嘉峪关市戈壁滩上的酒钢果园,虽作了改良土壤、连年深施有机肥的努力,但苹果树每年生长量仍较小,树冠趋向自然矮化,幼树结果早,到盛果期又较早出现大小年。对此,作了克服的试验研究。一九七二年,选择树体基本一致,十四年生的典型国光苹果大年树和小年树各十株,分 Jiayuguan City, the Gobi desert winery orchard, although made to improve the soil, successive years of organic fertilizer efforts, but the annual growth of apple trees is still small, the tree tends to dwarf natural dwarf tree early results to the fruitful period Early appearance of the year. In this regard, made to overcome the experimental study. In 1972, the choice of trees is basically the same, fourteen-year-old typical Chinese apple trees and small tree ten each, points