BLACK-WATTLE GROWTH IN REPONSE TO APPLICATION OF NITROGEN, PHOSPHORUS AND POTASSIUM

• Autor(a) principal: Schumacher, Mauro Valdir
• Data de Publicação: 2016
• Outros Autores: Viera, Márcio, Londero, Eduardo Kneipp, Calil, Francine Neves, Lopes, Vicente Guilherme, Witschoreck, Rudi
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Cerne (Online)
• Texto Completo: https://cerne.ufla.br/site/index.php/CERNE/article/view/875
• topic: Acacia mearnsii; forestry nutrition; fertilization.

Due to the lack of information about Black-wattle fertilization, this study evaluated black-wattle plants growth in response to different fertilization levels of nitrogen, phosphorus and potassium six years after implantation. The statistical design used was a randomized blocks with trifatorial distribution. Total height (m), diameter at breast height (DBH) (cm) and stem volume with bark (m³ ha-1) were evaluated. Black-wattle showed a positive and significant growth response to N and P (interaction) fertilizations and absence for K. m To obtain the maximum development of black-wattle, for the soil and climate condition studied, it is required the use of the maximum dose of nitrogen (40.0 kg ha-1 N) and 78.9 kg ha-1 phosphorus, not requiring the addition of potassium.