SEWAGE SLUDGE AS SUBSTRATE FOR Tectona grandis L. SEEDLINGS PRODUCTION

Main Article Content

Daniele Rodrigues Gomes Marcos Vinicius Winckler Caldeira William Macedo Delarmelina Elzimar de Oliveira Gonçalves Paulo André Trazzi

Abstract

The sewage sludge is a waste from sewage treatment plants, which can be used in formulations of substrates for

seedling production. This study aimed to evaluate the effects of different proportions of sewage sludge, soil and commercial substrate on the growth characteristics of Tectona grandis seedlings in tubes of 120 cm³ volume capacity. The sewage sludge used came from the STP’s Cachoeiro de Itapemirim / ES. The seedlings were grown in the forest nursery / CCA / UFES. The statistical design used in the experiment was completely randomized design (CRD) with six treatments and five replications. The treatments constituted of sewage sludge : commercial substrate: soil (v: v: v), which corresponded to 20:70:10 (T1), 40:50:10 (T2), 60:30:10 (T3), 80 : 10:10 (T4), 90:0:10 (T5) and the control treatment with 0:90:10 (T6). All variables assessed were significant at the 5% level of probability. The control (T6) showed results statistically equal to or lower than the treatments T3 with 60% of sewage sludge concentration (T3). It follows then that the use of sewage sludge in seedling production is feasible and promising, however, used in a proper proportion.

Article Details

How to Cite
GOMES, Daniele Rodrigues et al. SEWAGE SLUDGE AS SUBSTRATE FOR Tectona grandis L. SEEDLINGS PRODUCTION. CERNE, [S.l.], v. 19, n. 1, p. 123-131, apr. 2016. ISSN 2317-6342. Available at: <http://cerne.ufla.br/site/index.php/CERNE/article/view/883>. Date accessed: 23 sep. 2019.
Keywords
Biosolid, morphological characteristics, seedling quality.
Section
Article