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Metais pesados em solo e plantas em área com longo histórico de aplicações de fontes orgânicas e mineral de nutrientes
(Universidade Federal de Santa Maria, 2014-02-20)
The application of organic and mineral fertilizers in agricultural areas, especially, in no-till system
and over the years, can promote increased levels of heavy metals and as arsenic (As), cadmium
(Cd), lead (Pb), chromium ...
Impacto dos subprodutos da industrialização do xisto sobre atributos biológicos do solo
(Universidade Federal de Santa Maria, 2011-03-31)
The impact of using oil shale byproducts in soil on biological activity is an aspect still little
known. The aim of this work was to evaluate the oil shale byproducts impact on soil
biological attributes. In 2010, experiments ...
Impacto do uso da terra nos atributos químicos e físicos de solos de rebordo do planalto - RS
(Universidade Federal de Santa Maria, 2008-02-29)
Changes in land use can take into soil chemical and physical quality degradation. In the hillside areas
of the Rio Grande do Sul State (RS) land degradation vulnerability is elevated, due to the combination
of a strong ...
Recuperação do potássio adicionado em solos com diferentes teores e o efeito na disponibilidade às plantas
(Universidade Federal de Santa Maria, 2012-05-30)
The sustainability of production is widespread and discussed within the productive systems, resource utilization of the productive chain of the agricultural sector, mainly inputs, requires constant evaluations, since their ...
Mudança do uso da terra e tipo de solo são fatores determinantes de fungos e arqueas no bioma pampa
(Universidade Federal de Santa Maria, 2012-02-29)
Land-use change and soil type can have significant impact on microbial communities of soil.
The Pampa biome in recent decades has undergone severe changes in landscape due to landuse
change, mainly for the introduction of ...
Dinâmica do nitrogênio mineral e produtividade do arroz irrigado na sucessão soja-azevém em solo de várzea
(Universidade Federal de Santa Maria, 2011-08-31)
The current recommendation of nitrogen fertilizer for irrigated rice (Oryza sativa) depends
on the content of soil organic matter and expectation of response to N application; it can be
influenced by previous crops. This ...
Liberação de potássio e alteração mineralógica em argissolos subtropicais
(Universidade Federal de Santa Maria, 2014-02-24)
The potassium (K) of a given soil depends primarily on its parent material. The K in the soil can be conceptually divided into: structural K, non-exchangeable K, exchangeable K, and K in the solution. Studies have shown ...
Efeito residual de intervenções mecânicas para descompactação do solo manejado sob sistema plantio direto
(Universidade Federal de Santa Maria, 2011-03-03)
The compaction became one of the main causes for soil degradation in agricultural areas, being directly related to the soil management system adopted. This situation can be observed in the Brazil humid subtropical climate ...
Decomposição de resíduos culturais de plantas de cobertura de solo e emissões de óxido nitroso
(Universidade Federal de Santa Maria, 2012-02-28)
The inclusion of summer cover crops (SCC) in the no-till system is an interesting alternative to promote the addition of elevated quantities of plant biomass and nitrogen (N) to the soil. The C and N dynamics during the ...
Resposta de genótipos de cana-de-açucar à inoculação de bactérias diazotróficas no Rio Grande do Sul
(Universidade Federal de Santa Maria, 2011-07-28)
In southern Brazil is unknown the effect of diazotrophs inoculation in sugarcane
(Saccharum officinarum). The evaluation of this practice and the selection of genotypes with
high potential for biological N fixation (BNF) ...