For composted industrial wastes have high potential to use as substrate for seedling production of ornamental species, therefore that the aim of this work was to evaluate emergency and plant growth of ornamental Capsicum and Celosia in substrate based of tannery sludge compost. The experiment was carried out in trays and substrates were: tannery sludge compost, tannery sludge compost + 10% vermiculite, tannery sludge compost + 20% vermiculite, commercial substrate used as control. In the tannery sludge compost there was an increase in the rate of seedling emergence only for ornamental pepper. For the plant biomass, height and root length the highest values occurred in treatments where the substrate was tannery sludge compost as compared as with commercial substrate. The higher value of root biomass was obtained when the substrate was tannery sludge composted associated with 10% vermiculite. The tannery sludge compost may be a potential alternative for use as substrate in seedling production of ornamental Capsicum and celosia.
industrial waste; composting; ornamental plant; seedling
