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Activity of soil microbial biomass altered by land use in the southwestern Amazon Bragantia
Mazzetto,André Mancebo; Cerri,Carlos Eduardo Pellegrino; Feigl,Brigitte Josefine; Cerri,Carlos Clemente.
ABSTRACT The increasing demand for food creates environmental problems, mainly due to the removal of native vegetation cover for agriculture expansion in Brazil. These changes in land use lead to changes in the soil organic matter dynamics. Microorganisms represent the most biological and physiological diversity in soil, as well as are responsible for more than 95% of the decomposition and nutrient cycling processes. The objective in this research was to check if there is difference of patterns in activity of soil microbial biomass under varied natural vegetation, pastures in use and agricultural systems recently established. The area covered by this study corresponds to the states of Rondônia and Mato Grosso. Canonical variate analysis was used in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Microbial biomass; Basal respiration; Amazon.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000100079
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Atributos biológicos do solo em diferentes sistemas de manejo no município de Ponta Porã, MS. Infoteca-e
SILVA, I. M. de O. da; TOMAZI, M.; JUNQUEIRA, P. H.; SALTON, J. C.; COMUNELLO, E.; SOUZA, M. H. da S..
bitstream/item/189752/1/ORAL4.pdf
Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Biomassa microbiana; Respiração basal; Sistemas integrados; Basal respiration; Integrated systems; Microbial biomass.
Ano: 2018 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1103018
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Atributos físicos, químicos e biológicos do solo em sistemas de integração lavoura-pecuária-floresta. Repositório Alice
ASSIS, P. C. R.; STONE, L. F.; OLIVEIRA, J. de M.; WRUCK, F. J.; MADARI, B. E.; HEINEMANN, A. B..
Sistemas integrados vêm se tornando comuns em várias regiões do Brasil e estudos sobre os efeitos desses sistemas nos atributos do solo têm-se intensificado. Contudo, ainda há dúvidas sobre seus impactos no ambiente, devido ao uso e manejos aplicados, como o tráfego de máquinas e pisoteio animal. Este trabalho foi realizado com objetivo de detectar alterações nos atributos físicos, químicos e biológicos do solo após implantação de sistemas de integração lavoura-pecuária-floresta (iLPF) e identificar aqueles adequados para a detecção na mudança da qualidade do solo. Foram coletadas amostras de solo nas camadas de 0-0,10 m em Nova Canãa do Norte, MT, e em Cachoeira Dourada, GO, em áreas sob iLPF com uma (iLPF1) ou três (iLPF3) linhas de eucalipto por renque...
Tipo: Artigo de periódico Palavras-chave: Integração Lavoura-pecuária-floresta; Pastagem; Solo; Integração; Carbono; Biomassa; Microbial biomass.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112176
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Atributos microbiológicos do solo em sistemas de integração lavoura-pecuária no munícipio de Três Lagoas, MS. Infoteca-e
RIBEIRO, I. dos S.; MERCANTE, F. M..
bitstream/item/148237/1/5.-atributos-microbiologicos-do-solo.pdf
Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Biomassa microbiana; Qualidade do solo; Bioindicador; Bioindicators.; Microbial biomass; Soil quality..
Ano: 2016 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1054018
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Bacteria diversity and microbial biomass in forest, pasture and fallow soils in the southwestern Amazon basin Rev. Bras. Ciênc. Solo
Cenciani,Karina; Lambais,Marcio Rodrigues; Cerri,Carlos Clemente; Azevedo,Lucas Carvalho Basílio de; Feigl,Brigitte Josefine.
