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Registros recuperados: 67
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Monitoramento comunitário da qualidade da água: uma ferramenta para a gestão participativa dos recursos hídricos no semi-árido. Repositório Alice
FIGUEIREDO, M. C. B. de; VIEIRA, V. de P. P. B.; MOTA, F. S. B.; ROSA, M. de F.; ARAÚJO, L. de F. P.; GIRAO, E. G.; DUCAN, B. L..
2008
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Participatory management; Community-based monitoring; Water quality; Semi-arid.
Ano: 2008 URL: http://www.alice.cnptia.embrapa.br/handle/doc/575324
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Morphophysiology of buffel grass grown under different water supplies in the dry and dry-rainy seasons AGRIAMBI
Maranhão,Samuel R.; Pompeu,Roberto C. F. F.; Souza,Henrique A. de; Araújo,Ricardo A. de; Fontinele,Renato G.; Cândido,Magno J. D..
ABSTRACT The lack of information on the growth of forage grasses in semi-arid environment, especially from the perspective of irrigation, is one of the obstacles to regular forage supply, as well as to the rational use of irrigation water. The objective with this study was to evaluate the leaf gas exchanges, biomass flow and structural characteristics of buffel grass cultivar Gayndah under different water supplies (30, 60, 90 and 120% of the reference evapotranspiration - ETo) during the dry season and dry-rainy season, in completely randomized design in a split-plot scheme with three repetitions. The experiment was conducted in Sobral, CE, Brazil (3° 45’ 00.77” S and 40° 20’ 38.55” W, altitude of 101 m) from September 2015 to January 2016. A higher...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pennisetum ciliare; Biomass flow; Irrigation depths; Semi-arid; Gas exchanges.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000800566
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Nutritional value of silk flower hay for lambs R. Bras. Zootec.
Silva,Aderbal Marcos de Azevêdo; Costa,Roberto Germano da; Pereira Filho,José Morais; Bakke,Ivonete Alves; Lôbo,Katiuscia Menezes da Silva; Lira Filho,Gerson Edmo; Nóbrega,Giovanna Henriques da.
It was evaluated four levels of silk flower (Calotropis procera S.W.) hay (SFH) as a substitute of sorghum (Sorghum bicolor) hay (SBH) in diet for lambs. Nutritional value of silk-flower hay was determined based on aparent digestibility and on metabolic, productive and economical performance of Santa Inês lambs. It was used twenty-four castrated males at 15.72 ± 1.92 kg body weight randomly distributed in four diets with silk-fklower and sorghum hay ratios (100:0, 66:33, 33:66, 0:100), and supplemented with a concentrate mixture based on 50% roughage:50% concentrate (weight/weight). Increase in the levels of silk-flower hay in the diet reduced weight gain and nutrient intake and it increased feed conversion and digestibility coeficients of all the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Calotropis procera (S.W.); Chemical composition; Roughage food; Semi-arid; Sheep; Weight gain.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001200026
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Orelha de Elefante Mexicans (Opuntia stricta [Haw.] Haw.) spineless cactus as an option in crossbred dairy cattle diet. Repositório Alice
R. C. SILVA; M. A. FERREIRA; J. C. V. OLIVEIRA; D. C. SANTOS; GAMA, M. A. S. da; J. C. C. CHAGAS; J. G. INÁCIO; E. T. S. SILVA; PEREIRA, L. G. R..
Abstract A new genotype of spineless cactus is being used in the diets of dairy cattle that are raised in semiarid regions. However, little is known about its nutritional value. This study aimed to evaluate the effects of replacing Miúda (Nopalea cochenillifera Salm Dyck) with Orelha de Elefante Mexicana (Opuntia stricta [Haw.] Haw.) spineless cactus, on nutrient intake and digestibility, milk yield and composition, feeding behaviour, microbial protein synthesis, nitrogen balance, and ruminal and blood parameters of dairy cows. Ten Girolando cows, 500 ± 51.6 kg bodyweight, were distributed in a double Latin square design 5 x 5. The treatments consisted of replacement levels of Miúda (MIU) by Orelha de Elefante Mexicana (OEM) at 0, 25, 50, 75, and 100%. The...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Alternative forage; Ruminal parameter; Semi-arid; Smallholder livestock system; Milk yield.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1102383
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Partitioning of rainfall into throughfall, stemflow, and interception loss in the Brazilian Northeastern Atlantic Forest AGRIAMBI
Ribeiro Filho,Jacques C.; Lemos Filho,Luis C. de A.; Santos,Julio C. N. dos; Brasil,José B.; Palácio,Helba A. de Q..
