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洋芋是一种高产作物,但是,在当前生产上普遍存在品种退化严重,病害重,薯块小,产量不高的问题。有的年年花大量的人力物力到外地换种。为了解决这个问题,各地贫下中农和科技人员在实践中摸索出各种克服薯块退化的经验。如改变栽培条件,用秋洋芋做种,收到良好效果,现正大力推广。丽江地区农科所和丽江县大研公社科技站,采用籽种繁殖育苗移栽的办法,也收到显著增产效果。一九七五年引进“克疫”品
Potato is a high-yielding crop, however, there is a widespread problem in the current production that the varieties degenerate seriously, the diseases are heavy, the potato pieces are small and the yield is not high. Some annual spend a lot of manpower and resources to the field for another. In order to solve this problem, the poor and middle peasants and scientific and technological personnel in various places have worked out various experiences in overcoming the degradation of potato pellets in practice. Such as changing the cultivation conditions, with autumn potato as seed, received good results, is vigorously promoted. Lijiang Agricultural Science Institute and Lijiang County Institute of Science and Technology Station, the use of seed breeding seedlings transplanting approach, also received a significant increase in yield. In 1975 the introduction of “grams of” products