山杏主要分布在我国“三北”地区,每年普遍存在着不同程度的冻花、冻果现象,是造成杏仁减产的主要原因。因此,有效地预防山杏花期、幼果期冻害,是目前山杏生产的主要问题。1　加强栽培管理　1)夏、秋季深翻改土、压肥,晚秋或初冬灌封冻水,早春灌花前水,提高树体的营养水平和水 Armeniacae are mainly distributed in the “Three Norths” regions of our country. There are ubiquitous phenomena of frozen flowers and frozen fruits at different levels each year, which is the main reason for the decrease of almonds. Therefore, the effective prevention of apricot bloom, young fruit frost damage, is the main problem of apricot production. 1 to strengthen the cultivation and management 1) deep summer, autumn deep change soil, fertilizer, late autumn or early winter irrigation frozen water, early spring irrigation before the water to improve the nutritional level of the tree and water