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| Registros recuperados: 45 | |
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| Sá,Mariangela Facco de; Gonçalves,Ricardo Aymay; Marder,Cristiana; Baldissera,Matheus Dellamea; Oliveira,Camila Belmonte de; Noll,Jessica Caroline Gomes; Silva,Filipe; Monteiro,Silvia Gonzalez. |
| ABSTRACT: Liquid pig manure (LPM) is widely used as a compost fertilizer for vegetable crops destined for human consumption. However, these wastes may contain parasites eggs, such as the nematode Ascaris suum, that pose serious health risks to humans. We attempted to determine the most appropriate technique for recovering A. suum eggs from LPM compost. Samples were collected from two waste sources during composting, including 23 samples containing LPM, sawdust, and wood shavings, and 14 samples of LPM alone-both in triplicate. Samples were analyzed using several different recovery methods. Recovery of eggs by the modified Bailenger method with adaptations was significantly more effective and recovered 57% more eggs than by the modified Bailenger method... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Helminth eggs; Organic decomposition; Residues; Parasites. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000400502 |
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| Khaliq,Abdul; Matloob,Amar; Ata Cheema,Zahid; Farooq,Muhammad. |
| Weed suppression is one of the several benefits achieved by soil incorporation of crop residues and such suppression is believed to be allelopathic in nature. The allelopathic potential of different crop residues: viz. sorghum (Sorghum bicolor [L.] Moench), sunflower (Helianthus annuus L.), brassica (Brassica campestris L.) was evaluated in rice (Oryza sativa L.) and jungle rice (Echinochloa colona [L.] Link). Chopped crop residues were soil-incorporated alone and mixed at 6 g kg-1 soil (12 t ha-1) and compared with a control without residues. Soil incorporation of residues substantially delayed germination of jungle rice. The time to start germination, time to 50% emergence, mean emergence time, emergence index, and final germination percentage were all... |
| Tipo: Journal article |
Palavras-chave: Residues; Allelopathy; Sorghum; Sunflower; Brassica; Weed control. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000300012 |
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| ZOHAIB,A.; TABASSUM,T.; ANJUM,S.A.; ABBAS,T.; NAZIR,U.. |
| ABSTRACT: Weeds associated with crops may impose their phytotoxic effects on crop plants through the release of their allelochemicals and hence seriously reduce crop productivity. The present study was conducted to investigate the allelopathic effect of water soluble phenolics of weeds associated with wheat crop (Vicia sativa, Trigonella polycerata, Lathyrus aphaca, Medicago polymorpha, Melilotus indica) on germinability and biomass production of wheat seedlings by using their water extracts at 2.5% (w/v) and 5% (w/v) concentrations and residues of the same weeds with 0, 15 and 30 d decomposition periods at 2% (w/w) concentration. The results showed that the water extracts of M. indica and V. sativa at 5% concentration imposed the most inhibitory effect on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Wheat; Weed allelopathy; Water extracts; Residues; Germination; Biomass production. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100287 |
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| Ali,H.H.; Tanveer,A.; Nadeem,M.A.; Javaid,M.M.; Kashif,M.S.; Chadhar,A.R.. |
| Experiments were conducted to evaluate the allelopathic influence of Rhynchosia capitata on germination and seedling growth of mungbean (Vigna radiate) along with identification of the phytotoxic substances responsible for this activity. Water extracts of root, shoot, leaf, fruit and whole plant were prepared by soaking them in water in a ratio of 1:20 (w/v) for 24 h. All the extracts affected germination and seedling growth of mungbean, but higher inhibition was seen with R. capitata leaf water extracts. A linear decrease in the germination characteristics of mungbean was observed with the decrease in the concentration of leaf extract from 5% to 1%. The soil-incorporated residues (1-4% w/w) of R. capitata stimulated the growth of root and hypocotyl at low... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phytotoxic; Phenolic; Allelopathy; Residues; Concentration; Water extracts. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000300002 |
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| Serquiz,Alexandre Coelho; Serquiz,Raphael Paschoal; Peixoto,Thayane Kerbele Oliveira das Neves; Santos,Elizeu Antunes dos; Rocha,Hugo Alexandre Oliveira. |
