Inorganic nitrogen, microbial biomass and microbial activity of a sandy Brazilian Cerrado soil under different land uses

Frazão, Leidivan Almeida; Píccolo, Marisa de Cássia; Feigl, Brigitte Josefine; Cerri, Carlos Clemente; Cerri, Carlos Eduardo Pellegrino

doi:10.1016/j.agee.2009.09.003

Cited by 83 publications

(75 citation statements)

References 46 publications

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“…As observed for phosphatase, greater water availability increases microbial activity, corroborating results of other studies (Nunes et al, 2009;Frazão et al, 2010). Also in relation to BR, no effect of P splitting on microbial activity was observed in either layer.…”

Section: Microbiological Propertiessupporting

confidence: 91%

“…The application of 1,800 kg ha -1 P 2 O 5 at once resulted in higher MBC under irrigation than in the rainfed regime, promoting a 2.3 and 1.87-fold increase in the layers 0-5 and 5-10 cm, respectively. The greater water availability increases microbial biomass (Nunes et al, 2009;Frazão et al, 2010), which responds intensely to the seasonal fluctuations of humidity (Gama-Rodrigues et al, 2005), and influences C cycling and nutrients.…”

Section: Microbiological Propertiesmentioning

confidence: 99%

“…There are several factors that influence the soil microbial activity and biomass and enzymatic activity, e.g., moisture (Gama-Rodrigues et al, 2005;Frazão et al, 2010), P concentration in soil (Ferreira et al, 2008), the soil layers (Figueiredo et al, 2007;Babujia et al, 2010), and soil organic matter (SOM) (Perez et al, 2004). There is, however, a lack of information about the behavior of microbiological and oxidizable SOM fractions under differentiated irrigation and P splitting systems.…”

Section: Introductionmentioning

confidence: 99%

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Microbiological properties and oxidizable organic carbon fractions of an oxisol under coffee with split phosphorus applications and irrigation regimes

Costa

Sato

Ramos

et al. 2013

Rev. Bras. Ciênc. Solo

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SUMMARYPhosphorus fertilization and irrigation increase coffee production, but little is known about the effect of these practices on soil organic matter and soil microbiota in the Cerrado. The objective of this study was to evaluate the microbiological and oxidizable organic carbon fractions of a dystrophic Red Latossol under coffee and split phosphorus (P) applications and different irrigation regimes. The experiment was arranged in a randomized block design in a 3 x 2 factorial design with three split P applications (P1: 300 kg ha -1 P 2 O 5 , recommended for the crop year, of which two thirds were applied in September and the third part in December; P2: 600 kg ha -1 P 2 O 5 , applied at planting and then every two years, and P3: 1,800 kg ha -1 P 2 O 5 , the requirement for six years, applied at once at planting), two irrigation regimes (rainfed and year-round irrigation), with three replications. The layers 0-5 and 5-10 cm were sampled to determine microbial biomass carbon (MBC), basal respiration (BR), enzyme activity of acid phosphatase, the oxidizable organic carbon fractions (F1, F2, F3, and F4), and total organic carbon (TOC). The irrigation regimes increased the levels of MBC, microbial activity and acid phosphatase, TOC and oxidizable fractions of soil organic matter under coffee. In general, the form of dividing P had little influence on the soil microbial properties and OC. Only P3 under irrigation increased the levels of MBC and acid phosphatase activity.Index terms: P cycling, soil microbial activity, acid phosphatase, soil organic matter.( Adriana Rodolfo da Costa et al. RESUMO: ATRIBUTOS MICROBIOLÓGICOS E FRAÇÕES OXIDÁVEIS DO CARBONO ORGÂNICO DE LATOSSOLO CULTIVADO COM CAFEEIRO, SOB PARCELAMENTOS DE FÓSFORO E REGIMES HÍDRICOS

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Section: Microbiological Propertiessupporting

confidence: 91%

Section: Microbiological Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microbiological properties and oxidizable organic carbon fractions of an oxisol under coffee with split phosphorus applications and irrigation regimes

Costa

Sato

Ramos

et al. 2013

Rev. Bras. Ciênc. Solo

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“…Cultivation systems generally have lower levels of MB-C than soils under native vegetation (KASCHUK et al, 2010). The low level of MB-C under sugarcane cultivation may also be related the disruption of microbial communities by certain management forms: 1) nitrogen fertilization; 2) allocation of decomposed waste (FRAZÃO et al, 2010); 3) traditional burning of sugarcane crop, a factor associated with strong alteration in the structure of soil community (RACHID et al, 2013); 4) the quantity and quality of crop residues available to soil microorganisms (GAMA-RODRIGUES et al, 2008b).…”

