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Economia de combustível de tratores agrícolas utilizando diferentes transmissões e estratégia de condução
(Universidade Federal de Santa Maria, 2016-08-19)
Due to Diesel oil s mineral origin and marketing price, the consumption of this fuel by a tractor becomes one of the most important aspects at the time of its acquisition and use. Knowledge of the appropriate strategies ...
Estimativa de vazão com dados escassos: novas hipóteses para o método silveira
(Universidade Federal de Santa Maria, 2016-03-18)
The estimates of low flow in ungauged basins with data lacking represent in Brazil an urgent technical demand as a result of the environmental licensing and water rights. These processes are requirements of our legislation ...
Retenção e armazenamento da água da chuva na camada evaporativa do solo com e sem resíduos vegetais
(Universidade Federal de Santa Maria, 2016-08-30)
The water evaporation (Es) is one of the main components of water balance and energy of ground surface. Precise measurements of the Es dynamics require the understanding of water and energy partition on the interface soil ...
Local de aplicação do fósforo, sistema radicular e produtividade da cultura da soja em plantio direto
(Universidade Federal de Santa Maria, 2016-07-07)
Modern agriculture presents constant challenges, among them productive and economical. The target on greater productivity and efficiency in the field leads to improvements of techniques performed today. Before a production ...
Manejo da irrigação e eficiência do uso da água no cultivo do pimentão com e sem sombreamento
(Universidade Federal de Santa Maria, 2016-07-16)
Strategies for managing irrigation can lead to better outcomes, such as performance, quality fruit and efficient use of irrigation water. This study aimed to determine the effect of different supplemental irrigation depth ...
Desenvolvimento e avaliação de mecanismo acondicionador de palha para descompactadores de solo em semeadura direta
(Universidade Federal de Santa Maria, 2016-03-21)
The No-Till System is a management technique and conservation which calls for little soil disturbance, crop rotation and maintenance of vegetation cover on the surface, where the latter is the main one. However, if these ...
Simulação do desenvolvimento, crescimento e produtividade de soja em condições climáticas atuais e futuras para o Rio Grande do Sul
(Universidade Federal de Santa Maria, 2016-02-18)
Soybean is a mainly agricultural world commodity, with United States, Brazil, and Argentina as mainly producers. This thesis had as objectives (i) evaluate the SoySim model to simulate growth, development, and yield of ...
Viabilidade técnica da produção de etanol a partir de farelo de arroz
(Universidade Federal de Santa Maria, 2016-09-30)
Currently there is great concern about the consumption of fossil fuels, as well as a possible depletion
of traditional sources of production of raw materials mainly hydrocarbon derivatives. Parallel
challenges to the ...
Simanihot: um modelo de simulação da cultura da mandioca e sua aplicação em clima futuro no Rio Grande do Sul
(Universidade Federal de Santa Maria, 2016-03-01)
Crop models are tools that can help to assist in decision making on crops management and also in studies of the impact of future climate scenarios. The objectives of this thesis were (i) to develop a cassava simulation ...
Otimização dos processos de calibração e validação do modelo cropgro-soybean
(Universidade Federal de Santa Maria, 2016-12-06)
Crop models are important tools to improve the management and yield of agricultural systems. These improvements are helpful to meet the growing food and fuel demand without increase the crop areas. The conventional approach ...