Dark Matter
Mostrando 13-24 de 127 artigos, teses e dissertações.
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13. Improvement of yield of the edible and medicinal mushroom Lentinula edodes on wheat straw by use of supplemented spawn
The research evaluated the interactions of two main factors (strain / types of spawn) on various parameters with the purpose to assess its effect on yield and biochemical composition of Lentinula edodes fruiting bodies cultivated on pasteurized wheat straw. The evaluation was made with four strains (IE-40, IE-105, IE-124 and IE-256). Different types of spawn
Braz. J. Microbiol.. Publicado em: 2014-06
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14. A new species of Giovanella Bonatto (Diptera, Calliphoridae, Mesembrinellinae) from Colombia
A new species of Giovanella Bonatto (Diptera, Calliphoridae, Mesembrinellinae) from Colombia. The Mesembrinellinae are exclusively Neotropical, with 33 nominal species distributed in nine genera. Only the genera Mesembrinella, Eumesembrinella, Huascaromusca and Laneella had until now been recorded in Colombia. In this work we present a new species of Giovane
Rev. Bras. entomol.. Publicado em: 14/06/2013
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15. A estrutura e composição de comunidades microbianas (Bacteria e Archaea) em fragmentos de carvão pirogênico de Terra Preta de Índio da Amazônia Central / Structure and composition of bacterial communities (Bacteria and Archaea) in fragments of pyrogenic charcoal from Amazonian Dark Earth in the Central Amazon
Amazonian Dark Earth (ADE), also known as Terra Preta de Índio, present tropical A horizon, high pH, important nutrients for plant growth, high pyrogenic charcoal levels and intense biological activity when compared to its soil of origin. Soil microbial community is essential for ecosystem function, which is involved in fundamental processes such as the dec
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/02/2012
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16. Turbulência em cosmologia: análise de dados simulados e observacionais usando computação de alto desempenho / Turbulence in cosmology: analysis of simulated and observational data using high performance computing
Recent results from the study of the Large-Scale Structure evolution suggest that the process of structure formation may have similarities with the dynamics of a turbulent fluid. The scaling law for the energy distribution in a turbulent fluid shows an inertial range of power -5/3, known as the Kolmogorov s law. This thesis presents an evaluation of the grav
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/05/2011
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17. Xylanase and cellulase activities during anaerobic decomposition of three aquatic acrophytes
Enzymatic activity during decomposition is extremely important to hydrolyze molecules that are assimilated by microorganisms. During aquatic macrophytes decomposition, enzymes act mainly in the breakdown of lignocellulolytic matrix fibers (i.e. cellulose, hemicellulose and lignin) that encompass the refractory fraction from organic matter. Considering the im
Brazilian Journal of Microbiology. Publicado em: 2011-03
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18. Soil organic matter and fertility of anthropogenic dark earths (Terra Preta de Índio) in the Brazilian Amazon basin.
2009
Revista Brasileira de Ciência do Solo. Publicado em: 2011
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19. Dry matter production response of coastcross (cynodon dactylon) (L.) pears) to sources and rates of nitrogen.
Dry matter production of a coastcross pasture grown on a dark red latosol (hapludox), in Sao Carlos. Sao Paulo State, Brazil, under tropical altitude climate, was evaluated. The goal was to verify the efficientcy of N rates as urea and ammonium nitrate: 0,25,50,100 and 200kg ha per cutting, in five periods. Both sources were equally efficient. The mean N rat
INTERNATIONAL GRASSLAND CONGRESS. Publicado em: 2011
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20. Influence of micronutrients on dry matter yield and interaction with other nutrients in annual crops.
The objective of this work was to determine the influence of Zn, Mn and Cu on shoot dry matter yield and uptake of macro and micronutrients in upland rice, common bean and corn. Six greenhouse experiments were conducted using a Dark Red Latosol (Typic Haplusthox). Treatments consisted of application of Zn at 0, 5, 10, 20, 40, 80 and 120 mg kg-1, of Mn at 0,
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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21. Potassium supply to cotton roots as affected by potassium fertilization and liming.
Cotton (Gossypium hirsutum) is known to have a high requirement for K and to be very sensitive to low soil pH. Most of K reaches plant roots by diffusion in the soil. As K interacts with Ca and Mg, liming can interfere in K movement in the soil, affecting eventually the plant nutrition. The objective of this work was to study the effect of dolomitic lime and
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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22. Influencia da relacao calcio:magnesio do corretivo na nodulacao, producao e composicao mineral da alfafa.
O objetivo deste trabalho foi avaliar o efeito da relacao Ca:Mg do corretivo da acidez do solo na producao de materia seca, composicao mineral da alfafa, e nodulacao. O solo utilizado foi um Latossolo Vermelho-Escuro distrofico. Utilizou-se o delineamento inteiramente casualizado em esquema fatorial com seis relacoes de Ca:Mg (1:0; 1:1; 2:1; 3:1; 4:1, na dos
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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23. Ganho de peso de novilhas em pastagem de Brachiaria decumbens recuperada com stylosanthes guianensis cv. Mineirão.
RESUMO: Com o objetivo de avaliar o efeito de duas estratégias de recuperação de pastagens degradada de Brachiaria decubens cv. Brasilisk, no período de outubro de 1993 a dezembro de 1997, conduziu-se um experimento em um Latossolo Vermelho-Esecuro, textura argilosa, na Fazenda Santa Inez, Uberlândia (MG). Os tratamento estudados foram: (a) calagem e ad
Planaltina. Publicado em: 2011
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24. Produção e valor nutritivo da forragem de clones de capim-elefante no Distrito Federal.
RESUMO: Avaliaram-se, no período de novembro de 2002 a abril de 2004, a produção de matéria seca (total, lâminas foliares e hastes) o valor nutritivo (proteína bruta, PB; digestibilidade in vitro da matéria seca, DIVMS; e a fibra em detergente neutro, FDN) em dez clones de capim-elefante (Pennisetum purpureum Schum.), tendo como testemunhas as varieda
Planaltina. Publicado em: 2011