柴达木地区胡萝卜不同种植密度效果分析

在青海柴达木地区,用维他那3号胡萝卜为试验材料进行了5水平单因素密度试验。结果表明:不同密度下的胡萝卜叶片数变化不大,叶片长度、肉质根长、肉质根周径、单株根重随着密度的减小而增大,商品率在株距10～15 cm时最高,株距小于10 cm时,小块根比例高,株距大于15 cm时,空心比例高。维他那3号胡萝卜在株距10～15 cm时胡萝卜根总产量最高,高于或低于这个密度范围,胡萝卜根总产量均会降低;在株距15 cm时胡萝卜商品根产量最高。

Effect Research of Different Densities on Carrot Cultivation in Chaidamu Region

In Chaidamu region of Qinghai,Wei Ta Na No.3 was used as the experiment material to do 5 levels of single-factor density test.The results showed that carrot leaves changed little with different densities.Leaf length,fleshy root length,perimeter fleshy root and root weight per plant decreased as the density increased.Commodity rate was highest when plant spacing was 10~15 cm;less than 10 cm,small roots had a high proportion;above 15 cm,carrot had a high proportion of hollow.When plant spacing was in the rang...