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核桃以往一般多采用实生繁殖,但生产实践证明:利用嫁接繁殖可以提前结果、提早得到收益,井可以保持品种的优良特性。但是核桃嫁接的技术较严,掌握不好往往成活率低。1963年我们总结了昌平地区老农嫁接的经验。1964年在昌平上庄公社蹲点和老农一起嫁接,并在北京市农林局瑞王坟苗圃进行嫁接试验,成活率分别达54.6%和77.3%。1965年在总结老农经验的基础上,在北京市八达岭林场搞样板田,进行规模较大的核桃嫁接工作。虽然天气特别干旱,总的
In the past, walnuts generally used real-life reproduction, but the practice proved that the use of grafting can advance the results of grafting, get benefits earlier, and can maintain the good characteristics of varieties. However, the technology of walnut grafted more stringent, poor grasp often low survival rate. In 1963 we summarized the experience of grafting of old farmers in Changping area. In 1964, Changping Shanghuang commune was grafted together with peasants and grafted in Ruiwangfen nursery of Beijing Municipal Bureau of Agriculture and Forestry. The survival rates were 54.6% and 77.3% respectively. On the basis of summing up the experience of veterans in 1965, he engaged in sample field in Badaling Forest Farm in Beijing to conduct the grafting of large-scale walnut. Although the weather is particularly arid, total