Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 8
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Biodegradation of glyphosate in rhizospheric soil cultivated with Glycine max, Canavalia ensiformis e Stizolobium aterrimum Planta Daninha
Santos,J.B.; Ferreira,E.A.; Fialho,C.M.T.; Santos,E.A.; Galon,L.; Concenço,G.; Asiazú,I.; Silva,A.A..
Biodegradation of glyphosate was evaluated in rhizospheric soil cultivated with Glycine max (soybean, var. BRS245-RR), Canavalia ensiformis and Stizolobium aterrimum. After these species were cultivated for 60 days, soil samples were collected, placed in flasks and treated with 14C-glyphosate. After 30 days of incubation, the total release rate of C-CO2 was determined along with microbial biomass (MBC), metabolic quotient (qCO2), and degradation percentage of the radio-labeled glyphosate released as 14C-CO2. A higher mass of rhizosphere-associated microorganisms was verified in the soil samples from pots cultivated with soybean, regardless of glyphosate addition. However, in the presence of the herbicide, this characteristic was the most negatively...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil microbial activity; Leguminous plants; Transgenic soybean.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582009000400016
Imagem não selecionada

Imprime registro no formato completo
Impact of simulated acid rain on soil microbial community function in Masson pine seedlings Electron. J. Biotechnol.
Wang,Lin; Chen,Zhan; Shang,He; Wang,Jing; Zhang,Peng-yan.
Background Accompanying its rapid economic development and population growth, China is the world's third largest acid rain region, following Europe and North America. The effects of acid rain on forest ecosystem were widely researched, including the growth, the nutrient of the leaf and soil, and so on. However, there are few reports about the effects of acid rain on the soil microbial diversity. This study investigated the effects of acid rain on soil microbial community function under potted Masson pine seedlings (Pinus massoniana Lamb). Results After 7 months of treatment with simulated acid rain, the low acid load treatment (pH 5.5) stimulated soil microbial activity, and increased soil microbial diversity and richness, while the higher levels of acid...
Tipo: Journal article Palavras-chave: Biolog; Metabolic capability; Soil microbial activity; Soil microbial diversity and richness.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000500002
Imagem não selecionada

Imprime registro no formato completo
Microbiological properties and oxidizable organic carbon fractions of an oxisol under coffee with split phosphorus applications and irrigation regimes. Repositório Alice
COSTA, A. R. da; SATO, J. H.; RAMOS, M. L. G.; FIGUEIREDO, C. C. DE; SOUZA, G. P. de; ROCHA, O. C.; GUERRA, A. F..
2013
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Ciclagem do Fósforo; Atividade microbiana do solo; Fosfatase ácida; Matéria orgânica do solo; Café; Irrigação; Phosphorus cycling; Soil microbial activity; Acid phosphatase; Soil organic matter; Coffee; Irrigation; Coffea arabica.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/959399
Imagem não selecionada

Imprime registro no formato completo
Microbiological properties and oxidizable organic carbon fractions of an oxisol under coffee with split phosphorus applications and irrigation regimes Rev. Bras. Ciênc. Solo
Costa,Adriana Rodolfo da; Sato,Juliana Hiromi; Ramos,Maria Lucrécia Gerosa; Figueiredo,Cícero Célio de; Souza,Géssica Pereira de; Rocha,Omar Cruz; Guerra,Antônio Fernando.
Phosphorus 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 P2O5, recommended for the crop year, of which two thirds were applied in September and the third part in December; P2: 600 kg ha-1 P2O5, applied at planting and then every two years, and P3: 1,800 kg ha-1 P2O5, the requirement for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: P cycling; Soil microbial activity; Acid phosphatase; Soil organic matter.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000100006
Imagem não selecionada

Imprime registro no formato completo
Physical, Chemical, and Microbiological Properties of Soil under Different Plant Covers in the Seridó Desertification Region in the Brazilian Semiarid Rev. Bras. Ciênc. Solo
Martins,Adriana Ferreira; Salcedo,Ignácio Hernan; Oliveira,Flávio Pereira de; Pereira,Walter Esfrain.
ABSTRACT The Seridó Desertification Region is a result of inadequate management of the native Caatinga vegetation, which generated degraded areas with little or no capacity for plant production. The area has experienced a succession of different land uses, but little is known about the impact of these changes. The present study tested the hypothesis that the intense degradation of the Caatinga drastically decreased vegetal biomass production, which favored direct soil exposure and resulted in a lower abundance and diversity of species and groups of vegetation as well as microorganisms. This study aimed to quantify some of the main physical, chemical, and microbiological properties of Alfisol ( Luvissolo Crômico órtico lítico ) and Entisol ( Neossolo...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil fertility; Soil structure; Soil microbial activity.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100510
Imagem não selecionada

Imprime registro no formato completo
Response of soil microbiota to nine-year application of swine manure and urea Ciência Rural
Morales,Diana; Vargas,Mónica Machado; Oliveira,Michele Pottes de; Taffe,Bruna Lunarde; Comin,Jucinei; Soares,Claudio Roberto; Lovato,Paulo.
ABSTRACT: Manure fertilization is a common practice, but little is known about its impacts on soil microbial activity and organic matter. Aiming to evaluate soil microbial response to nine years of successive applications of swine manure, organic carbon (TOC), total nitrogen (TN), pH, microbial biomass carbon (MBC), basal respiration (BR), metabolic quotient (qCO2), and enzyme (ß-glucosidase, phosphatase, arylsulphatase, and FDA) activities were measured in the 0-10cm soil layer, in a no-tillage system. Treatments were: control soil without fertilization (C), and application of two doses (104 and 209kg of N ha-1year-1) of urea (U1 and U2), pig slurry (PS1 and PS2) and deep litter (DL1 and DL2). TOC, TN, soil pH, MBC, and BR increased in soil fertilized...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil microbial activity; Nitrogen amendments; Soil quality..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000200260
Imagem não selecionada

Imprime registro no formato completo
Soil biochemistry and microbial activity in vineyards under conventional and organic management at Northeast Brazil Scientia Agricola
Freitas,Nicácio de Oliveira; Yano-Melo,Adriana Mayumi; Silva,Fábio Sérgio Barbosa da; Melo,Natoniel Franklin de; Maia,Leonor Costa.
The São Francisco Submedium Valley is located at the Brazilian semiarid region and is an important center for irrigated fruit growing. This region is responsible for 97% of the national exportation of table grapes, including seedless grapes. Based on the fact that organic fertilization can improve soil quality, we compared the effects of conventional and organic soil management on microbial activity and mycorrhization of seedless grape crops. We measured glomerospores number, most probable number (MPN) of propagules, richness of arbuscular mycorrhizal fungi (AMF) species, AMF root colonization, EE-BRSP production, carbon microbial biomass (C-MB), microbial respiration, fluorescein diacetate hydrolytic activity (FDA) and metabolic coefficient (qCO2). The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vitis vinifera L.; Arbuscular mycorrhizal fungi; Semiarid; Soil microbial activity; Sustainable agriculture.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000200013
Imagem não selecionada

Imprime registro no formato completo
Soil physical and microbiological attributes cultivated with the common bean under two management systems Rev. Ciênc. Agron.
Gennaro,Lorena Adriana De; Souza,Zigomar Menezes de; Weill,Mara de Andrade Marinho; Souza,Gustavo Soares de; Alves,Marlene Cristina.
Agricultural management systems can alter the physical and biological soil quality, interfering with crop development. The objective of this study was to evaluate the physical and microbiological attributes of a Red Latosol, and its relationship to the biometric parameters of the common bean (Phaseolus vulgaris), irrigated and grown under two management systems (conventional tillage and direct seeding), in Campinas in the state of São Paulo, Brazil. The experimental design was of randomised blocks, with a split-plot arrangement for the management system and soil depth, analysed during the 2006/7 and 2007/8 harvest seasons, with 4 replications. The soil physical and microbiological attributes were evaluated at depths of 0.00-0.05, 0.05-0.10, 0.10-0.20 and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil structure; Soil organic matter; Soil microbial activity; Direct seeding; Phaseolus vulgaris.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000400002
Registros recuperados: 8
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional