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Now showing items 21-30 of 3601
ÉSTERES COMBUSTÍVEIS EM MOTOR DE CICLO DIESEL SOB CONDIÇÕES DE PRÉ-AQUECIMENTO E VARIAÇÃO NO AVANÇO DE INJEÇÃO
(Universidade Federal de Santa Maria, 2008-04-23)
The renewed interest in energy for biomass is supported by the need for different energy sources and the need to protect the environment. Recently, because of increases in
crude oil prices, limited resources of fossil oil ...
Análise econômica e experiência comparativa entre agricultura de precisão e tradicional
(Universidade Federal de Santa Maria, 2007-11-01)
The study was developed in the farm Anna, located in the municipal district of Não-me-Toque RS, in the period included among the crops of 2002/03 and 2005/06. In the precision farming worked areas were generated yield ...
MODELAGEM DO DESENVOLVIMENTO E DO BALANÇO DE ÁGUA NO SOLO EM TRIGO
(Universidade Federal de Santa Maria, 2008-02-29)
Wheat is the main winter crop in Rio Grande do Sul State. Temperature and photoperiod are the major environmental factors that control development in wheat. Wheat plants exposed to cold, non freezing temperatures induce ...
PARÂMETROS DE IRRIGAÇÃO PARA O FEIJOEIRO EM DIFERENTES SOLOS E ÉPOCAS DE SEMEADURA NA REGIÃO CENTRAL DO RIO GRANDE DO SUL
(Universidade Federal de Santa Maria, 2008-03-24)
Common bean is produced in the entire territory of Brazil and it is the staple food of many Brazilians. In spite of being cultivated in a variety of meteorological conditions,
common bean is a plant sensitive to environmental ...
Retenção de água da chuva na palha, solo e dossel vegetativo de milho e feijão
(Universidade Federal de Santa Maria, 2007-12-17)
The water is the most important factor and, at the same time, the more limitant than the plant needs for its development. Short periods of hidric stress can reduce
crop productivity. In this way, the importance of knowing ...
INFLUÊNCIA DAS CARACTERÍSTICAS FÍSICAS DO SOLO NAS PERDAS DE ÁGUA POR ESCOAMENTO SUPERFICIAL NO SUL DO BRASIL E URUGUAI
(Universidade Federal de Santa Maria, 2007-02-28)
The objective of this work was to modeling runoff in soils with different physical characteristics, with three simulated rainfall intensities (30, 60 and 120 mm h-1) in Rio Grande do Sul and Uruguay. For simulated rainfall ...
Análise bioeconômica do seqüestro florestal de carbono e da dívida ecológica: uma aplicação ao caso do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2007-12-03)
Though heavily criticized, the Kyoto Protocol has stood out as the key political tool in addressing climate change. However the only of its instruments (IET, JI, CDM) that allows industrialized and developing countries to ...
Estudo da paisagem da floresta nacional de São Francisco de Paula, RS, Brasil
(Universidade Federal de Santa Maria, 2005-07-22)
The importance of Brazilian landscapes and the destruction problem are already known. Despite, the worry expressed by the population with the landscapes destination is normally emotional and subjective. The manifestations ...
SUBSÍDIOS PARA O MANEJO DE UMA FLORESTA OMBRÓFILA MISTA EM ESTÁGIO AVANÇADO DE REGENERAÇÃO NATURAL
(Universidade Federal de Santa Maria, 2005-01-25)
This research work was accomplished at a Forest Mixed
Ombrófila in advanced stage of natural regeneration and that had as objectives: to model mathematical equations to estimate the commercial volume and the shape factor ...
Avaliação da função sócio-ambiental da Floresta Nacional de Canela (RS) como subsídio ao ecoturismo e educação ambiental
(Universidade Federal de Santa Maria, 2005-09-12)
A study was carried out in Canela, RS, including the application of instruments which evaluated the
characteristics of the receiving region, the tourist profile, Canela s National Forest evaluation by the
tourists the ...