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Search Results: 1 - 10 of 80576 matches for " Nildo da Silva;Soares "
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Crescimento e Produ o de Flores de Girassol Irrigado com água Salobra
Kaline Dantas Travassos,Frederico Antonio Loureiro Soares,Hans Raj Gheyi,Nildo da Silva Dias
Revista Brasileira de Agricultura Irrigada , 2011, DOI: 10.7127/rbai.v5n200036
Abstract: Nos últimos anos, devido ao aumento de produ o de espécies ornamentais no Brasil e no mundo, o girassol também ganhou destaque como planta ornamental. Este trabalho teve como objetivo verificar os efeitos da salinidade da água de irriga o no crescimento e na produ o de flores do girassol (Helianthus annuus L., cv. Embrapa 122-V2000) através das variáveis diametro externo do capítulo, início do florescimento, dura o de pós colheita, número de pétalas no capítulo para fins ornamentais. Os tratamentos foram compostos de seis níveis de salinidade da água de irriga o (CEa ) de 0,5; 1,0; 2,0; 3,0; 4,0 e 5,0 dS m-1 à 25 oC, em delineamento inteiramente casualisado com 10 repeti es por tratamentos. O número de pétalas no capítulo diminuiu significativamente com o aumento da salinidade da água de irriga o, sendo as plantas irrigadas com água de baixa (0,5 dS m-1) e alta salinidade (5 dS m-1) apresentando 27,8 e 17,5 pétalas, respectivamente. O diametro externo médio do capítulo para as plantas irrigadas com água de baixa e alta salinidade foram de 17,5 e 14,3 cm, respectivamente. O decréscimo de fitomassa seca da parte aérea das plantas de girassol foi de 12,8% por aumento unitário da salinidade da água, confirmando a tolerancia do girassol à salinidade. é possível produzir flores de girassol com água de salinidade até CEa de 5,0 dS m-1 sem afetar qualidade comercial.
Doses de boro e água residuária na produ??o do girassol
Santos Junior, José Amilton;Gheyi, Hans Raj;Dias, Nildo da Silva;Soares, Frederico Ant?nio Loureiro;Nobre, Reginaldo Gomes;
Revista Ciência Agron?mica , 2011, DOI: 10.1590/S1806-66902011000400006
Abstract: the availability of water of quality has become worldwide, a major constraint to expanding agricultural frontiers. within this context, this study aimed to evaluate the effects of boron doses and irrigation with two types of water, wastewater and municipal supply water, on yield components of sunflower (helianthus annuus l.) cv. embrapa 122/v-2000. the study was conducted in a greenhouse at the federal university of campina grande, in a randomized block design, analyzed in a 5 x 2 factorial with five b of boron (0; 1.0; 2.0; 3.0 and 4.0 mg l-1) combined with two types of irrigation water (r - wastewater and ab - municipal supply water) with three replications. statistical analysis consisted of analysis of variance (f test) and means were compared by tukey test to compare qualitative factors at 0.05 probability. it was found that the boron levels and types of water did not affect any varieble related to production of seeds, however, irrigation with wastewater variables positively influenced the fresh and dry leaves, stem and shoot all related to forage production.
Produ??o de aquênio do girassol irrigado com água salobra
Travassos, Kaline D.;Soares, Frederico A. L.;Gheyi, Hans R.;Silva, Débora R. S.;Nascimento, Ana K. S. do;Dias, Nildo da S.;
Revista Brasileira de Engenharia Agrícola e Ambiental , 2011, DOI: 10.1590/S1415-43662011000400007
Abstract: the aim of this study was to determine yield components and achene production of sunflower (helianthus annuus l.) variety embrapa 122/v-2000 irrigated with water of different salinities in a greenhouse. the treatments consisted of six levels of salinity of irrigation water (ecw), n1 - 0.5, n2 - 1.0; n3 - 2.0; n4 - 3.0; n5 - 4.0 and n6 - 5.0 ds m-1 at 25 oc in a randomized design with five replications. the internal diameter of the chapter, number of seeds, weight of 100 seeds, the total mass of seeds, dry weight of shoot and root, ratio of dry weight of root and shoot, water consumption, electrical conductivity of drainage water and the saturation extract of soil. the total mass of seeds and number of seeds decreased 11.39 and 9.64%, respectively, with per unit increase in electrical conductivity of irrigation water, the root dry mass was more affected by salinity of irrigation water than dry mass of aerial parts, salinity levels of drainage water at the end of experiment were about 2.2 times of electrical conductivity of saturation extract.
Cultivo de girassol em sistema hidrop?nico sob diferentes níveis de salinidade
Santos Júnior, José Amilton;Gheyi, Hans Raj;Guedes Filho, Doroteu Honório;Dias, Nildo da Silva;Soares, Frederico Ant?nio Loureiro;
Revista Ciência Agron?mica , 2011, DOI: 10.1590/S1806-66902011000400004
Abstract: hydroponic systems have constituted an alternative for combating the adverse natural factors of agricultural production in the semi-arid regions of brazil, such as shallow rocky and infertile soils, and the scarcity of good quality water resources (high salt content). this work studied the yield of the sunflower (variety embrapa 122/v-2000) destined for achene and fodder (phytomass) production, grown hydroponically, using coconut fiber as substrate and irrigated with brackish water of varying salinities. the experimental layout used was completely randomized into a 5 x 2 factorial design with three replications, five levels of water salinity and two planting density - with one or two plants per pot being studied. the irrigation water was composed of 50% standard nutrient solution and 50% municipal water supply, with added levels of nacl, resulting in an eletrical conductivity (ecw) of 1.7; 4.3; 6.0; 9.0 and 11.5 ds m-1. the differential density of the sunflower plants positively affected the yield components of grain and biomass, showing greater viability when using two plants per pot.
