Evaluación del valor nutritivo y forrajero del pasto marandú (Brachiaria brizantha) con dos niveles de biol en la comuna Dos Mangas

Abstract

The nutritional and forage value of the Marandú grass (Brachiaria brizantha) was evaluated with two levels of biol in the Dos Mangas Commune, at 20, 35 and 50 days at the cut, in addition to studying the agronomic behavior and quantifying the Cost Benefit Index (B/C). This research was carried out in the Dos Mangas Commune located at 7 kilometers northeast of Manglaralto from the Santa Elena Canton; Province of Santa Elena, under a Completely Random Design with bifactorial arrangement, having as factor A the days to the cut and factor B the levels of biol, with a duration of 75 days of research the experimental units were constituted by 27 plots with an area of 20 m², with a total area of 540 m². In the percentage of protein, statistical differences were reported (P <0.05), with the best responses being reached at 20 and 35 days with 10.26; 11.98%, when applying 0; 25% of biol, regarding the fiber, highly significant differences were identified (P <0.01), giving the highest fiber content was recorded at 50 days of cutting with 0% of biol with a value of 39, 40%, in terms of forage production in green (t /FV/ha), statistical differences were identified (P> 0.05), between treatment averages, obtaining the highest forage production 50 days after cutting and 25% of biol with 9.11 t / FV / ha, concluding that by applying two doses of biol we obtained the best result in the T2B25 treatment, presenting the highest production of green forage and dry matter, recommending to evaluate the productivity of pastures with the use of different types of organic fertilizers, thus replacing the dependence on chemical fertilization and thereby achieving a sustainable and environmentally friendly production.