| 标题 |
Metal accumulation in earthworms (Oligochaeta: Lumbricidae) in fertilization with swine sludge
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| 其它 | The study intended to distinguish the metal accumulation in earthworm tissues (Fe, Mg, Ni) after fertilization with swine residual water (50 m(3).ha(-1)). The study was conducted in a Chernozem (FAO System), in culture of Zen mays L. The collected data consisted of soil analyses on two depth intervals: 0-10 cm and 10-20 cm, respectively, and earthworm tissue analyses to establish the metal uptake by earthworm species. Earthworms were extracted from soil using formaldehyde solution according to the international standard ISO 23611-1/2006. The content of metals in soil were determined by flame atomic absorption spectrometry. The earthworm number and weight considerably increased in treatments fertilized with swine residual water, confirming once again the earthworms' preference for the organic matter provided by the residual water. |
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(2025-6-4)
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