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Copper concentration of vineyard soils as a function of pH variation and addition of poultry litter BABT
Nachtigall,Gilmar Ribeiro; Nogueirol,Roberta Corrêa; Alleoni,Luís Reynaldo Ferracciú; Cambri,Michel Alexandro.
Copper (Cu) concentration was evaluated as a function of pH variation and addition of poultry litter to a Dystrophic Lithic Udorthent and a Humic Dystrudept from the state of Rio Grande do Sul, Brazil, cultivated with vines treated with successive applications of Cu-based product. Samples were collected from the surface layer (0 to 10 cm). Soluble Cu concentration was determined using DTPA and Mehlich III as extractants, and exchangeable Cu was determined in CaCl2. The availability of Cu was mainly affected by the soil pH. CaCl2 extractant had the best correlation with Cu concentration in contaminated soils, according to treatments applied. The addition of poultry litter did not reduce Cu availability in these soils. Total soil Cu content varied between...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vineyard soils; Chemical extractors; PH and soil organic matter.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000700005
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