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Itens para a visualização no momento 91-100 of 207
Balanço e evolução temporal de teores de fósforo e potássio no solo em áreas manejadas com agricultura de precisão
(Universidade Federal de Santa Maria, 2011-08-31)
The need for improving nutrient use efficiency and increase savings demand a better
knowledge of soils and production systems. The objective of this study was to
evaluate the soil P and K budget and its relationships ...
Resposta de um monitor de produtividade com sensor ótico a variações de produtividade em arroz irrigado
(Universidade Federal de Santa Maria, 2011-04-08)
Precision Farming (PF) has been studied mainly in soybean, corn and wheat crops,
and its use has been increasing in commercial fields. However, in irrigated rice crop,
the use of this technology has not yet been fully ...
Resíduos de bifenilos policlorados em arroz e feijão do estado do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2011-09-12)
Polychlorinated biphenyls (PCBs) were commercially produced between 1929 and the mid 1980s with industrial purposes. The same properties that interested industrially, as chemical inertness, high dielectric constant, ...
Resistência biológica da madeira tratada de Eucalyptus grandis e Eucalyptus cloeziana em ensaios de laboratório e campo
(Universidade Federal de Santa Maria, 2011-07-19)
The Wood, because of its organic origin, depending on environmental conditions that
is exposed can be damaged by biological agents. In view of this becomes very
important that the same pass for any preservative treatment, ...
Relações entre atributos do solo e uso de água em arroz irrigado
(Universidade Federal de Santa Maria, 2011-03-23)
The knowledge of the water volume used in rice farming is of fundamental importance for the
solution related to water distribution problems between the multiple uses and the grant
concession. In this way, the objective ...
Lógicas vivenciais da identidade extensionista em uma organização pública de extensão rural
(Universidade Federal de Santa Maria, 2011-08-24)
This dissertation seeks to analyze and understand the process of identification and construction of professional identity from the perspective of rural extension workers, and the influence of public agricultural extension ...
Índice de qualidade e custos em função da variabilidade temporal da água de irrigação
(Universidade Federal de Santa Maria, 2011-03-15)
Water is a fundamental resource to life in Earth and has been used in multiple ways though
times. However, there has been a decrease in its availability due to the increase in its consumption
which implied a quantitative ...
Interferência alelopática de extratos de Hovenia dulcis Thunb. na germinação e crescimento inicial de plântulas de Parapiptadenia rigida (Benth.) Brenan
(Universidade Federal de Santa Maria, 2011-08-04)
This paper presents a test of the influence of ethanol extracts of the leaves, bark, roots, and
seeds of plants pseudofruits young and adult Hovenia dulcis Thunb. obtained by maceration
and percolation methods on seed ...
Temperatura de polimerização da resina acrílica odontológica na medula espinhal de ratos
(Universidade Federal de Santa Maria, 2011-03-02)
The aim of this study was to examine if the polymerization temperature of the dental acrylic causes neurological signs and histological changes in rat spinal cord. Forty eight rats were divided in two groups: GI or bone ...
Sistema de apoio à decisão para utilização no agronegócio (SADA): telemetria e tratamento de dados de desempenho de máquina de colheita
(Universidade Federal de Santa Maria, 2011-03-17)
To obtain higher profitability in farms, it is essential to proper management of the operations performed, caused by concern over the operational cost of the machines used, which represents a high percentage compared to ...