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本文研究了铜对紫云英生长发育的影响效应.结果表明:低量的铜对紫云英生长发育有促进作用,高量的铜则有抑制作用.用5 mg/L 的铜液处理紫云英种子,对萌发无明显影响,却抑制芽的仲长和根的生长。在盆栽试验中,当土壤投加铜量为60 mgCu/kg 土时,紫云英减产10%以上.紫云英吸收的铜大部分积累在根部,各器官铜含量分布为根≥叶>茎>籽。
The effects of copper on the growth and development of Astragalus sinicus were studied in this paper.The results showed that low levels of copper promoted the growth of Astragalus sinicus and inhibited the high levels of copper.The purple Yunying seeds, no significant effect on germination, but inhibit the bud length and root growth. In the pot experiment, Astragalus sinicus yield was reduced by more than 10% when the soil was dosed with 60 mg Cu / kg of copper, most of the copper absorbed by Astragalus accumulated in roots, and the distribution of copper content in different organs was root ≥ leaf> stem > Seeds.