摘要
就不同的施钾水平对油菜吸收钙、镁的影响进行了研究。结果表明,油菜中K与Ca、Mg之间存在明显的拮抗作用。Ca、Mg吸收量占Ca、Mg、K吸收总量的比例随着钾肥用量的增加而明显下降。随着钾肥用量的增加,油菜植株地上部的Ca、Mg浓度呈下降趋势,其根部Ca、Mg浓度保持恒定。
The influence of different levels of potassium fertilization on cole′s Ca and Mg absorption was studied in this paper.The results were shown as follows:potassium had an obvious antagonistic action for Ca and Mg absorption in cole plants.The ratio between Ca,Mg absorption amount and the total potassium,Ca,Mg absorption amount decreased with the increase of potassium′s dosage.When the dosage of potassium increased,the concentration of Ca and Mg in cole plants showed the decreasing trend in cole plant′s culm,but remained unchanged in root.
出处
《安徽农业大学学报》
CAS
CSCD
北大核心
2003年第3期276-279,共4页
Journal of Anhui Agricultural University
基金
湖北省科技厅科学基金项目(2001A03006)资助。
关键词
油菜
施钾水平
钙镁
拮抗
cole
level of potassium fertilization
Ca
Mg
antagonistic action
