Engenharia Agrícola e Ambiental (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/13
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APP - Artigo Publicado em Periódico
TAE - Trabalho Apresentado em Evento
TCC - Trabalho de Conclusão de Curso
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6 resultados
Resultados da Pesquisa
Item Potencial hídrico e osmótico da cultura do amendoim sob manejo da irrigação por pulsos com diferentes níveis de salinidade da água(2020) Gouveia, Rafaela Julia de Lira; Silva, Manassés Mesquita da; http://lattes.cnpq.br/2249840331584869; http://lattes.cnpq.br/0829353667600951Item Uniformidade de vazão, índice de vegetação normalizada e produtividade da cana-de-açúcar sob irrigação por gotejamento(2022-06-06) Silva Júnior, José Santino da; Silva, Manassés Mesquita da; http://lattes.cnpq.br/2249840331584869; http://lattes.cnpq.br/7667530223951004Given the importance of irrigating agricultural crops, it is necessary to determine the uniformity of water distribution to ensure the quality of irrigation, frequent monitoring of irrigated areas must be carried out in order to observe the dynamics and conditions of cultivation. In view of this, the present work was developed with the objective of evaluating the quality of irrigation of sugarcane at Usina Vale Verde - Baia Formosa. The study was carried out between February 2021 and February 2022, at Fazenda Pedrosa, belonging to Usina Vale Verde and located in the municipality of Bahia Formosa-RN. A total area of 15 ha was used, subdivided into five sectors of 3 ha each. At the end of the sugarcane cycle, for each of the sectors, the irrigation system flow uniformity coefficient (CUD) and crop productivity were determined. In addition, in six seasons throughout the crop development, the mapping of the Normalized Difference Vegetation Index (NDVI) of the soil cover was carried out, through the QGIS software, using Sentinel-2 satellite images made available by the spatial database of the United States Geological Survey (USGS). The NDVI determination was performed by the ratio between the reflectance difference of the near infrared (band 04) and red (band 08) bands, under their sum, the NDVI images were classified according to the vegetation cover density in phytophysiognomies. After evaluating the data obtained in the present study, it was found that the CUD values have a direct correlation with the productivity of the place, as well as the NDVI images showed higher values in the areas of greater CUD and productivity, thus, the CUD and NDVI are important variables as a source of information in decision making in improving irrigation quality.Item Simulação de produtividade em função de diferentes níveis de uniformidade para cultura do feijão carioca com irrigação localizada(2023-04-13) Batista, Arthus Douglas; Mélo, Ralini Ferreira de; http://lattes.cnpq.br/4296426234246190; http://lattes.cnpq.br/2013424295271323Water is one of the main factors for agricultural production and one of the most used parameters to evaluate the irrigation system is the uniformity of the application of the water layer over the irrigated area. This work was carried out with the objective of evaluating the productivity of the common bean (Phaseolus vulgaris L.) cv. Carioca due to different levels of uniformity simulated using Solver, which is a software for mathematical programming integrated into an electronic spreadsheet (Excel). The Keller & Karmeli (1975) model was used as a reference for simulations of the water depths of a system with drip irrigation and the productivity was estimated according to the methodology proposed by Figueredo et al. (2008). As a result, the highest mean depth value (568.1 mm) and lowest productivity (1991.3 kg ha-1) of the common bean crop were obtained for the system that presented a CUC of 65%. On the other hand, the lowest mean depth value (416.4 mm) and highest productivity (2981.1 kg ha-1) were obtained for a system with 95% CUC. In a direct comparison, a 26.7% reduction in the mean blade value and a 49.71% increase in productivity were noted, thus confirming that a system with greater uniformity is more efficient.Item Sistema de irrigação móvel por gotejamento: revisão sistemática com análise da produção científica através de indicadores bibliométricos e cientométricos(2023-04-05) Gusmão, Amanda Cristina Santos; Mélo, Ralini Ferreira de; Guedes, Flávio Leôncio; http://lattes.cnpq.br/3331772351336203; http://lattes.cnpq.br/4296426234246190; http://lattes.cnpq.br/2331589393641621One in nine people in the world do not have access to enough quality food to maintain a nutritional range corresponding to a healthy life. In Latin America, Brazil is an important global food producer with great potential to expand supply. Brazil has a potential of approximately 14% of the global capacities for incorporating new unproductive areas for irrigated agriculture. Agriculture is one of the activities that most demand the use of water for growing food and maintaining crops in different regions of the world, as well as the need to manage and improve water efficiency is in evidence worldwide. Science is continually looking to mitigate water loss in irrigation, and the mobile drip irrigation system (MDI) has particularities that can help reduce some parameters, such as reducing water runoff. In this sense, the objective of this study was to understand the current state of scientific production on the MDI System, through a systematic review with analysis of scientometric and bibliometric indicators. The distribution of study sites suggests a local interest from the United States and Brazil. The most frequent terms analyzed in the word cloud from the titles of the articles focus on words related to irrigation and the most frequent terms in the cloud referring to the words used in the abstracts show an emphasis on irrigation systems, management and efficiency in use from water. When analyzing the networks by co-occurrence of words, it was observed that the synergy occurs around the term drip irrigation, with terms that demonstrate a trend in soil moisture and soil water, water management. The US is the country where the largest number of MDI-related articles are located. Finally, the potential collaborations of the factorial analysis verified two clusters focused on issues of irrigation systems and the management and management of water use, thus it is concluded that the authors are aiming at a new technology, in which irrigation is interconnected with the water usemanagement.Item Teores foliares de macronutrientes na cultura do amendoim sob irrigação por pulsos com águas salobras(2019) Silva, Anna Cecília Ribeiro Alves da; Silva, Gerônimo Ferreira da; http://lattes.cnpq.br/4596017290307351; http://lattes.cnpq.br/5703744281984653Item Análise comparativa entre os custos de instalação e manutenção de um sistema de irrigação por aspersão escamoteável e por gotejamento enterrado em paisagismo(2020) Silva, Aline Pereira de Oliveira Lima; Silva, Vicente de Paulo; http://lattes.cnpq.br/3590522665927472; http://lattes.cnpq.br/6542691023753535