Composto orgânico da bananicultura na produção de mudas de mangabeira

The mangabeira (Hancornia speciosa Gomes) has tasty and nutritious fruits, with excellent market access. However, this species is native to the Cerrado, the biome, which has suffered great loss of its natural vegetation. In this sense, it is important to obtain information about the different species present in this region, mainly the mangabeira. One of the important pieces of knowledge about this plant is in relation to the production of seedlings. Therefore, substrates that are low cost and efficient in their development can be tested. In this sense, the objective was to evaluate the effect of different concentrations of organic compounds from banana farming on the development of mangabeira seedlings. The experiment was carried out in a nursery with a shade screen. The treatments consisted of five concentrations of organic compound produced from banana waste (leaf, pseudostem, stem, heart and discarded fruit): 0; 8.0%; 16%; 24%; and 32%. A randomized block design was adopted, with five replications and five seedlings per plot, all of which were considered in the evaluation. The containers used were plastic bags measuring 20 cm x 30 cm x 0.02 mm thick. These were filled with soil; charred rice husk; cattle manure (tanned) plus the respective concentration of organic compound. At 190 days after the installation of the experiment, data were collected on: height (cm); stem diameter (mm); number of leaves; and mass of fresh and dry matter of the roots (g). The data obtained was analyzed using analysis of variance, and when significant differences were found, regression analysis was applied. Through this study, it was found that the use of organic compost obtained from banana farming waste proved to be viable in the production of mangabeira seedlings.