Juvenile eucalypt plant coppicing and sprout management in agroforestry system

• Autor(a) principal: Cacau, Filipe Valadão
• Data de Publicação: 2008
• Outros Autores: Reis, Geraldo Gonçalves dos, Reis, Maria das Graças Ferreira, Leite, Hélio Garcia, Alves, Frederico de Freitas, Souza, Felippe Coelho de
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Pesquisa Agropecuária Brasileira (Online)
• Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/955
• topic: Eucalyptus; eucalypt clone; sprout thinning; charcoal wood; stand recovering; Eucalyptus; clone de eucalipto; desbrota; madeira para carvão; recuperação de povoamentos

This study aimed to evaluate juvenile eucalypt clone plant coppicing, in order to obtain small diameter logs, in the first rotation, which facilitates harvesting by small farmers; or to recover damaged young stands and to produce biomass for energy in short rotations. The experiment was carried out in an agroforestry system with 9.5x4 m spacing. Intact plant growth was compared to sprout growth from coppicing at nine and twelve months after planting. At six or nine months after coppicing, sprout thinning was carried out to leave two or three sprouts per stump. When thinning was done after 12 months of coppicing, all dominant sprouts were left. A treatment without thinning was also evaluated. Forty-two months after planting, treatment without thinning showed about the same amount of sprouts per stump as those thinned to three sprouts per stump. The estimated asymptotic value for sprout diameter was 69% of that for intact plants. The asymptotic value for sprout production, for most treatments of plants coppiced nine months after planting, was similar to that obtained for intact plants, which indicates that coppicing young eucalypt plants, without sprout thinning, can be used in agroforestry systems.