当前,我省苹果生产的发展速度很快。问题是栽后管理粗放,甚至栽而不管。一个重要原因是:由于利用山丁子砧木栽培乔化苹果,植株高大,栽后多年不结果,八年,甚至十年以后才能收益,到十五年左右才能进入盛果期。因此培育幼树时间长,投资年限多,投资量大。而利用矮化砧木发展矮化苹果是解决这个问题的有效途径。矮化砧木,又为中间砧,是在苹果根系(山丁子等)与接穗之间再嫁接一段砧木。根据我省各地的栽培试验和在生产上少量应用的结果说明,利用了这段中间砧木可促使果树早结果,早丰产。据调查,栽后三年开始结果,六年亩产达千斤以上。这时利用山丁子作砧木的乔化苹果还没有开始结果,当九年生的矮化苹果亩产达三千斤以上时,而乔化苹果刚刚开始结果。这就大大缩短幼树培育时间,减少投资年限,投资少,收益快。 At present, the development of apple production in our province is fast. The problem is extensive management after planting, or even planted regardless. An important reason is that because of the use of Dingcun rootstocks to grow Qiaohua apples, the plants are tall, they fail to bear fruit for many years after planting, and eight or even ten years later can yield benefits. Only fifteen years or so can they reach the full fruit period. Therefore, cultivating saplings for a long time, investment and more, a large amount of investment. The use of dwarfing rootstock to develop dwarf apple is an effective way to solve this problem. Dwarfing rootstocks, but also for the middle of the anvil, is in the apple root (Hill Dingzi, etc.) and scion grafting a section of rootstock. According to the cultivation test around the province and the results of the application of a small amount of production shows that the use of this intermediate rootstock can promote fruit early results, early high yield. According to the survey, the result of planting three years after planting, six acres of mu produce more than six. At this point the use of small plants as the rootstock Joe apple has not yet begun the results, when the nine-year-old dwarf apple mu yield of more than three thousand pounds, while Joe Apple just started the result. This will greatly shorten the sapling cultivation time, reduce investment life, less investment, quick returns.