Título:	Soil fertility and upland rice yield after biochar application in the Cerrado.
Autoria:	PETTER, F. A. MADARI, B. E. SILVA, M. A. S. da CARNEIRO, M. A. C. CARVALHO, M. T. de M. MARIMON JÚNIOR, B. H. PACHECO, L. P.
Afiliação:	FABIANO ANDRÉ PETTER, UNIVERSIDADE FEDERAL DO PIAUÍ; BEATA EMOKE MADARI, CNPAF; MELLISSA ANANIAS SOLER DA SILVA, CNPAF; MARCO AURÉLIO CARBONE CARNEIRO, UNIVERSIDADE FEDERAL DE GOIÁS; MARCIA THAIS DE MELO CARVALHO, CNPAF; BEN HUR MARIMON JÚNIOR, UNIVERSIDADE ESTADUAL DE MATO GROSSO; LEANDRO PEREIRA PACHECO, UNIVERSIDADE FEDERAL DE GOIÁS.
Ano de publicação:	2012
Referência:	Pesquisa Agropecuária Brasileira, v. 47, n. 5, p. 699-706, maio 2012.
Conteúdo:	The objective of this work was to evaluate the effect of biochar made from Eucalyptus on soil fertility, and on the yield and development of upland rice. The experiment was performed during two years in a randomized block design with four replicates, in a sandy loam Dystric Plinthosol. Four doses of NPK 05-25-15, annually distributed in stripes (0, 100, 200 and 300 kg ha-1), and four doses of biochar (0, 8, 16 and 32 Mg ha-1), applied once in the first year - alone or with NPK - were evaluated. In the first year, biochar positively affected soil fertility [total organic carbon (TOC), Ca, P, Al, H+Al, and pH], at 0-10 cm soil depth, and it was the only factor with significant effect on yield. In the second year, the effect of biochar diminished or was overcome by the fertilizer. TOC moved down in the soil profile to the 0-20 cm depth, influencing K availability in this layer. In the second year, there was a significant interaction between biochar and the fertilizer on plant growth and biomass dry matter accumulation.
Thesagro:	Carbono Acidez do solo Arroz Oryza sativa Cerrado Fertilidade do solo Macroelemento
NAL Thesaurus:	biochar
Palavras-chave:	Fitomassa
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPAF)