当前大多数果树和行间作物,都流行于比25—50年前的栽种密度要高得多的生产技术,高密栽植的亩产高,成本低。与机械化相适应的栽培技术也是可行的。以往,苹果园一般每英亩栽种30——50株,这是相当低的密度。但是改用矮砧就有利于高密栽植,因此,需要研究出每英亩栽种千株以上,並能机械化作业的栽培技术。美国曾提出和采用过宽行栽种矮砧和半矮砧苹果,但是出现了许多问题,如扎根少,易感病及抗 Currently, most fruit trees and interplanting crops are popular in production techniques that have a much higher planting density than 25-50 years ago. High-density planting yields high yields and low costs. Cultivation techniques compatible with mechanization are also feasible. In the past, apple orchards generally planted 30 - 50 strains per acre, which is quite low density. However, the switch to dwarf anvil is conducive to the planting of high density, therefore, the need to study cultivation of more than a thousand acres per acre, and mechanized farming techniques. The United States has proposed and adopted wide-width planting of dwarf ankles and half-dwarfing apples, but many problems have emerged such as less rooting, susceptibility to disease and resistance