Microbial Quotient
Mostrando 13-24 de 27 artigos, teses e dissertações.
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13. Water type and irrigation time effects on microbial metabolism of a soil cultivated with Bermuda-grass Tifton 85
This study investigated the microbial metabolism in Bermuda-grass Tifton 85 areas after potable-water and effluent irrigation treatments. The experiment was carried out in Lins/SP with samples taken in the rainy and dry seasons (2006) after one year and three years of irrigation management, and set up on an entirely randomized block design with four treatmen
Brazilian Archives of Biology and Technology. Publicado em: 2011-06
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14. Atributos biológicos do solo sob influência da cobertura vegetal e do sistema de manejo
O objetivo deste trabalho foi avaliar os efeitos de culturas de cobertura e dos sistemas plantio direto (PD) e convencional (PC) sobre indicadores biológicos do solo, cultivado com feijoeiro-comum, no inverno, sob irrigação. O experimento foi conduzido em Santo Antônio de Goiás, GO, em Latossolo Vermelho distrófico textura argilosa. Culturas de cobertu
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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15. Microbial soil quality indicators under different crop rotations and tillage management.
An experiment was carried out under field conditions to assess the effects of soil management (no-tillage- NT and conventional tillage- CT) and crop rotation systems on microbial biomass-C (Cmic), basal soil respiration (BSR), metabolic quotient (qCO2), soil organic carbon content (Corg) and microbial carbon to organic carbon ratio (Cmic/Corg). Soil samples
Revista Ciência Agronômica. Publicado em: 2011
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16. Bioindicadores de qualidade do solo avaliados em diferentes profundidades sob plantio direto e convencional
Quantitative and qualitative studies of the microbiota show the changes in an agroecosystem, because of the management systems. Several studies have concluded that no-tillage (NT) is the agricultural management system that best preserves the quality of soil in relation to the PC. However, in most studies related to management system calculations are expresse
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/01/2010
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17. Indicadores microbiológicos e bioquímicos da qualidade do solo em transição para cultivo orgânico de feijoeiro comum (Phaseolus vulgaris L.) / Microbiological and biochemical indicators of the quality of ground transitioning to organic cultivation of common bean (Phaseolus vulgaris L.)
The soil quality indicators analyses during and after the transition period of conventional to organic production system are very important to evaluated the sustainability of agricultural systems. Soil microbiological and biochemical indicators shall quickly indicate changes occurred on both, soil management and production systems. The objective of this work
Publicado em: 2009
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18. Impact of herbicides on the microbial activity of soil cultivated with sugarcane / Impacto de herbicidas na atividade microbiana em solo cultivado com cana-de-açúcar
This work aimed at evaluating the impact of herbicides on the microbiological activity of soil cultivated with sugarcane. A first trial was installed in the laboratory with two bacterial isolates from the rhizosphere soil of sugarcane, Sac 4 and Sac 13, presenting, respectively, high and low potential for phosphate (P) solubilization. The growth and capacity
Publicado em: 2009
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19. Diversidade microbiana em solos sob florestas de Araucaria angustifolia / Microbial diversity in soils under Araucaria angustifolia forests
The Ombrophilic Mixed Forest, also called Araucaria Forest, represents one of the richest remainders of subtropical pluvial forests in Brazil. Its main representative species is the endangered Araucaria angustifolia. The microbial diversity plays an important role in functioning of forest ecosystems. However, the microbial diversity in soils with araucaria f
Publicado em: 2008
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20. Diversidade de glomeromycetes e atividade microbiana em solos sob vegetaÃÃo nativa do semi-Ãrido de Pernambuco
The occurrence of arbuscular mycorrhizal fungi (AMF) was studied in three areas of caatinga, located in the municipalities of Caruaru, Serra Talhada and Araripina, in Pernambuco. Soil samples were collected in August and December/2005 and August and October/2006. The AMF species were identified and the structure of the community, the mycorrhizal condition of
Publicado em: 2008
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21. Atributos microbiológicos de um latossolo bruno submetido a diferentes sistemas de manejo e calagem / Soil microbiological atributtes of a brown latosol submitted to different management systems and liming
This work was conducted in Guarapuava, state of Paraná, in a southern brazilian oxisol, in a trial established in 1978. The aim of this work was to analyse the effect of different soil management systems and liming on the microbial biomass and its activity related to C and N in the soil. The managment systems evaluated were: no-tillage with lime incorporate
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2007
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22. Fauna do solo e outros atributos edáficos como indicadores da qualidade ambiental em áreas com Araucaria angustifolia no Estado de São Paulo / Soil fauna and others edaphics attributes as environmental quality indicators in areas with Araucaria angustifolia in São Paulo State, Brazil
The study of biological soil quality indicators in areas with Araucaria is very important to understand ecological processes in these systems, since groups of the soil fauna are major factors in the decomposition and mineralization of organic matter, as well as modifiers of soil physical, chemical and biological properties and processes. The objective of thi
Publicado em: 2007
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23. Conversão do Cerrado em pastagem e sistemas agrícolas: efeitos na dinâmica da matéria orgânica do solo / Brazilian savanna conversion to pastures and agricultural systems: effects in the soil organic matter dynamics
A mudança de uso da terra no Cerrado acarreta em alterações na dinâmica da matéria orgânica do solo (MOS). Práticas de manejo com revolvimento das camadas de solo aceleram a decomposição da MOS, favorecendo as emissões de gases do efeito estufa do solo para atmosfera. Dessa forma, o objetivo desse trabalho foi avaliar as mudanças na dinâmica da M
Publicado em: 2007
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24. Doses de nitrogênio e seu efeito nos indicadores microbiológicos de qualidade de solo na cultura da cevada
The objective of this study was to evaluate the effect of different nitrogen doses and soil depths on microbial biomass carbon and nitrogen in a sandy textured Oxisol, cultivated with barley. The experiment was installed in June, 2004, in an area located at Embrapa Cerrados, Federal District, which had been cultivated with millet for three years and subseque
Publicado em: 2006