Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 21
Primeira ... 12 ... Última
Imagem não selecionada

Imprime registro no formato completo
Accumulation of dry mass and macronutrients by sourgrass plants Planta Daninha
Carvalho,L.B.; Bianco,M.S.; Bianco,S..
The experiment was carried out aiming to analyze the dry mass production and distribution and the content and accumulation of macronutrients in sourgrass (Digitaria insularis) plants cultivated under mineral nutrition standard conditions. Plants grew in 7-liter pots filled with sand substrate and daily irrigated with nutrient solution, being maintained under greenhouse conditions. Treatments consisted of times of evaluation (21, 35, 49, 63, 77, 91, 105, 119, and 133 days after emergence - DAE) and were arranged in a completely randomized design with four replicates. Sourgrass showed small accumulation of dry mass (0.3 g per plant) and macronutrients (3.7 mg of N per plant, 0.4 mg of P per plant, 5.6 mg of K per plant, 0.9 mg of Ca per plant, 0.7 mg of Mg...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digitaria insularis; Plant growth; Mineral nutrition.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000400004
Imagem não selecionada

Imprime registro no formato completo
Adição simultânea de sulfato de amônio e ureia à calda de pulverização do herbicida glyphosate Planta Daninha
Carvalho,S.J.P.; Dias,A.C.R.; Shiomi,G.M.; Christoffoleti,P.J..
Dois experimentos foram desenvolvidos em casa de vegetação, com o objetivo de avaliar a eficácia do herbicida glyphosate sobre plantas de Digitaria insularis quando soluções de ureia (U; 5 g L-1), sulfato de amônio (SA; 15 g L-1) ou U+SA (2,5 + 7,5 g L-1) foram utilizadas como veículo de pulverização. Aos 28 dias após aplicação, de acordo com as curvas de dose-resposta (primeiro experimento), foram necessários 409 g ha-1 de glyphosate para atingir 50% de controle da planta daninha (C50) quando água sem adjuvantes foi usada como veículo de pulverização. Para obtenção dos mesmos 50% de controle, as doses de glyphosate foram reduzidas para 373, 208 e 189 g ha-1; quando o herbicida foi pulverizado utilizando solução de U, SA ou U+SA, respectivamente. A redução...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digitaria insularis; Curva dose-resposta; Dessecação; Nitrogênio.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582010000300014
Imagem não selecionada

Imprime registro no formato completo
Avaliacao de herbicidas aplicados em pre e pos emergencia sobre plantas daninhas ocorrentes na cultura da seringueira (Hevea spp.). Infoteca-e
LIMA, A. de A.; PEREIRA, R. C..
Em virtude do grande numero de herbicidas e misturas atualmente existentes no mercado, objetivou-se selecionar, preliminarmente, em condicoes de casa de vegetacao, herbicidas aplicados em pre e pos-emergencia em quatro especies de plantas daninhas predominantes na cultura da seringueira.
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Capim-acu-da-bahia; Digitaria insularis; Capim-papua; Capim-pe-de-galinha; Carrapicho-de-agulha; Brasil; Bahia; Rubber tree; Species; Treatment date; Herbicides evaluation.; Bidens Pilosa; Controle Químico; Emergência; Erva Daninha; Espécie; Herbicida; Hevea; Paspalum Conjugatum; Seringueira.; Eleusine indica; Chemical control; Weeds..
Ano: 1985 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665279
Imagem não selecionada

Imprime registro no formato completo
Biological Cycle of Susceptible and Glyphosate-Resistant Sourgrass Biotypes in Two Growth Periods Planta Daninha
FERREIRA,S.D.; EXTECKOETTER,V.; GIBBERT,A.M.; BARBOSA,J.A.; COSTA,N.V..
ABSTRACT: Selecting glyphosate-resistant Digitaria insularis may cause changes in the biological cycle of the species. Therefore, the objective of this study was to evaluate the biological cycle of susceptible and glyphosate-resistant D. insularis biotypes in two growth periods (summer/autumn and autumn/winter). Seeds were collected in the municipality of Alagoa Grande (07o02’59" S 35o37’01,5" W), and were considered susceptible (S1), in Cascavel (24o55’27" S 53o27’54.6 ”W) considered as resistant 1 (R1), Entre Rios do Oeste (24o40’44" S 54o17’05" W) considered as resistant 2 (R2) and Marechal Cândido Rondon (24o42’30" S 54o21’10" W) considered as resistant 3 (R3). Evaluations were carried out in the summer/autumn and autumn/winter periods. The collection...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digitaria insularis; Growth analysis; Weed; Chemical control.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100276
Imagem não selecionada

