Data/hora: 21/06/2024 05:59:30

Biblioteca(s): 	Embrapa Agrossilvipastoril; Embrapa Florestas.	
Data corrente: 	30/03/2021	
Data da última atualização: 	31/03/2021	
Autoria: 	MORALES, M. M.; COMERFORD, n. b.; BEHLING, M.; ABREU, D. C. de; GUERRINI, I. A.	
Afiliação: 	MARINA MOURA MORALES, CNPF; NICHOLAS BRIAN COMERFORD, University of Hawaii; MAUREL BEHLING, CPAMT; DANIEL CARNEIRO DE ABREU, UFMT; IRAÊ AMARAL GUERRINI, UNESP.	
Título: 	Biochar chemistry in a weathered tropical soil: kinetics of phosphorus sorption.	
Ano de publicação: 	2021	
Fonte/Imprenta: 	Agriculture, v. 11, n. 4, 295, 2021. 13 p.	
DOI: 	https://doi.org/10.3390/agriculture11040295	
Idioma: 	Inglês	
Conteúdo: 	The phosphorus (P) chemistry of biochar (BC)-amended soils is poorly understood. This statement is based on the lack of published research attempting a comprehensive characterization of biochar?s influence on P sorption. Therefore, this study addressed the kinetic limitations of these processes. This was accomplished using a fast pyrolysis biochar made from a mix of waste materials applied to a highly weathered Latossolo Vermelho distrofico (Oxisol) from São Paulo, Brazil. Standard method (batch method) was used. The sorption kinetic studies indicated that P sorption in both cases, soil (S) and soil-biochar (SBC), had a relatively fast initial reaction between 0 to 5 min. This may have happened because adding biochar to the soil decreased P sorption capacity compared to the mineral soil alone. Presumably, this is a result of: (i) Inorganic phosphorus desorbed from biochar was resorbed onto the mineral soil; (ii) charcoal particles physically covered P sorption locations on soil; or (iii) the pH increased when BC was added SBC and the soil surface became more negatively charged, thus increasing anion repulsion and decreasing P sorption.	
Palavras-Chave: 	Batch method; Fast pyrolysis; P retention; Pirólise rápida; Retenção de fósforo.	
Thesaurus Nal: 	Biochar.	
Categoria do assunto: 	W Química e Física	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/222240/1/Marina-MORALES-et-al.-2021-Agriculture.pdf	
Registro original: 	Embrapa Florestas (CNPF)	
Exemplares: 	CNPF - (57644-1) - UPC - AP - DD -  -  -  - DIS
CPAMT - (1620-1) - UPC - AP - DD -  -  -  - DIS