Estudo de viabilização da cama de aviário peletizada não compostada como adubo orgânico

Abstract

Brazil is one of the largest producers of poultry in the world, as a consequence generates tons of waste that can cause numerous environmental impacts, however the nutrients present in this residue can present satisfactory results in agronomic activities. In this context, the objective of this study was to study the viabilization of the use of non-compost pellet poultry as an organic fertilizer. Physical-chemical characterization analyzes were carried out in order to evaluate the nutrient content in chicken litters with different breeding cycles to determine the best possible material for the production of chicken bed pellets. Afterwards, agronomic tests were performed to study the agronomic activity of the compound under study. Finally, foliar analyzes were performed to quantify nutrients absorbed by maize (Zea mays) cultivation in systems fertilized with chicken bed pellets and fertilized systems With mineral fertilizer for comparison. The values found for nutrients P, K and mainly N are satisfactory, being within the values determined by the legislation (BRASIL-MAPA) and always close to the values quoted in the literature. The results obtained in the agronomic tests show a good agronomic activity, where we could see a significant advantage in the growth of the maize grown in soil treated with the chicken bed pellet in relation to the growth of corn without fertilization and a small inferiority in relation to the cultivation in Only fertilized with mineral fertilizer. Leaf analysis in some cases showed a higher uptake of some nutrients in maize crops with organic fertilization. Thus, we conclude that the use of a bed of pelleted chicken not composted as fertilizer has good results in the cultivation of crops such as maize (Zea mays).