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Itens para a visualização no momento 111-120 of 142
Perdas de água por escoamento superficial de um solo com diferentes níveis de resíduos vegetais e declividades do terreno
(Universidade Federal de Santa Maria, 2010-02-26)
The search for information and technology that can contribute for an adequate management of soil and water utilization has been in an increasing need, as their
conservation is of great matter for a sustainable agriculture. ...
Avaliação de sistemas de implantação de soja em áreas típicas de cultivo de arroz irrigado
(Universidade Federal de Santa Maria, 2015-03-06)
For the management difficulties and high costs of irrigated rice deployment in Rio Grande do Sul, currently seeks new possibilities, as the introduction of soybean in the areas of cultivation of rice. The aimed of this ...
Índice de Vegetação por Diferença Normalizada (NDVI) no patossistema Puccinia triticina Triticum aestivum
(Universidade Federal de Santa Maria, 2015-03-02)
One of the major problems and difficulties in the production process is to monitor / predict the presence, intensity and abundance of these pathogens under field conditions in a timely manner to avoid significant damage ...
Parâmetros mecânicos de tração em sistemas de cultivo de melancia
(Universidade Federal de Santa Maria, 2010-03-29)
In Rio Grande do Sul, Brazil, the watermelon is cultivated in a large area of sandy soils, where the conventional tillage is the most commonly used, favoring the water erosion. This leads the areas under cultivation of ...
Lâminas de irrigação no desenvolvimento e produção do feijão-caupi na região central do Rio Grande do Sul, Brasil
(Universidade Federal de Santa Maria, 2016-01-15)
The yield of cowpea in Brazil is still low due to inadequate supply of water by rain and irrigation during the vegetative and reproductive stages. One of the alternatives to improve yield is conducting regional studies ...
Avaliação do potencial fitorremediador de plantas floríferas em solo contaminado com cobre
(Universidade Federal de Santa Maria, 2015-07-17)
Soil contamination is an environmental, social and economic problem. In wine areas,
prolonged use of phytosanitary products, the copper base, contributed to the accumulation of
this element in the soil, when in excess ...
Análise de formulações explícitas do coeficiente de perda de carga em condutos pressurizados
(Universidade Federal de Santa Maria, 2017-07-07)
One of the parameters involved in the design of pressurized hydraulic systems is the pressure drop of the pipes. This verification can be performed through the Darcy-Weisbach formulation, which considers a coefficient of ...
Modificações morfofisiológicas em plantas de milho submetidas a déficit hídrico
(Universidade Federal de Santa Maria, 2010-03-01)
The use of no tillage can be an important technology to minimize the effects of the water deficit, for providing more water to the plants according to the maintenance of crop residues the soil surface. This technique reduces ...
Influência da densidade e espaçamento em duas cultivares de soja no manejo de Phakopsora pachyrhizi
(Universidade Federal de Santa Maria, 2016-02-27)
In the current situation, Brazil has cultivars with grain yield potential of 6000 kg.ha-1. However, due to a number of factors such as, plant spacing in the environment and management practices, productivity in the national ...
Influência de diferentes manejos de água sob o crescimento do capim sudão (Sorghum sudanense (Piper) Stapf)
(Universidade Federal de Santa Maria, 2017-02-13)
The adequate supply of year-round quality pastures is essential for animal development. However, during the spring-summer period the quantity and quality of the natural pastures diminish, due to the lack of rain or the ...