苹果树再植障碍试验马彦，魏学信，于良祖（甘肃省农科院榆中园艺场７３０１００）关于果树的再植问题，国内研究较少。近几年由于我国苹果发展迅猛，趋于矮化密植栽培，品种更换加快，老果园重复利用遇到的再植障碍越来越突出，研究其发生的原因对于果树持续稳定发展具有... Apple Tree Replantation Disorder Ma Yan, Wei Xuexin, Yu Liangzu (Gansu Academy of Agricultural Sciences Yuzhong Horticultural Field 730100) There are few researches on the replanting of fruit trees. In recent years due to the rapid development of apple in China, tends to dwarf dense planting cultivation, species change faster, the old orchard reuse encountered more and more obstacles to replantation, the study of the reasons for the sustained and stable development of fruit trees with ...