Nitrogen Mineralization
Mostrando 13-24 de 119 artigos, teses e dissertações.
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13. Changes in the microbial community during bioremediation of gasoline-contaminated soil
Abstract We aimed to verify the changes in the microbial community during bioremediation of gasoline-contaminated soil. Microbial inoculants were produced from successive additions of gasoline to municipal solid waste compost (MSWC) previously fertilized with nitrogen-phosphorous. To obtain Inoculant A, fertilized MSWC was amended with gasoline every 3 days
Braz. J. Microbiol.. Publicado em: 2017-06
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14. Digestibility, Determination of Metabolizable Energy and Bone Mineralization of Broilers Fed with Nutritionally Valued Phytase
ABSTRACT The objective of this study was to evaluate the effect of using exoenzyme phytase in broiler's diets on digestibility of nutrients, feed energy and tibia bone mineralization. A completely randomized design was used, with the following treatments: sorghum with dicalcium phosphate (SDP), corn with dicalcium phosphate (CDP), sorghum with meat and bone
Rev. Bras. Cienc. Avic.. Publicado em: 2017-01
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15. Degradation of sewage sludge compost disposed on the soil
ABSTRACT This study aimed to monitor degradation of compost from undigested sewage sludge disposed on soil surface or incorporated it. The sewage sludge was blended with wood sawdust during a 90-day composting to achieve a C/N ratio of 9. Each waste was dosed based on its total content of nitrogen and on an annual dose of 500 kg ha-1, which is broadly recomm
Eng. Agríc.. Publicado em: 2016-10
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16. Investigation of modified platelet-rich plasma (mPRP) in promoting the proliferation and differentiation of dental pulp stem cells from deciduous teeth
Stem cells from human exfoliated deciduous teeth (SHEDs) have great potential to treat various dental-related diseases in regenerative medicine. They are usually maintained with 10% fetal bovine serum (FBS) in vitro. Modified platelet-rich plasma (mPRP) would be a safe alternative to 10% FBS during SHEDs culture. Therefore, our study aimed to compare the pro
Braz J Med Biol Res. Publicado em: 01/09/2016
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17. Impact of nitrification inhibitor with organic manure and urea on nitrogen dynamics and N2O emission in acid sulphate soil
ABSTRACT The accurate prediction of N transformation is an important requisite for optimizing N use efficiency in cropping systems. An incubation study was conducted to verify the impacts of nitrification inhibitor (NI) with organic manure (OM) and urea on N dynamics and N2O emission in acid sulphate soil. The conducted experiment was two-level factorial wit
Bragantia. Publicado em: 27/11/2015
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18. Soil attributes under different crop management systems in an Amazon Oxisols
AbstractSoil biological properties have a high potential for use in assessing the impacts of crop systems. The objective of this study is to evaluate the effects of cropping systems on the biological attributes of an oxisol in the Amazonian state of Pará. The treatments consisted of approximately 20-year-old secondary vegetation, recovered pasture, no-tilla
Bragantia. Publicado em: 11/08/2015
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19. Contribution of nitrogen from sugarcane harvest residues and urea for crop nutrition
Sugarcane (Saccharum spp.) harvested without burning provides a substantial amount of remains (trash) on soil profiles which can be decomposed and release nutrients contributing to reduce fertilizer needs. The contribution of nitrogen (N) from sugarcane plant residues and fertilizer in sugarcane nutrition was assessed. Plant cane treatments were micro plots
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-10
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20. Evaluación de la mineralización de biosólidos de plantas de tratamiento de aguas residuales domésticas
The biosolids from wastewater Treatment plants have high potential of agricultural application due to the contents of organic matter and nutrients. The mineralization of biosolids from the Cañaveralejo Wastewater Treatment Plant, Cali-Colombia, was evaluated by fitting regression models. The content of NH4+, NO3- and NO2- were monitored during 126 days for
Rev. bras. eng. agríc. ambient.. Publicado em: 2013-04
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21. Biomass production and nitrogen cycling in mixed plantation with Eucalyptus genotypes and Acacia mangium / Produção de biomassa aérea e ciclagem de nitrogênio em consórcio de genótipos de Eucalyptus com Acacia mangium
As plantações de eucalipto ocupam 20 milhões de hectares em solos altamente intemperizados. Plantações consorciadas de eucalipto com acácia têm potencial de melhorar a produtividade do povoamento, em relação às respectivas plantações homogêneas, através do efeito facilitador da fixação biológica de N pelas árvores de acácia. O objetivo foi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/11/2012
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22. INIBIDOR DE NITRIFICAÇÃO ADICIONADO AO SOLO COM CAMA DE AVIÁRIO E SUA INFLUÊNCIA NA DINÂMICA DO NITROGÊNIO E DO CARBONO / NITRIFICATION INHIBITOR ADDED TO SOIL WITH POUTRY MANURE INFLUENCING NITROGEN AND CARBON DYNAMICS
Inibidores de nitrificação podem reduzir o potencial de contaminação ambiental de dejetos de animais, relativamente à lixiviação de nitrato (NO3 -) e à emissão de óxido nitroso (N2O). Todavia, essa estratégia não tem sido suficientemente avaliada pela pesquisa, especialmente com a cama de aviário (CA). Por isso, o objetivo do presente trabalho f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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23. DISPONIBILIDADE DO NITROGÊNIO EM SOLOS DE VÁRZEA E PARÂMETROS DA PLANTA PARA AVALIAÇÃO NUTRICIONAL DA CULTURA DO ARROZ IRRIGADO / NITROGEN AVAILABILITY IN LOWLAND SOILS AND PLANT PARAMETERS FOR NUTRITIONAL EVALUATION OF FLOODED RICE CROP
O objetivo desse trabalho foi avaliar a mineralização de N em condições aeróbicas e anaeróbicas em experimento de incubação e monitorar o nível de N nas plantas com o uso clorofilômetro para estabelecer um valor crítico de leitura SPAD (Soil Plant Analysis Development) para a cultura do arroz irrigado. Foram desenvolvidos dois estudos, sendo o est
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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24. Vinhaça concentrada de cana-de-açúcar: monitoramento das propriedades químicas do solo e mineralização líquida de nitrogênio / Concentrated vinasse from sugarcane: monitoring of soil chemical properties and net nitrogen mineralization
A geração de grande quantidade de vinhaça resultante da produção de etanol induziu questionamentos a respeito de sua disposição e possível armazenamento. No Estado de São Paulo, a norma P4.231 da CETESB restringiu a aplicação de vinhaça em muitos solos, resultando na necessidade de distribuí-la em áreas distantes da usina. Porém, devido a gran
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/07/2012