Nitrogen Mineralization Potential
Mostrando 1-12 de 18 artigos, teses e dissertações.
-
1. Effect of previous soil management on sugarcane response to nitrogen fertilization
ABSTRACT: N Fertilizer recommendations must be improved to optimize N use efficiency (NUE) for bioenergy crops. A study was conducted to test the hypothesis that sites varying in historical usage of by-product differ in soil N-supplying power and sugarcane (Saccharum spp.) responsiveness to N fertilization. Our aim was to quantify soil N availability and N f
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-02
-
2. 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
-
3. 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
-
4. 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
-
5. 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
-
6. Erros potenciais na estimativa da mineralizacao do nitrogenio do solo / Potential errors in estimating soil nitrogen mineralization
Avaliou-se a ocorrência de N-orgânico solúvel em experimentos para estimativa da mineralização do nitrogênio de dez solos do Rio Grande do Sul. Foi utilizado o procedimento incubação-lixrviação e extração com CaCI2 0,01 mol L-1, onde foi determinado a concentração de N-mineral, N-total e N-orgânico solúvel no extraio. Constatou-se que a lixiv
Publicado em: 2010
-
7. Mineralização anaeróbia do nitrogênio em solos de várzea do Rio Grande do Sul
O potencial de mineralização do N (N0) do solo e a taxa de mineralização (k) são índices que podem ser usados na predição da disponibilidade do N em um determinado período de tempo que, juntamente com atributos de solo, podem estimar a absorção de N por plantas de arroz irrigado. O objetivo do presente trabalho foi de avaliar a mineralização do
Publicado em: 2010
-
8. Caracterização, decomposição e biodisponibilidade de nitrogênio e fósforo de materiais orgânicos de origem animal e vegetal / Characterization, decomposition and mineralization of nitrogen and phosphorus of organic materials from animals and plants
This work presents results of a set of experiments carried out under laboratory, green house and field conditions regarding to the chemical and biochemical characterization of organic materials: raw animal manures, industrial residues, green manures and composts elaborated with coffee husk. With the objective to evaluated their decomposition, mineralization
Publicado em: 2006
-
9. NITROGEN MINERALIZATION ANAEROBIC POTENTIAL IN PADDY SOIL FROM RIO GRANDE DO SUL STATE, BRAZIL / POTENCIAL DE MINERALIZAÇÃO ANAERÓBIA DO NITROGÊNIO EM SOLOS DE VÁRZEA DO RIO GRANDE DO SUL
O N orgânico do solo é a principal fonte de N para as culturas, o qual é disponibilizado mediante decomposição da matéria orgânica do solo (MOS) pelos microrganismos. A adubação nitrogenada é baseada no teor de MOS, entretanto, a decomposição da MOS e mineralização do N em ambiente alagado apresenta uma dinâmica diferente com relação ao ambi
Publicado em: 2005
-
10. AVALIAÇÃO E MODELIZAÇÃO DA DINÂMICA DE CARBONO E NITROGÊNIO EM SOLO COM O USO DE DEJETOS DE SUÍNOS / Evaluation and simulation of soil carbon and nitrogen dynamics with the use of pig manure
The managedment of the pig manure, in the slurry or solid form (deep bedding), and how it is applied to the soil, in the surface or incorporated, must affect the dynamics of the C and the N in the soil. The objectives of this work were: 1) to evaluate the dynamics of the C and the N in soil and to evaluate the N supply to maize which were applied pig manure
Publicado em: 2005
-
11. Microbial Decomposition of Wood in Streams: Distribution of Microflora and Factors Affecting [14C]Lignocellulose Mineralization †
The distribution and lignocellulolytic activity of the microbial community was determined on a large log of Douglas fir (Pseudotsuga menziesii) in a Pacific Northwest stream. Scanning electron microscopy, plate counts, and degradation of [14C]lignocelluloses prepared from Douglas fir and incubated with samples of wood taken from the surface and within the lo
-
12. Degradation of phenanthrene by Phanerochaete chrysosporium occurs under ligninolytic as well as nonligninolytic conditions.
In order to delineate the roles of lignin and manganese peroxidases in the degradation of polycyclic aromatic hydrocarbons by Phanerochaete chrysosporium, the biodegradation of phenanthrene (chosen as a model for polycyclic aromatic hydrocarbons) was investigated. The disappearance of phenanthrene from the extracellular medium and mycelia was determined by u