Sierra-Alarcón, A. M.; Moreno-Oviedo, Y.; Mancipe-Muñoz, E. A.; Avellaneda-Avellaneda, Y.; Vargas-Martínez, J. de J. Effect of Nitrogen and Phosphate Fertilization on Perennial Ryegrasses and Red Clovers: Evaluation of Nitrogen and Phosphate Fertilization on Perennial Ryegrasses and Red Clovers. Agron. Mesoam. 2019, 30, 841-854.