FERTILIZACIÓN INTEGRAL DE MAÍZ (Zea mayz L.) A PARTIR DE BIOINSUMOS

Abstract

Current fertilization plans are based on inorganic fertilizers use of, but considering other options such as: organic fertilizers and bio-fertilizers. The objective of this research was to evaluate the effect of inorganic fertilizers, organic (compost) and bio-fertilizers (dissolving phosphorus (SF)  and fixing nitrogen-free life bacterias (FNVL), on the DANAC 255 corn hybrid development. Five fertilizing options were assessed: conventional, conventional + organic fertilizer + biofertilizers, organic fertilizer + SF+FNVL and organic fertilizer + SF. The experimental design was completely randomized, with 6 replications for a total of 30 experimental units. Changes of OM, P and K contents in the soil and in N and P at foliar level, as well as biometric variables of the crop were determined during the test. Results show that the T3treatment, increased levels of OM, N, and P and on the soil, by combining 50% of conventional fertilization with organic fertilizers and with bio-fertilizers, with values higher than those reported in the conventional fertilization, therefore, the integrated fertility management is feasible to maintain yields and lower production costs.