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栗树适应性强,是经济价值很高的木本粮食树种,在国内外市场上久负盛名,出口创汇率很高。辽宁东部山区是我省丹东栗的重点产区,其资源丰富。但长期以来一直处于管理粗放、品种混杂、良莠不齐、单株和单位面积产量低、病虫危害严重等不良状态。丹东地区现有板栗结果树20万亩,1981年产量为4205t,平均亩产仅为21.25kg,与小面积亩产120kg丰产园相比,其经济优势还远远没有被挖掘出来。为了改变丹东栗生产的落后现状,挖掘现
Chestnut adaptable, is a woody food tree species with high economic value, enjoys a good reputation both at home and abroad, and has high foreign exchange rate of export. The eastern mountainous area of Liaoning is the key producing area of Dandongli in our province, with rich resources. But for a long time it has been in extensive management, mixed species, good and bad, low yield per plant and unit area, pests and diseases and other serious harm. In Dandong, the existing chestnut fruit tree is 20 million mu, and the output in 1981 is 4205 tons. The average mu yield is only 21.25 kg. Compared with the small-yield 120 kg high-yield farm, its economic advantages are far from being excavated. In order to change the backward status of Dandong production, tap the present