PRODUÇÃO DE MUDAS DE Hymenaea stigonocarpa Mart. ex Hayne E Hymenaea courbaril L. UTILIZANDO IODO SUÍNO

Abstract

The Cerrado is the most biodiverse savanna in the world. Among this great diversity of tree species we can mention jatobá do cerrado and jatobá da mata. They stand out due to their great economic and medicinal potential. However, there is little information on the production of seedlings with swine sludge as substrate. Given the above, the objective of this study was to evaluate if swine sludge is indicated for the production of Hymenaea stigonocarpa and Hymenaea courbaril seedlings and to indicate which percentage of swine sludge in the substrate formulation promotes the best seedling characteristics. The experiment was conducted at IF Goiano Rio Verde - GO, with a completely randomized experimental design consisting of five treatments (0, 25, 50, 75 and 100% swine sludge) three replicates with 10 replicates each. 100 cm³ polypropylene tubes were used for sowing. Nutritional, physiological, biometric, biomass and seedling quality index analyzes were performed. Data were subjected to analysis of variance and when significance was found, regression analysis was used. There was a significant increase in nitrogen and phosphorus contents in the cerrado and forest jatobá seedlings and the reduction of potassium for cerrado species, resulting in the reduction of physiological, biometric and biomass parameters, and the use of swine sludge for these species is not recommended. species, and further research on different conditions is needed to obtain satisfactory results for seedling production.