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甘薯拔苗或割苗栽培的产量比较ＭｅｌｖｉｎＲ．Ｈａｌｌ在美国，１级甘薯块根（直径１～９ｃｍ，长７．５～２３ｃｍ）的市价是最高的。提高１级薯块的产量能增加经济效益。田间甘薯种植数确定后，所用秧苗从苗床中拔或割，或者从已栽秧苗的藤蔓上割（Ｅｄｍｏｎｄ，１９...
Yield of sweet potato plucking or cutting seedling compared with MelvinR. Hall In the United States, the market price of sweet potato root tuber (diameter 1 ~ 9cm, length 7.5 ~ 23cm) is the highest. Increasing the output of a potato block can increase economic benefits. After the number of sweet potato plants in the field is determined, the seedlings used are cut or cut from the seedbed or cut from the vine that has been planted with seedlings (Edmond, 19 ...