Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 15
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Adsorção de metais pesados após calagem superficial em um Latossolo Vermelho sob sistema de plantio direto Rev. Ciênc. Agron.
Joris,Helio Antonio Wood; Fonseca,Adriel Ferreira da; Asami,Valter Yassuo; Briedis,Cléver; Borszowskei,Paulo Rogério; Garbuio,Fernando José.
A influência da correção da acidez do solo sob sistema plantio direto (SPD) na adsorção de metais pesados é pouco conhecida. Este trabalho teve o objetivo de avaliar a adsorção de cádmio (Cd), níquel (Ni), cobre (Cu) e zinco (Zn) em um Latossolo Vermelho distrófico textura argilosa sem e com calagem superficial (4,5 t ha-1 de calcário), manejado no SPD. O experimento foi instalado em 1998, no município de Ponta Grossa, PR. Após 10 anos, amostras de solo foram coletadas nas camadas 0-5; 5-10 e 10-20 cm e foram adicionadas doses crescentes de 0 a 180 mg L-1 de Cd e Ni e de 0 a 180 mg L-1 de Cu e Zn, em sistemas competitivos. Após equilíbrio, foi determinada a quantidade de metais adsorvidos. A calagem superficial no SPD aumentou o pH do solo em todas as...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acidez do solo; Adsorção; Latossolo vermelho.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902012000100001
Imagem não selecionada

Imprime registro no formato completo
Agricultural use of treated sewage effluents: agronomic and environmental implications and perspectives for Brazil Scientia Agricola
Fonseca,Adriel Ferreira da; Herpin,Uwe; Paula,Alessandra Monteiro de; Victória,Reynaldo Luiz; Melfi,Adolpho José.
In many studies worldwide the use of treated sewage effluents (TSE) as water and nutrient sources in agricultural irrigation have been introduced as a viable alternative for wastewater destination in the environment. Considering agronomic and environmental aspects the objectives of this review were: (i) to present an overview of TSE irrigation on different agro-systems (annual crops, orchards, forests and forages); and (ii) to show the principal changes on chemical, physical and microbiological soil characteristics after TSE application. Various studies have revealed that the nutrient supply only by TSE irrigation was not sufficient to meet plant nutrient requirements resulting in yield decreases. The problem could be solved by an adapted...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Wastewater; Water reuse; Nutrient source; Agriculture; Environmental impact.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000200014
Imagem não selecionada

Imprime registro no formato completo
Availability of phosphorus for maize in crop-livestock integration system Rev. Ciênc. Agron.
Galetto,Shivelly Los; Fonseca,Adriel Ferreira da; Harkatin,Silvano; Auler,André Carlos; Carvalho,Igor Quirrenbach de.
The objectives of this study were to assess the concentrations of available phosphorus (P) extracted using the Mehlich-1 (M1), ion exchange resin (IER) and modified Morgan (MM) methods after 36 months of experimentation with the application of phosphates in a crop-livestock integration system (CLIS). Moreover, this study aimed to assess which extraction method provides the best correlation of P concentrations with the maize crop attributes. The treatments consisted of applying annual doses of P2O5 on the soil surface of the total area during the sowing of winter forage crops in the form of triple superphosphate (TSP), rock phosphate (RP) or magnesium thermophosphate (MTP). After 36 months of experimentation, soil samples were collected from the 0-5, 5-10,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Mehlich-1; Ion exchange resin; Modified Morgan.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000500011
Imagem não selecionada

Imprime registro no formato completo
Cation exchange capacity of an oxisol amended with an effluent from domestic sewage treatment Scientia Agricola
Fonseca,Adriel Ferreira da; Alleoni,Luís Reynaldo Ferracciú; Melfi,Adolpho José; Montes,Célia Regina.
The addition of Na-rich anthropogenic residues to tropical soils has stimulated the scientific community to study the role of sodium in both the soil solution and the exchange complex. In this study, several different methods were used to calculate the concentration of exchangeable and soluble cations and this data was then used to establish correlations between the level of these cations and both the accumulation of various elements and the dry weight of maize grown in a greenhouse under different conditions. In the closed environments of the pots, the most suitable method for calculating the effective cation exchange capacity (ECEC) was the cation exchange capacity calculated by cations removed with barium chloride solution (CEC S). Then again, the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Exchangeable cations; Soil solution; Soil with variable charge; Treated sewage effluent; Maize.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000600007
Imagem não selecionada

