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Dinâmica do carbono durante a decomposição de palha de trigo marcada com 13C e dejetos líquidos de suínos
(Universidade Federal de Santa Maria, 2007-05-11)
In no-tillage areas, the pig slurry is applied on the cultural residues, as much as cover or commercial crops. A few research information exists involving the soil carbon dynamics with this modality of pig slurry application. ...
Controle biológico (Glomus etunicatum), químico (fipronil) e estudo molecular (PCR-ITS) do nematóide do cisto da soja
(Universidade Federal de Santa Maria, 2005-02-25)
The studies of cist nematodes were evaluated in the greenhouse condition and in the Prof. Marcos Rubens Fries Environment and Soil Microbiology and Biology Laboratory, in the Soil Department of the Federal University of ...
Culturas bioenérgéticas: produção de biomassa, decomposição e liberação de nitrogênio dos resíduos culturais
(Universidade Federal de Santa Maria, 2009-08-21)
The searching of renewable energy sources is growing the interest in the biofuels obtaining from vegetable oils, and stand out crop as sunflower, soy and castor bean. Besides the production of raw material to obtaining of ...
Suprimento de potássio em argissolo com histórico de adubação potássica
(Universidade Federal de Santa Maria, 2005-07-05)
In some soils with low amount of exchangeable potassium (Kt), the plants uptake amounts larger than the available ones, suggesting that nonexchangeble forms (Knt) participate in the plants supply. As use K fertilization ...
Perdas de nitrogênio por volatização de amônia e eficiência da adubação nitrogenada na cultura do arroz irrigado
(Universidade Federal de Santa Maria, 2006-03-20)
This work was developed using two greenhouse and two field experiments,
during 2004/2005 agricultural season at the Federal University of Santa Maria, Rio
Grande do Sul state. The objective was to evaluate nitrogen loss ...
Calcários calcítico e dolomítico e alterações nos tributos de solos e plantas sob sistema de plantio direto
(Universidade Federal de Santa Maria, 2009-02-27)
The lime application decrease soil acidity and increase the exchangeable calcium (Ca) and magnesium (Mg) level. calcitic and dolomitic limes cannot present the same efficiency in soil acidity correction and since it can ...
Qualidade da água para consumo humano ofertada em escolas e comunidades rurais da região central do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2008-02-15)
In rural areas, including rural schools, the water intended for human consumption may not have quality, due to problems in their capture and storage, leaving the rural population in the mercy of contamination and diseases ...
Perdas de água por evaporação de um solo cultivado com milho nos sistemas de plantio direto e convencional
(Universidade Federal de Santa Maria, 2008-04-04)
Worldwide, the agricultural sector is the largest consumer of water, reaching about 69% of total water derived from rivers, lakes and underground aquifers. Because of this huge consumption of water by agriculture and the ...
Simulação do transporte vertical de zinco, chumbo e cobre em solos contaminados
(Universidade Federal de Santa Maria, 2009-02-27)
The environmental contamination by metallic trace elements is a problem that is getting worse around the world due to the growth and the technologic development of
the humanity. Among the main sources of this kind of ...
Associação de fungos ectomicorrízicos com espécies florestais nativas do estado do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2006-02-24)
The work was development in Forestry Fepagro, Santa Maria, RS and in Laboratory of Biology and Microbiology of Soil and Environment Prof. Marcos Rubens Fries, from Department of Soil of Federal University of Santa Maria. ...