Data/hora: 01/06/2024 06:45:46

Provedor de dados: 	52	
País: 	Brazil	
Título: 	Copper concentration of vineyard soils as a function of pH variation and addition of poultry litter	
Autores: 	Nachtigall,Gilmar Ribeiro; Nogueirol,Roberta Corrêa; Alleoni,Luís Reynaldo Ferracciú; Cambri,Michel Alexandro.	
Data: 	2007-11-01	
Ano: 	2007	
Palavras-chave: 	Vineyard soils; Chemical extractors; PH and soil organic matter.	
Resumo: 	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 1,300 and 1,400 mg kg-1 in both soils. Copper available fractions, extracted by DTPA, CaCl2 and Mehlich III, averaged 35, 0.2 and 63%, respectively, of the total Cu present in the soil.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000700005	
Editor: 	Instituto de Tecnologia do Paraná - Tecpar	
Relação: 	10.1590/S1516-89132007000700005	
Formato: 	text/html	
Fonte: 	Brazilian Archives of Biology and Technology  v.50 n.6 2007	
Fonte: 	info:eu-repo/semantics/openAccess