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Fitorremediação do cobre em vinhedos: efeito do fungo micorrízico arbuscular, minhocas e vermicomposto
(Universidade Federal de Santa Maria, 2018-07-16)
The high copper level in sandy soils of the Campanha Gaúcha, resulting from the successive copper-based fungicides application, lead to environmental contamination and toxicity in cover crops and young vines. The ...
Efluxo de metano relacionado com ácidos orgânicos no solo e carbono de exsudados radiculares no cultivo do arroz irrigado
(Universidade Federal de Santa Maria, 2018-07-20)
In worldwide greenhouse gases generation (GHGs) agriculture is one of the principal activities. In Brazil, as a reflection of the importance agriculture in economy, it is estimated that 75% of emissions of carbon dioxide ...
Interação entre remoção de palha e adubação nitrogenada sobre a volatilização de NH3 e emissão de N2O na cultura da cana-de-açúcar
(Universidade Federal de Santa Maria, 2018-07-27)
Brazil has an area of 8.74 million hectares cultivated with sugarcane. Currently, 90% of this
area is mechanically harvested without fire which results in large amounts of straw (7 to 25 Mg
DM ha-1) remaining on the soil ...
Plantas de cobertura do solo e videiras: toxidez, fitorremediação e mecanismos de tolerância ao excesso de cobre
(Universidade Federal de Santa Maria, 2018-06-28)
The application of copper fungicides for the management of foliar diseases in grapevines (Vitis vinifera) increases copper (Cu) content in vineyard soils. This has been diagnosed in several traditional grape growing regions ...
Uso de bibliotecas espectrais para a predição do carbono orgânico do solo
(Universidade Federal de Santa Maria, 2018-05-21)
This study demonstrates the use of diffuse reflectance spectroscopy (DRS) applied to soil organic carbon (SOC) prediction. The scope of the study is related to the increase in the demand for soil information to support ...
Atributos físicos de um latossolo, sistema radicular e produtividade da soja sob tráfego controlado em plantio direto no sul do Brasil
(Universidade Federal de Santa Maria, 2018-09-24)
Soil compaction occurs due to the disorderly passages of machines verified in traditional traffic. Matching traffic lines, working width and gauge of agricultural machinery allow the adoption of controlled traffic farming. ...
Gradiente vertical de decomposição e dinâmica da água no mulch de cana-de-açúcar afetados pela quantidade de palha
(Universidade Federal de Santa Maria, 2018-07-30)
The partial removal of sugarcane straw (Saccharum spp. L.) from the soil surface after mechanized harvesting for the production of cellulosic ethanol leaves different mulch thicknesses at the soil surface. Thus, the need ...
Mineralogia da fração argila de um argissolo submetido ao sistema de plantio direto por vinte e quatro anos
(Universidade Federal de Santa Maria, 2018-03-27)
In the last decades, it has been more intensive the development and improvement of
techniques which aim to provide the sustainability of productive farming systems, while
increasing their yields. In this scenario, is ...
Propriedades reológicas de solos afetadas pela matéria orgânica, área superficial específica e salinidade
(Universidade Federal de Santa Maria, 2018-08-31)
Soil structure consists of the geometric arrangement of particles in aggregates. It is a dynamic property and (especially) together with texture influences several soil physical processes. For aggregation and structure ...
Mineralogia e matéria orgânica de terra preta arqueológica e solos adjacentes não antrópicos na região do Apuí Amazonas
(Universidade Federal de Santa Maria, 2018-02-27)
The Brazilian Amazon presents in most of its extension, highly weathered, acid and low fertility natural soils. However, from the years of 1870 and 1871, the first reports about the Amazonian anthropic soils, known as ...