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Impacts of different coffee systems on soil microbial populations at different altitudes in Villavicencio (Colombia)

Colmenares P., Carlos Hernando and Silva P., Amanda and Mogollón O., Ángela María (2016) Impacts of different coffee systems on soil microbial populations at different altitudes in Villavicencio (Colombia). Agronomía Colombiana, 34 (2). pp. 285-291. ISSN 2357-3732

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Resumen

Coffee in Colombia has favorable characteristics for agroforestry practices; farmers traditionally grow coffee under various types of organic coffee systems, mainly dominated by associated systems coffee with shade leguminous tree species, making it one of the essential ecosystems for microorganisms life. This research was developed in the coffee region of Puente Abadia, Villavicencio, Colombia; the objective was to evaluate the heterotrophic aerobic microbial population in Cof fea arabica var. Castilla of bacteria (BP), fungi (FP) and actinomycetes (AP), due to the combined effect of three factors. Factor A was related to two bioclimates zones: Low altitude zone <700 m a.s.l. (Z1) and high altitude zone >700 m a.s.l. (Z2); factor B corresponded to two coffee systems: coffee monoculture system (unshaded) (S1), associated coffee system (shaded) (S2) and control treatment of fruit monoculture system (S3). On the other hand, factor C referred to two sampling depth, corresponding to a 0-20 cm depth (D1) and 20-30 cm depth (D2). Significant differences (P≤0.05) between the Z2*S2*D2 factor interaction caused the highest (BP) and (AP); (AP) also was positively inf luenced by the Z2*S2*D1, Z1*S2*D2 and Z1*S2*D1 interactions (P≤0.05). The (FP) was affected positively by the Z1*S2*D2 and Z1*S2*D1 interactions. The (S2) (shade) had comparative advantages for the soil microbial population, as compared with (S1) and (S3).

Tipo de documento:Artículo - Article
Palabras clave:Actinomycete, bacteria, Coffea arabica L, fungi, soil quality, soil diversity
Temática:5 Ciencias naturales y matemáticas / Science > 57 Ciencias de la vida; Biología / Life sciences; biology
5 Ciencias naturales y matemáticas / Science > 58 Plantas / Plants
Unidad administrativa:Revistas electrónicas UN > Agronomía Colombiana
Código ID:55344
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :19 Dec 2016 15:19
Ultima modificación:23 Junio 2017 20:42
Ultima modificación:23 Junio 2017 20:42
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