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Itens para a visualização no momento 31-40 of 158
Seleção de plantas para fitorremediação de solo contaminado com cobre
(Universidade Federal de Santa Maria, 2013-02-27)
Successive applications of Bordeaux syrup, a copper fungicide widely used to control diseases on the vine, contributed to the increase in copper in large areas of vineyards in the Serra Gaúcha. Phytoremediation is a soil ...
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 ...
Disponibilidade e transferência de nitrogênio, fosforo e potássio em um argissolo submetido à aplicação de fontes de nutrientes
(Universidade Federal de Santa Maria, 2012-02-29)
The swine and cattle activities are of great economic and social importance in Brazil in the
southern region, but generate of large volumes of waste, that when applied to the soil can be
mineralized and part of the nutrients ...
Predição da mineralização de nitrogênio pelo método Direct Steam Distillation (DSD) em solos aptos ao cultivo de arroz irrigado
(Universidade Federal de Santa Maria, 2015-02-25)
Nitrogen (N) fertilization management in the states of Rio Grande do Sul (RS) and Santa Catarina (SC), Brazil, is performed using interpretation tables of soil organic matter (SOM) in which we obtain the interpretation ...
Determinação da acidez potencial de solos pela titulação direta
(Universidade Federal de Santa Maria, 2015-04-23)
The calibration of the solution SMP or the solution TSM for their use to estimate the soil potential acidity (H+Al) uses the direct soil titration by incubation with calcium carbonate for a period of 180 days, which makes ...
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 ...
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 ...