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土豆实生苗具有抗退化和分离复杂的特点,培育好实生苗可为大田生产提供种薯,为选育新品种提供试材。土豆种子很小(一万粒才一钱重)拱土力较弱,必须精细播种,才能保证全苗。因此,需注意以下几个环节: 做床:在播种前(为了早育苗可以在头年上冻前把床子挖好)选择向阳,背风,干燥,接近水源和土质好的场所挖苗床。床的大小以便于作业为原则,一般30～60平方尺,(长10～15尺,宽3～4尺)为宜。作法:按定好的长宽尺寸挖成床子,先将表土挖
Potato seedlings have the characteristics of anti-degeneration and separation complex. Nurturing good seedlings can provide seeds for field production and provide test materials for breeding new varieties. Potato seeds are small (ten thousand only a heavy) Arch soil strength is weak, we must fine sow, in order to ensure the whole seedlings. Therefore, we should pay attention to the following aspects: Make bed: before sowing (in order to early nursery in the first year before the freeze on the bed dug) choose sunny, leeward, dry, close to the water and soil good place to dig seedbed. The size of the bed to facilitate the operation for the principle, generally 30 to 60 square feet, (length 10 ~ 15 feet, width 3 ~ 4 feet) is appropriate. Practices: according to a good length and breadth dimensions dug into bed, first topsoil digging