一、栽培技术的新发展本世纪中期以来,世界的果树生产技术发生着一个重大的变革,就是矮化密植的集约化栽培逐渐取代旧式的乔化稀植方法,产生了一套新的栽培技术,形成了栽培学的许多新颖的概念。目前,在这方面表现最突出的是苹果栽培。自从本世纪初,发现茂林系(M1—9)和 First, the new development of cultivation technology Since the middle of this century, the world’s fruit production technology has undergone a major change is the intensive planting of dwarf and dense planting gradually replaced the old Qiaohua sparse planting method, resulting in a new set of cultivation techniques , Formed many novel concepts of cultivation. At present, the most outstanding performance in this area is apple cultivation. Since the beginning of this century, the discovery of Maolin (M1-9) and