The study was conducted at the "Fundo Almendra", property of the National University of the Peruvian Amazon (UNAP), located in the town of Puerto Almendra, district of San Juan Bautista, province of Maynas, Loreto region (9576945 N, 680112 E). The main objective was to determine the effect of biorganic and chemical fertilizers on the initial growth of Caryodendron orinocense H. Karst. "metohuayo" and Cedrelinga cateniformis D. Ducke. "tornillo". The statistical design was a Randomized Complete Block Design (RCBD) with four replications in a 1-hectare agroforestry system with the treatments: T1= organic substrate (gallinaza-black earth+sand), T2= SO + 100 g NPK (20-20-20), T3= SO + 100 g Phosphoric Rock, T4= SO + FBO (Bio-Organic Fertilization). The results show that in the two forest species there is an increase in the initial growth in plant height, stem diameter and number of leaves, b...