CE:11915 CF: cag024162094


Evaluation of biological attributes of soil type latossol under agroecological production

Evaluación de atributos biológicos de un suelo latosol bajo producción agroecológica


Marisol Rivero Herrada1, Ramiro Remigio Gaibor Fernández1, Wilson Mozena Leandro2, Enderson Petrônio de Brito Ferreira3, Tatiana Maris Ferraresi3, Juan José Reyes Pérez4

1 Universidad Técnica Estatal de Quevedo, Campus Ing. Manuel Haz Álvarez, Km 1,5 vía a Santo Domingo de los Tsáchilas, Quevedo, Ecuador. CP 120554.
2 Universidad Federal de Goiás. Rodovía Goiana. Nova Veneza, Km zero - Caixa Postal 131. Campus Samambia, Brasil.
3 Empresa Brasileira de Pesquiza Agropecuaria, Santo Antonio de Goias, Brasil.
4 Universidad Técnica de Cotopaxi, Extensión La Maná. Av. Los Almendros y Pujilí, Sector La Virgen. Edificio Universitario, La Maná, Ecuador. CP 050202.

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Biological soil attributes have shown to be good indicators of soil changes as a result of the management function. The aim of this study was to evaluate the effect of using cover crops, as well as planting and tillage systems on the biological attributes of a yellowish red latosol soil. Soil samples were taken at 0 to 0.10 m depth, seven days before the bean harvest. Microbial biomass carbon and nitrogen, basal soil respiration, metabolic ratio and total enzyme activity were evaluated in this study. The best agroecological management was achieved under the association of the ground cover with millet and in direct seeding because they showed higher soil microbial biomass carbon and nitrogen content and lower metabolic quotient, being pork bean the best plant coverage. All biological soil attributes were sensitive to the tillage system, which showed the best results of the total enzyme activity and of the soil metabolic quotient which resulted to be the most efficient.

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