| The aim of this work was to measure the effect of ash, collected from the boiler of a pulp mill and applied in doses equivalent to 0, 10, 20, 40 and 80 t.ha-1 on the chemical characteristics of the soil and on the development and absorption of nutrients for Pinus taeda L. seedling potted with CAMBISSOLO Humico from the 0-20 cm layer in Piraí do Sul, PR. Portions of the soil were placed in pots and aliquots of each treatment were applied to the first 0-10 cm layer after filled the pots with 20 cm of soil. Needles and soil (0-10, 10-20 and 20-30 cm layers) were analyzed. The height, diameter and dried biomass of aerial part, the root - MSR and total were evaluated. The application of ash reduced the acidity and the concentration of Al, and increased the... |
