Data/hora: 09/06/2024 06:10:54

Provedor de dados: | Pesquisa Agropecuária Brasileira
País: | Brazil
Título: | Biochar in substrate composition for production of teak seedlings
Autores: | Rezende,Fabiana Abreu; Santos,Victor Alexandre Hardt Ferreira dos; Maia,Claudia Maria Branco de Freitas; Morales,Marina Moura.
Data: | 2016-09-01
Ano: | 2016
Palavras-chave: | Tectona grandis; Agroindustrial waste; Biochar activity; Pyrolysis; Seedling quality.
Resumo: | Abstract The objective of this work was to evaluate the development and quality of clonal seedlings of teak (Tectona grandis) grown in substrate with two types of biochar. The assay was carried out in a randomized complete block design, with ten treatments and four replicates: CS, commercial substrate, composed of pine bark and vermiculite at a ratio of 4:1; NS, nursery substrate composed of carbonized rice husk and coconut fiber at 1:1; and the remaining treatments were composed of the inclusions of biochar (BC) or activated biochar (BCA) in the CS, at the proportions of 25, 50, 75, and 100%. The development and quality parameters of seedlings were evaluated 90 days after striking the minicuttings in the substrates. BCA substrate additions at 25, 50, and 100% allowed for a development of height and stem diameter comparable to that of the NS. Biochar without the activation procedure does not improve quality parameters of seedlings, in comparison with the commercial substrate. The use of 25% activated biochar added to the commercial substrate is enough to improve seedling growth performance to the same level as that provided by the already validated NS.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000901449

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/s0100-204x2016000900043
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.51 n.9 2016
Fonte: | info:eu-repo/semantics/openAccess