La presente investigación se desarrolló con el objetivo de determinar el efecto de enterobacterias nativas en el desarrollo vegetativo de Zea mays L. “maíz” amarillo duro híbrido, en condiciones de invernadero, como una alternativa para disminuir el uso de fertilizantes químicos. Se investigaron 100 enterobacterias previamente aisladas de la rizósfera de malezas asociadas a cultivos de maíz y caracterizadas in vitro como promotoras del crecimiento de plantas. En laboratorio las enterobacterias nativas sintetizaron 0,62 – 52,90 ppm de ácido indolacético, fijaron nitrógeno, cuantificándose 1,03 – 30,21 ppm de amonio y solubilizaron 1,00 – 4,05 ppm de fosfato. Con las bacterias cultivadas en agarnutritivo a 30°C, por 24 horas, se obtuvo una suspensión en solución salina esterilizada NaCl 0,85% p/v, cuya concentración se estandarizó por espectrofot...

This research was developed with the aim of determining the effect of native enterobacteriaceae in the vegetative development of Zea mays L (corn). The yellow “corn”, under greenhouse conditions as an alternative to reduce the use of chemical fertilizers. 100 enterobacteriaceae were investigated, they were isolated from the rhizosphere of weed associated with the corn crops and characterized in vitro as plants growth promoters. In the laboratory, the native enterobacteriaceae were quantified to 1,03 – 30,21 ppm of fixed nitrogen as ammonia; 1,03 – 30,21 ppm indole acetic acid and 1,00 – 4,05 ppm solubilized phosphorus. These enterobacteriaceae were grown with nutrient agar at 30° C for 24 hours, it obtained a dilution was made into sterile saline 0.85% NaCl w/v, which concentration was standardized by spectrophotometry (600 nm) and poured plate to 9,0 x 108 CFU mL-1 and inocul...