Comparación de la población de collémbolos (hexápoda familias entomobrylidea e isotomidae) y su función en tres sistemas de manejo agronómico de café, municipio del líbano – Colombia

The arthropod individuals were collected, coded and identified using the Berlese funnel methodology,found in 45 samples (1 kilogram) of three farms, under coffee cultivation, planted inan organic, conventional and mixed system, in the municipality of Lebanon (Tolima, Colombia)during 2014. It was obtained that the arthropods of the soil of the conventional farm (Type I)has a higher index of diversity than the organic farm and this last higher index than the mixedfarm. In spite of this, the organic farm presents a greater population of arthropods that duplicatethe populations of the conventional one and quintuplicate those of the mixed farm. From thisanalysis of arthropods, it is found that individuals of Phyllum Hexapoda, class collembola andFamilies Entomobrylidae and Isotomidae present significant population differences betweenthe Organic farm (153 and 138 individuals respectively) mixed farm (119 and 92 respectively)and the conventional one ( 87 and 16 respectively). When analyzing the organic matter contentof each of the farms, we have percentages of 18.5 organic, 11.4 Mixed farm and 4.25 conventionalfarm, which is related to the role of the colembolos in the transformation of particles anddecomposition of organic waste.