论文部分内容阅读
山楂树性泼健,幼树结果早,经济寿命长,既喜阳光,也比较耐荫,抗寒,抗风,耐瘠,耐涝,对土壤条件要求不严.山楂在华北各省和东北地区北纬44°以南,以及云贵高原都有种植,在石灰岩山区或土层较深厚、疏松的沙质壤土上种植的山楂,生长发育和结果更佳。但山楂不太抗旱,有些品种在幼果期,还容易罹受烈日高温条件下的灼伤,使冠顶和树冠南、西部位的果实发生日烧病,在建园之前,必须重视园地选择。
Hawthorn splashing, sapling early results, long economic life, both hi sunshine, more shade, cold, wind, barren, waterlogging, lax requirements of the soil conditions. Hawthorn provinces in North China and Northeast China Growing south 44 ° north latitude and the Yunnan-Guizhou Plateau, hawthorn grown on limestone mountainous areas or in deeper, looser sandy loam has better growth and results. However, hawthorn is not too drought-resistant, and some varieties are susceptible to burns under hot sun and hot conditions during the young fruit stage. Burning diseases occur on the crown and crown of fruits in the south and west of the crown.