桃园迹地上不宜栽植杏树我们于１９９０年栽植杏树１．２ｈｍ￣２，其中有０．３ｈｍ￣２是老龄桃园更新，伐掉桃树后栽植杏树，主栽品种为麦黄杏。定植后发现，虽然生产条件基本一致，但定植在桃园迹地上的杏树（重茬）与新植地杏树（不重茬）的生长结果表现明显不同。１... Apricot trees should not be planted on Taoyuan sites We planted apricot trees at 1.2hm ~ 2 in 1990, of which 0.3hm ~ 2 is an aging Taoyuan renewal planted with apricot trees after cutting off the peach trees. The cultivated variety is wheat apricot. After planting, it was found that although the production conditions were basically the same, the growth performance of apricot (re-cropped) and apricot (newly planted) apricot planted on the trail of Taoyuan obviously differed significantly. 1 ...