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Simulação econômica de rotação de culturas irrigadas na região central do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2004-10-01)
An agricultural production system is constituted by a succession of processes divided in subsystems in which it is emphasized the carriage of productive process related to the environment. In these subsystems, there are ...
Marketing no pré-desenvolvimento de máquinas agrícolas: um modelo de referência
(Universidade Federal de Santa Maria, 2008-11-21)
The theme of the thesis research proposal is the development of the field of
knowledge of marketing in the design pre-stage of agricultural machinery. This is
developed over the pre-development phase in design of ...
Recomendações de fertilização fosfatada e potássica para as principais culturas de grãos sob sistema plantio direto no Paraguai
(Universidade Federal de Santa Maria, 2008-03-06)
The recommendations of fertilization have as main purpose to facilitate and aid the decisions about application of fertilizers necessary to obtain yields of maximum economic
efficiency. Pointing out the importance of the ...
Relação solo-máquina-planta num argissolo cultivado e sob campo nativo
(Universidade Federal de Santa Maria, 2009-08-17)
The negative effects due to soil compaction in agricultural soils may result in inappropriate conditions for plant growth. This study was aimed at evaluating the
traffic effect on physical and mechanical soil properties ...
Valoração econômica e ambiental pelo uso da água como instrumento de gestão de recursos hídricos
(Universidade Federal de Santa Maria, 2004-12-07)
In spite of your social and economical importance, the farming of rice has been a lot sought, mainly on
the environmental impact caused in the resources hydrics. However this problem, doesn't give to classify it as big ...
Impacto da aplicação da legislação ambiental na produção orizícola da bacia hidrográfica do Arroio Grande - Santa Maria - RS
(Universidade Federal de Santa Maria, 2005-02-28)
The present paper had as purpose to evaluate the impact in the application of the environmental legislation and hydro resources of rice growing in the hydrographic basin of Arroio Grande which is a local authority of Santa ...
Sistemas de culturas em plantio direto adaptados à pequena propriedade relacionados com a erosão e atributos de um argissolo vermelho
(Universidade Federal de Santa Maria, 2009-11-16)
Considering soil management systems, are rare the research projects that are carried on by a time period long enough to several soil attributes may be expressed conveniently. The no-till system influences several soil ...
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 ...
Mulching vertical e manejo da água em sistema plantio direto
(Universidade Federal de Santa Maria, 2005-02-28)
With the main objective to evaluate the hydrological behavior of the vertical mulching in no tillage system, this work have been realized in 2002/2003 and 2003/2004 agricultural years on Latossolo Vermelho Distrófico típico ...
Aplicação de técnicas de manejo localizado na cultura do arroz irrigado (Oryza sativa L.)
(Universidade Federal de Santa Maria, 2007-03-09)
While in the traditional agricultural management soil attributes variability used in the crop production has not been considered, the site-specific management aims
to identify this variability. The main objective of the ...