Biossólido como substrato para produção de mudas de toona ciliata VAR. australis

Abstract

The demand for wood for various purposes increases dramatically to meet the demand and need to produce forest seedlings in quantity and quality, to establish good stands. In this sense, the success of forest plantations is not linked solely to the species used, but directly depends on the type of container, the quality of seeds and substrate used. The objective of this work was to evaluate the influence of biosolids as substrate for the production of seedlings of Australian cedar (Toona ciliata). The experiment was conducted in a greenhouse at forest nursery/CCA / UFES. The experimental design was completely randomized, consisting of six treatments with biosolids, in decreasing proportions associated with subsoil, and two treatments without the use of biosolids (manure + soil and commercial substrate, respectively), with 8 repetitions. In general, the best results for the morphological analysis were obtained using 100 to 70% of biosolids in the substrate. Therefore, the biosolids can be considered suitable for the growth of seedlings of Toona ciliata which demonstrates a viable alternative for disposal of this waste.