Valoración productiva de un biodigestor compacto y su efecto en la fertilización de kykuyo (Pennisetum clandestinum).

Abstract

This research was carried out with the pourse of quantifying and valuing the productive potential of a compact biodigester, through the microbiological characterization and chemical composition of the biofertilizer and its effect on Kikuyo fertilization (Pennisetum clandestinum). The methodology included quantitative research consisting of 12 experimental units (plots), whose dimensions were 30 m2 (6x5m) giving a total área of 360 m2. A weight function was worked , for which a representative sample of each plot was cut, using a quadrant of 1m2 , the weigth obtained was related to 100% of the plot, and the production in tons per hectare per cut was subsequently estimated, of each treatment, the study of the chemical and microbiological composition of the bio fertilizer produced in a compact bio digester. As well as the effect of fertilization of this producto on the production of Kikuyo, in four treatment at 0 days (control), 20 days (T1), 30 days (T2), and 40 days (T3), with 3 repetitions each. The results showed that statistically, the height variable was higher in T3 with 32.40 cm, compared to 16.60 cm for the control. Not so with regard to forage production, where treatments did not differ statistically from each other, however, treatment T3 recorded a production of 66.91 t/ha while the control reached only 26.03 t/ha. With respect to the bromatological content of the biofertilizer, meets the characteristics of a fertilizer that provides beneficial nutrients for both the soil and plant. The benefit/cost análisis recorded the greatest economic return, with the T3 treatment. It is recommended to apply the biofertilizer on a plot of kikuyo each cut after 40 days.