TY - JOUR AU - Raulino, Gabriela de Castro AU - Oliveira, Lucas de Sousa AU - Nascimento, Icaro Vasconcelos AU - da Silva, Cillas Pollicarto AU - Lobato, Márcio Godofrêdo AU - Alencar, Thiago Leite AU - Toma, Raul Shiso AU - da Silva, Francisca Gleiciane AU - Mota, Jaedson Cláudio PY - 2021/05/08 Y2 - 2024/03/28 TI - Assessing the soil color by traditional method and a smartphone: a comparison JF - Revista de Ciencias Agrícolas JA - rcia VL - 38 IS - 1 SE - Research Article DO - 10.22267/rcia.213801.146 UR - https://revistas.udenar.edu.co/index.php/rfacia/article/view/5810 SP - 75-85 AB - <p>Based on the hypothesis that there is a high agreement between pedologists and a smartphone application in the assessment of soil color; the objective was to compare the perceptions of pedologists and an application in obtaining the color of an <em>Argissolo</em> [Lixisol] (A, E and B horizons). &nbsp;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.</p> ER -