Barreto HJ, Pérez C, Fuentes MR, Quelme JL, Larios L. Effect of N-urea on corn yield under a rotation system with a leguminous covering. Agron. Mesoam. [Internet]. 2016Jun.15 [cited 2024Dec.22];5:88-95. Available from: https://revistas.ucr.ac.cr/index.php/agromeso/article/view/25068