Niveles de fertilización en el cultivo de maní (Arachis hypogaea L.).

Abstract

An investigation was established in the canton of El Carmen via Venado, 800 meters from the sides of the cheese factory, at geographical coordinates: 0°16'31.8" S and 79°28'30.1" W, with the general objective of evaluating the productive response of the peanut crop (Arachis hypogaea L. ) in nitrogen, phosphorus and potassium levels in El Carmen, Manabí; for this a completely randomized block design (DBCA) was proposed, establishing a total of 11 treatments with 3 replications each, from which 33 experimental units are obtained, under the use of N, P and K levels; the data obtained in relation to the averages were compared with the tukey test at 5% probability; the doses of the established levels were; for Nitrogen: 0, 40, 80 and 120 kg ha-1 for Phosphorus: 0, 40, 80 and 120 kg ha-1 and for Potassium: 0, 25, 50 and 75 kg ha-1; the variables to be measured were plant height, number of nodes, leaves and flowers per plant, in addition to the number of capsules per plant and crop yield per hectare. The results obtained determined that there were no significant differences (p > 0.05 for the agronomic variables of the crop, i.e., plant height, number of nodes, leaves and flowers per plant; as for crop yield, significant differences (p < 0.05) were determined among the treatments, with the medium dose of N (80 kg ha-1), high dose of P (80 kg ha-1) and low dose of K (25 kg ha-1) having a higher average than the other treatments, reaching 5822.22 kg ha-1.