Atributos microbiológicos do solo em sistema plantio direto com e sem terraceamento

Abstract

Soil water erosion is one of the main processes responsible for the degradation of agricultural systems, causing losses of soil, water, organic matter, and nutrients, while also compromising crop productivity and environmental sustainability. Among the conservation practices adopted to mitigate this problem, terracing stands out for reducing surface runoff velocity and promoting water infiltration into the soil. These changes may directly influence the biological attributes of the soil, particularly microbial activity and microbial biomass. In this context, the present study aimed to evaluate the microbiological attributes of soil under a No-Tillage System with and without terracing by analyzing parameters such as basal soil respiration, microbial biomass carbon, and microbial biomass nitrogen. The research involved collecting soil samples from areas under different management systems, followed by laboratory analyses to determine microbiological attributes. The results demonstrated that the adoption of terracing, in addition to contributing to water erosion control, promotes changes in soil microbiological activity, influencing its biological quality and its capacity to maintain ecological processes. The study contributed to a better understanding of the relationships between conservation practices, erosion control, and soil quality, providing support for the development of more sustainable agricultural systems.