Evaluación del potencial como biofertilizante de azotobacter vinelandii y methylobacterium symbioticum aplicadas en pastos de la Parroquia San Andrés del Cantón Guano

Abstract

At present, it is intended to see alternatives that reduce the amount of pollutants generated by chemical fertilizers in agriculture. Therefore, this project aimed to evaluate the potential as a biofertilizer of Azotobacter vinelandii and Methylobacterium symbiotic applied in pastures of the San Andrés parish of Guano canton. For this, four types of biofertilizer were elaborated: Azotobacter vinelandii A1 (108), Methylobacterium symbioticum M1 (108), Azotobacter vinelandii A2 (109) and Methylobacterium symbioticum M2 (109) and it was applied in plots located in a plot of the community of mess. The data collection of morphological variables was carried out at the beginning of the investigation, 15 days after the first application and 20 days after the second application of the biofertilizer. In addition, soil samples were taken at the beginning and end of the study to be analyzed in a certified laboratory. From the analysis of results, through the morphological variables, it was found that the biofertilizer based on Methylobacterium symbioticum M2 (109) has better results in length and width of the three pasture variables (Bluegrass, perennial Raygras and national Raygras), without detracting from to the rest of the biofertilizers that compared to the control plot obtained higher values. On the other hand, the results of the soil parameters corroborate the beneficial action that biofertilizers had on soil quality since their macro and micronutrients favoured the development of pasture growth. In this context, it can be said that biofertilizers are a new alternative for communities where these types of pastures are cultivated. They are efficient. However, it is recommended that an economic valuation be carried out in future research compared with commonly used chemical fertilizers.