Métodos para estimar radia??o solar na regi?o noroeste de Minas Gerais
Silva, Valdiney José da;Silva, Cláudio Ricardo da;Finzi, Rafael Resende;Dias, Nildo da Silva;
Ciência Rural , 2012, DOI: 10.1590/S0103-84782012000200015
Abstract: solar radiation is a component responsible for maintaining the life on the planet. despite its importance, solar radiation is not recorded in most conventional meteorological station since not all have equipments to measure it, and then, it is usual to use empirical solar radiation estimation methods. in order to test and calibrate models for estimating solar radiation data were collected from four meteorological stations belonging to the national institute of meteorology (inmet) to represent the climatic region northwest of minas gerais for the period from 2008 to 2010. based on these data, nine models to estimate global solar radiation were tested and calibrated. all the models use maximum and minimum air temperature as predictor and two of them also use rainfall. the most accurate models were de jong and stewart, bristow and campbell, donatelli and campbell and model of two hunt, with root mean square error about 3.1mj m-2 d-1 and determination coefficient around of 62%. however, all these models tended to have an overestimation for values of radiation below the average and an underestimation for values higher than the average. therefore there is need to propose new models that minimize this trend.
O caminho da terra: revisitando a história do MST no Pontal do Paranapanema - SP - desde uma ótica psicopolítica
Silva, Alessandro Soares da;
Psicologia em Estudo , 2010, DOI: 10.1590/S1413-73722010000100015
Abstract: this paper unveils the political psychology of the shapping of a collective memory in the mst - brazil's landless workers' movement in the western corner of the state of sao paulo in brazil, a region named pontal do paranapanema, known for its conflicts between landlords/large estate owners and landless rural workers. the paper results from an extensive review on the subject and highlights the underlying dinamics in the process of shapping/building the movement. not only does the paper/article tell one this history, but also enhances the voice of those men and women, so as to identify them as relevant political actors.
Ocorrência de Pseudocercospora fuligena em Tomateiro no Estado do Maranh o
Gilson Soares da Silva
Summa Phytopathologica , 2010, DOI: 10.1590/s0100-54052010000200014
Abstract:
Dissemina o de conhecimento: um estudo sobre o papel dos gatekeepers em uma organiza o bancária Resumo (Disserta o)
Irlene Soares da Silva
Informa??o & Informa??o , 2007, DOI: 10.5433/1981-8920.2007v12n0p
Abstract: SILVA, Irlene Soares da. Dissemina o de conhecimento: um estudo sobre o papel dosgatekeepers em uma organiza o bancária. 2007. 184f. Disserta o (Mestrado em Ciênciada Informa o) – Programa de Pós-Gradua o em Ciência da Informa o, Universidadede Brasília - UNB, Brasília, 2007.
Minera o e áreas de preserva o permanentes (APPs) em Santo Ant nio De Pádua – RJ / Mining and Environmental Permanent Preservation Areas (APPs) In Santo Ant nio De Pádua – RJ
Antonio Soares da Silva
Revista Sociedade & Natureza , 2011,
Abstract: Município de Santo Ant nio de Pádua tem na atividade de minera o uma das suas principais atividades econ micas. Entretanto a lavra dos minérios promove uma série de impactos ambientais, além do fato de que algumas mineradoras estarem localizadas em áreas de Preserva o Permanente (APP). O trabalho teve como objetivo mapear as APPs no município de Santo Ant nio de Pádua e identificar as mineradoras que operam nestes ambientes. Para o mapeamento das APPs foi utilizado o software ArcGis da Esri, fotografias aéreas na escala de 1:10.000 e base topográfica da Funda o IBGE na escala de 1:50.000. Para defini o das APPs foram utilizados os conceitos apresentados nas resolu es 302 e 303, ambas de 2002, do Conama. Foram mapeadas as APPs de Topo de Morro e Montanha, Linha de Cumeada, Encosta com declividade superior a 45°, Nascentes e Faixa Marginal de Corpos Hídricos. As APPs ocupam uma área de 212,288 km2 o que corresponde a 34,782% da área do município. Foram encontrados 31 empreendimentos de extra o e/ou beneficiamento mineral operando em APPs. As características das jazidas, localizadas nos trechos mais elevados dos principais alinhamentos serranos, tornam este ambiente mais favorável a extra o mineral. A localiza o de empresas junto aos corpos hídricos e, consequentemente, em APP deve-se a grande utiliza o de água durante o corte das pedras. Finalmente sugere-se uma revis o da largura das APPs de Faixa Marginal de Prote o de Corpos Hídricos (FMP) de 30 metros, pois em áreas de relevo dissecado protege-se uma área maior que a necessária. Além disso, há a necessidade de estabelecer formas de minera o que n o causem um impacto muito grande, principalmente nas APPs de Nascentes.
Sistematiza??o da Assistência de Enfermagem ao portador de Diabetes Mellitus e Insuficiência Renal Cr?nica
Mascarenhas, Nildo Batista;Pereira, álvaro;Silva, Rudval Souza da;Silva, Mary Gomes da;
Revista Brasileira de Enfermagem , 2011, DOI: 10.1590/S0034-71672011000100031
Abstract: this is a clinical case study developed during the practical activities of the discipline surgical clinical nursing i, of course of graduation in nursing of a public university of bahia state, that aimed to report the application of the systematization of nursing assistance in the assistance to a client whit diabetes mellitus and chronic renal insufficiency. with the development of the study, especially after the positive improvement of the client, face to assistance planned and implemented and considering the reflections that emerged, it was possible to evidence the need for interface between systamatization of nursing assistance, the nursing staff and client in the care process, at the excellence and uniqueness of nursing care
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