Hiram Ponce, Claudio Cevallos, Ricardo Espinosa and Sebastián Gutiérrez 2021. Estimation of Low Nutrients in Tomato Crops Through the Analysis of Leaf Images Using Machine Learning. Journal of Artificial Intelligence and Technology. 1, 2 (Apr. 2021), 131–137. DOI:https://doi.org/10.37965/jait.2021.0006.