Imprime registro no formato completo
Chemical Control and Morphoanatomical Analysis of Leaves of Different Populations of Sourgrass Planta Daninha
GOMES,L.J.P.; SANTOS,J.I.; GASPARINO,E.C.; CORREIA,N.M..
ABSTRACT Digitaria insularis has been selected by frequent glyphosate applications both in no-till areas and in fruit orchards. The objective of this paper was to evaluate control efficacy of D. insularis populations by glyphosate, alone and mixed with quizalofop-p-tefuryl, as well as classify them for herbicide sensitivity as susceptible, moderately susceptible and tolerant. This study also aimed to evaluate the relations between herbicide sensitivity and morphoanatomic features of leaf tissues. For chemical control, the experiment was conducted in a completely randomized design, with a 12 x 4 factorial arrangement with four replications. Twelve populations of D. insularis were treated with glyphosate alone at two concentrations (1.44 and 2.16 kg a.e....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digitaria insularis; Glyphosate; Tolerance; Genetic variability.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100202
Imagem não selecionada

Imprime registro no formato completo
Efeito alelopático de sorgo-sacarino sobre o capim-amargoso. Infoteca-e
LINHARES, L. T.; MELO, T. S.; SILVA, L. B. X. da; CARRARO, T. V.; CORREIA, I. V. T.; MARQUES, R. F.; CONCENCO, G..
bitstream/item/136303/1/15-Larissa-efeito.pdf
Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Digitaria insularis.
Ano: 2015 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1032585
Imagem não selecionada

Imprime registro no formato completo
Efeitos de dessecantes no controle de plantas daninhas na cultura da soja Planta Daninha
Procópio,S.O.; Pires,F.R.; Menezes,C.C.E.; Barroso,A.L.L.; Moraes,R.V.; Silva,M.V.V.; Queiroz,R.G.; Carmo,M.L..
Este trabalho teve como objetivo avaliar a eficiência do glyphosate e da mistura comercial paraquat + diuron, bem como o efeito do intervalo entre as aplicações desses herbicidas e a semeadura da soja, sobre o controle e a rebrota de Digitaria insularis, Synedrellopsis grisebachii e Leptochloa filiformis. O experimento foi conduzido em área de soja em sistema de plantio direto, utilizando-se o delineamento de blocos casualizados com nove tratamentos e quatro repetições. Foram avaliados os seguintes tratamentos: glyphosate no dia da semeadura e um, dois e cinco dias antes desta; paraquat + diuron 20 dias antes e no dia da semeadura; glyphosate 10 dias antes da semeadura e paraquat + diuron no dia da semeadura; glyphosate 15 dias antes da semeadura e...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digitaria insularis; Synedrellopsis grisebachi; Leptochloa filiformis.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582006000100024
Imagem não selecionada

Imprime registro no formato completo
Effects of 2,4-D Herbicide on Species of the Digitaria Genus Planta Daninha
GAZOLA,T.; DIAS,M.F.; DIAS,R.C.; CARBONARI,C.A.; VELINI,E.D..
ABSTRACT: The objective of this work was to evaluate the effects of the 2,4-D herbicide on the growth and development of Digitaria insularis and Digitaria horizontalis plants under different climatic conditions. Two greenhouse experiments were conducted in a completely randomized design, with 11 treatments (rates of the herbicide) and four replications. Rate-response curves were determined for the 2,4-D rates of 0, 50.37, 100.75, 201.5, 403, 806, 1,612, 3,224, 6,448, 12,896, and 25,792 g a.i. ha-1. The plants presented growth stimulus with low rates of 2,4-D in the autumn-winter period, but this stimulus was not found in the spring-summer period. The plants subjected to application of high rates of 2,4-D had significantly lower growth and development than...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Synthetic auxin; Digitaria insularis; Digitaria horizontalis; Hormesis.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100173
Imagem não selecionada

