Crescimento inicial pós plantio de mudas de Enterolobium contortisiliquum (Vell.) Morong., em três volumes de tubetes

Abstract

The experiment was conducted at the greenhouse at the Federal University of Bahia Reconcavo, Campus Cruz das Almas. Were used seedlings Enterolobium contortisiliquum with 120 days produced in tube of 50, 180 and 280 cm3. The seedlings were transplanted into bags of 35 x 40 cm (approximately 15,597 cubic centimeters of soil) as a way to simulate a field situation for observing the performance of the seedlings after removal of the tube, to which they were produced. For this the bags were filled with planting area of soil and fertilized with NPK (04-14-08) 100g per bag. The experiment was conducted in completely randomized design with three treatments, four replicates per treatment and four seedlings per replication, totaling 48 seedlings. The seedlings were kept for 120 days and evaluated every 30 days in height and diameter, thus obtaining its increase, the first assessment at the time of transplanting in the bag. The dry weight of the root area, and was obtained at 120 days. Data were subjected to analysis of variance (α = 0.05), the qualitative factors were compared by Tukey test. Seedlings produced in 180 and 280 cm3 tubes show statics similarities, at the end of the 120 days after the plantation. The experiment of simulation in the field it was found that are satisfactory seedlings grown in tubes 180 cm3 for species with economy of the substrate, nursery space, cost in the transportation and effort in planting.