我县深山区有野生山楸树约80多万株,分布在9个公社103个大队。从1967年开始利用山楸嫁接核桃约30多万株,其中成活20多万株,成活率一般达70%左右。1978年产核桃1.5万斤,1979年产2.85万斤。有力的促进了核桃生产的发展。一、山楸嫁接核桃的优点1.充分利用野生资源,扩大核桃种植范围。山楸多分布在深山区的阴坡、半阴坡 My mountainous area has more than 800,000 wild catharanthes trees, distributed in 9 communes 103 brigade. From 1967 onwards, the use of Sorghum grafted about 30 million walnuts, of which more than 20 million survived, the survival rate is generally up to 70%. 1978 annual output of 15,000 kg of walnuts, 1979 produce 28,500 kg. Effectively promoted the development of walnut production. First, Sorghum advantages of grafting walnut 1. Make full use of wild resources, expand the scope of walnut cultivation. Arborvitae more distributed in the shady mountains in the shady, semi-shady