Resumo

RODRIGUEZ-PETIT, A.; CLAVERO, T.; RAZZ, R.  e  CARDENAS, C.. Crecimiento de Racosperma mangium Willd en fase de vivero irrigada con aguas residuales. Rev. Fac. Agron. [online]. 2005, vol.22, n.2, pp.121-129. ISSN 0378-7818.

Abstract An experiment was carried in order to evaluate the effect of waste waters irrigation on Racosperma mangium Willd growth under nursery conditions in the Waters Research Center of La Universidad del Zulia, Venezuela. The treatments were five different levels of waste waters (0, 25, 50, 75 y 100%) which were applied daily. Aerial (AL) and root length (RL), aerial (ADW) and root dry weight (RDW), number of leaf (NL) and total leaf area (LA) were evaluated weekly during 12 weeks. The results showed a highly significant effect (P<0.01) of the treatments on all evaluated variables except RL. The highest AL value (29.28 cm), ADW and RDW (5.16 and 3.00 g), NL and LA (17.77 and 325.43 cm²) were obtained with 100% of waste waters. The irrigation with waste waters is an effective alternative to promote high growth of R. mangium in nursery phase.

Palavras-chave : Racosperma mangium; nursery; waste waters; growth; development.