Valoración productiva de un biol y su efecto en la fertilización de la Medicago sativa (alfalfa nacional) en la Hacienda Pacahuan.

Abstract

In the farm “Pacahuan”, belonging to, Quimiag parish of Riobamba was evaluated the chemical composition of a biofertilizer produced in an artisanal biodigester, as well as the effect of fertilization (Factor A: 0, 2, 4 and 6 l/ha) of this product on the productivity rate expressed in green forage (FV) and dry matter (DM) of Medicago sativa, which was evaluated after the equalization cut at 35, 45 and 55 days (Factor B) with three repetitions and with a total of 36 experimental units, compared with a control treatment , which were distributed in a completely Random Block Design (DBCA) under a bifactorial arrangement, giving as result, the effect on the yielf of the pasture where the best result was obtained in the treatment of 4 l/ha. biol ha at 35 days with a green forage production of 25.96 (t/FV/Ha/cut) and a dry matter production of 3.54 (t/DM/ha/cut); furthermore, the proximal análisis reported the best values of Medicago sativa at 35 days of cut where a value of 21.81% protein was obtained with a crude fiber of 26.48% applying 6 l/ha of biol based on bovine manure. In the chemical and microbiological composition of the biol it presented a pH: 5.45, NT: <0.3; P2O5: <0.55 and K2O; < 0.33%. also presented bacteria such as Bacillus s.p. and Lactobacillus s.p., in addition to the existence of the yeast Sacharomyces s.p. The best cost benefit was obtained by applying 4 l/ha of biol, presenting a benefit/cost of 1.57 ($), it is recomended to reduce the use of chemical fertilizers by substituting organic fertilizers such as biol, bochashi, compost, among others., in this way this process will contribute to get a friendly production with the enviroment.