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Simulação do rendimento de grão de arroz irrigado em cenários de mudança climática
(Universidade Federal de Santa Maria, 2010-02-18)
Climate change projections indicate that current atmospheric CO2 concentrations (380 ppmv) will double by the end of this century, which may lead to an increase in crop yield due to an increase in photosynthesis. However, ...
Síntese e aplicação de nanofiltro contendo nanotubos de carbono na retenção de contaminantes em água
(Universidade Federal de Santa Maria, 2015-06-05)
This work aimed to use Multiple Walls Nanotubes (MWNT) in order to synthesize a nanofilter to remove water contaminants and to test the nanofilter manufactured in removing Benzothiophene and pesticides present in water. ...
Freqüências de irrigação para Eucalyptus grandis e Pinus elliottii em viveiro
(Universidade Federal de Santa Maria, 2007-08-08)
This study had as object to evaluate the irrigation management influences in Pinus elliottii Engelm. and Eucalyptus grandis W. Hill ex Maiden. seedlings, according to its deficiencies, keeping the germination and development ...
Misturas de biodiesel de soja, com aditivação e variação do ponto de avanço, em um motor de injeção direta
(Universidade Federal de Santa Maria, 2010-08-09)
The diesel fuel is used widely in the country and the world. Moreover, growing environmental awareness leads to a larger demand for renewable energy resources. The pioneering in the use of ethanol makes Brazil also bears ...
Condições de uso de pulverizadores e tratores na Região Central do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2012-03-01)
Brazil is one of the largest consumer of pesticides in the world, and to make these
products reach the desired biological target are used different types of machines. In
grain crops, the usual is the agricultural sprayers. ...
Efeito da variação da regulagem no perfil transversal de aplicação com distribuidores centrífugos
(Universidade Federal de Santa Maria, 2005-08-26)
Centrifugal broadcaster spreaders are equipments that revolutionized the application technology application of solid material in agriculture, for presenting a great field
capacity for operational field and being able to ...
Efeito de diferentes estratégias de irrigação sob a cultura da soja (Glycine max (L.) Merril) na região de Santiago, RS
(Universidade Federal de Santa Maria, 2007-02-16)
Among the different production s factors, water is what most limits the productivity of the cultivated plants, especially in regions where the irregular distribution of pluvial precipitation
is present. In these cases, ...
Efeito de diferentes níveis de irrigação na produtividade e ocorrência de requeima na cultura da batata
(Universidade Federal de Santa Maria, 2007-02-22)
Potato is grown in Central Rio Grande do Sul State mainly by small farmers, which use weekly sprayings with fungicides, without taking into account if meteorological conditions
favor or not Late Blight and other pathogens. ...
Exposição humana à vibrações de corpo inteiro em um trator agrícola em operação de semeadura
(Universidade Federal de Santa Maria, 2012-12-19)
Exposure to high levels of vibration can cause irreversible problems of muscle
order, osseous, sensorial, vision, and others. The high work that agricultural
operators facing day-by-day and characteristics of agricultural ...
Épocas de menor risco de estresse hídrico e térmico para o feijoeiro na região central do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2005-01-27)
The common bean is the main food of many Brazilians and it is produced in the whole national territory, wich means that this spcies cultivated in variety of meteorological conditions. In spite of its great importance, the ...