Evaluación del efecto nutricional que genera la cepa nativa Rhizobium phaseoli en cultivos asociados de leguminosas y gramíneas, en la Provincia El Carchi

Abstract

Abstract:The objective of the present investigation was to evaluate the nutritional effect caused by the native strains of Rhizobium phaseoli (nitrogen fixers), extracted from the root nodules of beans (Phaseolus vulgaris). Trials were established using a randomized complete block design with nine treatments and five replications totaling 45 experimental units. The associated treatments (legumes and grasses), were morochillo with beans, morochillo with pea and morochillo without associating, the biofertilizer inoculated with different concentrations of 1 ml, 2 ml, 3 ml, of the native strain Rhizobium phaseoli was used. All treatments grew in controlled systems for irrigation and temperature. The nutritional efficiency was determined at the foliar level at 28 days by the cell extract method as well as the foliar physical-chemical analysis by the Kjeldahl method at 75 days in the laboratory. It was concluded that the native strain Rhizobium phaseoli generated better results in the nutritional assimilation of nitrogen for legumes associated with grasses and with the 3 ml dose.