Imprime registro no formato completo
Chemical and physical soil attributes in integrated crop-livestock system under no-tillage Rev. Ciênc. Agron.
Silva,Hernani Alves da; Moraes,Anibal de; Carvalho,Paulo César de Faccio; Fonseca,Adriel Ferreira da; Caires,Eduardo Fávero; Dias,Carlos Tadeu dos Santos.
Although integrated crop-livestock system (ICLS) under no-tillage (NT) is an attractive practice for intensify agricultural production, little regional information is available on the effects of animal grazing and trampling, particularly dairy heifers, on the soil chemical and physical attributes. The objective of this study was to evaluate the effects of animal grazing on the chemical and physical attributes of the soil after 21 months of ICLS under NT in a succession of annual winter pastures (2008), soybeans (2008/2009), annual winter pastures (2009), and maize (2009/10). The experiment was performed in the municipality of Castro (PR) in a dystrophic Humic Rhodic Hapludox with a clay texture. The treatments included a combination of two pasture (annual...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tropical soil; Integrated production system; Conservationist agricultural; Soil acidity.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000500010
Imagem não selecionada

Imprime registro no formato completo
Extraction methods and availability of micronutrients for wheat under a no-till system with a surface application of lime Scientia Agricola
Fonseca,Adriel Ferreira da; Caires,Eduardo Fávero; Barth,Gabriel.
Micronutrient availability can be affected by the increase of the soil pH due to surface liming. A field trial was carried out on a loamy, kaolinitic, thermic Typic Hapludox at Ponta Grossa, Paraná State, Brazil. The main objective was to evaluate the effects of surface liming and re-liming on the availability of micronutrients [copper (Cu), iron (Fe), manganese (Mn), and zinc (Zn)] for wheat (Triticum aestivum L.) cropped under a no-till system. A randomized complete block design was used in a split-plot arrangement. The main plots received surface lime applications (2, 4, and 6 Mg ha-1) in July 1993. In the subplots, surface lime (3 Mg ha-1) was applied again in June 2000. In 2003, before the wheat sowing, soil samples were taken at 0-5, 5-10, and 10-20...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Triticum aestivum L; Soil acidity; Dolomitic lime; Multinutrient extractants; Soil with variable charge.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000100009
Imagem não selecionada

Imprime registro no formato completo
Grain crops and forage yield resulting from the use of phosphates in integrated production system Rev. Ciênc. Agron.
Galetto,Shivelly Los; Fonseca,Adriel Ferreira da; Harkatin,Silvano; Reifur,Hendrik Ivan; Carvalho,Igor Quirrenbach de.
The aim of this study was to assess the effects of the sources and levels of surface-applied (broadcast) phosphorus (P) when sowing the winter annual forages on phosphorus accumulation and yields of maize, soybean, black oat and annual ryegrass crops in a crop-livestock integration system over three years. The experiment was established in April 2009, in the municipality of Castro, Parana, Brazil. The treatments consisted of the broadcast application when sowing the winter forages of four doses (0, 60, 120 and 180 kg ha-1 year-1) of total P2O5 as triple superphosphate (TSP), rock phosphate (RP-Arad) and magnesium termophosphate (MTP). The dry matter yields of black oat (2009 and 2011), annual ryegrass (2010), maize (2009/10 and 2011/12) and soybean...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L; Glycine max (L.) Merril; Black oat; Annual ryegrass; Crop-livestock integration.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000500009
Imagem não selecionada

Imprime registro no formato completo
Maize and soybeans production in integrated system under no-tillage with different pasture combinations and animal categories Rev. Ciênc. Agron.
Silva,Hernani Alves da; Moraes,Anibal de; Carvalho,Paulo César de Faccio; Fonseca,Adriel Ferreira da; Dias,Carlos Tadeu dos Santos.
The adoption of no-till system (NTS) combined with crop-livestock integration (CLI) has been a strategy promoted in Brazil, aiming to maximize areas yield and increase agribusiness profitability. This study aimed to evaluate grains yield and phytotechnical attributes from maize and soybean culture by CLI system under NTS after winter annual pure and diversified pastures with the absence or presence of grazing animals. The experiment was installed in Castro (Paraná State, Brazil) on in a dystrophic Humic Rhodic Hapludox with a clay texture, using experimental design of randomized complete blocks in 4 x 2 factorial scheme with three replications. Treatments included four pasture combinations (diversified or pure) and animal categories (light and heavy)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L; Glycine max (L.); Merrill; Crop-livestock system integration; Conservationist agriculture.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902012000400018
Imagem não selecionada