| ABSTRACT The benefits of various foods, such as fruits and vegetables, have been the focus of several studies aimed at improving welfare, health, and reducing the incidence of diseases. Therefore, the present paper objectified to investigate the presence of molecules of biotechnological and pharmacological interest in peel, seed, and pulp of Annona x atemoya Mabb. Aqueous extracts of the fruit parts were obtained with different buffers and assessed as to their protein and phenolic compounds content. The three parts of the fruit presented different proportions of these compounds when subject to different extraction conditions, with the highest concentrations of proteins being found in the seed and phenolic compounds in the peel of the studied fruit.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Annona x atemoya; Residues; Protease inhibitors; Lectins. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000100101 |
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| Oliveira,Débora C. G. de; Rodrigues,Michelle S.; Santos,Sérgio F. dos; Savastano Junior,Holmer. |
| The deep bedding is a swine alternative production, especially in the finishing phase, whose byproduct can be recycled, reducing the environmental impact. The objectives of this study were to characterize the ash coming from the controlled burning of the swine deep bedding (SDBA) based on rice husk, and to evaluate their performance in composites as a partial substitute for Portland cement (PC). To measure the differences between SDBA and rice husk ash (RHA) as a reference, we have characterized: particle size distribution, real specific density, x-ray diffraction, electrical conductivity, scanning electron microscopy, chemical analysis and loss on ignition. Samples were prepared for two experimental series: control, and another one with the partial... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Composite; Rural construction; Residues; Swine production; Sustainability. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000500001 |
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| Vieira,Manoela Alano; Podestá,Rossana; Tramonte,Karina Cardoso; Amboni,Renata Dias de Mello Castanho; Simas,Karina Nunes de; Avancini,Sandra Regina Paulon; Amante,Edna Regina. |
| Residues from King palm (Archontophoenix alexandrae) processing were used for the production of flours, which were then chemically characterized. The protein content in these flours ranged from 3.62 to 9.75 g/100g and was higher in sifted leaf flour (SLF). The dietary fiber contents varied from 64 to 72 g/100g. These values were high when compared to those of flours used in human nutrition. Analysis of anti-nutritional factors showed phytate contents to be below the levels that affected the bioavailability of minerals in human diet. Tannin contents were compatible with those found in legumes, between 0 and 2000 mg/100g. These flours showed high mineral content, which suggested a possibility for them to be used as food supplement. However, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Archontophoenix alexandrae; Residues; Flour; Chemical analysis. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400021 |
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| Kobashigawa, Estela; Murarolli, Rafael Azevedo; Gameiro, Augusto Hauber. |
| Em decorrência do contínuo crescimento da avicultura no Brasil, tanto de corte quanto de postura, ocorre concomitantemente um aumento de alojamento de matrizes e, portanto, dos resíduos formados pela incubação de ovos férteis. Em contrapartida no Estado de São Paulo criou-se, recentemente, a Lei no 12.300, de 16 de março de 2006, obrigando os incubatórios a dar um destino adequado aos seus resíduos. Devido ao custo de manejo dos resíduos, tem-se a oportunidade de se estudar novas alternativas, que possam eventualmente agregar valor ao produto, possibilitando sua comercialização. Objetivou-se neste estudo analisar quais os destinos dados aos resíduos de incubatórios no Estado de São Paulo. Um grupo de cinco empresas representativas foi entrevistado.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Avicultura; Resíduos; Meio ambiente; Poultry; Residues; Environment; Livestock Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/108969 |
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| Tzaskos,Danilla Fernanda; Marcovicz,Crislaine; Dias,Nivea Maria Piccolomini; Rosso,Neiva Deliberali. |
