Publicación: Efecto del lombricopost en la calidad nutricional del ensilaje de tres híbridos de girasol (Helianthus annuus l.) en condiciones agroclimáticas del municipio de Montería-Córdoba Colombia
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Resumen en inglés
The objective of this research was to evaluate the effect of vermicompost on the quality of sunflower silage (H. annuus L.), in three hybrids Verónica, Shaquira and Esbella grown in the medium Sinú-Córdoba. A randomized complete block design of divided plots, with four treatments was used: T1 control, T2 chemical fertilization (Urea-NUTRIMON®), T3 vermicompost fertilization and T4 combined fertilization and three replications. The climatological parameters of the area of influence were monitored during the sunflower crop cycle, such as temperature, precipitation, humidity, solar radiation in the area of the middle Sinú, at the La Victoria de Fedearroz Mocarí weather station in Montería. Yield parameters in wet weight, dry weight percentage and moisture percentage of morphological structures of 12 plants in R6 phase, randomly selected by treatment of the central rows, were determined 13 weeks after sowing. To determine the nutritional value of sunflower silage (crude ash, moisture content, crude protein, ether extract, crude fiber (%)), through proximal analysis, a total of 36 samples (three repetitions) distributed in PVC tubes of 6¨, hermetically sealed, differentiated with the respective treatment and stored at room temperature for a period of 15 months. The treatments with the highest percentage of dry weight and percentage of moisture were treatments T3 and T1 with values of 26.72 and 78.44% respectively, in terms of silage quality, treatment T3 showed the highest averages in the variables crude protein, ethereal extract, crude fiber and in vitro digestibility, with values of 17.89; 13.25; 62.43 and 67.51% respectively. Therefore, we can affirm that the results obtained demonstrated the beneficial effect that the application of vermicompost confers on the species H. annuus L. at the Elevel of protection and yield under the agroecological conditions of the medium SinúCórdoba.