冀北地区大多是20世纪80年代栽植的老果树,这些果树急需更新。近年来,农民在老果园新栽植大量果树,但由于受果树再植病的影响,栽植后常常出现果树生长不良、效益不高的现象,这在一定程度上阻碍着老果园的更新改造。因此对果树再植病发病原因进行研究并提供解决对策,具有十分重 Most of the northern Hebei region was planted with old fruit trees in the 1980s, and the fruit trees were in urgent need of renewal. In recent years, farmers planted a large number of fruit trees in old orchards. However, due to the impact of replantation of fruit trees, poor growth and inefficiency of fruit trees often appear after planting, which hinders the renovation of old orchards to a certain extent. Therefore, the cause of replantation of fruit trees to study the cause and provide solutions to the problem, with very heavy