Imprime registro no formato completo
Minerals consumption by Acetobacter xylinum on cultivation medium on coconut water BJM
Almeida,Denise Milleo; Prestes,Rosilene Aparecida; Fonseca,Adriel Ferreira da; Woiciechowski,Adenise L.; Wosiacki,Gilvan.
The objective of this work is to verifying the consume of the minerals K, Na, Fe, Mg, P, S-SO4-2,B,N Total Kjedahl (NTK), NO3--N, and NH4+-N in the production of bacterial cellulose by Acetobacter xylinum, according to the medium and the manner of cultivation. The fermentative process was in ripe and green coconut water. K and Na were determined by flame emission photometry, Mg and Fe by atomic absorption spectrophotometry, P by molecular absorption spectrophotometry, S-SO4-2 by barium sulphate turbidimetry, B by Azomethin-H method, NTK by Kjeldahl method, N-NO3-and N-NH4+ by vapor distillation with magnesium oxide and Devarda's alloy, respectively. In Fermentation of ripe coconut water there were higher consumption of K (69%), Fe (84,3%), P (97,4%),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Minerals; Bacterial cellulose; Acetobacter xylinum.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000100030
Imagem não selecionada

Imprime registro no formato completo
Nitrogen forms, pH and total carbon in a soil incubated with treated sewage effluent BABT
Fonseca,Adriel Ferreira da; Herpin,Uwe; Dias,Carlos Tadeu dos Santos; Melfi,Adolpho José.
In this study, an experiment under controlled conditions was carried out to determine the effects of secondary-treated sewage effluent (STSE) application on soil nitrogen concentrations (mineral and total), total carbon and soil pH. The soil and STSE used were collected at Lins, São Paulo State, Brazil. A completely randomized design was used, in completed factorial 4x11 (weekly application rates of 0, 100, 150 and 200 mL STSE per kg soil; and, eleven soil incubation periods from 0 to 10 weeks) with four replicates. The STSE was applied simulating common surface irrigation. Seven days after each incubation period, ammonium and nitrate contents were determined. Additionally, pH and total carbon and nitrogen contents were measured in the soil after 10 weeks....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Treated sewage effluent; Nitrogen; Carbon; Tropical soil.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000500001
Imagem não selecionada

Imprime registro no formato completo
Phosphorus use in soybean in integrated production system under anticipation of phosphate fertilization Rev. Ciênc. Agron.
Guera,Keli Cristina Silva; Fonseca,Adriel Ferreira da; Harkatin,Silvano.
ABSTRACT Conservation agriculture practices, such as integrated crop-livestock system (ICLS), can result in efficiency of phosphorus use and, economic and environmental benefits. The higher nutrient cycling, deposited crop and animal residues in the soil surface can promote the maintenance of soil fertility. Thus, the anticipated of phosphate fertilization may be a viable strategy of fertilization for soybean crop, in this system. The objective of this work was to determine the yield, accumulation of P and phosphorus use efficiency (PUE) on the dry biomass and grains of the soybean crop, in an integrated crop-livestock system (ICLS) due to anticipated fertilization of sources and doses phosphates annually applied in the soil surface. The experiment was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anticipated fertilization; Sustainable intensification; Glycine max (L.) Merr.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000300404
Imagem não selecionada

