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Disponibilidade e transferência de nitrogênio, fosforo e potássio em um argissolo submetido à aplicação de fontes de nutrientes
(Universidade Federal de Santa Maria, 2012-02-29)
The swine and cattle activities are of great economic and social importance in Brazil in the
southern region, but generate of large volumes of waste, that when applied to the soil can be
mineralized and part of the nutrients ...
Recuperação do potássio adicionado em solos com diferentes teores e o efeito na disponibilidade às plantas
(Universidade Federal de Santa Maria, 2012-05-30)
The sustainability of production is widespread and discussed within the productive systems, resource utilization of the productive chain of the agricultural sector, mainly inputs, requires constant evaluations, since their ...
Mudança do uso da terra e tipo de solo são fatores determinantes de fungos e arqueas no bioma pampa
(Universidade Federal de Santa Maria, 2012-02-29)
Land-use change and soil type can have significant impact on microbial communities of soil.
The Pampa biome in recent decades has undergone severe changes in landscape due to landuse
change, mainly for the introduction of ...
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 ...
Controle de qualidade de análises de solos da rede Rolas - RS/SC e procedimentos estatísticos alternativos
(Universidade Federal de Santa Maria, 2012-02-15)
Soil chemical analysis must be accurate to avoid errors in the recommendations of lime and fertilizers. The quality control program of the ROLAS-RS/SC network evaluates the analysis accuracy by the distance of a result, ...
Dinâmica da população de coliformes após a aplicação de dejetos de suínos no solo e durante a sua compostagem automatizada
(Universidade Federal de Santa Maria, 2012-08-31)
The pig slurry (DLS) may have fecal microorganisms and parasites that contaminate soil and
water sources. The efficient treatment of waste prevents the accumulation of organic material
and reduces the population of ...
Estratégias para melhorar o fornecimento de nitrogênio ao milho e ao trigo por dejetos suínos e reduzir a emissão de óxido nitroso do solo
(Universidade Federal de Santa Maria, 2012-02-28)
The swine manure is a major source of nitrogen (N) to crops, although its
inappropriate use can lead to N losses which in return pollute environment and reduces its
value as organic fertilizer. The sustainability of pig ...
Inibidor de nitrificação adicionado ao solo com cama de aviário e sua influência na dinâmica do nitrogênio e do carbono
(Universidade Federal de Santa Maria, 2012-08-31)
Nitrification inhibitors can reduce the potential for environmental contamination of animal
wastes, relatively to nitrate (NO3
-) leaching and nitrous oxide (N2O) emission. However, this
strategy has not yet been ...
Injeção de dejetos de suínos no solo em plantio direto associada a um inibidor de nitrificação: efeito nas emissões de óxido nitroso e amônia
(Universidade Federal de Santa Maria, 2012-11-09)
The application of pig slurry into the soil can result in losses of nitrogen (N) through
volatilization of ammonia (NH3) and the emission of nitrous oxide (N2O), which reduce the
efficiency of pig slurry (PS) as source ...
Agricultura por ambiente: manejo sítio específico da população de milho
(Universidade Federal de Santa Maria, 2012-02-24)
Precision agriculture (PA) is based on site-specific interventions, according to the spatial variability of productive factors. This strategy tends to decrease the spatial variability of yield in relation to that obtained ...