Uso de biossólido na produção de mudas de Eucalipto (Citriodora Hook)

Abstract

Due to the increase of the world population and the deposition of waste produced in the residences and industries, the use of biosolids in the agricultural activity becomes more and more common, being one of the most sustainable alternatives for the management of sewage sludge produced. Aiming at this work, to analyze the use of biosolids in the development and quality of eucalyptus seedlings produced in tubes. The experiment was carried out in a greenhouse at the Federal University of Uberlândia, using the substrate of the company Bioplant® and Biossolid purchased at the sewage treatment plant of the DMAE in Uberlândia. The treatments were carried out in two types of eucalyptus seedlings (CMG, CSP), and five doses of biosolid (0, 5, 10, 15, 20% ) With four replicates, generating 40 plots. Each plot was constituted of five tubes, containing one molt per tube. They were packed in polypropylene trays, yielding 200 cells. At 120 days, the characteristics height, diameter of the colon, root dry mass, aerial shoot mass and robustness index of the seedlings produced were evaluated. The biosolids showed that their use as a substrate increased linear development of eucalyptus seedlings due to the composition of nutrients and organic matter. There was more linear growth in the height and the lap diameter in the CMG seedlings, and there was more linear growth of shoot dry mass in the CSP seedlings.