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Itens para a visualização no momento 11-20 of 173
Aperfeiçoamento de um mecanismo sulcador para plantio direto de mandioca
(Universidade Federal de Santa Maria, 2010-10-23)
In the cassava production the conventional tillage, characterized by soil preparation with intensive mobilization, is commonly used. However, when this practice results in the maintenance of small quantities of straw on ...
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 ...
Análise da viabilidade técnica e econômica da irrigação em híbridos de milho
(Universidade Federal de Santa Maria, 2018-08-10)
Due to the water deficit irrigation is important for the stability of the maize crop productivity.
However, due to the costs involved, the analysis of the economic viability of irrigation is
fundamental to justify its ...
Milho crioulo e melhorado: tolerância a deficiência hídrica na perspectiva da segurança e soberania alimentar
(Universidade Federal de Santa Maria, 2018-05-25)
The objectives of this thesis were to (i) discuss the importance of maize crop
nowadays and its crucial role in the future for food production in scenarios of water defcit,
and its importance in the conservation of ...
Desligamento automático de seção em semeadoras e taxa variada de sementes: novas abordagens para a semeadura precisa
(Universidade Federal de Santa Maria, 2018-05-07)
Precision planting has been an emerging concept worldwide; however, the benefits of some technologies associated to this approach are still a knowledge gap. Studies evaluating the benefits of automatic section control ...
Influência da irrigação e do manejo da desfolha sobre o balanço hídrico e produção de forragem de Tifton 85
(Universidade Federal de Santa Maria, 2017-07-24)
The studies with the use of irrigation systems in pastures focus on assessing productive responses of forage plants. However, it is important to evaluate the use of technologies and favor the application of the knowledge ...
Resposta da irrigação na produção de forragem de milheto
(Universidade Federal de Santa Maria, 2018-02-16)
Irrigation is a technique that seeks to ensure high yields and reduce periods of forage scarcity. With the inclusion of irrigation, there is an increase in the cost of production, this should be less than the income added ...
Sistematização de conhecimento para qualificação de pontas aspersoras para simuladores de chuva
(Universidade Federal de Santa Maria, 2017-12-15)
In agriculture, water acts in all physiological processes, biochemical and also in the thermal regulation of crops. Excess water in the form of rainfall generates losses of agricultural production, mainly due to the effects ...
Agricultura de precisão no Brasil: fatores condicionantes, perfil sócio econômico e perspectivas
(Universidade Federal de Santa Maria, 2018-06-25)
This research deals with the socioeconomic profile of Brazilian producers that adopt Precision Agriculture (PA), their levels of satisfaction with technology, the most employed techniques, the constraints to the adoption ...
Uso de inteligência artificial para estimativa da capacidade de suporte de carga do solo
(Universidade Federal de Santa Maria, 2017-02-13)
The knowledge of the relationships between physical and mechanical properties of the soil may contribute to the development of pedotransfer functions (PTFs), to estimate other soil properties are difficult to measure. The ...