Imprime registro no formato completo
EFFECTS OF ENVIRONMENTAL FACTORS ON SEED GERMINATION AND EMERGENCE OF GLYPHOSATE RESISTANT AND SUSCEPTIBLE SOURGRASS Planta Daninha
MARTINS,J.F.; BARROSO,A.A.M.; ALVES,P.L.C.A..
ABSTRACT Sourgrass is one of the most problematic weeds of Brazil. It is an aggressive species in the allocation of resources from the environment and reported to be glyphosate resistant in several states of the country. This work has aimed to verify environmental effects on seed germination and seedling emergence of sourgrass. Laboratory and field trials were conducted to determine the effects of temperature, light, photoperiod, water availability and depth of burial in germination and emergence of seeds. The maximum germination was greater than 80% for seed originated from resistant plants between 15 and 30 oC. For the susceptible ones, the maximum germination occurred only at 30 oC. Germination occurred for both biotypes independent of the presence of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digitaria insularis; Water availability; Photoperiod; Seeds; Temperature.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100243
Imagem não selecionada

Imprime registro no formato completo
Efficiency of Isolated and Associated Herbicides to Control Glyphosate-Resistant Sourgrass Planta Daninha
CASSOL,M.; MATTIUZZI,M.D.; ALBRECHT,A.J.P.; ALBRECHT,L.P.; BACCIN,L.C.; SOUZA,C.N.Z.
ABSTRACT: Sourgrass is one of the weeds of great economic importance in Brazil due to its difficulty of control and conditions that allow its emergence and development throughout the year. Thus, this study aimed to evaluate the effectiveness of clethodim and haloxyfop applied alone or mixed with glyphosate and other herbicides to control glyphosate-resistant sourgrass at different stages of development. For this, three experiments were conducted in the field: in experiment 1, the herbicides were applied in sourgrass plants with 6 to 8 tillers; and in experiments 2 and 3, when plants were at full flowering, with up to 18 tillers. After treatment application, visual evaluations were performed at 14, 21, 28, 35, 42, 49, and 56 days after application (DAA) in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digitaria insularis; Grass control; Clethodim; Haloxyfop.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100259
Imagem não selecionada

Imprime registro no formato completo
Estimating Yield Losses in Soybean Due to Sourgrass Interference Planta Daninha
GAZZIERO,D.L.P.; ADEGAS,F.S.; SILVA,A.F.; CONCENÇO,G..
ABSTRACT: Efficient management of sourgrass is one of the main challenges faced by Brazilian soybean farmers. Biological and ecological characteristics of this weed, as well as wide distribution of glyphosate-resistant biotypes, make it difficult to control this species. The objective of this work was to estimate interference of sourgrass in soybean yield. Seven experiments were conducted during three consecutive years (2012/2013, 2013/2014 and 2015/2016 cropping seasons); six of them were on-farm trials where sourgrass infestation was mainly originated from clump regrowth, while infestation originated from seeds in one trial. Data from all sites and experiments were submitted to a combined analysis, according to the study factors and variables, to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digitaria insularis; Perennial; Glyphosate-resistant weed; Glycine max.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100246
Imagem não selecionada

Imprime registro no formato completo
Glyphosate efficacy on sourgrass biotypes with suspected resistance collected in GR-crop fields Agronomy
Silveira, Hellen Martins da; Langaro, Ana Claudia; la Cruz, Ricardo Alcántara-de; Sediyama, Tocio; Silva, Antonio Alberto.
In Brazil, infestations of crop areas with glyphosate-resistant (GR) sourgrass (Digitaria insularis (L.) Fedde) biotypes has risen significantly, increasing crop production costs. Glyphosate efficacy on three biotypes (GO, BA and MT) of sourgrass with suspected resistance was evaluated. A susceptible biotype (MG) was used as the control. The results confirmed that the MG and GO biotypes were susceptible to glyphosate (control > 90%). The MG biotype exhibited growth reduction and mortality by 50% (GR50 and LD50, respectively) with mean glyphosate doses of 243.7 and 431.6 g ae ha-1. The resistance index of the biotypes with suspected resistance ranged from 2.8 to 6.1 in relation to GR50 and between 1.4 to 26.7 in relation to LD50. The glyphosate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Sciences chemical control; Digitaria insularis; Dose response; Resistance factor. Fitotecnia Fitotecnia.
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35120
Imagem não selecionada

