【摘要】 海城市‘南果梨’栽培历史悠久，山地老梨园面积大，树体结果枝量减少，产量低，急需进行品种更新。作者采用“主枝侧位多芽腹接+小枝多芽劈接”的高接换头新技术，实现1年高接、2年恢复树冠、3年恢复产量。通过该技术的推广应用，使当地的老梨园效益大幅提升。更多还原

【Abstract】 The cultivation history of ’Nanguo Pear’ in Haicheng City is long,and the mountainous old pear orchards have a large area. The number of fruiting branches in the trees has decreased, and the yield is low. Therefore, there is an urgent need for variety renewal. The author adopts a new technology of high grafting and head replacement,which includes “lateral multi bud belly grafting on the main branch+multi bud splitting grafting on the small branches”, achieving 1-year high grafting,2-year crown restoration,and 3-year yield restoration. Through the promotion and application of this technology,the benefits of local old pear orchards have been greatly improved.更多还原