最近几年,在经济林的发展方面,继“苹果热”、“山楂热”之后,北方山区农民已经开始把目光转移到大扁杏(仁用杏的一种)的栽培上。如何培育出优良的大扁杏苗,使农民新建的大扁杏园早投产,并且达到高产、优质、高效之目的,根据近年来我院的大扁杏苗圃的实践,认为育苗的关键在于以下几点。 In recent years, following the “apple fever” and “hawthorn fever” in the development of economic forests, peasants in northern mountainous areas have begun to shift their eyes to cultivation of apricot (Apricot apricot). How to cultivate the good big flat apricot seedlings so that the farmers new big flat apricot garden put into production as soon as possible, and achieve the purpose of high yield, high quality and high efficiency, according to the practice of the apricot nursery in our hospital in recent years, that the key to nursery lies in the following What time?