Imprime registro no formato completo
Glyphosate efficacy on sourgrass biotypes with suspected resistance collected in GR-crop fields Agronomy
Silveira, Hellen Martins da; Langaro, Ana Claudia; la Cruz, Ricardo Alcántara-de; Sediyama, Tocio; Silva, Antonio Alberto.
In Brazil, infestations of crop areas with glyphosate-resistant (GR) sourgrass (Digitaria insularis (L.) Fedde) biotypes has risen significantly, increasing crop production costs. Glyphosate efficacy on three biotypes (GO, BA and MT) of sourgrass with suspected resistance was evaluated. A susceptible biotype (MG) was used as the control. The results confirmed that the MG and GO biotypes were susceptible to glyphosate (control > 90%). The MG biotype exhibited growth reduction and mortality by 50% (GR50 and LD50, respectively) with mean glyphosate doses of 243.7 and 431.6 g ae ha-1. The resistance index of the biotypes with suspected resistance ranged from 2.8 to 6.1 in relation to GR50 and between 1.4 to 26.7 in relation to LD50. The glyphosate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chemical control; Digitaria insularis; Dose response; Resistance factor.; Fitotecnia; Fitotecnia.
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35120
Imagem não selecionada

Imprime registro no formato completo
Glyphosate-Resistant Sourgrass Management Programs Associating Mowing and Herbicides Planta Daninha
RAIMONDI,R.T.; CONSTANTIN,J.; MENDES,R.R.; OLIVEIRA JR.,R.S.; RIOS,F.A..
ABSTRACT: Currently, sourgrass is one of the most important weeds in grain production areas in Brazil. The objective of this work was to evaluate the efficiency of associated systems composed by mowing and chemical control against clumped sourgrass. In the first experiment, different mowing heights (0, 5, 10, 15 and 20 cm), coupled with complementary applications of glyphosate + clethodim, were evaluated on sourgrass control. The second experiment was composed by programs starting with fallow mowing at different times, 50 (early), 35 (intermediate) and 20 (late) days before soybean sowing. After mowing, treatments were followed by herbicide applications according to the need until soybean harvest. The shorter the mowing height associated with herbicide...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digitaria insularis; Mechanical control; Soybean; Fallow.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100232
Imagem não selecionada

Imprime registro no formato completo
Growth and development of sourgrass based on days or thermal units Planta Daninha
Marques,B.S.; Silva,A.P.P.; Lima,R.S.O.; Machado,E.C.R.; Gonçalves,M.F.; Carvalho,S.J.P..
This work was carried out with the objective of evaluating growth and development of sourgrass (Digitaris insularis) based on days or thermal units (growing degree days - GDD). Two independent trials were developed aiming to quantify the species' phenological development and total dry matter accumulation in increasing or decreasing photoperiod conditions. Plants were grown in 4 L plastic pots, filled with commercial substrate, adequately fertilized. In each trial, nine growth evaluations were carried out, with three replicates. Phenological development of sourgrass was correctly fit to time scale in days or GDD, through linear equation of first degree. Sourgrass has slow initial growth, followed by exponential dry matter accumulation, in increasing...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digitaria insularis; Growing degree days; Phenology; Dry matter; Biology.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000300003
Imagem não selecionada

Imprime registro no formato completo
Growth and Development of Sourgrass Plants from Vegetative Parts of Clumps Planta Daninha
GAZOLA,T.; DIAS,M.F.; BONATTO,V.M.; BELAPART,D.; CARBONARI,C.A.; VELINI,E.D..
ABSTRACT: Sourgrass (Digitaria insularis) is a perennial plant with high infestation potential, has fast and aggressive development, and reproduces by seeds and rhizomes. D. insularis infestations have increased in agricultural areas without cover crops established between the main crop seasons. The control of this species has become one of the most expensive in these areas in Brazil. The present work evaluated the growth and development of D. insularis plants from different vegetative parts of clumps. Two greenhouse experiments were conducted in a completely randomized design, with four replications. A 5 × 4 factorial arrangement was used, with factor A corresponding to the different propagation methods, and factor B corresponding to the biotypes used...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digitaria insularis; Weeds; Resistance to herbicides.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100182
Imagem não selecionada