It is well-known that Amazon tropical forest soils contain high microbial biodiversity. However, anthropogenic actions of slash and burn, mainly for pasture establishment, induce profound changes in the well-balanced biogeochemical cycles. After a few years the grass yield usually declines, the pasture is abandoned and is transformed into a secondary vegetation called "capoeira" or fallow. The aim of this study was to examine how the clearing of Amazon rainforest for pasture affects: (1) the diversity of the Bacteria domain evaluated by Polymerase Chain Reaction and Denaturing Gradient Gel Electrophoresis (PCR-DGGE), (2) microbial biomass and some soil chemical properties (pH, moisture, P, K, Ca, Mg, Al, H + Al, and BS), and (3) the influence of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Land use changes; PCR-DGGE; Bacterial diversity; Microbial biomass; Principal component analysis.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000400015
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Bioindicadores de qualidade do solo cultivado com milho em sucessão a adubos verdes sob bases agroecológicas. Repositório Alice
SILVA, S. da S.; GOMES, M. da S.; GALLO, A. da S.; MERCANTE, F. M.; BATISTOTE, M.; SILVA, R. F. da.
Tipo: Artigo de periódico Palavras-chave: Plantio Direto.; Microbial biomass; No-tillage..
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1025534
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Biological Properties and Organic Matter Dynamics of Soil in Pasture and Natural Regeneration Areas in the Atlantic Forest Biome Rev. Bras. Ciênc. Solo
Nogueira,Leandro Ribeiro; Silva,Cristiane Figueira da; Pereira,Marcos Gervasio; Gaia-Gomes,João Henrique; Silva,Eliane Maria Ribeiro da.
ABSTRACT The removal of original vegetation for crops and pasture production and then followed by natural regeneration is a standard practice in the Atlantic Forest, which has produced patches with different degrees of degradation and regeneration across the landscape. The aim of this study was to evaluate the effects of replacement of native forest by pasture and natural regeneration of vegetation on soil and on soil organic matter (SOM) dynamics in the dry and rainy season in an Atlantic Forest fragment in Passa Vinte, Minas Gerais (MG), Brazil. Soil samples were collected in the rainy and dry season, at a depth of 0.00-0.05 m. The variables determined were total organic carbon (TOC) and particle-size fractions of SOM [particulate organic carbon (POC)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Organic carbon; Microbial biomass; Arbuscular mycorrhizal fungi; Biodiversity; Forest fragment.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100420
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Biomass and vegetation index by remote sensing in different caatinga forest areas. Repositório Alice
LUZ, L. R.; GIONGO, V.; SANTOS, A. M. dos; LOPES, R. J. de C.; LIMA JÚNIOR, C. de.
Continued unsustainable exploitation of natural resources promotes environmental degradation and threatens the preservation of dry forests around the world. This situation exposes the fragility and the necessity to study landscape transformations. In addition, it is necessary to consider the biomass quantity and to establish strategies to monitor natural and anthropic disturbances. Thus, this research analyzed the relationship between vegetation index and the estimated biomass using allometric equations in different Brazilian caatinga forest areas from satellite images. This procedure is performed by estimating the biomass from 9 dry tropical forest fragments using allometric equations. Area delimitations were obtained from the Embrapa collection of...
Tipo: Artigo de periódico Palavras-chave: Snsoriamento remoto; Florestas secas; Energia renovável; Modelagem; Vegetação; Vegetação Nativa; Caatinga; Floresta; Biomassa; Remote sensing; Dry forests; Renewable energy sources; Structural equation modeling; Biomass; Microbial biomass.
Ano: 2021 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1134527
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Biomassa e atividade microbiana do solo em diferentes fitofisionomias do Pantanal da Nhecolândia - MS, Brasil. Infoteca-e
BAZZO, J. C.; SILVA, M. L. N.; FREITAS, D. A. F; SOARES, C. R. F. S.; GOMIDE, P. H. O.; SANTOS, S. A.; CARDOSO, E. L..
objetivo do presente trabalho foi avaliar a biomassa e atividade microbiana do solo sob diferentes fitofisionomias do Pantanal da Nhecolândia.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Biomassa; Solo; Microbiologia do Solo; Microbial biomass; Soil.
