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首页> 外文期刊>Revista rvore >Influência de doses crescentes de chumbo sobre o teor e o conteúdo de nutrientes e Pb em mudas de ipê-roxo (Tabebuia impetiginosa (Mart.) Standl.)
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Influência de doses crescentes de chumbo sobre o teor e o conteúdo de nutrientes e Pb em mudas de ipê-roxo (Tabebuia impetiginosa (Mart.) Standl.)

机译：增加铅剂量对IPêmo紫色幼苗营养素和Pb含量和含量的影响（Tabebuia Impetiginosa（Mart.）itstl。）

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摘要

The effect of lead application on nutrient and Pb content and accumulation in ipê-roxo (Tabebuia impetiginosa (Mart.) Standl.) seedlings was studied in an experiment conducted under greenhouse conditions at the Soil Science Department of the Federal University of Lavras. The seedlings were cultivated in Clark nutrient solution and submitted to increasing Pb levels: 0, 48, 96, 192 and 288 mmol/l. The experiment was arranged in a randomized block design and after 60 days of exposure to the heavy metals, evaluations of macro and micronutrient and lead content and accumulation in the root, stem and leaf dry matter were made. The results showed that lead application increased P content and practically did not affect S, Ca and Mg contents. Cu, Fe and Mn contents, in general, presented a reduction; Zn content was not affected while macro and micronutrient accumulation was reduced. Lead content and accumulation in the root, stem and leaf dry matter increased with the doses applied.
机译：铅应用于营养素和Pb含量及含量在Ipê-roxo（Tabebuia Impetiginosa（Mart.）itstl中的积累的影响幼苗以克拉克营养溶液培养，并提交至增加Pb水平：0,48,96,192和288mmol / L.该实验在随机嵌段设计中排列，在暴露于重金属的60天后，进行宏观和微量营养素的评估以及根部，茎和叶片干物质中的铅含量和铅含量和积累。结果表明，铅申请增加了P含量，几乎不影响S，Ca和Mg含量。通常，Cu，Fe和Mn含量呈现减少; Zn含量没有影响，而宏观和微量营养素累积则减少。根部，茎和叶片干物质中的铅含量和积累随着施用的剂量而增加。

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