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Itens para a visualização no momento 61-70 of 142
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. ...
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 ...
Efeitos da geada em canola (Brassica napus L.) em função da distribuição da palha na superfície do solo
(Universidade Federal de Santa Maria, 2015-02-27)
Canola is a winter crop that has good adaptability to low air temperature, but depending on environmental conditions and developmental stage the occurrence of frosts can cause significant damage to the crop. However, few ...
Transpiração e crescimento foliar de genótipos de batata em função da fração de água transpirável no solo
(Universidade Federal de Santa Maria, 2012-02-28)
The objective of this study was to determine the response of transpiration and leaf growth to
the fraction of transpirable soil water (FTSW), in three clones (SMINIA 02106-11, SMINIA
00017-6 and SMINIA 793101-3) of Potato ...
Eficiência da aplicação de insumos a taxa variável na correção do solo e uniformização da produtividade da cultura da soja através de mapas de agricultura de precisão
(Universidade Federal de Santa Maria, 2013-08-30)
The use of tools and techniques of precision agriculture by farmers is not a new in
the field, because their uses are increasing year after year. Among them have been
highlighted soil samples using the handheld GPS and ...
Modelo de referência para o processo de desenvolvimento de máquinas agrícolas para empresas de pequeno e médio porte
(Universidade Federal de Santa Maria, 2014-02-27)
The expansion of agricultural machinery and equipment sector, increase the
competition among manufacturers and forcing the development of more complex
products and greater efficiency in production processes. This reality ...
Análise númerica de risco de ocorrência das manchas de alternária e septória em girassol para diferentes datas de semeadura, em Santa Maria - RS
(Universidade Federal de Santa Maria, 2014-01-24)
Sunflower is an alternative specie to the system of no-tillage and crop rotation. His inclusion
in this system provides soil improvements and interruption on cycle of pests and diseases,
which are responsible for losses ...
Desempenho de protótipos de disco para distribuição de ureia a lanço
(Universidade Federal de Santa Maria, 2013-08-26)
The correct use and distribution of correctives and fertilizers on growth areas, setting right the soil or returning the nutrients exported by the crops, is one of the most important techniques to increase and maintain the ...
Desempenho e emissões de um motor de trator agrícola operando com misturas de óleo diesel e etanol
(Universidade Federal de Santa Maria, 2015-03-05)
The growing demand of energy in the world, the decrease of petroleum reserves and
the current problems of environmental contamination, increase the interest in
renewable energy study for internal combustion engines, to ...