Section: Results End Discussionmentioning

confidence: 99%

Chemical and Microbiological Attributes Under Different Soil Cover

Novak

Carvalho

Santiago

et al. 2017

CERNE

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ABSTRACT:A challenge for the environmental recovery of degraded areas is the search for soil data. In this process, the microbiological parameters and soil chemicals are potential indicators of soil quality. This study aimed to evaluate soil quality based on microbiological and chemical soil attributes in different areas involving environmental recovery, sugarcane cultivation and remnants of native vegetation located in a rural private property farm in State of Mato Grosso do Sul, Brazil, in Hapludox Eutrophic soil. The microbiological (microbial biomass carbon, basal respiration, microbial quotient and metabolic quotient) and chemical parameters (organic matter, carbon, pH, cationic exchange capacity, sum of bases, potassium, phosphorus, magnesium, calcium, saturation base and potential acidity) were assessed. Data were assessed by variance and multivariate analysis (Principal Component Analysis and cluster analysis). Overall, the results showed highest alteration in the chemical and microbiological characteristics of the soil in sugarcane cultivation area in comparison with other areas. Considering the studied recovery areas, REC1, REC5 and REC7 show chemical and microbiological conditions with most similarity to native vegetation. Despite the short period of the resilience enhancement of environmental recovery areas, the development of vegetation cover and establishment of the microbial community were determined to be important factors for improving soil quality and environmental recovery in several of the areas studied. ATRIBUTOS QUÍMICOS E MICROBIOLÓGICOS SOB DIFERENTES COBERTURAS DE SOLORESUMO: Um desafio para a recuperação ambiental de áreas degradadas é a busca de dados de solo. Neste processo, os parâmetros microbiológicos e química do solo são potenciais indicadores de qualidade do solo. Este estudo objetivou avaliar a qualidade do solo com base em atributos microbiológicos e químicos do solo em diferentes áreas, em recuperação ambiental, cultivo de cana e remanescentes de vegetação nativa, localizada em uma fazenda de propriedade privada rural no estado de Mato Grosso do Sul, Brasil, em solo Háplico Eutrófico. Os parâmetros microbiológicos (carbono da biomassa microbiana, respiração basal, quociente microbiano e quociente metabólico) e químicos (matéria orgânica, carbono, pH, capacidade de troca de cátions, soma de bases, potássio, fósforo, magnésio, cálcio, saturação por bases e acidez potencial) foram acessados. Dados foram avaliados por meio de análises de variância e multivariada (análise de agrupamentos e Análise de Componentes Principais). Em geral, os resultados mostraram maior alteração das características químicas e microbiológicas do solo na área de cultivo de cana em comparação com outras áreas. Considerando as áreas em recuperação estudadas, REC1, REC5 e REC7 mostram condições químicas e microbiológicas com maior semelhança com a vegetação nativa. Apesar do curto período do realce de resiliência das áreas de recuperação ambiental, o desenvolvimento da cobertura vegetal e o estabelecimento ...

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“…Solo, 34:1585-1592 CCM (104,3 μg g -1 h -1 C-CO 2 ) e CCE (114,4 μg g -1 h -1 C-CO 2 ), não sendo constatada diferença significativa entre os demais sistemas. A esperada tendência de maior atividade respiratória da biomassa microbiana nos sistemas com menor intensidade de manejo do solo, conforme reportado em outros trabalhos (Vargas & Scholles, 2000;Costa et al, 2006;Hungria et al, 2009;Meriles et al, 2009;Frazão et al, 2010), não foi comprovada no presente estudo. O sistema de plantio direto com milho (PDM), notadamente na profundidade de 0-10 cm, apresentou menor produção de C-CO 2 que os sistemas CCB e CBAM, nos quais o manejo do solo foi mais intensivo.…”

Section: Resultsunclassified

Biomassa e atividade microbiana em solo sob diferentes sistemas de manejo na região fisiográfica Campos das Vertentes - MG

Silva

Cardoso

et al. 2010

Rev. Bras. Ciênc. Solo

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A biomassa e a atividade microbiana têm sido apontadas como indicadores adequados de alterações provocadas por diferentes sistemas de uso e manejo do solo. O objetivo deste trabalho foi avaliar as alterações na biomassa e na atividade microbiana de um Latossolo Vermelho-Amarelo ácrico típico, sob Cerrado nativo e diferentes sistemas de manejo, na região fisiográfica Campos das Vertentes, Minas Gerais. Os sistemas avaliados foram: cultivo convencional com batata (CCB); cultivo com batata, sucedido por aveia e rotação com milho (CBAM); cultivo convencional com milho (CCM); plantio direto com milho (PDM); cultivo convencional com eucalipto (CCE); e o Cerrado nativo (CN) como referência. Foram coletadas amostras de solo nas profundidades de 0-10, 10-20 e 20-30 cm, analisados o C microbiano (Cmic) e a respiração basal e calculados o quociente metabólico (qCO 2 ) e a relação Cmic/C orgânico. A biomassa e a atividade microbiana foram influenciadas pelos diferentes sistemas de manejo do solo, e as condições mais satisfatórias para a microbiota do solo ocorreram no Cerrado nativo. O manejo mais intensivo do solo e o uso frequente de agrotóxicos, característicos dos sistemas CCB e CBAM, determinaram redução nos teores de Cmic, menores valores da relação Cmic/C orgânico e maiores valores de qCO 2 , indicando uma provável condição de estresse para a biomassa microbiana. Termos de indexação: carbono microbiano, qualidade do solo, matéria orgânica.(1) Parte da Dissertação de Mestrado do primeiro autor apresentada ao Curso de Pós-Graduação em Ciência do Solo da Univer-

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Inorganic nitrogen, microbial biomass and microbial activity of a sandy Brazilian Cerrado soil under different land uses

Cited by 83 publications

References 46 publications

Microbiological properties and oxidizable organic carbon fractions of an oxisol under coffee with split phosphorus applications and irrigation regimes

Microbiological properties and oxidizable organic carbon fractions of an oxisol under coffee with split phosphorus applications and irrigation regimes

Chemical and Microbiological Attributes Under Different Soil Cover

Biomassa e atividade microbiana em solo sob diferentes sistemas de manejo na região fisiográfica Campos das Vertentes - MG

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