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Search Results: 1 - 10 of 69025 matches for " Silvio José Bicudo "
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Diagnose foliar em plantas de milho em sistema de semeadura direta em fun o de doses e épocas de aplica o de nitrogênio
Flávia Meinicke Nascimento,Silvio José Bicudo,Dirceu Maximino Fernandes,José Guilherme Lan?a Rodrigues
Pesquisa Aplicada & Agrotecnologia , 2012, DOI: 10.5777/paet.v5.n1.04
Abstract: O objetivo da pesquisa foi avaliar a resposta da cultura do milho em sucess o à culturas de inverno, havendo a antecipa o da aplica o do nitrogênio na cultura da aveia, em doses crescentes, no SPD. O experimento foi conduzido na FCA/UNESP, Campus de Botucatu-SP. O delineamento experimental foi de blocos ao acaso com quatro repeti es, em parcelas subdivididas, sendo consideradas parcelas as doses de nitrogênio aplicadas na cultura da aveia: 0, 20, 40 e 60 kg ha-1 e as doses de nitrogênio aplicadas em cobertura na cultura do milho, foram consideradas subparcelas, variando nas seguintes doses: 60, 80, 100 e 120 kg ha-1, aplicados de forma parcelada em dois estádios da cultura do milho. A diagnose foliar foi feita no estádio de florescimento e após a colheita foi calculada a produtividade. Os resultados indicam que a aplica o antecipada de N na cultura do milho é dependente da cultura antecessora e que as doses e épocas destas aplica es influíram nas concentra es dos nutrientes, refletindo na produtividade do milho. El objetivo de esta investigación fue evaluar la respuesta del maíz en sucesión con cultivos de invierno, con la anticipación de la aplicación de nitrógeno en la avena, en dosis crecientes, en el sistema de siembra directa SSD. El experimento se realizó en la FCA / UNESP, Campus de Botucatu-SP. El dise o experimental fue en bloques al azar con cuatro repeticiones, en parcelas subdivididas, siendo consideradas parcelas las dosis de nitrógeno aplicadas en la avena: 0, 20, 40 y 60 kg ha-1 y las dosis de nitrógeno aplicadas en cobertura en el cultivo de maíz, fueron consideradas subparcelas, variando en: 60 kg, 80, 100 y 120 ha-1, aplicadas de manera parcelada en dos momentos de crecimiento del maíz. El análisis foliar se realizó durante la floración y después de la cosecha se calculó la productividad. Los resultados indican que la aplicación temprana de N en el maíz depende de la cosecha anterior y que las dosis y tiempos de estas aplicaciones han influido en las concentraciones de nutrientes, reflejando en la productividad del maíz.
Consórcio de milho e Brachiaria decumbens em diferentes preparos de solo = Maize and Brachiaria decumbens under different soil tillage in farmingpasture integration
Simério Carlos Silva Cruz,Francisco Rafael da Silva Pereira,Silvio José Bicudo,José Roberto Santos
Acta Scientiarum : Agronomy , 2009,
Abstract: Preparos conservacionistas e sistemas de produ o que visam à maximiza o sustentável do uso do solo e da água têm surgido como alternativas para regi es caracterizadas por períodos chuvosos relativamente curtos e temperaturas elevadas. O objetivo deste trabalho foi avaliar o sistema de consorcia o entre milho e Brachiaria decumbens que melhor se adapte às condi es dafoclimáticas da regi o da Zona da Mata do Estado de Alagoas. Os tratamentos consistiram de um híbrido de milho BRS3150, cultivado nos sistemas: Preparo Convencional, Cultivo Mínimo e Semeadura Direta (BRS3150consorciado com Brachiaria decumbens). O delineamento utilizado foi o de blocos casualisados com parcelas subdivididas. Amostras de solo foram coletadas para análise química. Também foram avaliados os componentes da produ o e produtividade de gr os de milho. Os diferentes preparos do solo e a presen a de Brachiaria decumbens, no sistema de consócio com milho, n o exerceram influência sobre os componentes da produ o. Os resultados analisados permitem concluir que a presen a da Brachiaria decumbens interferiu negativamente na produtividade dos gr os de milho, quando cultivado em sistema deconsórcio, e as maiores produtividades foram obtidas nos sistemas conservacionistas. Conservation tillage and production systems that aim to maximize soiland water use in a sustainable form have become alternatives for regions that have relatively short periods of rain and high temperatures. The objective of this research was to evaluate intercropping systems with maize and Brachiaria that have better adaptation to the edaphoclimatic conditions of the “Zona da Mata” region, state of Alagoas. The treatments consisted of a BRS 3150 hybrid of maize, cultivated in the following systems: Conventional Cropping, Minimum Cultivation and No-tillage (BRS 3150 intercropped with Brachiaria decumbens). The design used was randomized block with subdivided plots. Soil samples were collected for chemical analysis.Production components and grain yield were also evaluated. The different soil managements and the use of Brachiaria decumbens in an intercropping system with maize did not affect production components. The result analysis allowed the conclusion that the use of Brachiaria decumbens had a negative influence on maize yield when cultivated in an intercropping system, with the higher yield obtained in conservations systems.
épocas de poda e produtividade da mandioca
Aguiar, Eduardo Barreto;Bicudo, Silvio José;Curcelli, Felipe;Figueiredo, Priscila Gonzales;Cruz, Simério Carlos Silva;
Pesquisa Agropecuária Brasileira , 2011, DOI: 10.1590/S0100-204X2011001100007
Abstract: the objective of this work was to assess different pruning dates on the development, production and quality of cassava roots. two experiments were carried out in two regions of the state of s?o paulo, brazil: botucatu, on clay soil, and s?o manuel, on sandy soil. the experiments were carried out from september 2008 to june 2010, and harvest was done after two growing seasons (22 months). the experimental design was a randomized block design, with four replicates. ten treatments, nine monthly pruning dates, between april and december, and a control cultivated without pruning were evaluated. pruning dates were statistically analyzed by orthogonal contrasts, in comparison to the control, and by regression. cassava pruning during the rest period does not alter dry matter content and root yield. however, when performed at the end of the first cycle or after the start of the second cycle, pruning reduces dry matter content and root yield.
Atributos químicos do solo e produtividade do milho afetados por corretivos e manejo do solo
Santos, José R.;Bicudo, Silvio J.;Nakagawa, Jo?o;Albuquerque, Abel W. de;Cardoso, Celso L.;
Revista Brasileira de Engenharia Agrícola e Ambiental , 2006, DOI: 10.1590/S1415-43662006000200011
Abstract: a field experiment was carried out in the lageado experimental farm belonging to the s?o paulo state university - unesp, campus of botucatu, sp, in a distrophic nitosoil in 1997/98. the objective was to compare the effects of magnesium termophosphate; termophosphate + lime; termophosphate + phosphogypsum + sugarcane vinnace application on the chemical characteristics of the soil and on the corn (zea mays l.) yield cultivated in no-tillage and conventional tillage systems. the crotalaria juncea was cultivated as mulch-producing to make possible the establishment of the tillage systems. the mean modifications in the soil fertility were due to aplication of the magnesium termophosphate. the differences between the two tillage systems, related to crop productivity, were associated to the smaller n content in the corn leaf in the no-tillage system.
Qualidade fisiológica de sementes de milho tratadas com molibdênio Physiological quality of corn seeds treated with molybdenum
Francisco Rafael da Silva Pereira,Elizeu Luiz Brachtvogel,Simério Carlos Silva Cruz,Silvio José Bicudo
Revista Brasileira de Sementes , 2012, DOI: 10.1590/s0101-31222012000300012
Abstract: O tratamento de sementes com micronutrientes, como o molibdênio, garante uma maior uniformidade de aplica o, sendo que, a quantidade a ser aplicada desse elemento nas sementes deve ser suficiente para provir à exigência para o desenvolvimento e produ o da cultura. Assim, objetivou-se com o presente trabalho avaliar a qualidade fisiológica de sementes de milho tratadas com molibdênio. A qualidade das sementes foi avaliada por meio da determina o do teor de água, do teste de germina o, da primeira contagem de germina o e da emiss o de raízes primárias. Os tratamentos testados consistiram de cinco híbridos (DOW CO32; DOW 2B587; DOW 2B688; PIONEER 30F35 e PIONEER 30K73) e cinco doses de molibdênio aplicadas via semente (0; 7,5; 22,5; 67,5; 202,5 g ha-1 de molibdênio). A fonte de molibdênio utilizada foi o molibdato de sódio dihidratado (39% de molibdênio), sendo que a aplica o do molibdênio foi efetuada por meio da mistura com o fungicida líquido de suspens o concentrada carboxina+thiram sobre as sementes. A qualidade fisiológica das sementes de milho é influenciada negativamente por doses crescentes de molibdênio aplicadas. O híbrido de milho DOW 2B587 obteve melhor resposta à aplica o da maior dose de molibdênio em rela o aos demais híbridos estudados. Seed treatment with micronutrients, such as molybdenum, ensures a greater uniformity of application. The amount of this element to be applied to seeds must be sufficient for crop development and production. The objective of the present study was to evaluate the physiological quality of corn seeds treated with molybdenum. Seed quality was evaluated by determining the water content, and from the germination test, the first count test and primary root emission. The treatments consisted of five hybrids (DOW CO32; DOW 2B587; DOW 2B688; Pioneer 30F35 and Pioneer 30K73) and five levels of molybdenum applied to the seeds (0; 7.5; 22.5; 67.5; 202.5 g ha-1 of molybdenum). The source of molydenum was sodium molybdate dyhidrate (39% of molybdenum) and the application was made by mixing with the liquid suspension of a carboxim+thiram fungicide on the seeds. The physiological quality of the corn seeds is adversely affected by increasing levels of molybdenum. The DOW 2B587 corn hybrid gave the best response to the application of the highest level of molybdenum compared to the other genotypes studied.
Nutri o do milho e da Brachiaria decumbens cultivados em consórcio em diferentes preparos do solo = Nutricional analysis of maize and Brachiaria decumbens cultivated in intercropping system in different soil tillages
Simério Carlos Silva Cruz,Francisco Rafael da Silva Pereira,Silvio José Bicudo,Abel Washington de Albuquerque
Acta Scientiarum : Agronomy , 2008,
Abstract: O objetivo deste trabalho foi avaliar sistemas de consorcia o entre milho e Brachiaria decumbens e seus efeitos sobre a nutri o mineral das culturas. O experimento foi conduzido no ano agrícola de 2005, na área Experimental do Campus Delza Gitaí, pertencente ao CECA-UFAL. Os tratamentos consistiram do cultivo de um híbrido de milho BRS 3150, nos sistemas: Preparo Convencional do Solo, Cultivo Mínimo eSemeadura Direta (BRS 3150 em consórcio com Brachiaria decumbens). O experimento obedeceu ao esquema de blocos casualisados com parcelas subdivididas em quatro repeti es. Durante o período de florescimento da cultura do milho, foram coletadas folhas da base da espiga para análise nutricional. Foram realizadas coletas de material vegetal daBrachiaria decumbens em quatro épocas para determina o de massa seca; para análise nutricional, utilizou-se material vegetal proveniente da terceira coleta. P de-se observar que a presen a da Brachiaria decumbens n o interferiu na nutri o mineral da cultura do milho; o efeito residual da aduba o realizada para cultura do milho beneficiou a Brachiaria decumbens, elevando seu valor nutritivo; a Brachiaria decumbens teve seu crescimento limitado, quandocultivada em consórcio, devido ao efeito do sombreamento proporcionado pela cultura do milho. The objective of this research was to evaluate intercropping systems with maize and Brachiaria decumbens and your effects on thecultures mineral nutrition. The experiment was conducted in 2005, in the experimental area of “Campus Delza Gitaí” belonging to the “CECA - UFAL”. The treatments consisted of a BRS 3150 hybrid of maize, cultivated in the systems: Conventional Cropping, Minimum Cultivation and No-tillage (BRS 3150 intercropped with Brachiaria decumbens),the randomized block design was used, with subdivided splots and four replications. During maize flowering period leaves from the ear basis were collected for nutritional analysis. Samples of Brachiaria decumbens to evaluate dry matter accumulation were collected in fourdifferent times, the third collection of plant matter was used for nutritional analysis. The results analysis allowed concluding that the use of Brachiaria decumbens did not influence in maize mineral nutrition; the residual effect of fertilizer applied to maize favoured the Brachiaria decumbens increaseing your nutritive value; the Brachiaria decumbens had your growth limited when it was cultivated in intercropping due the shading effect occasionedfor maize.
Nutri??o do milho e da Brachiaria decumbens cultivados em consórcio em diferentes preparos do solo
Cruz, Simério Carlos Silva;Pereira, Francisco Rafael da Silva;Bicudo, Silvio José;Albuquerque, Abel Washington de;Santos, José Roberto;Machado, Carla Gomes;
Acta Scientiarum. Agronomy , 2008, DOI: 10.4025/actasciagron.v30i5.5975
Abstract: the objective of this research was to evaluate intercropping systems with maize and brachiaria decumbens and your effects on the cultures mineral nutrition. the experiment was conducted in 2005, in the experimental area of "campus delza gitaí" belonging to the "ceca - ufal". the treatments consisted of a brs 3150 hybrid of maize, cultivated in the systems: conventional cropping, minimum cultivation and no-tillage (brs 3150 intercropped with brachiaria decumbens), the randomized block design was used, with subdivided splots and four replications. during maize flowering period leaves from the ear basis were collected for nutritional analysis. samples of brachiaria decumbens to evaluate dry matter accumulation were collected in four different times, the third collection of plant matter was used for nutritional analysis. the results analysis allowed concluding that the use of brachiaria decumbens did not influence in maize mineral nutrition; the residual effect of fertilizer applied to maize favoured the brachiaria decumbens increaseing your nutritive value; the brachiaria decumbens had your growth limited when it was cultivated in intercropping due the shading effect occasioned for maize.
