Data/hora: 09/06/2024 02:02:29

Provedor de dados: | 90
País: | Brazil
Título: | Chemical and physical properties of organic residues
Autores: | Higashikawa,Fábio Satoshi; Silva,Carlos Alberto; Bettiol,Wagner.
Data: | 2010-10-01
Ano: | 2010
Palavras-chave: | Substrate; Organic residue; Soil contamination; Residue disposal.
Resumo: | Due to human activity, large amounts of organic residue are generated daily. Therefore, an adequate use in agricultural activities requires the characterization of the main properties. The chemical and physical characterization is important when planning the use and management of organic residue. In this study, chemical and physical properties of charcoal, coffee husk, pine-bark, cattle manure, chicken manure, coconut fiber, sewage sludge, peat, and vermiculite were determined. The following properties were analyzed: N-NH4+, N-N0(3)-, and total concentrations of N, P, S, K, Ca, Mg, Mn, Zn, Cu, and B, as well as pH, Electrical Conductivity (EC) and bulk density. Coffee husk, sewage sludge, chicken manure and cattle manure were generally richer in nutrients. The EC values of these residues were also the highest (0.08 - 40.6 dS m-1). Peat and sewage sludge had the highest bulky density. Sodium contents varied from 0 to 4.75 g kg-1, with the highest levels in chicken manure, cattle manure and sewage sludge. Great care must be taken when establishing proportions of organic residues in the production of substrates with coffee husk, cattle or chicken manure or sewage sludge in the calculation of the applied fertilizer quantity in crop fertilization programs.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000500026
Editor: | Sociedade Brasileira de Ciência do Solo
Relação: | 10.1590/S0100-06832010000500026
Formato: | text/html
Fonte: | Revista Brasileira de Ciência do Solo  v.34 n.5 2010
Fonte: | info:eu-repo/semantics/openAccess