专用肥与种植密度对甜菜的影响

Effects of Special Fertilizer Amount and Planting Density on Yield and Quality on Sugarbeet

2013年在通辽地区,以600kg/hm2(A1)、750kg/hm2(A2)、900kg/hm2(A3)专用肥用量;以6.0万株/hm2(B1)、7.5万株/hm2(B2)、9.0万株/hm2(B3)、10.5万株/hm2(B4)种植密度对甜菜品种KWS7156产质量的影响进行试验。结果表明:不同专用肥用量与种植密度互作条件下,A3B1处理株高、绿叶数、根粗、根长、根冠比达到最高值,其它测定项目的最高值分别是:块根鲜重A2B1处理、叶鲜重A3B1处理、产量A3B3处理、含糖率A1B3和A2B3处理并列、产糖量A3B3处理。主成分分析综合排序结果,以A2B2处理效果最佳,A3B3处理、A2B3处理分别排在第二、三位,A1B4处理排名最后。

The experiment for special fertilizer-amount and planting^density interaction on root yield and quality of sugarbeet KWS7156 was conducted, three special fertilizer treatments： 600 kg/ha （A1）, 750 kg/ha （A2）, 900 kg/ha （A3）; four planting density treatments： 60000 plants/ha （B1）, 75000 plants/ha （B2）, 90000 plants/ha （B3）, 105000 plants/ha （B4）. The results showed that plant height, green leaves, root diameter, root length and root shoot ratio reached their highest values in A3B1 treatment. The root fresh weight reached the maximum in A2B1 treatment and leaves fresh weight reached the highest values in A3B1 treatment. The sugar content was up to the maximum in A2B3 and A1B3 treatments. The root yield and sugar yield reached the maximum in A3B3 treatment. The result of principal components analysis indicated that A2B2 was the best treatment, A3B3 and A2B3 was respectively second and third, and A1B4 was the last one.