“葫芦”形土窖贮藏甘薯 ,投资少 ,耗能低 ,占地面积小 ,保鲜期长 ,在 7个月以上 ,好薯块率达95%以上 ,能显著提高经济效益 ,且简单易行。其方法如下。1　“葫芦”形土窖的挖建在地势高燥、土质坚硬、向阳处挖窖 ,口径 70～ 80ｃｍ ,从距窖口 40～ 50ｃｍ处 ,以 40°～ 45°斜 “Calabash” shaped silo storage sweet potato, less investment, low energy consumption, small footprint, long shelf life, in more than 7 months, good potato block rate of 95% or more, can significantly improve economic efficiency, and simple . The method is as follows. 1 “gourd” -shaped earth cellar digging built in high terrain, soil hard, sunny office digging cellar, caliber 70 ~ 80cm, from the mouth of the mouth 40 ~ 50cm to 40 ° ~ 45 ° inclined