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Casca de arroz e esterco bovino para a multiplicação de minhocas e produção de mudas de alface, tomate e boca-deleão
(Universidade Federal de Santa Maria, 2008-02-22)
The earthworms are organisms of the edaphic fauna with great capacity of transformation of organic residues with stabled composting. The potential of these organisms have the
advantage in the earthworm-breeding, seeking ...
Produção de mudas e crescimento de Eucalyptus grandis Hill ex maiden inoculado com fungos ectomicorrízicos em área arenizada
(Universidade Federal de Santa Maria, 2009-02-26)
Eucalyptus. grandis is one of the main species used in forestry, in the Rio Grande do Sul State. The reforestations have been concentrated in low fertility soil areas, especially in phosphorus, such as the Quartzarenic ...
Biogrânulos aeróbicos em reator seqüencial em batelada para o tratamento de efluente de biodigestor proveniente da suinocultura
(Universidade Federal de Santa Maria, 2008-03-17)
The fermentation of pig slurry into anaerobic digesters has been a recommended practice for the energetic utilization of the produced methane (CH4), thus reducing the emission of this greenhouse gas into the atmosphere. ...
Transformações do carbono e do nitrogênio no solo e produção de aveia com o uso de dejetos de suínos em plantio direto
(Universidade Federal de Santa Maria, 2005-08-12)
The use of pig manure, especially of the deep-bedding manure, is not so often in the winter cover crops, preceding the summer commercial plantation. The aim of this study was to evaluate the carbon and nitrogen dynamics ...
Emissão de óxido nitroso e dióxido de carbono após aplicação de dejetos de suínos e bovinos em um argissolo
(Universidade Federal de Santa Maria, 2009-03-02)
Emission of greenhouse effect gases due to the agricultural use of the dejections of animals as fertilizers, as well as the mineralization of the carbon of those materials in the soil healthy aspects are still relatively ...
Biotransformações do nitrogênio no solo durante a decomposição de palha de trigo e dejetos líquidos de suínos
(Universidade Federal de Santa Maria, 2007-04-20)
Nitrogen is usually the element present in higher concentration in pig slurry and the one that causes the major problems related to environmental pollution, since it is subjected of several transformations after soil slurry ...
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 ...
Eficiência da adubação a taxa variável em áreas manejadas com AP no Rio Grande do Sul
(Universidade Federal de Santa Maria, 2008-09-26)
This research aim to evaluate the efficiency of variable fertilizer rate in
croplands under precision agriculture (PA) in Rio Grande do Sul State with different
level of technologies adoption. In the first chapter was ...
Emissão de gases de efeito estufa em sistemas de manejo em solo do planalto médio do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2008-03-04)
Agriculture is directly linked to atmospheric concentration of greenhouse gases (GHG) through basic processes that occur in the soil-plant system. Agricultural soils can act as a source or sink of GHG depending on the ...
Emissões de CO2 do solo sob preparo convencional e plantio direto em latossolo vermelho do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2008-03-04)
Climatic change is associated with the increase of greenhouse gases (GHG) concentration, including carbon dioxide (CO2). Among the most important strategies to decrease global warming are decrease emissions and increase ...