars such as the old cultivated old tea trees, such as the plum and crabs, and graft the high-grade varieties such as Tieguanyin. The survival rate is as high as 95% or more. Compared with the traditional method of replanting, it has the advantages of less investment, less manual work, faster effect and higher multiplication coefficient