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- Title
Assessing the soil color by traditional method and a smartphone: a comparison.
- Authors
de Castro Raulino, Gabriela Talita; de Sousa Oliveira, Lucas; Vasconcelos do Nascimento, Ícaro; Pollicarto da Silva, Cillas; Rocha Lobato, Márcio Godofrêdo; Leite Alencar, Thiago; Shiso Toma, Raul; Gleiciane da Silva, Francisca; Anunciato Mota, Jaedson Cláudio
- Abstract
Based on the hypothesis that there is a high agreement between pedologists and a smartphone application in the assessment of soil color, this study aimed to compare the perceptions of pedologists and an application in obtaining the color of an Argissolo [Lixisol] (A, E, and B horizons). Ten aggregates of each horizon were collected. In a single day, under the same lighting conditions, three pedologists described the color components (hue, value, and chroma) of each aggregate (dry and moist soil) using the Munsell soil color chart. Each one of the ten aggregates, from each horizon, was photographed (dry and moist soil sequence) using the camera of a Motorola Moto G4 Plus smartphone. The distance of the camera to the aggregates was 25 ± 5 cm. Also, each aggregate was placed on a white sheet of A4 size paper (background). The application used was Soil Analysis Pro. The percentage of agreement between pedologists and application was obtained concerning hue, value, and chroma. The data were subjected to analysis of variance, in a completely randomized design, with ten replicates. Action Stat® software was used for statistical analysis. It was concluded that the agreement between pedologists and the smartphone application was medium for hue and chroma and low for value. For the dry soil condition, there is a high agreement between pedologists and the smartphone application, especially in the perception of hue and chroma. Thus, the smartphone application has the potential to be used in routine descriptions of soil color.
- Subjects
SOIL color; SMARTPHONES; MOBILE apps; SOIL testing; SOIL drying
- Publication
Revista de Ciencias Agricolas, 2021, Vol 38, Issue 1, p75
- ISSN
0120-0135
- Publication type
Article
- DOI
10.22267/rcia.213801.146