Cultivo de Feijão-caupi com emprego de inoculante, adubos orgânicos e mineral

Abstract

The use of organic fertilizers in the production system has contributed significantly to the improvement of soil management, because they act in the physical, chemical and biological essential for crop production. The study aimed to evaluate the effect of application of manure, bio- fertilizer and inoculation with nitrogen-fixing bacteria and mineral fertilizers in the cultivation of cowpea. The study was conducted at the Experimental Farm of the Federal Rural University of Pernambuco / Academic Unit of Garanhuns (UFRPE / UAG). The experimental design was a randomized block consisting of nine treatments and three replications. The treatments were: T - absolute control; E - manure; B - biofertilizers; I - inoculant; EI - manure + inoculant; BI - biofertilizers + inoculant; EB - manure + biofertilizers; EBI – manure + biofertilizer inoculant; AM - mineral fertilizer. The following variables were evaluated: number of days to flowering (NDF), plant height (ALTC), number of leaves per plant (NFP), leaf area (AF), dry biomass of the aerial part (SDW), pod length (CV) , number of pods per plant (NVP), number of seeds per pod (NGP), number of grains per plant (NGP), weight of 100 grains (P100G), final stand (EF) and grain yield. The cultivation of cowpea should be performed with the use of mineral fertilizers to achieve high productivity. The cow manure and its association with biofertilizer and inoculant must be employed in the cultivation of Cowpea when it is absent mineral fertilization.