Salazar-Sosa, Enrique. “Residual Effect of Cow Manure on Silage Corn Yield and Soil Properties”. REVISTA TERRA LATINOAMERICANA 28, no. 4 (December 1, 2010): 381–390. Accessed July 16, 2024. https://terralatinoamericana.org.mx/index.php/terra/article/view/1221.