Data/hora: 09/06/2024 14:55:49

Provedor de dados: 	52	
País: 	Brazil	
Título: 	Use of cassava wastewater treated anaerobically with alkaline agents as fertilizer for maize (Zea mays L.)	
Autores: 	Ribas,Maria Magdalena Ferreira; Cereda,Marney Pascoli; Villas Bôas,Roberto Lyra.	
Data: 	2010-02-01	
Ano: 	2010	
Palavras-chave: 	Reuse; Manipueira; Anaerobic digestion; Hydroxide sodium; Dolomitic limestone.	
Resumo: 	The wastewater of the processing of cassava's flour (manipueira) was submitted to the anaerobic treatment in two phases: acidogenic and methanogenic. In the acidogenic phase, the wastewater was stabilized with NaOH (ASH) and with limestone (ASL). After that, both stabilized effluents were treated by a methanogenic reactor. Then, the effluent of the methanogenic reactor was used as fertilizer on maize in the initial growth stage (30 days), cultivated in pots in a greenhouse. The treatments were T1: control without urea addition (only N from soil); T2: NPK (2.2 g of urea with 45% of N); T3: ASH (84 mL.kg soil-1); T4: ASL (102 mL.kg soil-1); T5: double dose ASH (168 mL.kg soil-1) and T6: double dose ASL (204 mL.kg soil-1). Each treatment was composed by 4 plants/pot in five repetitions. It was observed that all the treatments with stabilized wastewater had favorable effect to the soil pH (&gt; than 7.5) and basis saturation (V%) in the soil around to 90%. The performances of nitrogen absorption by the maize plants were 64, 54, 80 and 78% for T3, T4, T5 and T6, respectively.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000100007	
Editor: 	Instituto de Tecnologia do Paraná - Tecpar	
Relação: 	10.1590/S1516-89132010000100007	
Formato: 	text/html	
Fonte: 	Brazilian Archives of Biology and Technology  v.53 n.1 2010	
Fonte: 	info:eu-repo/semantics/openAccess