一、前言苹果梨是我国优良梨树品种之一,目前全区苹果梨栽植面积约1.2万亩左右,但在生产上一直沿用旧式大冠稀植,致使结果晚,单位面积产量低,管理不便,严重地影响了苹果梨生产的进一步发展和经营者的经济收入。因此,采用合理的栽植密度和方式,是生产上的一大课题。为此,我们于1981～1988年进行了苹果梨幼树密植早期丰产技术研究,其目的是探讨早期丰产潜力和途径,以及丰产的有关参数,为大面积生产提供科学依据。 I. Introduction Apple pear is one of the fine pear varieties in China. At present, the planting area of ​​apple pear in the whole region is about 12,000 mu. However, the old crown has been sparsely planted in production, resulting in a late result and low yield per unit area, with inconvenient management , Has seriously affected the further development of apple pear production and the operator’s economic income. Therefore, the use of a reasonable planting density and mode of production is a major issue. Therefore, in 1981 ~ 1988, we carried out the research on the early seedling technology of apple pear sprouts close planting and its purpose is to explore the potential and ways of early yield, as well as the relevant parameters of high yield, to provide a scientific basis for large-scale production.