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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (33): 160-165.doi: 10.11924/j.issn.1000-6850.casb15040218

所属专题： 园艺

• 农学 农业基础科学 • 上一篇    下一篇

过量铜对甜菜营养吸收影响研究简报

张福顺,刘乃新,吴玉梅   

  1. 黑龙江大学农作物研究院/中国农业科学院甜菜研究所,黑龙江大学农作物研究院/中国农业科学院甜菜研究所,黑龙江大学农作物研究院/中国农业科学院甜菜研究所
  • 收稿日期:2015-04-30 修回日期:2015-10-17 接受日期:2015-07-23 出版日期:2015-11-26 发布日期:2015-11-26
  • 通讯作者: 吴玉梅
  • 基金资助:
    国家农产品质量安全风险评估专项经费(GJFP2015011)；国家甜菜现代农业产业技术体系“品质与质量检测”(CARS210305)。

Effect of Excessive Cu on the Nutrients Absorption of Sugar Beet

  • Received:2015-04-30 Revised:2015-10-17 Accepted:2015-07-23 Online:2015-11-26 Published:2015-11-26

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摘要： 初步明确甜菜中铜的吸收特点、耐受性以及过量铜对甜菜的危害，为合理利用铜素肥料奠定基础，为研究甜菜重金属危害提供资料。以铜处理浓度：Cu2+ 0.31、5.0、50.0、100.0 μmol/L 的营养液为基质，培养甜菜幼苗，研究过量铜对甜菜影响。结果表明：（1）幼苗颜色随着Cu2+浓度的增加，逐渐由绿变黄，根、叶鲜重逐渐变小。（2）微量元素：根中铜、锌、锰、铁、硼、钼含量增加，锰先下降，后略增加。叶中铜、硼、钼含量增加，锌、锰先增加后下降，铁变化不明显。（3）大量元素：根中氮、磷、钙、镁增加，钾先增加后下降。叶中全氮、磷、钾、钙、镁呈增加趋势。氮元素在根叶中含量差异不明显，其它元素含量叶大于根。

关键词: 地表温度, 地表温度, 预报模型, 误差

Abstract: In order to lay the foundation of the rational utilization of Cu fertilizer and offer data for the study of heavy metal harm on sugar beet (Beta vulgaris L.), Cu absorption characteristics, tolerance and the harm of excessive Cu were studied. The sugar beet was treated with nutrient solution of 0.31, 5.0, 50.0 and 100.0 μmol/L Cu2 in hydroponic culture and the effect of excessive Cu was studied. The results showed that: (1) the seedling color turned from green to yellow and the fresh weight of root and leaf became smaller with the increase of Cu2 ; (2) with the increase of Cu2 , the content of Cu, Zn, Fe, B and Mo in root increased, but Mn dropped and then increased lightly, the content of Cu, B, Mo in leaves increased, Zn and Mn increased first and then dropped, Fe had no significant variation; (3) with the increase of Cu2 , the content of N, P, Ca and Mg increased, K first increased and then dropped. The content of total N, P, K, Ca and Mg in leaves showed an increase trend. The content of N in root and leaf had no significant difference, but the content of other elements in leaf was higher than that in root.