选种：选择薯形整齐，薯皮细嫩光滑的块茎作种薯。
消毒：消毒的方法是用40‰的福尔马林1份兑水200份，喷洒薯堆或种薯5分钟，用薄膜覆盖闷蒸2小时，再摊成薄层，通风晾干。切刀也要消毒。
整薯栽种：选用健壮整薯栽种，有防病害感染，发挥顶端优势，保证苗全苗壮的良好效果。
切块催芽：为了节约用种和打破休眠期，切块有时也是势在必行。切块重量25克以上，带有1～2个芽眼，切后用草木灰拌种。催芽在室内进行，薯块铺放30厘米左右厚，上盖湿土，保温10℃～15℃，待芽长出为止（约0.5～1.0厘米），也可用0.5～1.0单位赤霉素处理5～10分钟后，适温催芽。
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