Peña Castillo, R. A. and Galecio Julca, M. Ángel (2018) “Application of rice husk as a source of silicon and mineral fertilization of lemon (Citrus aurantifolia) in sandy soils – Piura”, Revista de Investigaciones de la Universidad Le Cordon Bleu, 5(1), pp. 45–63. doi: 10.36955/RIULCB.2018v5n1.004.