论文部分内容阅读
在田间条件下进行了钾、硼及其相互关系对油菜籽产量、油菜植株中钾、硼、钙、镁吸收量及含量影响的研究。结果表明:在缺硼和高硼条件下,施钾对产量无显著影响。中量钾能促进油菜植株对硼的吸收,而高量钾则抑制油菜植株对硼的吸收。施硼会降低油菜植株中K/B比率,增加叶片中Mg的浓度,而对叶片中Ca的浓度无明显影响;施钾会增加油菜植株K/B比率,降低叶片中Ca、Mg浓度,反映出钾镁之间存在明显的拮抗作用。在本试验条件下,油菜植株中适宜的K/B比率为1000左右。
The effects of potassium and boron on their rapeseed yield and their absorption, contents and contents of potassium, boron, calcium and magnesium in rapeseed were studied under field conditions. The results showed that under the conditions of boron deficiency and high boron, potassium application had no significant effect on the yield. The medium potassium promoted the absorption of boron in rape plants, while the high potassium inhibited the absorption of boron in rape plants. Application of boron reduced the K / B ratio in rapeseed plants and increased the concentration of Mg in leaves, but had no significant effect on the concentration of Ca in leaves. Potassium application increased the K / B ratio of rapeseed plants and decreased the concentration of Ca and Mg in leaves, There is a clear antagonism between potassium and magnesium. Under the experimental conditions, the suitable K / B ratio in rapeseed plants is about 1000.