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Desenvolvimento e calibração de um mini-tanque evaporimétrico
(Universidade Federal de Santa Maria, 2004-02-27)
The present work had as aim a development and calibration of a small evaporation pan comparing its evaporation with class A pan and its capability to estimate the reference evapotranspiration comparing it with the ...
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 ...
Nutrientes na água do escoamento superficial em sistema plantio direto com mulching vertical
(Universidade Federal de Santa Maria, 2004-10-18)
The main pollutants of water resources from agricultural areas are organic matter, sediments, nutrients and pesticides, carried out mainly by runoff from farming lands. Considering this fact, it is very important the ...
Uso do método árvore de causas na investigação de acidente rural
(Universidade Federal de Santa Maria, 2008-01-21)
The accidents at work cause thousands of deaths every day around the world and Brazil is considered one of the champions of occurrences. They are caused by many
factors of being human, organizational, machinery and equipment ...
Levantamento e identificação de símbolos gráficos utilizados para caracterizar comandos e controles de tratores agrícolas
(Universidade Federal de Santa Maria, 2008-01-23)
The main objective of the study was carrying out the review and identification of the graphic symbols used in tractors, using as a setting technical standards ABNT NBR 11379 (1990) and ISO 11684 (1995), with the purpose ...
Calibração visando recomendações de fertilização fosfatada para as principais culturas de grãos sob sistema plantio direto no Paraguai
(Universidade Federal de Santa Maria, 2005-08-08)
At present time, 60% of the grain crop area in Paraguay is under the no-till (NT)
system. This fact puts the country as a leader in this conservation practice. With the
expansion of NT in the country, some questions were ...
Fluxo de gases de efeito estufa em sistemas de preparo do solo e rotação de culturas no planalto do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2009-02-27)
The main greenhouse gases (GHG) are the nitrous oxide (N2O), methane (CH4) and carbon dioxide (CO2), whose atmosphere concentrations increased in an unprecedented rate since the Industrial Revolution. This work aim evaluates ...
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 ...
Irrigação localizada na cultura do feijoeiro na depressão central - RS
(Universidade Federal de Santa Maria, 2009-02-27)
During the second harvest in the central region of Rio Grande do Sul, pluvial precipitations are usually irregularly distributed along the bean production cycle. This irregular distribution of rains during the bean cultivation ...