Data/hora: 01/06/2024 01:32:27

Provedor de dados: 	90	
País: 	Brazil	
Título: 	Changes in a Rhodic Hapludox under no-tillage and urban waste compost in the northwest of Rio Grande do Sul, Brazil	
Autores: 	Moraes,Moacir Tuzzin de; Silva,Vanderlei Rodrigues da; Cherubin,Maurício Roberto; Carlesso,Reimar; Debiasi,Henrique; Levien,Renato.	
Data: 	2014-08-01	
Ano: 	2014	
Palavras-chave: 	Soil organic carbon; Aggregate stability; Total nitrogen; Soil structure; Organic manure.	
Resumo: 	The use of urban waste compost as nutrient source in agriculture has been a subject of investigation in Brazil and elsewhere, although the effects on soil physical and chemical properties and processes are still poorly known. The aim of this study was to evaluate the effect of application of urban waste compost and mineral fertilizer on soil aggregate stability and organic carbon and total nitrogen content of a Rhodic Hapludox under no-tillage in the northwestern region of Rio Grande do Sul, Brazil, in the 2009/2010 and 2010/2011 growing seasons. The experiment was arranged in a 2 × 6 (seasons and fertilization) factorial in a randomized complete block design with four replications. The factor time consisted of two growing seasons (sunflower in 2009/10 and maize in 2010/11) and the factor fertilization of five rates of urban waste compost (0, 25, 50, 75 and 100 m³ ha-1), and mineral fertilizer. Soil samples were collected from the 0.0-0.10 m layer to determine aggregate stability (mean weight and geometric diameter), soil organic carbon (SOC) and total nitrogen (TN). Rates of up to 75 m³ ha-1 of urban waste compost, after two years of application to no-tillage maize and sunflower, improved aggregation compared to mineral fertilization in a Rhodic Hapludox. After the second crop, the SOC and TN contents increased linearly with the levels of urban waste compost.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000400028	
Editor: 	Sociedade Brasileira de Ciência do Solo	
Relação: 	10.1590/S0100-06832014000400028	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Ciência do Solo  v.38 n.4 2014	
Fonte: 	info:eu-repo/semantics/openAccess