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Dinâmica do nitrogênio-15N de palha de arroz, soja e sorgo em dois solos de várzea
(Universidade Federal de Santa Maria, 2016-07-29)
The use of alternative crops to rice (Oryza sativa L.), such as soybean (Glycine Maxl.) and sorghum (Sorghum bicolor L.) in lowland areas changes the chemical characteristics of the straw returned to soil. Straw quality ...
Decomposição de resíduos culturais de plantas de cobertura de solo e emissões de óxido nitroso
(Universidade Federal de Santa Maria, 2012-02-28)
The inclusion of summer cover crops (SCC) in the no-till system is an interesting alternative to promote the addition of elevated quantities of plant biomass and nitrogen (N) to the soil. The C and N dynamics during the ...
Decomposição de camadas do Mulch e contribuição para o carbono e nitrogênio do solo
(Universidade Federal de Santa Maria, 2019-03-08)
Recent studies have shown that mulches formed by different amounts of cultural residues have similar decomposition rates, evidencing the reduced effect of contact between soil and residue on decomposition. Recent studies ...
Potencial fertilizante de adubos orgânicos à base de esterco bovino e sua utilização na produção de mudas de alface
(Universidade Federal de Santa Maria, 2011-07-28)
Agricultural production generates a diversity of organic waste, including manure, which is
often deposited on the soil without adequate treatment, that could damage the environment.
Treatment processes such as composting ...
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 ...
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 ...
Interação entre a qualidade de resíduos culturais e a textura do solo com a dinâmica do carbono
(Universidade Federal de Santa Maria, 2016-01-08)
The chemical quality of crop residues is considered the primary driver of the dynamics of
carbon and stabilization of soil carbon (C) from the crop residues (C-new) depend on the soil
texture. The aim of this study was ...