Osuna-Canizalez, Felipe de Jesús. “Polypropylene Row Cover and Potassium Fertilization With Fertigation: Implications in Growth, Yield and Nutrition of Tomato”. REVISTA TERRA LATINOAMERICANA, vol. 25, no. 1, Mar. 2007, pp. 069-76, https://mail.terralatinoamericana.org.mx/index.php/terra/article/view/1440.