Ano: 2018 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1103762
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Biomassa microbiana e estoques de C e N do solo em diferentes sistemas de manejo, no Cerrado do Estado do Piauí - DOI: 10.4025/actasciagron.v31i3.687 Agronomy
Matias, Maria da Conceição Bezerra da Silva; UFPI; Salviano, Adeodato Ari Cavalcante; UFPI; Leite, Luiz Fernando de Carvalho; EMBRAPA; Araújo, Ademir Sérgio Ferreira de; UFPI.
O objetivo do trabalho foi verificar os efeitos de diferentes sistemas de manejo sobre a biomassa microbiana e os estoques totais de carbono orgânico e nitrogênio em um Latossolo Amarelo. Os sistemas de manejos avaliados foram: plantio direto (PD), preparo convencional (PC), além de uma área recém-desmatada (ARD) e uma com vegetação nativa (AVN). As amostras de solo foram coletadas nas profundidades de 0-5, 5-10 e 10-20 cm. Nessas amostras, foram determinados os teores e estoques totais de C e N, a respiração basal, o carbono da biomassa microbiana (Cmic) e os quocientes microbiano (Cmic/COT) e metabólico (qCO2). A área sob plantio direto apresentou maiores teores de C e N, além de estoques de C na superfície do solo. Para os estoques de N, não houve...
Palavras-chave: 5.01.00.00-9 Agronomia plantio direto; Biomassa microbiana; Respiração basal Microbiologia e Bioquímica do Solo no-tillage; Microbial biomass; Basal respiration.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/687
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Biomassa microbiana e estrutura do solo em sistemas de produção agrícola. Infoteca-e
TOMAZI, M.; JUNQUEIRA, P. H.; COÊLHO, R. da S.; SALTON, J. C.; MONTEIRO, L. C.; SILVA, I. M. de O. da; SOUZA, M. H. da S..
bitstream/item/204988/1/SBSA-2.pdf
Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Integração lavoura pecuária; Cultivation System; Manejo do Solo; Microbiologia do Solo; Microbial biomass; Livestock.
Ano: 2019 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1114628
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Biomassa microbiana em solo sob pastagens nativas em diferentes estados de conservação, no Pantanal Sul Mato-Grossense. Repositório Alice
PELISSARO, H. E. G.; ZANELLA, M. S.; SANTOS, S. A.; CARDOSO, E. L.; REIS JUNIOR, F. B. dos; BRASIL, M. S..
O objetivo desse trabalho foi avaliar a biomassa microbiana do solo sob pastagens nativas em diferentes estados de conservação no Pantanal. O estudo foi conduzido na fazenda Nhumirim, sub-região da Nhecolândia, Pantanal Sul Mato-Grossense. As amostragens em Neossolo Quartzarênico foram realizadas em três áreas de pastagem sob diferentes estados de conservação (Excelente, Bom e Moderado), classificados em função do percentual de cobertura de forrageiras (CF) e em área de Reserva.
Tipo: Separatas Palavras-chave: Carbono; Solo; Analise do solo; Biomassa; Microbiologia.; Microbial biomass; Soil properties; Soil organic carbon.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1056809
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Carbon Stocks in Compartments of Soil Organic Matter 31 Years after Substitution of Native Cerrado Vegetation by Agroecosystems Rev. Bras. Ciênc. Solo
Ferreira,Eloisa Aparecida Belleza; Bustamante,Mercedes Maria da Cunha; Resck,Dimas Vital Siqueira; Figueiredo,Cícero Célio de; Pinto,Alexandre de Siqueira; Malaquias,Juaci Vitória.
ABSTRACT Changes in carbon stocks in different compartments of soil organic matter of a clayey Latossolo Vermelho Distrófico (Typic Haplustox), caused by the substitution of native savanna vegetation (cerrado sensu stricto) by agroecosystems, were assessed after 31 years of cultivation. Under native vegetation, a stock of 164.5 Mg ha-1 C was estimated in the 0.00-1.00 m layer. After 31 years of cultivation, these changes in soil C stocks were detected to a depth of 0.60 m. In the case of substitution of cerrado sensu stricto by no-tillage soybean-corn rotation, a reduction of at least 11 % of the soil C pools was observed. However, the adoption of no-tillage as an alternative to tillage with a moldboard plow (conventional system) reduced CO2 emissions by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Conventional tillage; No-tillage; Microbial biomass; Particulate organic matter.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100507
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Chemical and biochemical properties of Araucaria angustifolia (Bert.) Ktze. forest soils in the state of São Paulo Rev. Bras. Ciênc. Solo
Carvalho,Fernanda de; Moreira,Fatima Maria de Souza; Cardoso,Elke Jurandy Bran Nogueira.
