自然发生的气生块茎植株地上下块茎虽多,但形小,产量低。秋播气生块茎生长不良,春播较好。5月将马铃薯植株地下根部切去1/2,地上部腋芽可形成气生块茎,但全株块茎数多形小,产量不高,如加强管理,增施肥料,可使块茎增大,产量提高。 Naturally occurring aerial tubers plant tubers, although many, but the shape of small, low yield. Autumn sowing poor growth of tubers, spring sowing better. In May, the underground roots of potato plants were cut into 1/2, and shoots were formed in axillary buds of shoots. However, the number of whole plant tubers was small and plentiful, yield was not high. Such as strengthening management and increasing fertilizers, the tubers could be enlarged and the yield improve.