Mudas de Mimosa caesalpiniaefolia Benth (Leguminosae: Mimosoideae) cultivadas em substratos orgânicos

Success in growing forest species, such as sage (Mimosa caesalpiniaefolia Benth), depends essentially on the use of good quality seedlings. At this stage of production, several materials have potential for use, mainly, organic waste. However, there is little information about the potential for the use of these residues in the production of seedlings. In view of the above, the objective was to evaluate the initial development of sapiens' seedlings due to the use of organic substrates. The experiment was conducted in a greenhouse belonging to the Soil Science Department (SSD) of the Federal University of Ceara , Fortaleza, Ceara. The experimental design was completely randomized with four treatments, as follows: bovine manure + sand (BM), goat manure + sand (GM), rabbit manure + sand (RM), all in a ratio of 1: 1, and control the sand base (S) with six replicates. At 84 days after sowing the plants were collected for the determination of the following variables: leaf number (LN), plant height (PH), stem diameter (SD), root length (RL), shoot dry mass (SDM) and root dry mass (RDM). With the exception of the RL variable, all variables were significantly influenced by the use of the substrates. LN showed higher averages when grown in goat or bovine manure. In relation to PH and SD, LN-like behavior was observed, however, for SD, rabbit manure was statistically similar to bovine and goat. Thus, sage seedlings can be produced on a substrate basis of bovine and goat manure in a mixture with sand in a ratio of 1: 1. The best initial development of sage saplings occurs with the use of substrate based on bovine manure.