Consórcio de milho e Brachiaria decumbens em diferentes preparos de solo
Cruz, Simério Carlos Silva;Pereira, Francisco Rafael da Silva;Bicudo, Silvio José;Santos, José Roberto;Albuquerque, Abel Washington de;Machado, Carla Gomes;
Acta Scientiarum. Agronomy , 2009, DOI: 10.4025/actasciagron.v31i4.915
Abstract: conservation tillage and production systems that aim to maximize soil and water use in a sustainable form have become alternatives for regions that have relatively short periods of rain and high temperatures. the objective of this research was to evaluate intercropping systems with maize and brachiaria that have better adaptation to the edaphoclimatic conditions of the “zona da mata” region, state of alagoas. the treatments consisted of a brs 3150 hybrid of maize, cultivated in the following systems: conventional cropping, minimum cultivation and no-tillage (brs 3150 intercropped with brachiaria decumbens). the design used was randomized block with subdivided plots. soil samples were collected for chemical analysis. production components and grain yield were also evaluated. the different soil managements and the use of brachiaria decumbens in an intercropping system with maize did not affect production components. the result analysis allowed the conclusion that the use of brachiaria decumbens had a negative influence on maize yield when cultivated in an intercropping system, with the higher yield obtained in conservations systems.
Estudo psicossocial de um seminário teológico: a forma??o do clero católico em análise
Benelli, Silvio José;
Estudos de Psicologia (Natal) , 2008, DOI: 10.1590/S1413-294X2008000300003
Abstract: this article introduces preliminary data and debates from a social psychology inquiry about the production of ecclesiastical subjectivity. by taken institutional analysis as a theoretical tool, we study the seminary as a pedagogical device. our field research is at a catholic theological seminary, where 50 seminarians live in boarding system, at the final stage of preparation to the priesthood; once ordained, the new priests will be in relevant position to coordinate extended parish communities. data were obtained by means of observation of the institutional daily life. some preliminary conclusions are presented. we have found deep contradictions between official discourses and daily practices at the theological seminary.
EL MATRIMONIO NACE... EL MATRIMONIO MUERE... DOS POSICIONES DE CARA AL FRACASO CONYUGAL O MATRIMóNIO NASCE... O MATRIMóNIO MORE... DUAS POSI ES DE CARA AO FRACASSO CONJUGAL MARRIAGE IS BORN... MARRIAGE DIES... TWO PERSPECTIVES IN THE FACE OF MARITAL FAILURE
José Silvio Botero Giraldo
Theologica Xaveriana , 2012,
Abstract: La reflexión sobre "El matrimonio nace... el matrimonio muere... " surgió de una confrontación entre la visión de Benedicto XVI y la postura de un diario italiano (Il Corriere della Sera) respecto del matrimonio. La Iglesia Católica mira al matrimonio en el momento de su nacimiento; el Estado civil lo mira en su momento final. La Iglesia Católica ha estado tradicionalmente departe de la indisolubilidad del matrimonio, mientras que el derecho civil, en general, mira a la posibilidad del divorcio. Al intentar hoy resolver el conflicto, se presentan algunas alternativas nuevas que miran a la posibilidad de conciliar el derecho con la pastoral, especialmente en lo que respecta a la indisolubilidad del matrimonio. A reflex o sobre "O matrimónio nasce... o matrimónio more... " surgiu de uma confronta o entre a vis o do papa Bento 16 e a postura de um diário italiano (II Corriere delia Sera) com respeito ao matrimónio. A Igreja Católica ver o matimónio no momento do seu nascimento; o Estado civil ver no seu momento final. A Igreja Católica ha estado tradicionalmente do lado da indissolubilidade do matrimónio, enquanto que o direito civil, ede modo geral, ver a possibilidade do dovórcio. Hoje, ao tentar resolver o conflito, apresentam-se algumas alternativas novas que veem a possibilidade de conciliar o direito com a pastoral, especialmente no que se refere a indisolubilidade do matrimónio. The reflection behind "Marriage is born...Marriage dies... " came up from the confrontation between Benedict XVI's view of marriage and that of an Italian newspaper (II Corriere della Sera). The Catholic Church focuses on the moment in which marriage is born; the State focuses on its final moment. Traditionally, the Catholic Church has promoted the indissolubility of marriage, while civil law, in general, considers the possibility of divorce. When trying nowadays to settle this conflict, some new alternatives are proposed. These regard the possibility of reconcile law and pastoral, especially when it comes to marriage indissolubility.
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