Imprime registro no formato completo
Interação entre herbicidas inibidores da accase e diferentes formulações de glyphosate no controle de capim-amargoso Planta Daninha
Barroso,A.A.M.; Albrecht,A.J.P.; Reis,F.C.; Filho,R.V..
O glyphosate é um herbicida não seletivo que inibe a produção de aminoácidos aromáticos essenciais à sobrevivência de plantas. Esse herbicida é disponibilizado no mercado em distintas formulações que podem apresentar diferenças no controle de espécies. A mistura de herbicidas é uma ferramenta importante no controle de plantas daninhas resistentes, sendo uma opção à mistura de inibidores da ACCase ao herbicida glyphosate. Este trabalho contou com a aplicação de diferentes misturas de quatro graminicidas e três formulações de glyphosate em dois estádios vegetativos de plantas de capim-amargoso resistente a esse herbicida. O controle químico foi avaliado por notas visuais de controle, aos 7, 14 e 28 dias após a aplicação, e pela medida de biomassa fresca das...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Graminicidas; Digitaria insularis; Associação de herbicidas.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000300018
Imagem não selecionada

Imprime registro no formato completo
Managing glyphosate-resistant weeds with cover crop associated with herbicide rotation and mixture Ciência e Agrotecnologia
Marochi,Aroldo; Ferreira,Antonio; Takano,Hudson Kagueyama; Oliveira Junior,Rubem Silvério; Ovejero,Ramiro Fernando Lopez.
ABSTRACT Herbicide resistance has become a major concern for agricultural systems, and integrating weed management practices seem to be the most promise way for its mitigation. The effects of cropping systems including ruzigrass (Urochloa ruziziensis) associated with herbicide rotation programs were evaluated for the management of glyphosate resistant conyza (Conyza sumatrensis) and sourgrass (Digitaria insularis) in soybean and corn production systems. A 3x3 factorial was evaluated in four consecutive soybean (spring-summer) and corn (fall-winter) double cropping seasons. Factor A consisted of three combinations of cropping systems in the fall-winter: corn, corn plus ruzigrass, and ruzigrass alone. Factor B was based on increasing levels of diversity in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digitaria insularis; Conyza sumatrensis; Integrated weed management; Urochloa ruziziensis; Herbicide resistance..
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000400381
Imagem não selecionada

Imprime registro no formato completo
Monitoring of Resistance of Sourgrass to Glyphosate Herbicide in Urban Areas of the State of São Paulo, Brazil Planta Daninha
GAZOLA,T.; DIAS,M.F.; CARBONARI,C.A.; VELINI,E.D..
ABSTRACT: The objective of this work was to monitor the resistance of sourgrass (Digitaria insularis) to glyphosate in urban areas of the State of São Paulo to understand the spread of resistant biotypes. Three experiments were conducted under greenhouse conditions in a completely randomized design, with four replications. In the first experiment, seven sourgrass biotypes were used, and the control of plants was evaluated at 7, 14, 21, 28, and 35 days after application (DAA) of glyphosate. In the second experiment, the shikimic acid accumulation was quantified at 72 hours after the glyphosate application, and the same evaluations of weed control were performed. In the third experiment, rate-response curves were developed, with glyphosate at rates of 0, 90,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Shikimic acid; Digitaria insularis; EPSPS; Resistance.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100183
Imagem não selecionada

Imprime registro no formato completo
Sourgrass densities affecting the initial growth and macronutrient content of coffee plants Planta Daninha
Carvalho,L.B; Alves,P.L.C.A; Bianco,S.
The objective of this work was to evaluate the coexistence effects of coffee (Coffea arabica) with densities of sourgrass (Digitaria insularis) on crop macronutrient content and plant growth. The experiment was conducted in plots where one coffee plant was maintained in coexistence with 0 (weed-free check), 1, 2, 4, 8, and 16 sourgrass plants, using a completely randomized design with three replicates. Reduction of coffee growth and macronutrient content, except P that increased, started when the coexistence occurred with sourgrass plants in a density of 1 plant per plot. In general, macronutrient content was reduced by 18-50%, while growth characteristics were reduced by 9-41%, when coffee plants coexisted with 16 plants of sourgrass. Thus, sourgrass...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coffea arabica; Digitaria insularis; Competition; Additive experiment; Nutrients.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000100012
Registros recuperados: 21
Primeira ... 12 ... 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