在马铃薯栽培中种子的投入最昂贵。由于马铃薯是无性繁殖,为获得丰收需要投放大量的种薯(2.0～4.0吨/公顷)。尤其对大薯块品种情况就更严重。对这类品种可以采用种薯切块并保持单位面积种植密度比整薯高一些的方法来减少种薯的资金投入。 Shilma(1963)于秋季将种薯切块,并用0.2～0.3％的代森锰锌溶液处理几分钟后种植曾获得丰收。但他于1957～1960年间用旧品种试验表明整薯比切块的收成更好。只是对块茎 The most expensive seeds are used in potato cultivation. Due to the vegetative propagation of potatoes, a large amount of seed (2.0-4.0 t / ha) is required for harvest. In particular, the situation is more serious potato varieties. For these varieties can be used seed dicing and maintaining the unit area planting density higher than the whole potato method to reduce the seed capital investment. Shilma (1963) diced the seeds in the fall and harvested after a few minutes with a 0.2 to 0.3% mancozeb solution. However, his experiments with old varieties from 1957 to 1960 showed that whole potatoes harvested better than diced ones. Just on tubers