Morphological behavior of Maize inoculated with Azotobacter chroococcum at reduced dosage of nitrogen fertilizer

The inoculation with bacteria that promote plant growth of the genus Azotobacter, is an alternative for the reduction and optimization of nitrogen fertilizers. The objective of this work was to evaluate the response of maize to the inoculation with Azotobacter chroococcum using different doses and applying 50% of the nitrogen fertilizer, as well as a combination of A chroococcum and vermicompost. The work was carried out under an experimental design in random blocks with four treatments and four replicas. The response of the crop to the treatments was evaluated in morphological characters expressed in percentage of germination of the seed, height of the plant, fresh air weight, radical fresh weight, air dry weight and radical dry weight. The results proved the positive response of the maize crop to the inoculation with A. chroococcum and of A. chroococcum with vermicompost in all the variables studied. The best result was obtained with the combined application of A. chroococcum + vermicompost at doses of 15 l ha and 2 t hare spectively, expressed in a percentage of germination of the seed of 98.4%, a height of 1.14 m plant; an air fresh weight of 40.7 g; a radical fresh weight of 20.4 g; an aerial dry weight of 10.1 g and a radical dry weight of 5.1 g

Comportamiento morfológico del Maíz inoculado con Azotobacter chroococcum a dosis reducida de fertilizante nitrogenado

The inoculation with bacteria that promote plant growth of the genus Azotobacter, is an alternative for the reduction and optimization of nitrogen fertilizers. The objective of this work was to evaluate the response of maize to the inoculation with Azotobacter chroococcum using different doses and applying 50% of the nitrogen fertilizer, as well as a combination of A. chroococcum and vermicompost. The work was carried out under an experimental design in random blocks with four treatments and four replicas. The response of the crop to the treatments was evaluated in morphological characters expressed in percentage of germination of the seed, height of the plant, fresh air weight, radical fresh weight, air dry weight and radical dry weight. The results proved the positive response of the maize crop to the inoculation with A. chroococcum and of A. chroococcum with vermicompost in all the variables studied. The best result was obtained with the combined application of A. chroococcum + vermicompost at doses of 15 l ha and 2 t hare spectively, expressed in a percentage of germination of the seed of 98.4%, a height of 1.14 m plant; an air fresh weight of 40.7 g; a radical fresh weight of 20.4 g; an aerial dry weight of 10.1 g and a radical dry weight of 5.1 g.La inoculación con bacterias promotoras del crecimiento vegetal del género Azotobacter, es una alternativa para la reducción y optimización de los fertilizantes nitrogenados. El objetivo de este trabajo fue evaluar la respuesta del maíz (Zea mays) a la inoculación con Azotobacter chroococcum empleando diferentes dosis y aplicando el 50 % del fertilizante nitrogenado, así como una combinación de A. chroococcum y vermicompost. El trabajo se realizó bajo un diseño experimental en bloques al azar con cuatro tratamientos y cuatro replicas. La respuesta del cultivo a los tratamientos se evaluó en caracteres morfológicos expresados en por ciento de germinación de la semilla, altura de la planta, peso fresco aéreo, peso fresco radical, peso seco aéreo y peso seco radical. Los resultados probaron la respuesta positiva del cultivo del maíz a la inoculación con A. chroococcum y de A. chroococcum con vermicompost en todas las variables estudiadas. El mejor resultado se obtuvo con la aplicación combinada de A. chroococcum y vermicompost a dosis de 15 lha-1 y 2 t ha-1 respectivamente, expresados en un por ciento de germinación de la semilla de 98,4 %, una altura de la planta de 1,14 m; un peso fresco aéreo de 40,7 g; un peso fresco radical de 20,4 g; un peso seco aéreo de 10,1 g y un peso seco radical de 5,1 g

Comportamiento morfológico del Maíz inoculado con Azotobacter chroococcum a dosis reducida de fertilizante nitrogenado

The inoculation with bacteria that promote plant growth of the genus Azotobacter, is an alternative for the reduction and optimization of nitrogen fertilizers. The objective of this work was to evaluate the response of maize to the inoculation with Azotobacter chroococcum using different doses and applying 50% of the nitrogen fertilizer, as well as a combination of A. chroococcum and vermicompost. The work was carried out under an experimental design in random blocks with four treatments and four replicas. The response of the crop to the treatments was evaluated in morphological characters expressed in percentage of germination of the seed, height of the plant, fresh air weight, radical fresh weight, air dry weight and radical dry weight. The results proved the positive response of the maize crop to the inoculation with A. chroococcum and of A. chroococcum with vermicompost in all the variables studied. The best result was obtained with the combined application of A. chroococcum + vermicompost at doses of 15 l ha and 2 t hare spectively, expressed in a percentage of germination of the seed of 98.4%, a height of 1.14 m plant; an air fresh weight of 40.7 g; a radical fresh weight of 20.4 g; an aerial dry weight of 10.1 g and a radical dry weight of 5.1 g.La inoculación con bacterias promotoras del crecimiento vegetal del género Azotobacter, es una alternativa para la reducción y optimización de los fertilizantes nitrogenados. El objetivo de este trabajo fue evaluar la respuesta del maíz (Zea mays) a la inoculación con Azotobacter chroococcum empleando diferentes dosis y aplicando el 50 % del fertilizante nitrogenado, así como una combinación de A. chroococcum y vermicompost. El trabajo se realizó bajo un diseño experimental en bloques al azar con cuatro tratamientos y cuatro replicas. La respuesta del cultivo a los tratamientos se evaluó en caracteres morfológicos expresados en por ciento de germinación de la semilla, altura de la planta, peso fresco aéreo, peso fresco radical, peso seco aéreo y peso seco radical. Los resultados probaron la respuesta positiva del cultivo del maíz a la inoculación con A. chroococcum y de A. chroococcum con vermicompost en todas las variables estudiadas. El mejor resultado se obtuvo con la aplicación combinada de A. chroococcum y vermicompost a dosis de 15 lha-1 y 2 t ha-1 respectivamente, expresados en un por ciento de germinación de la semilla de 98,4 %, una altura de la planta de 1,14 m; un peso fresco aéreo de 40,7 g; un peso fresco radical de 20,4 g; un peso seco aéreo de 10,1 g y un peso seco radical de 5,1 g