Araucaria angustifolia, commonly named Araucaria, is a Brazilian native species that is intensively exploited due to its timber quality. Therefore, Araucaria is on the list of species threatened by extinction. Despite the importance of soil for forest production, little is known about the soil properties of the highly fragmented Araucaria forests. This study was designed to investigate the use of chemical and biological properties as indicators of conservation and anthropogenic disturbance of Araucaria forests in different sampling periods. The research was carried out in two State parks of São Paulo: Parque Estadual Turístico do Alto do Ribeira and Parque Estadual de Campos de Jordão. The biochemical properties carbon and nitrogen in microbial biomass...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil quality; Microbial biomass; Soil enzymes; Soil respiration; Microbial metabolic quotient; QCO2.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000400013
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Chemical and Biochemical Properties of Oxisols after Sewage Sludge Application for 16 Years Rev. Bras. Ciênc. Solo
Yada,Marcela Midori; Melo,Wanderley José de; Mingotte,Fábio Luiz Checchio; Melo,Valéria Peruca de; Melo,Gabriel Maurício Peruca de.
ABSTRACT The large production of sewage sludge (SS), especially in large urban centers, has led to the suggestion of using this waste as fertilizer in agriculture. The economic viability of this action is great and contributes to improve the environment by cycling the nutrients present in this waste, including high contents of organic matter and plant nutrients. This study evaluated the chemical and biochemical properties of Dystrophic and EutroferricLatossolos Vermelhos (Oxisols) under corn and after SS application at different rates for 16 years. The field experiment was carried out in Jaboticabal, São Paulo State, Brazil, using a randomized block design with four treatments and five replications. Treatments consisted of control - T1 (mineral...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil fertility; Enzymatic activity; Soil basal respiration; Microbial biomass; Urban waste.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000501303
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Chemical and microbiological changes in a sandy soil with pig liquid waste application in southern Brazil. Repositório Alice
MATOS, M. A. de; COLOZZI FILHO. A.; BARBOSA, G. M. de C.; CAVIGLIONE, J. H.; NOGUEIRA, M. A.; ANDRADE, D. S..
Liquid residue from pig farming contains nutrients that can be used for the fertilization of cultivated soils. The aim of this study was to evaluate chemical and microbiological changes in a sandy soil under pasture with Bermuda Grass (Cynodon spp) that received doses of pig liquid waste (PLW). The experiment was conducted in Cianorte-PR, Brazil , in a Typic Hapludox soil with sandy te xture . The treatments consisted of 30, 60 and 90 m3 ha-1yr-1 of PLW or chemical fertilizer (CF ) applied for two years in a randomized block design, with three replications. Soil samples were taken at 0-10 cm, 10-20 cm and 20-40 cm layers , after three mont hs of the second consecutive application of PLW in the second year, before grazing. PLW increased the concentrations...
Tipo: Artigo de periódico Palavras-chave: Biomassa; Fertilizante liquido; Microbial biomass; Liquid fertilizers.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1062633
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Conservation system improves soil microbial quality and increases soybean yield in the Northeastern Cerrado. Repositório Alice
PIRES, M. de F. M.; MEDEIROS, J. C.; SOUZA, H. A. de; ROSA, J. D.; BOECHAT, C. L.; MAFRA, A. L.; NOLETO, K. C.; ROCHA, A. G. da.
