Banca de DEFESA: STÉFANNY APARECIDA RIBEIRO

Adaptation of the millicomposting process for its use in domestic and urban environments in the Metropolitan Region of the City of Rio de Janeiro.

Gongs; Organic waste; Quality seedlings; Organic agriculture; Lactuca sativa L; Capsicum baccatum L.

Millicompost is considered an important biological decomposition mechanism of organic waste to obtain high quality organic substrates. It presents itself as a technique that is characterized by the use of millipedes of different species, which in partnership with microorganisms act in the decomposition of different types of organic vegetable residues generated in urban and rural agricultural properties, considered important sources of nutrients. In this sense, the objective of this work was to conduct and evaluate the adaptation process of millicompost, from the use of vegetable waste from backyards, tree pruning, lawn mowing, among other urban activities, using it as a fragmenting agent gongolos, also known as 'snake lice'. In Chapter I it was observed that the millipede Trigoniulus corallinus can consume a wide range of residues, but that there are residues that they presented a better acceptability when made available for consumption, it was also observed that there is a limitation of consumption of residues of ornamental plants with reports of toxicity to other organisms. In Chapter II it was possible to state that from the point of view of chemical, physical and physical-chemical characteristics it is possible to vary both N-rich residues and residues with an intermediate C/N ratio. However, it is believed that there may be deficiencies of some nutrients when using the millicompost, but it was also observed that the values of pH, electrical conductivity (EC) and total and available nutrients were adequate for its use. In Chapter III, it was confirmed that it is feasible to use millicompost produced from different combinations of residues rich in N and with an intermediate C/N ratio as substrates in the production of quality lettuce and pepper seedlings. And in Chapter IV it was observed that the quality of the seedling did not influence the productivity of young finger pepper in relation to the substrate used to produce the seedling, but that there was a positive influence of the quality of the seedling transplanted to the field on the productive performance of the lettuce crop.