ABSTRACT Information on hydrology, and vegetation distribution is essential for the development of techniques and strategies to cope with droughts in semi-arid environments. The objective of this study was to evaluate the partitioning of gross rainfall into throughfall, stemflow, and interception loss in the Brazilian Northeastern Atlantic Forest, and its correlations with rainfall characteristics. The study was conducted in the Bica watershed, in Portalegre, state of Rio Grande do Norte, Brazil. The work was carried out in 2017, with monitoring of the throughfall, stemflow, and interception loss in an area ​​of 10 × 20 m. Total rainfall depths (TRD) and wind speed were measured, and the evapotranspiration (ET0) was estimated. Based on this information,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Caatinga; Hydrology; Semi-arid; Principal component analysis.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000100021
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Pastoreio de curta duracao com ovinos em caatinga raleada no sertao cearense. Repositório Alice
SILVA, N.L da; ARAUJO FILHO, J.A. de; SOUSA, F.B. de; ARAUJO, M.R.A. de.
A pesquisa foi conduzida em Sobral, Ceara, no periodo de janeiro de 1992 a julho de 1994 e objetivou determinar o desempenho produtivo de ovinos, producao de forragem e caracteristicas fitossociologicas do estrato herbaceo da caatinga raleada submetida a adubacao organica e pastoreio de curta duracao, com duas taxas de lotacao. Foram testadas as cargas de 3,3 (leve) e 10 cab/ha (pesada), com (5 t/ha de esterco de caprinos) e sem adubacao organica. Utilizou-se um delineamento inteiramente casualizado distribuido em um fatorial 2x2x3 (carga animal x adubacao x ano), com duas repeticoes. O pastejo de ovinos resultou no desaparecimento total das gramineas e no aumento das dicotiledoneas herbaceas no periodo estudado. A adubacao organica nao mostrou efeitos...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Adubacao; Carga animal; Ganho de peso; Semi-arido; Fertilization; Semi-arid; Stocking rate; Weight gain.
Ano: 1999 URL: http://www.alice.cnptia.embrapa.br/handle/doc/95245
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Pollen types used by Centris (Hemisiella) tarsata Smith (1874) (Hymenoptera, Apidae) in the provisioning of brood cells in an area of Caatinga Acta Botanica
Cruz,Ana Paula Araújo da; Dórea,Marcos da Costa; Lima,Luciene Cristina Lima e.
The aim of this study was to identify, by sediment pollen analysis, the plant species used as floral resources for the provisioning of brood cells in Centris (Hemisiella) tarsata, in an area of Caatinga, within the municipality of Nova Soure, Bahia State, Brazil. The analysis of pollen contents from three brood cells revealed 11 pollen types, corresponding to four botanical families. Malpighiaceae was represented most, followed by Leguminosae, Ochnaceae, and Solanaceae, the latter two represented by just a single pollen type each. On the basis of the percentages in the samples, it was possible to infer that C. tarsata visited distinct plants, but intensified its pollen collection in species related to Aeschynomene martii and Solanum paniculatumpollen...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Entomopalynology; Floral resources; Semi-arid; Solitary bees; Trap nests.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000200282
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Population dynamics and extracellular enzymes activity of mesophilic and thermophilic bacteria isolated from semi-arid soil of Northeastern Brazil BJM
Gorlach-Lira,Krystyna; Coutinho,Henrique D.M..
