甜菜种球是由几个种子及其周围木质化的萼聚生在一起的聚合果,呈不规则的球块。一般衣业上所谓甜菜种包括单果和聚花果。甜菜种球的特征一是形状不规则,多棱角,散落性差,因此机械播种往往容易蓬住排种口,造成漏播或下种不均;另一个特征是种球多胚芽,一个种球可生出几个幼苗,苗根相互交错,间苗易伤幼根。这些都是实现机械化的障碍。 Beet bulbs are aggregated fruits that come together from several seeds and their surrounding lignified calyx, with irregular bulbs. The so-called beet species on the general clothing industry include single fruit and poly fruit. One of the characteristics of beet bulbs irregular shape, angular, scattered poor, so mechanical sowing is often easy to pound seed row mouth, resulting in leakage or under the uneven species; another feature is the bulbs germ, a bulbs can be Give birth to several seedlings, seedling root staggered, Jianmiao easy to hurt the root. These are barriers to mechanization.