当前农作物和果树栽培的总趋势是一致的,即都是由高杆乔化稀植逐渐转向矮化密植,小麦和水稻由于利用矮杆品种密植,已经使生产水平开始跨入一个新的阶段,果树正在研究和利用这个经验。果树矮化途径有四条:选用矮化品种;利用矮化砧木;使用生长抑制剂和通过栽培促使矮化。其中选用 The current trend of crops and fruit trees cultivation is the same, that is, all from high-sparrow planting gradually turned to the dwarf and close planting, wheat and paddy due to the use of short-stem varieties close planting, production levels have begun to enter a new phase, Fruit trees are studying and using this experience. There are four ways to dwarf the fruit trees: selecting dwarf varieties; using dwarfing rootstocks; using growth inhibitors and promoting dwarfing through cultivation. Which use