Volume 45, 2021

Biogenic and physicogenic aggregates: formation pathways, assessment techniques, and influence on soil properties

Marcos Gervasio Pereira ORCID logo , Arcangelo Loss ORCID logo , Itaynara Batista ORCID logo , Thadeu Rodrigues de Melo ORCID logo , Eduardo Carvalho da Silva Neto ORCID logo , Luiz Alberto da Silva Rodrigues Pinto ORCID logo

24/Nov/2021

ABSTRACT: The soil particles can be gathered through physical and/or chemical processes in association with the biological activity, leading to the formation of aggregates. Soil aggregates has several functions in the soil, increasing macroporosity and water circulation – consequently reducing soil erosion and mechanical resistance to root growth, contributing to greater fixation of plants to the soil and absorption of water and nutrients, and protection of intra-aggregate organic matter. The aggregates were initially classified morphologically and in terms of their […]

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Contribution of enzymes to soil quality and the evolution of research in Brazil

Lisiane Sobucki ORCID logo , Rodrigo Ferraz Ramos ORCID logo , Leonardo Arocha Meireles ORCID logo , Zaida Inês Antoniolli ORCID logo , Rodrigo Josemar Seminoti Jacques ORCID logo

30/Nov/2021

ABSTRACT Extracellular soil enzymes are fundamental for the functioning of ecosystems. Several processes in the soil depend on the activity of these enzymes, including plant decomposition, soil organic matter formation/mineralization, and nutrient cycling. Moreover, extracellular enzyme activity occurs in the soil and is therefore influenced by environmental factors. Due to the high sensitivity to these factors, extracellular enzymes are used for monitoring soil quality. This review aimed to present the main contributions of soil enzymes to agriculture, emphasizing the dynamics […]

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