| Glyphosate is a systemic, post-emergent, non-selective herbicide widely used in agriculture. The objective of this study was to develop a method for sample preparation, to partially purified natural water samples contaminated with residues of glyphosate, and to quantify them by derivation and spectroscopically. To assess the accuracy of the method, samples of water from an artesian well and from a stream were fortified with known amounts of glyphosate. The concentration of glyphosate was determined using a standard curve concentration range from 4 to 14 mg L-1. From the concentration of glyphosate recovered, in both samples of fortified water it was found that DOWEX MWA-1 resin and NaCl 0.100 mol L-1 eluent were effective in the purification of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Residues; Spectroscopic studies; Systemic herbicide. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000400003 |
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| SOUZA, H. A. de; VIEIRA, L. V.; PRIMO, A. A.; MELO, M. D.; FEITOSA, T. S.; SOUZA, I. M. de; PEREIRA, G. de A. C.; GUEDES, F. L.; POMPEU, R. C. F. F.; NATALE, W.. |
| Tipo: Folhetos |
Palavras-chave: Fertilization; Residues; Abattoir byproducts; Composto orgânico; Fertilizante nitrogenado; Compostagem; Resíduo orgânico; Caprino; Ovino; Abate; Compound fertilizers; Organic fertilizers; Goats; Sheep. |
| Ano: 2015 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1018324 |
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| Chocobar Guerra, Eneyda Andrea. |
| Los organismos del suelo contribuyen en la formación y los cambios de la estructura física del suelo e influyen en la dinámica de los nutrientes por sus efectos sobre la inmovilización y humificación de la materia orgánica. Por lo anterior, es importante estudiar la edafofauna en sistemas de larga duración (15 años) porque repercute de manera directa en el rendimiento de los cultivos y en el mejoramiento del suelo. Estas cualidades además pueden ser empleadas para crear indicadores biológicos de calidad del suelo, con el objeto de potenciar manejos agrícolas con tendencias sustentables. La investigación se enfocó en clasificar (grupo taxonómico), cuantificar (Nº individuos m-2) medir biomasa (gramos m-2) y evaluar la variación poblacional de la edafofauna... |
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Palavras-chave: Indicadores biológicos; Labranza; Rotación; Residuos; Biological indicator; Tillage; Crop rotation; Residues; Maestría; Edafología. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/317 |
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| Khaliq,A.; Matloob,A.; Farooq,M.; Mushtaq,M.N.; Khan,M.B.. |
| Soil incorporation of crop residues can lead to weed suppression by posing allelopathic and physical effects. Allelopathic potential of the crops sorghum, sunflower, brassica applied as sole or in combination for horse purslane (Trianthema portulacastrum) suppression was evaluated in a pot investigation. Chopped crop residues alone and in combination were incorporated at 6 g kg-1 soil (12 t ha-1), and a weedy check was maintained. Germination traits time to start germination; time to 50% emergence, mean emergence time, emergence index and final germination percentage were negatively influenced by residue incorporation. Crop residues also exerted a pronounced negative influence on the shoot and root length of horse purslane. Significant suppression in leaf... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Residues; Allelopathic; Sorghum; Sunflower; Brassica; Trianthema portulacastrum; Germination/seedling growth; Suppression. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582011000100014 |
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| Elmes,Claudia A; Bustamante,Ociel H; González,Fernando G; Larraín,Rafael E; Gandarillas,Mónica. |
| The aim of the study was to evaluate the effects of adding ractopamine (RAC) and amino acids (AA) to the diet on growth performance, carcass characteristics, commercial cuts yield, meat quality and residues in liver and muscle. Ninety-two crossbred castrated pigs (97.96 ± 2.32 kg) were randomly assigned to one of two dietary treatments: a Control diet with 0 mg kg-1 of RAC and a RAC+AA diet with 10 mg RAC kg-1, for the last 27 days. Pigs of RAC+AA group had greater average daily gain (ADG), gain to feed ratio (G:F) and final bodyweight (P≤0.05) and tended to have lower average daily feed intake (ADFI) (p=0.084) than Control pigs. Carcasses from RAC+AA animals were heavier than controls (P≤0.05). Dressing percentage and backfat depth... |
| Tipo: Journal article |
Palavras-chave: Carcass measurements; Finishing pigs; Meat cuts; Meat quality; Ractopamine; Residues. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202014000300002 |
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| Registros recuperados: 45 | |
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