Variabilidade espacial da resistência do solo e sua correlação no componente espectro temporal do cafeeiro

Coffee is one of the main agricultural crops in Brazil, with significant economic relevance. This study was conducted in a coffee plantation located at the Federal Institute of Minas Gerais, Campus São João Evangelista, using the Topázio 1190 and Catiguá MG2 varieties. The objective was to evaluate the relationship between soil penetration resistance (SPR) and spectral reflectance obtained from Sentinel-2 satellite imagery. The analysis included field data and spectral indices (NDVI, SAVI, and NDWI) extracted from the Google Earth Engine for the years 2022 and 2023. The results indicated that, in 2022, significant correlations were observed between SPR and the spectral indices, with higher resistance associated with elevated index values and greater vegetation density. However, in 2023, these correlations were less evident, suggesting the influence of environmental factors, such as water deficit, on the dynamics of plant development. The study highlights the potential of remote sensing as a tool for integrated crop monitoring and soil management.