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Redistribuição de sedimentos em encostas por meio do C total e do isótopo 13C
(Universidade Federal de Santa Maria, 2017-07-17)
High intensity of rains, associated with inadequate management in agricultural areas, have been caused loss of large volumes of soil by erosion, leading the sediments and nutrients to the hydric sources. The loss of sediments ...
Modelagem matemática do escoamento superficial na escala de encosta sob plantio direto
(Universidade Federal de Santa Maria, 2017-02-24)
The runoff generation over fields with no-tillage agriculture management remains being a problem with environment, social and economic impacts. The purpose of this research was evaluate the capacity of a physic based and ...
Formas de aplicação e tipos de corretivo da acidez do solo: alterações nos atributos químicos em profundidade em longo prazo
(Universidade Federal de Santa Maria, 2017-07-21)
The main interest of the soils acidity correction is to neutralize the exchangeable Al3+, since
the presence of this form of Al in the soil causes restriction of root growth and consequently
the decrease of the productivity ...
Indicadores da qualidade do solo em função do uso da terra
(Universidade Federal de Santa Maria, 2017-03-31)
Land-use change (LUC) or land use has been largely responsible for a large part of carbon dioxide emissions and soil degradation. The increased demand for bioenergy has led to the expansion of sugarcane areas in the ...