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Qualidade da água e sua relação com o uso da terra em duas pequenas bacias hidrográficas
(Universidade Federal de Santa Maria, 2011-02-25)
The creation of rural settlements in areas of agrarian reform has been allowing greater social inclusion for families who were previously deprived of land ownership and subsequent income source. However, unorganized splitting ...
Modelagem da curva de compressão e da pressão de preconsolidação do solo
(Universidade Federal de Santa Maria, 2012-08-24)
The preconsolidation pressure (σp) is obtained from the curve of the soil compression visual graphical form, mathematical or associating both and is an estimate of its load-bearing capacity. In order to remove the subjectivity ...
Formas de alumínio em solo submetido a diferentes manejos e rotações de culturas
(Universidade Federal de Santa Maria, 2012-09-28)
The use of different tillage systems and winter crop plants over a long period of time on a clayed and naturally acid soil can promote changes in the forms of aluminum present in the soil, reducing the possibility of its ...
Dicianodiamida (DCD) como inibidor da nitrificação do nitrogênio amoniacal de dejetos líquidos de suínos no solo
(Universidade Federal de Santa Maria, 2010-06-30)
Inhibition of nitrification of ammonia nitrogen (N) from pig slurry in soil after application can mitigate N losses by denitrification and leaching of nitrate (NO3-), with
economic and environmental benefits. However, ...
Matéria orgânica de um argissolo vermelho distrófico úmbrico após a introdução de fitofisionomias antrópicas
(Universidade Federal de Santa Maria, 2011-05-04)
In the state of Rio Grande do Sul the expansion of forestry has been one of the major
agents of landscape change, occupying land previously intended for livestock farming
and agriculture with low technical level, in areas ...
Modelagem da produção de sedimentos em bacia hidrográfica rural sob diferentes equações de eficiência de desagregação do modelo erosivo LISEM
(Universidade Federal de Santa Maria, 2017-10-31)
The Limburg Soil Erosion Model (LISEM) erosion prediction model is an environmental planning and
diagnostic tool that, through the simulation of the processes of sediment detachment, transport and
deposition provided by ...
Nitrato e amônio na solução do solo em sistemas com uso de plantas de cobertura
(Universidade Federal de Santa Maria, 2019-02-27)
The introduction of cover crops in agricultural production systems has received attention due its ability to improve the multifunctionality of the soil and for many species have the capacity of biological N fixation. After ...
Biodiversidade de bactérias fixadoras de nitrogênio em área de mineração de carvão
(Universidade Federal de Santa Maria, 2014-02-19)
Coal is a fossil fuel extracted from underground by mining processes with the greatest availability in the world. In the state of Rio Grande do Sul, Brazil, the main source is the Candiota Mine with reserves of a billion ...
Espectroscopia no infravermelho próximo para estimativa dos teores de argila e de matéria orgânica em amostras de solo
(Universidade Federal de Santa Maria, 2019-07-19)
Among the constituents of the soil, special attention is given to soil clay and soil organic matter (SOM), since, among other aspects, they are determinant for nutrient retention and for the formation of aggregates, which ...
Avaliação do crescimento inicial de oliveira "Arbequina" em diferentes manejos do solo e dosagens de fósforo
(Universidade Federal de Santa Maria, 2011-02-18)
In the global context, Brazil ranks among the largest importers of olive products, not having a significant agricultural production to meet domestic market. The olive tree, a tree species considered to longevity also helps ...