Alteraciones químicas y fitodisponibilidad de níquel en suelo tratado con lodo albañal
Autor: | Henriqueta Maria Gimenes Fernandes, Antonio Enedi Boaretto, Takashi Muraoka, Cassio Hamilton Abreu Junior, Felipe Carlos Alvarez V., Anderson Ricardo Trevizam |
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Jazyk: | Spanish; Castilian |
Rok vydání: | 2008 |
Předmět: | |
Zdroj: | Química Nova, Volume: 31, Issue: 5, Pages: 990-997, Published: 2008 Química Nova v.31 n.5 2008 Química Nova Sociedade Brasileira de Química (SBQ) instacron:SBQ |
Popis: | The alteration of soil chemicals and its influence on availability (DTPA extractant method) and phytoavailability (63Ni L-value, isotopic method) of Ni was studied in sewage sludge-amended soil at different pHs. The soil pHs were 4.3, 5.3 and 5.9 and the rates of sewage sludge (SS) 0, 15, 30, 45 and 60 Mg ha-1. The chemical and physicochemical soil characteristics were altered by the SS rate and increased the Ni availability and phytoavailability. The isotopic method (63Ni L-value) was more efficient in predicting the Ni phytoavailability that the Ni-DTPA extractant in soil pHs 5.3 and 5.9. |
Databáze: | OpenAIRE |
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