Data/hora: 11/06/2024 11:23:30

Provedor de dados: 	90	
País: 	Brazil	
Título: 	ORGANIC MATTER FRACTIONS IN A QUARTZIPSAMMENT UNDER CULTIVATION OF IRRIGATED MANGO IN THE LOWER SÃO FRANCISCO VALLEY REGION, BRAZIL	
Autores: 	Cardoso,José Alberto Ferreira; Lima,Augusto Miguel Nascimento; Cunha,Tony Jarbas Ferreira; Rodrigues,Marcos Sales; Hernani,Luis Carlos; Amaral,Andre Julio do; Oliveira Neto,Manoel Batista de.	
Data: 	2015-08-01	
Ano: 	2015	
Palavras-chave: 	Mangifera indica; Organic carbon; Humic substances; Heavy fraction; Semiarid region.	
Resumo: 	Improper land use has lead to deterioration and depletion of natural resources, as well as a significant decline in agricultural production, due to decreased soil quality. Removal of native vegetation to make way for agricultural crops, often managed inadequately, results in soil disruption, decreased nutrient availability, and decomposition of soil organic matter, making sustainable agricultural production unviable. Thus, the aim of the present study was to evaluate the impact of growing irrigated mango (over a 20 year period) on the organic carbon (OC) stocks and on the fractions of soil organic matter (SOM) in relation to the native caatinga (xeric shrubland) vegetation in the Lower São Francisco Valley region, Brazil. The study was carried out on the Boa Esperança Farm located in Petrolina, Pernambuco, Brazil. In areas under irrigated mango and native caatinga, soil samples were collected at the 0-10 and 10-20 cm depths. After preparing the soil samples, we determined the OC stocks, carbon of humic substances (fulvic acid fractions, humic acid fractions, and humin fractions), and the light and heavy SOM fractions. Growing irrigated mango resulted in higher OC stocks; higher C stocks in the fulvic acid, humic acid, and humin fractions; and higher C stocks in the heavy and light SOM fraction in comparison to nativecaatinga, especially in the uppermost soil layer.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000401068	
Editor: 	Sociedade Brasileira de Ciência do Solo	
Relação: 	10.1590/01000683rbcs20140498	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Ciência do Solo  v.39 n.4 2015	
Fonte: 	info:eu-repo/semantics/openAccess