EFECTO DEL NITRÓGENO, HIERRO Y MOLIBDENO EN LA FIJACIÓN BIOLÓGICA DE N EN EL CULTIVO DE MANÍ (ARACHIS HYPOGAEA L) VARIEDAD TARAPOTO.

Abstract

PEANUT (ARACHIS HYPOGAEA L) IS A RELATIVELY IMPORTANT CROP BECAUSE IT IS HIGHLY DESIRED BY HUMANS, AND BECAUSE IT IS A LEGUME IT IS CONSIDERED ONE OF THE CROPS THAT CAN IMPROVE SOIL QUALITY. THE OBJECTIVE OF THIS RESEARCH WAS TO EVALUATE THE EFFECT OF NITROGEN IRON AND MOLYBDENUM ON THE BIOLOGICAL FIXATION OF N IN THE CULTIVATION OF PEANUTS (ARACHIS HYPOGAEA L) VARIETY TARAPOTO. THIS WORK WAS CARRIED OUT AT THE SAN JACINTO SITE IN THE LODANA PARISH OF THE SANTA ANA CANTON, MANABÍ PROVINCE. THE TREATMENTS WERE ESTABLISHED UNDER A COMPLETELY RANDOMIZED BLOCK DESIGN (DBCA), WITH EIGHT TREATMENTS AND THREE REPETITIONS. THE TREATMENTS CONSISTED OF COMBINATIONS OF NITROGEN (0 APPLICATION - 160 KG HA-1), MOLYBDENUM (0 APPLICATION - 2.8 KG HA-1), AND IRON (0 APPLICATION - 2 KG HA-1). THE VARIABLES EVALUATED WERE; DRY MATTER OF THE ORGANS (ROOT, STEM, LEAVES, SHELL OF PODS AND GRAINS), YIELD IN SHELL, NUMBER OF PODS, NUMBER OF NODULES FORMED, PERCENTAGE OF ACTIVE NODULES, NITROGEN CONCENTRATION IN LEAVES (FLOWERING) AND ABSORPTION OF MACRONUTRIENTS. THE RESULTS SHOWED HIGHLY SIGNIFICANT DIFFERENCES IN DRY MATTER (STEM, ROOT, LEAF, SHELL) AND YIELD, BEING TREATMENT 3 THE ONE THAT REACHED THE HIGHEST VALUES.