| 污泥混合基质栽培生菜重金属含量的影响因素研究 |
| 摘要点击 1581 全文点击 1526 修订日期：1993-06-20 |
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| 中文关键词 污泥 Zn Ni 基质栽培 生菜 |
| 英文关键词 sludge Zn Ni medium culture Lactuca sativa var. longifolia |
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| 中文摘要 |
| 通过基质盆栽生某试验研究污泥用量,基质容量和采收期对生菜重金属Zn、Ni含量的影响。结果表明,污泥用量与生菜重金属含量的关系因基质容量大小而变化。在小基质容量条件下,污泥用量高者重金属含量低而产量高。生菜重金属含量随采收期不同而变化。本文讨论了上述结果的原因及其在生产、科研中的重要性。 |
| 英文摘要 |
| A lettuce growing medium pot experiment was conduCted to study the effects of the rate of sludge application, the volume of medium and harvest time on the contents of heavy medals Zn and Ni in Lettuce. It was found that the relationship between the rate of sludge application and the content of heaVy metals varied with the growing medium.Under the condition of a small volume of medium, a higher rate of sludge applied led to a lower content Of heavy metal but a higher yield of Lettuec. The heavy metal bud a content in Lettuce depending on the harvest time. The causes for feeding to the above results and their implication for the production of Lettuce were also discussed. |
