Data/hora: 24/09/2024 15:39:23

Biblioteca(s): 	Embrapa Florestas.	
Data corrente: 	18/12/2018	
Data da última atualização: 	20/12/2018	
Autoria: 	RODRIGUEZ, D. R. O.; ANDRADE, G. de C.; BELLOTE, A. F. J.; TOMAZELLO-FILHO, M.	
Afiliação: 	Daigard Ricardo Ortega Rodriguez, ESALQ; GUILHERME DE CASTRO ANDRADE, CNPF; ANTONIO FRANCISCO JURADO BELLOTE, CNPF; Mario Tomazello-Filho, ESALQ.	
Título: 	Effect of pulp and paper mill sludge on the development of 17-year-old loblolly pine (Pinus taeda L.) trees in Southern Brazil.	
Ano de publicação: 	2018	
Fonte/Imprenta: 	Forest Ecology and Management, v. 422, p. 179-189, Aug. 2018.	
DOI: 	10.1016/j.foreco.2018.04.016	
Idioma: 	Inglês	
Conteúdo: 	Pinus taeda is a principal conifer tree species and has long been used in forest plantations in Southern Brazil. At the same time, experiments have been carried out in order to determine the wood productivity concerning the economic, social and sustainable forest management practices. In that sense, the organic fertilizers, such as the biosolid residues from pulp and paper industries, are one of the alternatives to achieve this sustainability. Nevertheless, few studies addressing this objective have been reported in Brazil. This study aimed to analyze the growth responses of loblolly pine trees treated with different doses of composted pulp-mill sludge and to propose a management guide based on a wood production simulation. A randomized block design with four replicates for every six treatments - control, 20, 40, 60, 80 and 100 t ha&#8722;1 of composted pulp-mill sludge - were carried out in an experimental plantation located in Arapoti, Paraná state, Brazil. Ten 17 year-old-trees for each treatment were selected, the stem variables were analyzed and the stand wood productivity for the optimal dosage was simulated. The trees were significantly influenced by the application of the composted pulp-mill sludge, increasing up to 24, 37 and 127% in stem diameter, height and volume, respectively, and the rotation of the pine plantation control and treated stands was 33 and 21 years, respectively. The forest management applied for a 21- year harvesting cycle (thinning at 7 and 13 years) with 84 t ha&#8722;1 of composted pulp-mill sludge resulted in a wood productivity of 11.9m3 ha&#8722;1 or 5.04 Mg ha&#8722;1 per year. The results confirm the potential application of pulp-mill sludge as a fertilizer to improve the wood productivity of forest plantations established in poor-nutrient sites. Also, the forest management plans, using the guide proposed, could be replicated in loblolly pine and other tree species plantations according to the end use of wood.	
Palavras-Chave: 	Biosolid; Loblolly pine; Management guide; Organic fertilizer; Pulp and paper mill sludge; Wood productivity.	
Thesagro: 	Celulose; Fertilizante; Lodo Residual; Madeira; Papel; Pinus Taeda; Produtividade; Resíduo Industrial.	
Categoria do assunto: 	K Ciência Florestal e Produtos de Origem Vegetal	
Registro original: 	Embrapa Florestas (CNPF)	
Exemplares: 	CNPF - (56625-1) - UPC - AP - DD -  -  -  - DIS