TCC - Agronomia (Sede)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/408
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Resultados da Pesquisa
Item Relatório do Estágio Supervisionado Obrigatório - Avaliação de pós de rocha quanto à dissolução e liberação de nutrientes in vitro(2024-08-02) Esteves, Elayni Araújo; Santos, Jean Cheyson Barros dos; http://lattes.cnpq.br/5698373233632800; http://lattes.cnpq.br/8445926682047407In recent years, the challenges of climate change and soil degradation, aggravated by intensive agriculture, have driven the search for sustainable practices. The use of rock powders as fertilizers presents itself as a promising alternative, due to the slow release of nutrients, reducing losses due to leaching and pollution. This study aimed to characterize and evaluate the solubility of basalt rock powders (PR-01) and actinolite-talc schist (AP-C1) in organic acid solutions (acetic, citric, lactic, malic and oxalic) and in distilled water. Chemical and mineralogical characterization was performed by X-ray fluorescence (XRF) and X-ray diffractometry (XRD). Additionally, samples of the rocks originating from the two powders were impregnated with resin and made on thin slides for petrographic descriptions by optical microscopy. The dissolution experiments quantified pH, electrical conductivity and sodium and potassium contents in the extracted solutions. The results indicated that citric acid was the most efficient in potassium extraction in the PR-01 sample, while acetic acid stood out in the AP-C1 sample. The total chemical analysis by ICP-AES revealed that the AP-C1 sample exceeded the allowed limit for lead (200 ppm), stipulated by Normative Instruction No. 5/2016 of MAPA, making it unsuitable for use as a remineralizer. On the other hand, basalt rock dust has shown great potential as a remineralizer, due to the slow and continuous release of nutrients, minimizing losses and favoring sustainability. Future studies should evaluate the dynamics of other elements in vitro and in vivo, as well as agronomic efficiency in the field, contributing to the development of low-carbon and decarbonization technologies.Item Acompanhamento de lavoura demonstrativa de milho (Zea mays) do programa Prospera Nordeste em Pernambuco(2023-09-15) Barbosa, Marcones Andrade da Silva; Mendonça, Ana Paula Medeiros dos Santos Rodrigues; http://lattes.cnpq.br/9147805649299722; http://lattes.cnpq.br/9463882608306573The corn crop (Zea mays L.) is a plant that belongs to the grass family, or Poaceae, in which it is very sensitive to water deficiencies because it suffers conditions when it comes to climate change. The aim of this work is to study the characteristics of three hybrids, P3853PWU, P3707VYH and P3440, which are designed for the regional conditions of the northern forest zone of Pernambuco. The activities carried out included soil preparation, planting, foundation and top dressing fertilization, nutritional assessment, a survey of pests and diseases and invasive plants, so monitoring the demonstration field is extremely important to observe the development of the crop, as well as knowing how to overcome adversities in order to achieve a better quality product.Item Avaliação da fertilidade do solo e acompanhamento de aplicação foliar nas áreas de fertirrigação por gotejamento na Japungu Agroindustrial(2023-09-04) Nunes, Douglas Kauê Silva; Oliveira, Emídio Cantídio Almeida de; http://lattes.cnpq.br/1078501992095596; http://lattes.cnpq.br/5565211850755355This report aims to describe the activities experienced during the Mandatory Supervised Internship (ESO) period from July to August 2023. The ESO was carried out together with the Research and Extension Group in Plant Nutrition, Fertilization and Soil Fertility (GNAF) coordinated by Professor Dr. Emídio Cantídio Almeida de Oliveira. The data for writing the ESO report were obtained from Japungu Agroindustrial, located in Santa Rita – PB. The activities carried out consisted of evaluating soil fertility in areas cultivated and destined for planting sugarcane, based on chemical analyzes carried out in the last harvest, in order to understand the behavior of certain chemical attributes of the soil, namely: organic matter (M.O), soil acidity, macronutrients, soil sorbent complex and micronutrients. In addition, monitoring of foliar fertilization was also carried out, from nutrient quantity recommendations per hectare to field application. The activities carried out during the ESO period can provide me with an experience and a critical sense not yet obtained in graduation. With this, it was possible to understand how soil correction and foliar fertilization can help increase productivity.Item Relatório de Estágio Supervisionado Obrigatório (ESO)(2023-04-28) Nogueira, Daniel Santos; Oliveira, Emídio Cantídio Almeida de; http://lattes.cnpq.br/1078501992095596This report aims to describe the activities experienced during the supervised internship period (ESO) from March to April 2023. The ESO was carried out together with the research group on nutrition, fertilization and soil fertility coordinated by Professor Emídio Cantídio Almeida from Oliveira. The data for carrying out ESO activities were obtained at the narrow farming farm, located in Baía Formosa – RN. During the internship period, the following were carried out: (I) soil samples were collected with the objective of evaluating the fertility of the areas destined for the planting of sugarcane in lots of seed cane and ratoon cane at the Estreito Agricultural Farm. (II) recommendations for fertilization and use of agricultural correctives, (III) survey of pests and diseases in subsurface dripping lots in sugarcane and (IV) assembly of fertility maps. The activities of soil sampling and recommendation of fertilizers and correctives were for the total area of the farm, in the ratoon cane area. The developed activities were of fundamental importance for the understanding of the processes of cultural treatments. The ESO provided the practical experience of field activities aimed at supervising and coordinating the agronomist. Therefore, it was possible to understand the needs of each area regarding fertility management and how to position agricultural practices to increase the productivity of the farm lots.Item Manutenção de projeto de irrigação e análises de fertilidade do solo: relatório de estágio supervisionado obrigatório(2019) Lima, Robson Hortencio de; Oliveira, Emídio Cantídio Almeida de; http://lattes.cnpq.br/1078501992095596; http://lattes.cnpq.br/4616344961770873