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禹县是发展核桃生产的一个新区。自1970年以来,全县已发展30亩以上的片林1.3万亩,加上零星植树共有62万余株,其中已有10万余株开始结果,还有相当一部分核桃树因栽植在土质瘠薄的山坡上,形成了“小老树”。我县过去发展核桃生产,由于不注重选用良种,而采用商品核桃种子育苗
Yu County is a new area for the development of walnut production. Since 1970, the county has developed more than 30 acres of film forest 13000 acres, with sporadic planting a total of more than 620,000 strains, of which more than 100,000 strains have begun to result, there is a considerable part of the walnut trees planted in soil infertility The hillside, forming a “small old tree.” My county in the past the development of walnut production, due to not pay attention to the selection of elite, but the use of walnut seed breeding