Seedlings of Anadenanthera macrocarpa (red angico) were grown in 18 x 15 cm black polyethylene bags. The growth medium was sieved and mixed with residues of sugarcane bagasse + decomposed filter cake (3:2, v:v) The objective was the evaluation of the fertilization and inoculation with Rhizobium on the quality of the seedlings. Two experiments were carried out. In each one, separately, ammonium sulfate and ammonium nitrate were added, in three different doses. In both experiments, a specific Rhizobium species was also inoculated together with the seeds. A completely randomized design with three replicates was used. At 180 days after sowing, the seedlings were evaluated for height (H), root collar diameter (D), H/D ratio, shoot and root dry matter weights, leaf area and root regeneration potential. It was concluded that inoculation with Rhizobium was sufficient to stimulate growth of "red-angico" seedlings in this substrate. The tested fertilizers were not efficient for the stimulation of seedling growth.
fertilization; quality of seedlings; morphological characteristics and Rhizobium
