TY - JOUR AU - Quintín L., Carlos AU - Montoya S., Juan Carlos AU - Paz N., Iván Enrique PY - 2015/12/31 Y2 - 2024/03/28 TI - Release of CO2 into the atmosphere by rhizosphere activity of different crops in the coffee-growing region of the department of Cauca JF - Revista de Ciencias Agrícolas JA - rcia VL - 32 IS - 2 SE - Research Article DO - 10.22267/rcia.153202.14 UR - https://revistas.udenar.edu.co/index.php/rfacia/article/view/2644 SP - 68-76 AB - <p>Quantifying crop-derived CO<sub>2</sub> emissions allows an accurate insight into the contribution of agriculture to these emissions. This research sought to establish the amount of CO<sub>2</sub> emissions and microbial biomass behavior in crop managements of coffee Coffea arabica L., cassava M. esculenta, beans P. vulgaris, and lettuce L. sativa, in order to determine which crop caused the highest CO<sub>2</sub> emissions depending on management type, technified or traditional. CO<sub>2</sub> field emissions were measured according to the method proposed, biomass was measured using an estimation method (microbial biomass), based on microbial carbon, and a method of fumigation-extraction. Coffee showed the highest CO<sub>2</sub> emissions. Crop management type did not affect CO<sub>2</sub> emissions. Furthermore, climate conditions affected respiration rates among crops, indicating that coffee had higher respiration rates during rainy periods compared to the other crops.</p> ER -