Effect of sludge recycled paper on stem diameter growth of Eucalyptus Saligna Smith/Efeito de lodo de papel reciclado sobre o crescimento em diametro de colo de Eucalyptus Saligna Smith

The solid waste of recycling paper industry has potential to be used for the correction of soil acidity and as a source of nutrients for agricultural crops and forestry. This study aimed to evaluate the effects of recycled paper sludge on the stem diameter growth of Eucalyptus saligna Smith, based on a 4 x 2 x 5 factorial design, being the factors the dose of the sludge, the top fertilization and the days after treatment, during 120 days. Despite its promising use as corrective of soil, sludge recycled paper hindered the development of stem diameter, and the highest dose damaged the fertilization.