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Dinâmica do carbono em latossolo vermelho sob sistemas de preparo de solo e de culturas
(Universidade Federal de Santa Maria, 2006-04-27)
The soil C stock is a consequence of the balance between the C losses by the CO2 emission (associate to the heterotrofic microorganisms activity) and erosion, and to C inputs, associate to organic compounds input by the ...
Fixação de nitrogênio por bactérias diazotróficas em cultivares de arroz irrigado
(Universidade Federal de Santa Maria, 2006-12-15)
Rice is a very important culture in the South of Brazil, with productivity mean of 6 t ha-1, requiring large amounts of nitrogen. The biological nitrogen fixation (BNF) has already been established for legumes and in ...
Metais pesados em solos sob aplicação de dejetos líquidos de suínos em duas microbacias hidrográficas de Santa Catarina
(Universidade Federal de Santa Maria, 2006-10-27)
The application of pig slurry in agricultural soils can be an efficient form of nutrients cilcle and one of the best alternative for discard and minimizing his pollutant potential. However, the differences between his ...
Ocorrência, caracterização e eficiência de fungos micorrízicos em Eucalyptus grandis e Acacia mearnsii
(Universidade Federal de Santa Maria, 2006-08-29)
It is essential that the quality of seedlings production in the forest species has an
appropriate substrate, with good structure, consistency, high porosity, high capacity of
nutrition and water retention and inoculated ...