Microorganismos Promisorios Fijadores de Nitrógeno, Movilizadores de Fósforo y Potasio para la Formulación de un Bioinsumo de Uso Agrícola
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El uso de insumos químicos sintéticos como fertilizantes y plaguicidas son importantes para el incremento de la productividad agrícola, sin embargo su empleo excesivo puede afectar negativamente el ambiente. Una alternativa favorable son los bioinsumos formulados a partir de microorganismos o extractos vegetales. Con el objetivo de identificar posibles microorganismos viables en la formulación de un bioinsumo fertilizante, se aislaron bacterias nativas no patógenas de los suelos de cultivo con capacidad fijadora de nitrógeno N, y movilizadora de fósforo P y potasio K; tres cepas seleccionadas se emplearon en experimentación in vitro basada en el Diseño estadístico Completamente Aleatorizado DCA con seguimiento semanal durante dos meses, midiendo las concentraciones de N, P, y K en los suelos inoculados. Para determinar estadísticamente la fijación / movilización de los nutrientes a los suelos por parte de las bacterias se implementó un Análisis de Varianza ANOVA empleando el paquete estadístico IBM SPS Statistics ®.
The use of synthetic-chemical compounds such as fertilizers and pesticides are important to crop productivity increment, however its excessive use will affect the soil and water environments negatively. A favorable alternative are the use of microorganisms or plan extracts also known as bioinputs. In order to identify viable microorganisms in the formulation of a biofertilizer, nitrogen-fixing, phosphorus mobilization and potassium solubilization bacteria were isolated from cropland soil with. From the pool of isolated bacteria, three strains were selected and tested in vitro, based on the Fully Randomized Statistical Design RSD. Weekly monitoring was performed during two months, measuring the concentrations of N, P, and K in the inoculated soils. To determine the amount of nutrients bounded to the soil by the bacteria`s metabolism, a variance analysis (ANOVA) was implemented using the IBM SPS Statistics ® package.
Maquisapa SAS
The use of synthetic-chemical compounds such as fertilizers and pesticides are important to crop productivity increment, however its excessive use will affect the soil and water environments negatively. A favorable alternative are the use of microorganisms or plan extracts also known as bioinputs. In order to identify viable microorganisms in the formulation of a biofertilizer, nitrogen-fixing, phosphorus mobilization and potassium solubilization bacteria were isolated from cropland soil with. From the pool of isolated bacteria, three strains were selected and tested in vitro, based on the Fully Randomized Statistical Design RSD. Weekly monitoring was performed during two months, measuring the concentrations of N, P, and K in the inoculated soils. To determine the amount of nutrients bounded to the soil by the bacteria`s metabolism, a variance analysis (ANOVA) was implemented using the IBM SPS Statistics ® package.
Maquisapa SAS