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Itens para a visualização no momento 131-140 of 142
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 ...
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 ...
Avaliação do desempenho de diferentes métodos de análise de estabilidade de taludes em barragens de terra
(Universidade Federal de Santa Maria, 2013-02-20)
The diversity of sizes and uses of dams and embankments, in Brazil, is reflected, in terms of these structures, too. Some are impeccably designed, meeting safety standards consistent with national and international standards ...
Respostas fisiológicas e morfológicas de plantas de mandioca submetidas a um e dois ciclos de secamento do solo
(Universidade Federal de Santa Maria, 2013-02-25)
The occurrence of short droughts, during the growing season of cassava in Rio Grande do Sul, may cause several soil drying cycles which induce physiological disorders in plants, affecting cassava productivity in the state. ...