Buscar
Itens para a visualização no momento 31-40 of 126
Racionalidades tecnoburocráticas e quilombolas: integração da comunidade Córregos das Moças ao PAA
(Universidade Federal de Santa Maria, 2014-05-13)
This study aims to understand how the bureaucratic rationality of the Food Acquisition Program
(PAA) me relates to the rationality of the Maroons Community Córrego das Moças , located
in the city of Adrianópolis - PR. ...
Fontes e parcelamento do nitrogênio na cultura do milho
(Universidade Federal de Santa Maria, 2014-07-03)
Nitrogen (N) in maize is a major nutrient that influences grain yield, because it participates on numerous metabolic pathways. It is present in the soil organic matter (OM) and it is necessary that it passes through a ...
Gesso ou intervenção mecânica nas melhorias do gradiente de cátions do solo e na produtividade da soja e milho em plantio direto
(Universidade Federal de Santa Maria, 2014-02-28)
The No-Tillage (NT) diffused in about 70 % of producing grain crops and has emerged as an alternative to soil losses due to the conventional tillage. However, it has been observed in recent years that the basic assumptions ...
Plano amostral para avaliação da entomofauna na cultura de soja na região de Santa Maria
(Universidade Federal de Santa Maria, 2014-06-06)
Knowledge of the diversity of insects present in soybean is of fundamental importance for ecological studies and pest management. Sampling is one of the bases for decision making in pest control in soybean fields. Thus, ...
Estratégias para reduzir as emissões gasosas e melhorar o aproveitamento do nitrogênio de dejetos de suínos pelo milho
(Universidade Federal de Santa Maria, 2014-02-28)
While promoting increased farm production, applications of pig slurry (PS), in notillage
systems (NT), may represent an important source of environmental contamination.
Therefore, the pursuit of technological strategies ...
Acidificação de dejetos de suínos em compostagem automatizada: emissões gasosas de nitrogênio e resposta da alface à aplicação do composto no solo
(Universidade Federal de Santa Maria, 2014-08-29)
Automated pig slurry (PS) composting has been praised in Brazil by environmental agencies, pig farmers and agribusinesses as a promising strategy for the proper disposal of these residues. Nevertheless, one of the problems ...
Flutuação diária e emissão acumulada de óxido nitroso após aplicação de dejetos de suínos sobre resíduos culturais de aveia em diferentes estágios de decomposição
(Universidade Federal de Santa Maria, 2014-02-26)
The application of pig slurry (PS) in agricultural areas, mostly grown under no-till, can
cause a substantial increase in N losses by nitrous oxide emissions (N2O) into the atmosphere,
both for the characteristics of the ...
Uso de Zeólitas naturais para mitigar a volatilização de amônia na fase inicial da compostagem de dejetos líquidos de suínos
(Universidade Federal de Santa Maria, 2014-01-15)
Gaseous losses of nitrogen (N) during composting of pig slurry (PS), mainly due to volatilization of ammonia (NH3), have important environmental and economic implications, requiring technological alternatives for their ...
Fertilização nitrogenada à dose variada na cultura do milho
(Universidade Federal de Santa Maria, 2014-02-25)
Maize is the main cereal produced in Brazil, being highly responsive to nitrogen fertilization, since the tropical and subtropical soils presents insufficient availability of nitrogen (N) to attend the culture demand in ...
Estudo das tensões residuais do ferro fundido em um componente pantográfico de semeadora para agricultura de precisão
(Universidade Federal de Santa Maria, 2014-09-16)
This work takes for finality main Magma carries out a study through the use of the software of numerical simulation, for checking of the residual tensions provoked by the process of fusing, in the support of the pantograph ...