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All publications of “Adriana Ferreira Martins”

3 results

Physical, Chemical, and Microbiological Properties of Soil under Different Plant Covers in the Seridó Desertification Region in the Brazilian Semiarid

Adriana Ferreira Martins, Ignácio Hernan Salcedo, Flávio Pereira de Oliveira ORCID logo , Walter Esfrain Pereira

08/Mar/2019

ABSTRACT The Seridó Desertification Region is a result of inadequate management of the native Caatinga vegetation, which generated degraded areas with little or no capacity for plant production. The area has experienced a succession of different land uses, but little is known about the impact of these changes. The present study tested the hypothesis that the intense degradation of the Caatinga drastically decreased vegetal biomass production, which favored direct soil exposure and resulted in a lower abundance and diversity of […]

Microbial indicators of soil quality in different management systems

Bruno Brito Lisboa, Luciano Kayser Vargas, Andressa Oliveira da Silveira, Adriana Ferreira Martins, Pedro Alberto Selbach

01/Feb/2012

Agricultural activity, by the application of different soil management practices, can cause impacts on soil production capacity that need to be assessed. In this study, different microbiological parameters were evaluated, to assess the relation of soil quality with different tillage practices and crop systems, in comparison to a natural reference soil. The activities of β-glucosidase, urease, acid phosphatase and arylsulphatase were evaluated, as well as soil microbial respiratory activity and microbial biomass. Conventional tillage (CT) and no-tillage (NT) were evaluated […]

Genetic diversity, tolerance to acidity factors and symbiotic efficiency of rhizobia of birdsfoot trefoil in soils of Rio Grande do Sul

Adriana Ferreira Martins, Luciano Kayser Vargas, Bruno Brito Lisboa, Jamilla Alves Trindade Sampaio, João Henrique Beltrame de Araújo, Ariane Torres Turcatel, [...]

01/Dec/2011

Birdsfoot trefoil is a perennial winter-spring forage legume, highly important in Rio Grande do Sul, in the south of Brazil. It stands out for the ability to survive in relatively acidic and nutrient-poor soils. This study aimed to select birdsfoot trefoil rhizobial strains with tolerance to acidity and aluminum toxicity and efficiency in nitrogen fixation in nutrient-poor soils. Fifty-two isolates of Lotus spp rhizobia from soils of five locations in the state of Rio Grande do Sul were evaluated. The […]