Results 11 to 20 of about 654,161 (169)

Is the thermodynamic efficiency of soil microbial communities related to ecosystem maturity and stress? [PDF]

, 2014
According to the second law of thermodynamics, no process can be 100% efficient and all processes must increase the total entropy of the system they occupy.
Grice, Samuel M.
core   +7 more sources

Drivers of the microbial metabolic quotient across global grasslands [PDF]

, 2023
Aim The microbial metabolic quotient (MMQ; mg CO2-C/mg MBC/h), defined as the amount of microbial CO2 respired (MR; mg CO2-C/kg soil/h) per unit of microbial biomass C (MBC; mg C/kg soil), is a key parameter for understanding the microbial regulation of ...
Schütz, M, Hagedorn, F, Eisenhauer, N, Lembrechts, J J, Zimmermann, S, Borer, E T, MacDougall, A S, Broadbent, A A D, Eskelinen, A, Knops, J M H, Risch, A C, Davies, K F, Caldeira, M C, Fay, P A, McCulley, R L   +14 more
core   +1 more source

Weakly exceptional quotient singularities [PDF]

, 2013
A singularity is said to be weakly-exceptional if it has a unique purely log terminal blow up. In dimension 2, V. Shokurov proved that weakly exceptional quotient singularities are exactly those of types Dn, E6, E7, E8.
Sakovics, Dmitrijs
core   +4 more sources

Soil Microbial Activity and Biomass in Semiarid Agroforestry Systems Integrating Forage Cactus and Tree Legumes

Agronomy, 2021
Vegetation cover affects soil organic matter and activity of soil microorganisms. We investigated the intercropping effect of forage cactus with tree legumes on soil microbial biomass and organic matter in the semi-arid tropic, state of Pernambuco ...
Dayanne Camelo, José Carlos Batista Dubeux, Mércia Virginia Ferreira dos Santos, Mario Andrade Lira, Giselle Gomes Monteiro Fracetto, Felipe José Cury Fracetto, Márcio Vieira da Cunha, Erinaldo Viana de Freitas   +7 more
doaj   +1 more source

Microbial activities, carbon, and nitrogen in an irrigated Quartzarenic Neosol cultivated with cowpea in southwest Piauí

Semina: Ciências Agrárias, 2017
The aim of this study was to evaluate microbial biomass and total organic carbon and nitrogen of an irrigated Quartzarenic Neosol cultivated with two cowpea cultivars in Bom Jesus, Piauí, Brazil.
Larissa Castro Diógenes, José Ferreira Lustosa Filho, Alessandro Franco Torres da Silva, Júlio César Azevedo Nóbrega, Rafaela Simão Abrahão Nóbrega, João Irene Filho, Aderson Soares de Andrade Júnior   +6 more
doaj   +1 more source

Atributos biológicos do solo sob influência da cobertura vegetal e do sistema de manejo Soil biological attributes influenced by cover crops and management systems

Pesquisa Agropecuária Brasileira, 2007
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.
Mozaniel Batista da Silva, Huberto José Kliemann, Pedro Marques da Silveira, Anna Cristina Lanna   +3 more
doaj   +1 more source

Microbial volatile fingerprints: potential use for soil/water diagnostics and correlation with traditional microbial parameters [PDF]

, 2007
This project used an electronic nose (E-nose) system composed of an array of 14 nonspecific conducting polymer sensors for soil and water diagnostics, based on qualitative microbial volatile production patterns. It tested the feasibility of using soil
Bastos, Ana Catarina
core   +7 more sources

Indicadores biológicos de qualidade do solo em diferentes sistemas de uso no brejo paraibano Biological indicators of soil quality in different land use systems in paraiban swamp region, Brazil

Ciência e Agrotecnologia, 2009
A avaliação da qualidade do solo é uma ferramenta importante para monitorar a sua degradação, bem como planejar a implantação de práticas sustentáveis de manejo.
Mônica Lima Pôrto, Jailson do Carmo Alves, Adriana Araújo Diniz, Adailson Pereira de Souza, Djail Santos   +4 more
doaj   +1 more source

Soil microbial metabolism and invertase activity under crop rotation and no-tillage in North China

Plant, Soil and Environment, 2013
Soil samples were collected at both jointing and maturing stages of maize and wheat to compare the effects of 4-year no-tillage (NT) and conventional tillage (CT) on seasonal variations of microbial biomass carbon (C), metabolic quotient, and invertase ...
J.L. Hu, A.N. Zhu, J.H. Wang, J. Dai, J.T. Wang, R.R. Chen, X.G. Lin   +6 more
doaj   +1 more source

Atributos biológicos indicadores da qualidade do solo em pastagem cultivada e nativa no Pantanal Biological indicator attributes of soil quality under cultivated and natural pasture in the Pantanal wetlands

Pesquisa Agropecuária Brasileira, 2009
O objetivo deste trabalho foi avaliar as alterações nos atributos biológicos do solo, em razão da conversão floresta nativa pastagem cultivada e submissão de pastagens nativas a sistema pastejo contínuo, um Neossolo Quartzarênico, no Pantanal sul-mato ...
Evaldo Luis Cardoso, Marx Leandro Naves Silva, Fátima Maria de Souza Moreira, Nilton Curi   +3 more
doaj   +1 more source