Data/hora: 06/06/2024 03:23:04

Provedor de dados: | 86
País: | Brazil
Título: | Soil fertility and upland rice yield after biochar application in the Cerrado
Autores: | Petter,Fabiano André; Madari,Beáta Emöke; Silva,Mellissa Ananias Soler da; Carneiro,Marco Aurélio Carbone; Carvalho,Márcia Thaís de Melo; Marimon Júnior,Ben Hur; Pacheco,Leandro Pereira.
Data: | 2012-05-01
Ano: | 2012
Palavras-chave: | Biochar; Macronutrients; Plant biomass; Plant growth; Soil acidity; Rice yield.
Resumo: | 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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000500010

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/S0100-204X2012000500010
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.47 n.5 2012
Fonte: | info:eu-repo/semantics/openAccess