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榆中县位于甘肃中部干旱地区,全县种植洋芋14万亩,占粮食面积的15%,占秋田面积的49%。但多年来,各方面原因造成病害多、产量低、质量差。从1978年开始,在省农科院植保所的帮助下,我县搞脱毒种薯的扩大繁殖,同时抓洋芋无病毒原种基地建设,仅四年时间,已建成一级和二级两个较完整的洋芋原种基地。1981年给全县提供脱毒种薯110万斤,同时还给省内外提供了部分脱毒种薯和无毒小苗。仅官滩沟一
Yuzhong County is located in the arid area of central Gansu Province. There are 140,000 mu of potato planted in the county, accounting for 15% of the total grain area and 49% of Akita area. However, over the years, many diseases have resulted from various causes, with low output and poor quality. Since 1978, with the help of the Plant Protection Office of the Provincial Academy of Agricultural Sciences, our county has expanded the breeding of virus-free seed tubers and at the same time has grasped the construction of potato-free seed bases. In the past four years, A more complete base of potato species. In 1981, the county provided 110,000 kg of virus-free seed tubers and provided some virus-free seedlings and virus-free seedlings to both the inside and outside of the province. Only official beach trench one