The dynamics of mesophilic and thermophilic bacterial population was studied in the bulk soil and rhizosphere of the grass Aristida adscensionis L. in a caatinga of the semi-arid Brazilian Northeast. Mesophilic heterotrophic bacteria, sporeforming bacteria and actinomycetes were significantly more abundant than thermophiles, and their counts were 10(6) - 10(7) CFU g-1 dry soil, showing weak fluctuations over the one-year study period. Thermophiles were below 10(6) CFU g-1 dry soil and, in general, demonstrated stronger fluctuations over the studied period. Among them, thermophilic actinomycetes showed the greatest decline during the dry season. No significant differences in microbial number were observed between bulk and rhizosphere soil. Mesophilic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mesophilic bacteria; Thermophilic bacteria; Actinomycetes; Extracellular enzymes; Semi-arid; Caatinga.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000100028
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Potential of Caatinga forage plants in ruminant feeding R. Bras. Zootec.
Santos,Mércia Virginia Ferreira dos; Lira,Mário de Andrade; Dubeux Junior,José Carlos Batista; Guim,Adriana; Mello,Alexandre Carneiro Leão de; Cunha,Márcio Vieira da.
Caatinga is the most important biome for the livestock in the Brazilian semi-arid region. This review paper aimed to present information on different forage aspects of caatinga vegetation for ruminant feeding. Caatinga vegetation is formed mainly by shrubs and small trees, usually presenting thorns, deciduous leaves, and leaf abscission occurring frequently at the onset of the dry season. Additional components of the botanical composition in this biome includes the families cactaceae, bromeliaceae, and a herbaceous component formed by grasses, legumes, and forbs, often presenting annual cycle. Quantitative information of caatinga vegetation is scarce in the literature, mainly for the herbaceous stratum. Methodological aspects such as lack of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chemical composition; Native plant; Quantitative aspect; Semi-arid.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001300023
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Potential of Sorghum and Finger Millet to Enhance Household Food Security in Zimbabwe's Semi-arid Regions: A Review AgEcon
Mukarumbwa, P.; Mushunje, Abbyssinia.
Successive droughts, in Zimbabwe compounded by other economic shocks in recent years have resulted in decreased maize productivity amongst the communal farmers most of whom reside in regions IV and V which are considered semi-arid. This has given rise to the need to find alternative food crops, which may be suitable for these areas. Generally, research in the world indicates that sorghum and millet have the potential to end chronic food insecurity in semi-arid areas because of their drought tolerance. Whilst this might be the case, research, government policy and assistance from non-governmental organizations on food crop production in Zimbabwe have shown a continual inclination to maize production in semi-arid areas. However, maize is regarded as a high...
Tipo: Journal Article Palavras-chave: Semi-arid; Sorghum; Finger millet; Small grains; Food security; Crop Production/Industries.
Ano: 2010 URL: http://purl.umn.edu/96430
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Production, characterization and application of inulinase from fungal endophyte CCMB 328 Anais da ABC (AABC)
Nascimento,Diego S.; Valasques Junior,Gildomar; Fernandes,Pedro; Ribeiro,Geise C.A.; Lima,Danyo M.; Góes-Neto,Aristóteles; Oliveira,Rodrigo Q.; Figueiredo-Ribeiro,Rita de Cassia L.; Assis,Sandra A. de.
Inulinase (β-2,1-D- fructan fructanohydrolase), EC 3.2.1.7, targets the β-2,1 linkage of inulin, a polyfructan consisting of linear β-2,1 linked fructose, and hydrolyzes it into fructose. This use provides an alternative to produce fructose syrup through the hydrolysis of inulin. The objective of this work was to study the production, characterization and applications of inulinases from the fungal endophyte CCMB 328 isolated from the Brazilian semi-arid region. Response Surface Methodology (RSM) was employed to evaluate the effect of variables (concentration of glucose and yeast extract), on secreted inulinase activities detected in the culture medium and also in the inulin hydrolysis. The results showed that the best conditions for inulinase production by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Inulin; Inulinase; Yeasts; Semi-arid; Fungal endophyte.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000200014
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Projeto Caatinga: uma esperanca para o semi-arido. Repositório Alice
GUIMARAES FILHO, C..
O sistema Caatinga-Buffel-Leucena para producao animal no semi-arido, bases do sistema CBL, componentes tecnicos do sistema, viabilidade economica, preservacao ambiental e areas potenciais para implantacao.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Sistema CBL; Buffel; Leucena; Viabilidade economica; Semi-arido; Projeto Caatinga; Lecaena; Economic viability; Semi-arid; Caatinga; Cenchrus ciliaris; Feno; Forragem; Leucaena Leucocephala; Produção Animal; Silagem; Valor Nutritivo; Animal production; Forage; Hay; Nutritive value; Silage.
