不同施钾水平与甜菜产质量关系的研究

Relationship between potassium level applied and sugarbeet yield and quality

在不同施钾水平下对甜菜块根产量、含糖率及产糖量进行了研究。其结果表明:随着施钾水平的提高,甜菜块根产量、含糖率及产糖量增加,并且均与施钾水平呈显著正相关。施钾水平在每公顷K2O150kg以上时,处理间块根产量差异不显著;施钾水平在每公顷K2O100kg以上时,处理间含糖率及产糖量差异不显著。在土壤含钾量较高的黑龙江省南部黑土地区,生产上钾肥用量宜控制在每公顷K2O100～150kg。

In this paper,sugarbeet root yield,sugar content and sugar yield were investigated under different level of potash applied,the results shown that sugarbeet root yield,sugar content,sugar yield were increased followed by potash level increasing and it has significant positive correlation with potash applied,no significant difference in the root yield when potash level at K 2 O150kg/ha,and no significant difference in sugar content and sugar yield with K 2 O100kg/ha.In black soil with high potash content of southern part of Heilongjiang Province,the optimum level of K 2 O at100～150kg /ha.