当前苹果栽培的趋势是矮化密植。主要有4条技术途径,即选用矮化品种、利用矮化钻木、使用生长抑制剂和矮化栽培技术等。自1956年美国斯达克种苗公司发表新红星以来,短枝型苹果引起了果树工作者的重视,栽培面积发展很快。如美国的北卡罗里纳州和俄亥俄州,近年来新栽植的苹果幼树中,90%以上是短枝型品 The current trend of apple cultivation is dwarf and close planting. There are four main technical ways, namely the selection of dwarf varieties, the use of dwarf drill, the use of growth inhibitors and dwarfing cultivation techniques. Since the United States Starck Seed Company issued a new red star in 1956, spur-apple has drawn the attention of fruit tree workers and cultivated area has developed rapidly. For example, in North Carolina and Ohio of the United States, more than 90% of newly planted apple saplings in recent years are short shoots