Data/hora: 08/06/2024 17:21:23

Provedor de dados: 	64	
País: 	Brazil	
Título: 	Freshwater quality of a stream in agricultural area where organic compost from animal and vegetable wastes is used	
Autores: 	Saran,Luciana Maria; Meneghine,Aylan Kener; Célico,Amanda Schimidt; Pinheiro,Daniel Guariz; Alves,Lucia Maria Carareto.	
Data: 	2017-06-01	
Ano: 	2017	
Palavras-chave: 	EcoPlate; Carcasses and animal waste; Agriculture; Surface water; Composting.	
Resumo: 	ABSTRACT Organic compost from biomass residues constitutes a viable alternative for partial or total replacement of mineral fertilizers for growing vegetables. This study evaluated the effects of compost on the water quality of a stream used mainly for irrigation of agricultural crops cultivated in nearby soil that has been treated with organic compost produced by carcasses, animal and vegetable waste for the last ten years. We sampled water biannually for two years, 2013 and 2014, from five locations along the stream. Physical variables and some chemical variables were analyzed. We also analyzed the total number of coliforms (Escherichia coli). Bacterial populations were compared by carbon substrate consumption. Total phosphorus contents in the samples from 2014 exceeded 0.1 mg L-1. The concentrations of other chemical species analyzed and the results for the physical variables were in accordance with the expected values compared with national and international water quality standards. The environment showed differential carbon source consumption and a high diversity of microorganisms, but our results did not show any evidence that the applied compost is changing the microbial population or its metabolic activity. This study shows that the use of the organic compost in agricultural areas seen does not negatively influence the quality of surface water in the study area. These results are important because the process of composting animal and vegetable waste and the use of compost obtained can be an alternative sustainable for adequate destination of these wastes.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000300263	
Editor: 	Editora da Universidade Federal de Lavras	
Relação: 	10.1590/1413-70542017413037616	
Formato: 	text/html	
Fonte: 	Ciência e Agrotecnologia  v.41 n.3 2017	
Fonte: 	info:eu-repo/semantics/openAccess