Biblioteca do Café

URI permanente desta comunidadehttps://thoth.dti.ufv.br/handle/123456789/1

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2011 - 201912020 - 20231

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Autor: search.filters.author.Franco, Miguel Henrique RosaAssunto: search.filters.subject.Sistemas agroecológicos e orgânicos

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Agora exibindo 1 - 2 de 2
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    Multispectral images for discrimination of sources and doses of fertilizer in coffee plants
    (Universidade Federal de Viçosa, 2023-06-16) Rezende, Camila Isabel Pereira; Assis, Gleice Aparecida de; Martins, George Deroco; Carvalho, Fábio Janoni; Franco, Miguel Henrique Rosa; Araújo, Nathalia Oliveira de
    Remote monitoring of the management of coffee crops is necessary as the demand in decision-making, where the aim is to rise production based on sustainable management is in a constant growth. In this work, it was evaluated the potential of images obtained by low-cost sensors in the discrimination of sources and doses of mineral and organomineral fertilizers in coffee. The experimental design was in randomized blocks, with five blocks and six treatments, as follows: (T1) - 100% of the organomineral treatment; (T2) - 70% of the organomineral treatment; (T3) - 50% of the organomineral treatment; (T4) - 100% of mineral fertilization; (T5) - standard treatment of the farm and (T6) - 70% of mineral fertilization. After management, we used the Mapir 3 Survey3W camera coupled to an ARP drone – Phantom4 to take images of the experiment over a 12-month vegetative period. Combined with image taking, it was collected agronomic parameters of coffee growth and productivity for two crops and concluded that different fertilization doses did not significantly affect the analyzed parameters. Based on the supervised classification of multispectral images, it was possible to discriminate treatments with a higher degree of accuracy (86.66% accuracy) than when analyzing coffee growth parameters.
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    Interferência de adubos verdes na fitossociologia da comunidade infestante em áreas de transição para o cultivo orgânico de café
    (Embrapa Café, 2011) Alecrim, Ademílson de Oliveira; Freitas, Ana Flavia de; Schiavon, Nykolas Carvalho; Carvalho, Felipe Paolinelli de; Avelar, Moises de; Franco, Miguel Henrique Rosa; França, André Cabral
    A finalidade desse estudo foi verificar os efeitos dos insumos orgânicos e convencionais na dinâmica de plantas daninhas da lavoura durante o primeiro e o segundo ano de transição agroecologica.