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Itens para a visualização no momento 251-260 of 274
Comportamento da umidade do solo detrminada por métodos expeditos
(Universidade Federal de Santa Maria, 2013-02-18)
The knowledge of soil moisture is quite important because it indicates soil
hydric conditions and it can help on saving water and electric energy, given that
monitoring of soil moisture allows controlled and timely ...
Desempenho de elementos descompactadores para escarificação em sistema de semeadura direta
(Universidade Federal de Santa Maria, 2013-02-25)
The competitiveness of the agricultural production system has led producers to seek ways to enhance their crops and increase their profits. With the reduction of sowing windows and intensification of production systems, ...
Análise do desempenho de uma motobomba de superfície acionada por um motor CA indução tipo shaded pole alimentado por painel fotovoltaico
(Universidade Federal de Santa Maria, 2012-03-29)
The proposed work evaluates the technical viability of a photovoltaic pumping system
and presents the main characteristics of the system application. The pumping system uses a
lead acid battery and a photovoltaic panel. ...
Sistematização de conhecimento para o projeto de plataformas de colheita de feijão
(Universidade Federal de Santa Maria, 2011-09-21)
Due to the need to increase in production and to the high rates of losses in the header because of machines with low efficiency in harvesting, it is presented, in this thesis the knowledge systematization needed to develop ...
Avaliação de motores de tratores agrícolas utilizando dinamômetro móvel
(Universidade Federal de Santa Maria, 2014-02-25)
Tractors are the most used agricultural machines in most mechanized operations in a rural property. This has raised agricultural tractors production and trading. Together with such production raise, questions have also ...
Projeto de um nebulizador autopropelido para aplicação de inseticidas no combate aos mosquitos: fases informacional e conceitual
(Universidade Federal de Santa Maria, 2009-02-27)
There are many diseases transmitted by mosquitoes and, among them,
dengue has been standing out in the last years by the increasing and elevated
numbers of infected people, being considered as one of the principal problems ...
Desempenho de mecanismos de corte dos resíduos culturais e abertura de sulco para a semeadura direta
(Universidade Federal de Santa Maria, 2014-01-31)
The objective of this work was to evaluate the tractor/toolholder operating performance equipped with different configurations of the cutting elements of crop residues and soil breakers, depending on the speed. This was ...
Desempenho em dinamômetro e emissões residuais de um motor de trator agrícola operando com misturas binárias de óleo diesel B5 e biodiesel de óleo de frango
(Universidade Federal de Santa Maria, 2011-02-28)
Brazil, the third largest producer of biodiesel in the world, and also the third largest producer of chicken, may increase in some regions, the use of oil derived from birds, as an alternative to fossil fuels. In order to ...
Relações hídricas e trocas gasosas em plantas de feijão submetidas à irrigação deficitária
(Universidade Federal de Santa Maria, 2012-03-20)
The constant deficiency of available water resources and the society pressure for the rational
water use in agriculture requires the correct management of the irrigation water. When a plant
does not receive the right ...
Sistematização de conhecimento para o projeto o projeto de motor a etanol para aeronave agrícola
(Universidade Federal de Santa Maria, 2011-09-15)
Actually in Brasil there there is a fleet around 1500 agricultural aircraft working on different aplications.
The spray aplication by na airplane of crop defenses is increasing on the last years, generating a
demand on ...