Evaluación con diferentes niveles de fertilización orgánica en la producción primaria forrajera de gramalote (Axonopus scoparius).

Abstract

This research had as an aim the evaluation of different levels of organic fertilization in the primary forage production of gramalote (Axonopus scoparius). It was carried out in the Santa Rosa Parish of Morona Santiago Province. For the experimental work, the research was constituted by 20 plots of Gramalote, whose dimensions were of 20 m2 (5 x 4 meters in net useful plot), each experimental unit, was conformed by five repetitions with a surface of 80 m2 and for each treatment having a total of 400 m2. A completely randomized block design was applied using 3 levels of organic fertilizer biol which were 100, 150 and 200 l/ha versus a control treatment. The statistical techniques were Analysis of Variance, Separation of Means according to Tukey (P < 0.01 and P < 0.05) and Regression Analysis and multiple correlation for variables that present significance (P < 0.01 and P < 0.05). According to the results, the grass presented the greatest height (0.86 cm) PDFV (75.40 Kg/ha) when using 150 l/ha of fertilizer, while when fertilizing with 100 l/ha, the greatest aerial coverage (77.60%) and the shortest fertilization time (2 hours 08 seconds) were obtained. In the bromatological analysis, it was determined that when using 150 l/ha of biol, the highest values of fat (0.39%), fiber (4.07%) and E.L.N.N. (7.46%) were obtained, while with 200 l/ha of biol, protein and ash contents of 10.11 and 2.04% were obtained. The economic analysis indicated that with the application of 150lt/ha of organic fertilizer a profitability of $ 0.56 was achieved. It is concluded that the application of 150lt/ha of organic fertilizer improves the productive and economic performance of the gramalote. It is recommended to promote the application of this fertilizer in similar pastures, in the different areas surrounding the experimental site.