Navegando por Autor "Delgado, José Fernando de Oliveira"

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    Desenvolvimento de dosador de fertilizantes sólidos de dupla esteira
    (Universidade Estadual do Norte do Paraná, 2021-07-30) Delgado, José Fernando de Oliveira; Nicolosi, Mateus Marrafon; http://lattes.cnpq.br/5740779198324583; Silva, Marcos Augusto Alves da; https://orcid.org/0000-0002-5570-8677; http://lattes.cnpq.br/4973981237909142; Silva, Marcos Augusto Alves da; https://orcid.org/0000-0002-5570-8677; http://lattes.cnpq.br/4973981237909142; Kölln, Oriel Tiago; https://orcid.org/0000-0002-8507-9808; http://lattes.cnpq.br/8041626078120100; Alves, Karina Aline; https://orcid.org/0000-0002-8916-0224; http://lattes.cnpq.br/6915234182529881
    The distribution of granular fertilizers is carried out together with sowing and acquired more use with direct planting, which seeks to turn over as little of the soil as possible, but they must be used rationally. Considering the importance of fertilization, the objective of this work was to develop a new concept of fertilizer metering for seeders with a simple technology fertilizer metering mechanism ensuring uniform application. The experiment was carried out in three stages divided between the development of the solid fertilizer dosing prototype, bench testing of the prototype and different inclinations, carried out in the Mechanical Engineering laboratory of the Pitágoras Unopar University, Campus Bandeirantes-PR, and finally the field experiment carried out in the city of Vicentinópolis-GO, using corn crop and fertilizer formulation 08-28-18, implemented in November 2020. The design was in randomized blocks with 02 treatments, in T1 (helical feeder) and T2 (doser conveyor belt), with sampling of 31 sequential plants. The plots consisted of 05 lines of corn, 100 m long by 2.5 m wide, totaling 250 m², and considering the useful area of the central lines of each treatment. The variables analyzed were: height of ear insertion, stem diameter, longitudinal distribution between plants and yield per plant at the end of the crop cycle. The obtained results were submitted to the analysis of control charts of individual values and moving range. The treatments showed similar distribution between plants with an average of 36.7 cm, however, the uniform distribution of fertilizer by T2 (DDE) had an average productivity per plant of 272.72 g compared to T1 (DH) which was 255.4 g per plant, totaling 13,792.12 kg ha⁻¹ for T1 and 14,702.98 kg ha⁻¹ for T2, which represents a real productivity gain of 6.6%.