Papers

Summary

The objective of this work was to evaluate the behavior of seedlings of eucalypt (Eucalyptus urograndis) in different substrates contends doses of metallurgy residues. The experiment was installed and green house, in the FCAV/UNESP, located in the city of Jaboticabal, SP, using itself dumb clones of eucalypt (Eucalipus urograndis). The experiment was carried out in a completely randomized design, 2 factors arrangement (4x3), with four replicates per treatment, corresponding substrates and levels of metallurgy residue, respectively. Had been used 36 polyethylene vases with a volume of approximately 4 liters, placing themselves a dumb one for vase. The used substrate and that they had given origin to the treatments had been the following ones: residue slag (EFC) in the following doses: 6,67 EFC1 = g; EFC2 = 15,5 g and 31.11 EFC3 = g. The cyclone desmoldadores residue (CD) in the doses: 6,67 CD1 = g, CD2 = 15,5 g and 31.11 CD3 = g. and cyclone sand system residue (CSA) in the doses 6.11 CSA1 = g, CSA2 = 15,5 g and 31.11 CSA3 = g. And the witness with 9,31 g/vase of potassium chloride, 140 g/vase of simple superphosphate and 8,19 g/vase of urea. In all the treatments had been applied limy in the dose of 0,432 g/vase. They had been evaluated: number of leaf and branches, height of the plant, leaf area, chlorophyll content, stress of the plant, dry matter of stem, root and leaf. Analyses of variance, correlation had been carried through and analyze of regression of the studied variable. The cyclone residues of the desmoldadores had been presented as the best component of substrate for the development of the seedlings of eucalypt, in the levels 6,67 CD1 = g and CD2 = 15,5 g.