The conservation tillage systems is based on the surface protection by crop residue and reduced soil disturbance. These two principles can favor the soil quality and promote sustainable agricultural systems. The study was developed with the objective of measure soil microbial biomass, soil basal respiration, enzymatic activity and soybean yield in conservation systems cultivated with cover crops species in the Northeastern Cerrado. The experiment was carried out in 2016/2017 and 2017/2018 cropping seasons, performed in a randomized blocks design. The treatments were soil tillage systems allocated in the main plots: no-tillage (NT) and minimum tillage (MT) and the cover crops were allocated in the subplots: Pennisetum glaucum (millet), Urochloa ruziziensis...
Tipo: Artigo de periódico Palavras-chave: Qualidade do solo; Ciclagem de nutriente; Plantio Direto; Biomassa; Glycine Max; Soil quality; No-tillage; Nutrient resorption (physiology); Microbial biomass.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1125692
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Development of biofilm in anaerobic reactors treating wastewater from coffee grain processing AGRIAMBI
Fia,Fátima R. L.; Borges,Alisson C.; Matos,Antonio T. de; Duarte,Iolanda C. S.; Fia,Ronaldo; Campos,Lidiane C. de.
In recent decades the use of anaerobic fixed bed reactors has been established in Brazil for the treatment of different effluents. As the capability of retaining microorganisms by support media (fixed bed) is a factor influencing the performance of these reactors, the present study aims at evaluating the influence of three fixed bed on the effectiveness of treating an effluent with high pollution potential: wastewater from coffee grain processing (WCP), with organic matter concentrations varying from 812 to 5320 mg L-1 in the form of chemical oxygen demand (COD). Support media used for the immobilization of biomass were: blast furnace slag, polyurethane foam and #2 crushed stone with porosities of 53, 95 and 48%, respectively. The mean efficiency of COD...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anaerobic treatment; Microbial biomass; Support media; Coffee.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662010000200013
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Effect of management systems and cover crops on organic matter dynamics of soil under vegetables Rev. Bras. Ciênc. Solo
Souza,Rodrigo Fernandes de; Figueiredo,Cícero Célio de; Madeira,Nuno Rodrigo; Alcântara,Flávia Aparecida de.
Vegetable production in conservation tillage has increased in Brazil, with positive effects on the soil quality. Since management systems alter the quantity and quality of organic matter, this study evaluated the influence of different management systems and cover crops on the organic matter dynamics of a dystrophic Red Latosol under vegetables. The treatments consisted of the combination of three soil tillage systems: no-tillage (NT), reduced tillage (RT) and conventional tillage (CT) and of two cover crops: maize monoculture and maize-mucuna intercrop. Vegetables were grown in the winter and the cover crops in the summer for straw production. The experiment was arranged in a randomized block design with four replications. Soil samples were collected...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Organic carbon; Oxidizable fractions; Microbial biomass; Humic fractions.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000300024
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Effect of nitrogen fertilization on soil microbial biomass in an Oxisol cultivated with irrigated barley in the Brazilian Cerrado. Repositório Alice
DINIZ, L. T.; RAMOS, M. L. G.; RIBEIRO JUNIOR, W. Q.; CRUZ, A. F.; FRANCA, L. V. de; DINIZ, B. T.; AMABILE, R. F..
Abstract:The aim of this study was to evaluate the effect of different nitrogen doses and five period of sample collection, on soil microbial biomass - nitrogen (SMB-N), total nitrogen (total N) and percentual ratio of the microbial biomass and total N (SMB-N/total N) in a Oxisol cultivated with barley (Hordeum vulgare L.). The experiment was installed in June, 2005, in an area located at Embrapa Cerrados, Federal District. The experimental design was a randomized block, with three replicates. The plots received doses of nitrogen: 20 - 40 - 80 kg ha-1 N and a control without it and the subplots were period of soil sample. Three applications of N were realized: 10 kg ha-1 on the 5th day (06/14) after sowing; the rest of N was parceled in two applications...
Tipo: Separatas Palavras-chave: Biomasa microbiana; Qualidade do solo; Cerrado; Hordeum vulgare; Nitrogênio; Nitrogen; Soil quality; Microbial biomass.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1053272
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