杏在我市大部零星种植于青石山坡瘠地或梯田堰边上,由于管理粗放,病虫滋生,水土流失严重,致使树势弱,产量低而不稳,经济效益不高。为改变这种状况,我们于1987～1990年承担了潍坊市科委下达的以成龄杏树开发为重点的“杂果大面积优质丰产栽培技术试 Apricot in our city mostly sporadically planted in the bluestone hillside barren or terraced weir edge, due to extensive management, pests and diseases, soil erosion, resulting in weak trees, low yield and instability, economic efficiency is not high. In order to change this kind of situation, we undertook from 1987 to 1990 the trial of large-scale, high-yield and high-yield cultivation of fruit trees