在最近3—4年内,克里木和北高加索的草原和山麓地区,大多数杏树没有结果,使得杏树的新栽植急剧减少.但是杏子的这些有价值的特性,如抗旱性、对土壤条件要求不高、果实比较早熟、高度生食和加工的品质不允许放弃这种有价值的果树作物而迫使在苏联南部地带条件下寻找提高它的生产率的方法. In the last 3-4 years, the majority of almond trees in the grasslands and foothills of the Crimean and North Caucasus have been unproductive, leading to a sharp decline in new planting of apricot trees. However, these valuable properties of apricots, such as drought resistance, The less demanding conditions, the more precocious fruit, the high levels of raw food and processing precluded the abandonment of such valuable fruit trees and forced the search for ways to increase their productivity in the southern Soviet Union.