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Ítem Productividad y tamaño de grano en el cultivo de la quinua bajo la aplicación de fertilizantes biológicos, orgánicos y de síntesis química en el municipio de Silvia, Cauca, Colombia(Universidad Icesi, 2024-12-01) Duque Hoyos, Natalia Andrea; Ortiz González, Daniel FernandoQuinoa cultivation has gained importance in recent years due to its agronomic and nutritional benefits; however, there is a challenge to explore sustainable alternatives for fertilization. The objective of this research was to evaluate the yield and grain size of this crop in the municipality of Silvia, Cauca, under different combinations of fertilizers: biological (3.7 L.ha-1 of ACF-SR®), organic (1 t.ha-1 of compost), chemical edaphic (90-60-52 kg.ha-1 of NPK), and chemical foliar (1.5 L.ha-1 of Agrimins completo®), which resulted in seven treatments: T1: Control, T2: Edaphic chemical fertilizer, T3: Foliar chemical fertilizer, T4: Biological fertilizer, T5: Biological fertilizer + Organic fertilizer, T6: Biological fertilizer + Chemical fertilizer, and T7: Biological fertilizer + Edaphic chemical fertilizer + Organic fertilizer. A randomized complete block experimental design was used, and data analysis was performed through a one-way ANOVA with a significance value of 0.05. The findings of this study indicated that the exclusive application of biological or synthetic chemical fertilizers improves the quality and production of quinoa, and their choice of use depends on the production approach. However, the best results were obtained when an integrated fertilization was implemented, which included the simultaneous application of the three types of fertilizers (T7), achieving the highest yield of 4.17 t.ha-1 and the highest percentage of large grain with 57% of the harvest, which were 4.2 and 3.6 times greater in relation to the control.Ítem El hidrogeno verde, la biomasa, el rio y el transporte fluvial(Universidad Icesi, 2024-12-21) Cujar Coutin, Mario; Marin Jaramillo, AlfredoLa cuenca del rio Atrato, es una región rica en recursos naturales como la biomasa virgen y residual presentes en la cuenca del rio Atrato (Maleza acuática como el jacinto de agua, lodos de PTAR, residuos forestales y agrícolas. (Anexo 1, tipos de biomasa y potencial energético) y con uno de los mayores potenciales hídricos del país que la hacen una fuente de energía renovable para la producción de hidrogeno verde, enfrenta serios desafíos ambientales y sociales debido a la minería ilegal y al conflicto armado, este proyecto propone la producción de hidrogeno verde a partir de la biomasa que se genera en la región y se está desperdiciando, aprovechando también el potencial hidroenergético del rio Atrato y sus afluentes.