CRESCIMENTO INICIAL DE ERVA MATE (Ilex paraguariensis A. St. Hil) SUBMETIDA À ADUBAÇÃO MINERAL E ORGÂNICA EM DOIS SISTEMAS DE CULTIVO

• Ano de defesa: 2022
• Autor(a) principal: GIRARDI, ELISSON
• Orientador(a): Ávila, Fabricio William de
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual do Centro-Oeste
• Programa de Pós-Graduação: Programa de Pós-Graduação em Ciências Florestais (Mestrado)
• Departamento: Unicentro::Departamento de Ciências Florestais
• País: Brasil
• Palavras-chave em Português: Esterco; Consorciação; Sustentabilidade; Nutrição florestal
• Palavras-chave em Inglês: Manure; Intercropping; Sustainability; Plant nutrition
• Área do conhecimento CNPq: CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL; RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL::MANEJO FLORESTAL
• Link de acesso: http://tede.unicentro.br:8080/jspui/handle/jspui/2079

The State of Paraná is the main national producer of yerba mate (Ilex paraguariensis A. St. Hil.) in Brazil. The yerba mate raw material covers the sectors of food, cosmetics, pharmaceuticals, hygiene products, being „chimarrão‟ is the most commercialized product from yerba mate. The objective of this work was to evaluate soil chemical fertility, plant nutritional status and initial growth of yerba mate under the effects of mineral and organic fertilization in two cropping systems, monoculture and intercropping with Mimosa scabrella Benth. Two field experiments were installed in the region of Irati-PR, Brazil; in one experiment, yerba mate was planted in a monoculture system, and in another, yerba mate was planted in intercropping with Mimosa scabrella. The design used was in randomized blocks, with three replications, in a 3x2 factorial scheme, with three treatments of soil fertilization (without fertilization, with mineral fertilization and with organic fertilization) and two provenances of yerba mate. Fertilizers were supplied to the soil in the planting hole, with the mineral fertilizer composed of the formulated NPK (14-14-14) of controlled release and the organic fertilizer composed of the sheep manure. Soil chemical analysis was performed at 360 DAT (days after transplanting the seedlings to the field) in two layers (0-20 and 20-40 cm depth). At 360 and 460 DAT, foliar nutrient contents were determined and shoot height and collar diameter of the yerba mate plants were measured. Mineral and organic fertilization increased soil P content. Soil K content was increased with mineral fertilization and soil Mg content was higher with organic fertilization, while the other soil fertility attributes were not affected by the treatments. Foliar contents of N, Ca, S Cu and B were affected by yerba mate provenance and cultivation system. Soil fertilizations affected the foliar contents of Mg, Fe and B. Foliar contents of the other nutrients (N, P, K, S, Mn and Zn) were not influenced by the treatments. The effects of soil fertilization on the growth of yerba mate varied according to the provenance and cultivation system. Planting fertilization was important for the growth of yerba mate in the field. Organic fertilization, added as sheep manure, had an effect similar to that of mineral fertilization on initial growth of yerba mate.