Ano: 2000 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/134018
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Recursos genéticos e aproveitamento da biodiversidade do Semiárido brasileiro. Repositório Alice
OLIVEIRA, V. R. de; ARAUJO, F. P. de; DRUMOND, M. A.; MOREIRA, J. N.; KIILL, L. H. P.; RIBEIRO, M. de F.; SILVA, A. F.; SOUZA, A. V. de.
Experiências da Embrapa Semiárido com espécies nativas; espécies nativas de potencial frutífero; espécies florestais potenciais para produção madeireira; potencial da flora apícola e das abelhas nativas; recursos forreageiros nativos da caatinga.
Tipo: Capítulo em livro científico (ALICE) Palavras-chave: Biodiversidade; Espécie nativa; Abelha nativa; Fruticultura nativa; Vegetação nativa; Madeira; Umbu; Forrageira nativa; Caatinga; Planta nativa; Abelha; Ecologia; Ecossistema; Floresta; Planta medicinal; Planta lenhosa; Planta ornamental; Caatinga; Biodiversity; Genetic conservation; Semi-arid; Dry seasonal forests.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/861920
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Runoff inducement research for agriculture in very arid zones of Northeast Brazil. Repositório Alice
SHARMA, P. N.; ALONSO NETO, F.B.; PORTO, E. R.; SILVA, A. de S..
The concept of runoff inducement for agricultural purposes is discussed in detail. its implications to the Northeast Brazilian conditions and necessity for additional research is explained. An exaustive review of the research at various places in the world is included. The latest work being carried out at the Centro Nacional de Pesquisa do Tropico Semi-Arido (CPATSA/Embrapa) (Center of Agricultural Research for Semi-Arid Tropics) is explained in detail. This work included development of eight small watersheds varying in size from 1.0 ha. to 2.7 ha. for hydrologic evaluation of various simple low cost runoff inducement methods under natural "caating" conditions on shallow to medium deep Latossols. The various methods of runoff inducement include...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Agricultura; Solo; Agua; Manejo; Brasil; Nordeste; Regiao arida; Semi-arida; Agriculture; Soil; Water; Management; Brazil; Northeast; Semi-arid; Arid region; Solo; Soil.
Ano: 1984 URL: http://www.alice.cnptia.embrapa.br/handle/doc/133190
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Scrotal Circumference and Testicular Morphometric Characteristics of the Camel (Camelus Dromedarius) in the Semi-Arid Environment of Northern Nigeria International Journal of Morphology
Ali Abdullahi,Ibrahim; Al-Hassan Musa,Hassan; Jibril,Aliyu.
Reproductive tract of 12 camels (Camelus dromedarius) were used to evaluate testicular morphometry. The testicular morphometric characteristics measured were scrotal circumference (in situ), paired testis weight, epididymal weight and mean epididymal length, testis volume, and testis density. There were no significant difference (p &gt;0.05) between the left and right organs, but there were numerical differences between all the parameters. A highly significant positive correlations (p <0.05, p <0.01, p <0.001) exist between the scrotal circumference, testicular and epididymal morphometry, except for testis density which is non- significant (p &gt;0.05). It was concluded that testicular morphometry would provide reliable information in...
Tipo: Journal article Palavras-chave: Camels; Scrotal circumference; Testicular morphometry; Epididymis; Semi-arid.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000400019
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Seasonal variations in scorpion activities (Arachnida: Scorpiones) in an area of Caatinga vegetation in northeastern Brazil Rev. Bras. Zool.
Araújo,Cristiane S.; Candido,Denise M.; Araújo,Helder F. P. de; Dias,Sidclay C.; Vasconcellos,Alexandre.