Imprime registro no formato completo
Soil physico-hydrical properties resulting from the management in Integrated Production Systems Rev. Ciênc. Agron.
Auler,André Carlos; Miara,Simone; Pires,Luiz Fernando; Fonseca,Adriel Ferreira da; Barth,Gabriel.
Anthropic action, such as the soil use and management systems, promote changes in the soil structure. These changes might hamper the development of plants in soil management practices that involve its mobilization, and the negative effects might be increased due to intensive use. The aim of this study was to evaluate the physico-hydrical properties of a Haplohumox in integrated production systems under different soil managements. The soil superficial (0.0-0.10 m) and sub-superficial (0.10-0.20 m) layers were evaluated in the different systems: conventional tillage (CT), minimum tillage (MT), no-tillage (NT) and chiseled no-tillage (CNT), taking into consideration the annual ryegrass cropped for different uses [cover crop (C), grazing (G) and silage (S)]...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Haplohumox; No-tillage; Soil physical quality; Crop-livestock integration; Agriculture sustainability.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000500013
Imagem não selecionada

Imprime registro no formato completo
Soil structural quality degradation by the increase in grazing intensity in integrated crop-livestock system Bragantia
Auler,André Carlos; Galetto,Shivelly Los; Hennipman,Fabrício Siqueira; Guntzel,Eduardo Daniel; Giarola,Neyde Fabíola; Fonseca,Adriel Ferreira da.
ABSTRACT The intensification of soil use, as in integrated croplivestock system (ICLS), might promote soil structural degradation. A field method to evaluate the soil structural quality is the Visual Evaluation of Soil Structure (VESS). Studies on the application of this method to ICLS are few. This work aimed to evaluate the structural quality of a Dystrudept under ICLS and different grazing intensities through VESS. Thus, the soil structure was evaluated in light grazing (LG) and heavy grazing (HG) in comparison to a neighboring native forest (NF) as reference area. After the grazing period, 10 trenches were dug in each area to collect soil monoliths. The identification of structural differences and the attribution of visual scores were carried out...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cattle trampling; Soil compaction; Visual Evaluation of Soil Structure.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000400550
Imagem não selecionada

Imprime registro no formato completo
Viabilidade econômica da produção de novilhas leiteiras a pasto em sistema de integração lavoura-pecuária PAB
Silva,Hernani Alves da; Moraes,Anibal de; Carvalho,Paulo César de Faccio; Fonseca,Adriel Ferreira da; Guimarães,Vânia Di Addario; Monteiro,Alda Lúcia Gomes; Lang,Claudete Reisdorfer.
O objetivo deste trabalho foi avaliar a rentabilidade do sistema de integração lavoura-pecuária (ILP), em comparação ao cultivo de cereais de inverno e de plantas de cobertura para o plantio direto de soja e milho no verão. Foram comparados dados simulados de sistema agrícola tradicional com produção de grãos de milho e soja, no verão, e cultivo de trigo e plantas de cobertura do solo, no inverno; e dados de um trabalho publicado em que foram avaliadas combinações de pastagens (diversificadas ou puras) e categorias de animais (leves ou pesados), com produção de grãos de milho e soja, no verão, e pastejo no inverno. A análise econômica foi realizada com base nos resultados experimentais e simulada para uma propriedade de 100 ha. A ILP com recria de novilhas...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultura conservacionista; Análise econômica; Pastagens anuais de inverno; Recria de novilhas; Sistema integrado de produção.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000600003
Imagem não selecionada

Imprime registro no formato completo
Water type and irrigation time effects on microbial metabolism of a soil cultivated with Bermuda-grass Tifton 85 BABT
Nogueira,Sandra Furlan; Paula,Alessandra Monteiro de; Pereira,Bruno Fernando Faria; Salemi,Luiz Felippe; Fonseca,Adriel Ferreira da; Montes,Célia Regina; Victoria,Reynaldo Luiz.
This study investigated the microbial metabolism in Bermuda-grass Tifton 85 areas after potable-water and effluent irrigation treatments. The experiment was carried out in Lins/SP with samples taken in the rainy and dry seasons (2006) after one year and three years of irrigation management, and set up on an entirely randomized block design with four treatments: C (control, without irrigation or fertilization), PW (potable water + 520 kg of N ha-1 year-1); TE3 and TE0 (treated effluent + 520 kg of N ha-1 year-1) for three years and one year, respectively. The parameters determined were: microbial biomass carbon, microbial activity, and metabolic quotient. Irrigation with wastewater after three years indicated no alteration in soil quality for C and ET3; for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Reuse; Irrigated agriculture; Microbial respiration; Cmic; QCO2.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000300007
Registros recuperados: 15
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