Respuesta productiva y nutricional del pasto Dallis (Brachiaria decumbens) con el uso de dos fertilizantes en un sistema silvopastoril

Abstract

In the pastures of La Belleza parish, the limited soil quality was represented as the central problem. The general objective of the research was to compare the productive and nutritional response of Dallis grass (Brachiaria decumbens) using two fertilizers in a silvopastoral system. The experiment was carried out in the fields of three producers of the Association 11 de Abril, with climatic conditions of 2800 mm of annual precipitation, mean annual temperature of 26.19 °C and relative humidity above 80%. During 45 days, measurements were made of experimental variables of the pasture, including plant height, number of tillers, basal cover, forage production, leaf-to-stem ratio, residual forage, chemical composition of the pasture, soil macro and micronutrients, animal weights, sampling for laboratory analysis, data processing and analysis. The experiment consisted of three experimental units with an area of 10,000 m2 each. Three treatments were used: fixed fence (T1), mobile fence (T2), and control without division (T3). The research was based on inductive deductive theoretical methods and experimental analysis. Soil analyses for macro and micronutrients were performed, as well as bromatological analysis of Dallis forage. A completely randomized block design (CSBD) with randomized distribution in three blocks and four treatments was used. Results indicated highly significant differences in plant canopy height among treatments. The control treatment showed 10% more plant height compared to the fertilization strategies evaluated. However, no significant differences were observed between these strategies. In conclusion, no marked differences in agronomic characteristics were evident when evaluating different fertilization strategies for Brachiaria decumbens grass.