Soto Bravo, Freddy, and María Alejandra Angulo Guillén. “Nitrogen and Chlorophyll Concentration in Leaves of Hydroponic Sweet Pepper in Greenhouse under Different Irrigation and Nutrition Management Strategies”. Agronomía Costarricense 48, no. 1 (March 18, 2024): 39–56. Accessed August 16, 2024. https://revistas.ucr.ac.cr/index.php/agrocost/article/view/59126.