REDUÇÃO NO TEMPO DO CULTIVO DE ALFACE (lactuca sativa), USANDO FOTOESPECTROS ARTIFICAIS E ESTIMATIVA DOS CUSTOS ADICIONAIS PARA A REGIÃO DE TUBARÃO- SANTA CATARINA.
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Data
2022-06-12
Tipo de documento
Estudo de Caso
Título da Revista
ISSN da Revista
Título de Volume
Área do conhecimento
Ciências Agrárias
Modalidade de acesso
Acesso aberto
Editora
Autores
Santos, Eri Igor A.
Orientador
Nunes, Julio César de Oliveira
Coorientador
Zanco, Jasper
Resumo
O estudo de alternativas na produção de alimentos hoje é quase que uma obrigação devido a necessidade mundial, quando chegamos à próximo aos 9 bilhões de habitantes no planeta. Produzir em escala e nos perímetros urbanos, representa um dos maiores desafios destes novos tempos. O conhecimento da fisiologia das plantas e suas necessidades em cada fase, fazem com que modelos artificiais e melhorados como: a Hidroponia sejam cada vez mais usados para a produção de alimentos. O objetivo avaliar a produtividade da alface (Lactuca sativa L.) comparando o sistema convencional de plantio no solo, com o hidropônico, mas ainda usando dois tipos de lâmpadas fotossinteticamente ativas, visando a redução no tempo de cultivo e calcular o custo financeiro e energético do uso dessas lâmpadas artificiais. O Delineamento experimental foi montado com quatro tratamentos, sendo: T1 Convencional, T2 Hidroponia, T3 Hidroponia com Lâmpada LED e T4 Hidroponia com lâmpada de vapor metálico. Após 30 dias de cultivo a produção de alface foi melhor no tratamento 3 com média de 498,9 gramas, diferindo estatisticamente após análise estatística ANOVA e teste-F, usando o teste de Tukey ao nível de 5% de probabilidade. O uso desse tipo de lâmpada mostrou que se pode reduzir em até 20% o tempo de cultivo, resultando em mais 2,5 cultivos em um ano de produção. Mesmo com o gasto energético em cima do consumo, o uso desse sistema se mostrou viável economicamente, podendo ser recomendado. Como conclusão, novos estudos devem ser realizados, associados a novas tecnologias, visando incrementar resultados e minimizar custos e o antecipar o tempo de produção.
The study of alternatives in food production today is almost an obligation due to global need when we reach the next 9 billion inhabitants on the planet. Producing in scale and in urban areas represents one of the biggest challenges of these new times. The knowledge of the physiology of plants and their needs in each phase, make artificial and improved models such as: Hydroponics increasingly used for food production. The objective was to evaluate the productivity of lettuce (Lactuva sativa L.) comparing the conventional system of planting in the soil, with the hydroponic one, but still using two types of photosynthetically active lamps, aiming at reducing the cultivation time and calculating the financial and energy from the use of these artificial light bulbs. The experimental design was set up with four treatments, being: T1 Conventional, T2 Hydroponics, T3 Hydroponics with LED Lamp and T4 Hydroponics with metallic vapor lamp. After 30 days of cultivation, lettuce production was better in treatment 3, reaching an average of, with an average of 498.9 grams, differing statistically after ANOVA statistical analysis and F-test, using Tukey's test at the level of 5% of probability. The use of this type of lamp has shown that cultivation time can be reduced by up to 20%, resulting in 2.5 more crops in a year of production. Even with the energy expenditure on top of consumption, the use of this system proved to be economically viable and can be recommended. In conclusion, new studies must be carried out, associated with new technologies, aiming to increase results and minimize costs and to anticipate production time.
The study of alternatives in food production today is almost an obligation due to global need when we reach the next 9 billion inhabitants on the planet. Producing in scale and in urban areas represents one of the biggest challenges of these new times. The knowledge of the physiology of plants and their needs in each phase, make artificial and improved models such as: Hydroponics increasingly used for food production. The objective was to evaluate the productivity of lettuce (Lactuva sativa L.) comparing the conventional system of planting in the soil, with the hydroponic one, but still using two types of photosynthetically active lamps, aiming at reducing the cultivation time and calculating the financial and energy from the use of these artificial light bulbs. The experimental design was set up with four treatments, being: T1 Conventional, T2 Hydroponics, T3 Hydroponics with LED Lamp and T4 Hydroponics with metallic vapor lamp. After 30 days of cultivation, lettuce production was better in treatment 3, reaching an average of, with an average of 498.9 grams, differing statistically after ANOVA statistical analysis and F-test, using Tukey's test at the level of 5% of probability. The use of this type of lamp has shown that cultivation time can be reduced by up to 20%, resulting in 2.5 more crops in a year of production. Even with the energy expenditure on top of consumption, the use of this system proved to be economically viable and can be recommended. In conclusion, new studies must be carried out, associated with new technologies, aiming to increase results and minimize costs and to anticipate production time.
Palavras-chave
Cultivo Protegido, Alface, Hidroponia, Led, Energia