Seasonal variations in scorpion activity were investigated during a 24 month period in an area of Caatinga (dryland) vegetation in the state of Paraíba, Brazil. The total number of scorpions captured was correlated with climatic variables and prey abundance. Scorpions were captured monthly using pitfall traps; their potential prey was captured using malaise, beating trays and pitfalls. A total of 104 scorpions were captured, representing four species: the bothriurids Bothriurus asper (Pocock, 1893) (n = 74; 71.2%) and B. rochai (Mello-Leitão, 1932) (n = 20; 19.2%), and the buthids Rhopalurus rochai (Borelli, 1910) (n = 4; 3.8%) and Tityus stigmurus (Thorell, 1876) (n = 1; 1.0%). The sex ratios (male:female) of the two most abundant species were 14:1 for B....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental factors; Neotropical region; Reproduction; Semi-arid; Seasonality.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000300008
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Silages of pearl millet submitted to nitrogen fertilization Ciência Rural
Pinho,Ricardo Martins Araujo; Santos,Edson Mauro; Campos,Fleming Sena; Ramos,João Paulo de Farias; Macedo,Carlos Henrique Oliveira; Bezerra,Higor Fábio Carvalho; Perazzo,Alexandre Fernandes.
This study aimed to evaluate the fermentation characteristics, losses and the chemical composition of two pearl millet genotypes silages submitted to nitrogen fertilization. The experimental design was a completely randomized blocks in a split plot scheme 2x5 (two nitrogen genotypes doses x five doses of nitrogen), with four replicates. Nitrogen doses were 0, 20, 40, 60, 80kg ha-1 and the pearl millet genotypes were the variety ADR300 and the hybrid ADR7010. The hybrid ADR 7010 showed average lactic acid content higher than the variety ADR 300, at all doses of N, recording values ranging from 4.09 to 10.46dag kg-1. There was an interaction between nitrogren doses and genotypes for the neutral detergent fiber, which ranged from 51.81 to 63.63dag kg-1 of dry...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chemical composition; Fermentation characteristics; Lactic acid; Semi-arid.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000500025
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Sistema de produção de leite de cabra no Semiárido Nordestino. Repositório Alice
GUIMARAES, V. P.; FACO, O.; BOMFIM, M. A. D.; OLIVEIRA, E. L. de.
2009
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Caprino; Leite de cabra; Sistema de produção; Brasil; Semi-árido; Nordeste; Goat; Production system; Brazil; Northeastern; Semi-arid.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/handle/doc/576099
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Soil attributes functionality and water eutrophication in the surrounding area of Itaparica Reservoir, Brazil AGRIAMBI
Araújo Filho,José C. de; Gunkel,Günter; Sobral,Maria C. M.; Kaupenjohann,Martin; Lopes,Helio L..
In semi-arid areas of Brazil, climate and geological conditions are important factors that restrict the availability of soils and water for sustainable irrigated agriculture. The main objective of this study was to evaluate functionalities of physical and chemical attributes of soils and to provide information about irrigation water quality in the margins of the Itaparica Reservoir aiming the sustainable land use. Available data of 44 representative soil profiles comprising 21 profiles of Arenosols, six of Ferralsols, five of Luvisols, six of Planosols and six of Cambisols were used. Water samples along the margins of the reservoir were analysed to obtain information on water quality. The results indicated a narrow relationship between the functionalities...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Jatobá Basin; Water pollution; Semi-arid.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662013000900014
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Soil physical attributes in chemigated banana plantation with wastewater REA
Alves,Pablo F. S.; Santos,Silvânio R.; Kondo,Marcos K.; Pegoraro,Rodinei F.; Araújo,Edcássio D..
ABSTRACT The feasibility of using sewage wastewater as a water and nutrient source for plants is an alternative to harness agricultural natural resource, observing its influence on the organic matter dynamics and soil energy. Our objective here was to evaluate the effects of applying different doses of effluent from a sewage treatment plant, in Janaúba – MG, Brazil, over the physical attributes of a soil grown with “Prata Anã” banana. From soil sample collection at depths of 0-20, 20-40, and 40-60 cm, we determined the following soil properties: soil density, total porosity, macroporosity, microporosity, organic matter, clay dispersed in water and stability of soil aggregate. The experimental design was in randomized blocks with four repetitions....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Musa spp; Agricultural reuse of effluents; Environmental sanitation; Semi-arid.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162015000600998
Registros recuperados: 67
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