一、查漏补缺多年的放任管理,导致单位面积保存株数越来越少,缺株断行情成为普遍现象,即使保存的株体因病虫危害,尤其是蛀干害虫使整个株体失去经济栽培价值。因此最经济、方便的办法就是利用山楂的根蘖进 First, the lack of inspection leak years of laissez-faire management, resulting in fewer and fewer units to save the number of strains, lack of stock market has become a common phenomenon, even if the strain of pests and diseases of the preservation of the plant, especially the borer pests make the entire strain lose economic cultivation value. Therefore, the most economical and convenient way is to use the root tillering of hawthorn