“Germination of Seeds of Tomato (Solanum lycopersicum), Papaya (Carica Papaya L.) and Passion Fruit (Passiflora Edulis) Using Organic Substrates”. 2018. Revista Sistemas De Producción Agroecológicos 9 (2): 18-35. https://doi.org/10.22579/22484817.715.