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Solução tampão que mimetiza as características ácido-base do tampão SMP em resposta à acidez de solos brasileiros
(Universidade Federal de Santa Maria, 2011-02-21)
In Brazil, the SMP buffer has been used since the 60's as the main method to estimate
the potential acidity and/or the soil lime requirement. However, SMP contains pnitrophenol
and potassium chromate, substances with high ...
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 ...
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 ...
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 ...
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) ...
Modelagem do escoamento, da produção de sedimentos e da transferência de fósforo em bacia rural no sul do Brasil
(Universidade Federal de Santa Maria, 2011-03-01)
Areas under intensive tobacco crop cultivation have been impacting the water
balance and increasing soil erosion in Southern Brazil. Application of large amounts
of mineral fertilizers, higher than the ...
Planejamento do uso do solo em unidades de produção familiar produtoras de fumo: limites e possibilidades para a superação de conflitos agroambientais
(Universidade Federal de Santa Maria, 2011-07-18)
The occupation of forest ecosystems in mountainous region of the Rio Grande do Sul state occurred with the
establishment of agriculture and livestock at small family production units (FPU). Qualitatively and
quantitatively ...
Zoneamento pedoambiental da erva mate Ilex paraguarensis para o município de Erechim - RS
(Universidade Federal de Santa Maria, 2011-08-31)
The aim of this study is to propose information that can help the pedoenvironmental zoning of
Ilex paraguariensis St. Hil for the county of Erechim, identifying, with the aid of
geoprocessing techniques, the areas with ...
Mapeamento digital de solos: Metodologias para atender a demanda por informação espacial em solos
(Universidade Federal de Santa Maria, 2011-11-07)
Soil has increasingly being recognized as having an important role in ecosystems as
well as for food production and global climate regulation. For this reason, the demand for
relevant and updated information on soil is ...
Potencial fertilizante de adubos orgânicos à base de esterco bovino e sua utilização na produção de mudas de alface
(Universidade Federal de Santa Maria, 2011-07-28)
Agricultural production generates a diversity of organic waste, including manure, which is
often deposited on the soil without adequate treatment, that could damage the environment.
Treatment processes such as composting ...