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| Registros recuperados: 15 | |
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| Souza,Henrique Antunes de; Melo,Maria Diana; Primo,Anacláudia Alves; Vieira,Lucas Vasconcelos; Pompeu,Roberto Cláudio Fernandes Franco; Guedes,Fernando Lisboa; Natale,William. |
| ABSTRACT Composting is a useful way of transforming livestock waste into organic fertilizer, which is proven to increase soil nutrient levels, and thus crop yield. Remains from production and slaughter of small ruminants can become a source of important elements for plant growth, such as N, after microorganism-driven decomposition.The aim of this investigation was to evaluate the effects of this compost on soil fertility and on the nutritional status and yield of the corn crop. The experiment was conducted in a Haplic Luvisol in a randomized block design with six treatments and five application rates of the organic compound in Mg ha-1: 3 (half the standard rate), 6 (standard rate), 9 (one and a half times the standard rate), 12 (twice the standard rate),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Organic fertilizer; Goats; Sheep. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100544 |
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| Lopes,Marcos Neves; Pompeu,Roberto Cláudio Fernandes Franco; Cândido,Magno José Duarte; Lacerda,Claudivan Feitosa de; Silva,Rodrigo Gregório da; Fernandes,Francisco Ronaldo Belem. |
| This study aimed to evaluate the growth index of massai grass during two regrowth cycles in a greenhouse under five levels of nitrogen (0, 150, 300, 450 and 600 mg N/dm³ of soil) and eight growth ages (5, 8, 11, 14, 17, 20, 23 and 26 days) in a split-plot design with five replications. The following variables were evaluated: net assimilation rate, herbage growth rate, relative growth rate, leaf area ratio, leaf weight ratio and specific leaf area. The effect of nitrogen was detected on the variables net assimilation rate (regrowths 1 and 2), leaf area ratio (regrowth 1), leaf weight ratio (regrowths 1 and 2), specific leaf area (regrowths 1 and 2) and herbage growth rate (regrowths 1 and 2). The growth ages influenced the relative growth rate (regrowth 2)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herbage growth; Net assimilation rate; Nitrogen fertilizer; Panicum maximum × Panicum infestum. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001200008 |
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| Pompeu,Roberto Cláudio Fernandes Franco; Cândido,Magno José Duarte; Neiva,José Neuman Miranda; Rogério,Marcos Cláudio Pinheiro; Facó,Olivardo. |
| Avaliaram-se as características estruturais do capim-tanzânia pastejado por ovinos sob lotação rotativa com quatro níveis de suplementação concentrada (NS) (0,0; 0,6; 1,2 e 1,8% PV), em delineamento de parcelas subdivididas, em que as parcelas foram os níveis de suplementação e os ciclos de pastejo (CP), as subparcelas, com quatro repetições. Estimaram-se as produções de massa seca de forragem total (MSFT), forragem morta (MSFM), forragem verde (MSFV), lâmina foliar verde (MSLV) e colmo verde (MSCV), a altura (ALT) e o número de folhas/perfilho (F/P); as relações folha/colmo (F/C) e material vivo/morto (MV/MM) no pré e pós-pastejo; a densidade populacional de perfilhos (DPP); e o índice de área foliar (IAFres). Não foram observados efeitos dos NS e nem dos... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Altura; Densidade populacional de perfilhos; Índice de área foliar; Massa seca de lâmina foliar verde; Panicum maximum; Relação folha/colmo. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982008000300002 |
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| Lopes,Marcos Neves; Cândido,Magno José Duarte; Pompeu,Roberto Cláudio Fernandes Franco; Silva,Rodrigo Gregório da; Carvalho,Thaíse Cristine Ferreira de; Sombra,Weberte Alan; Morais Neto,Luiz Barreto de; Peixoto,Márcio José Alves. |
| This study evaluated the biomass flow of massai grass in regrowth subjected to different nitrogen levels (control - no fertilization; 400; 800; and 1200 N kg ha-1year-1) and under rotational stocking with sheep, in a completely randomized design with repeated measures over time. The leaf elongation rate increased with increasing nitrogen levels (N) and the fourth grazing cycle presented a lower value compared with the others. The stem elongation rate responded linearly with increasing levels of N, but it was not influenced by grazing cycles. The senescence rate of leaves remaining before grazing and after grazing were not influenced by the nitrogen fertilization or amended with successive grazing cycles. The phyllochron was influenced only by the nitrogen... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphogenesis; Nitrogen fertilization; Panicum maximum × Panicum infestum. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000100003 |
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| Pompeu,Roberto Cláudio Fernandes Franco; Cândido,Magno José Duarte; Neiva,José Neuman Miranda; Rogério,Marcos Cláudio Pinheiro; Benevides,Yuri Ida; Oliveira,Bruno César Moura de. |
| Avaliou-se o fluxo de biomassa em capim-tanzânia sob lotação rotativa com quatro níveis de suplementação concentrada, com período de ocupação de três dias e descanso de 21 dias, em delineamento de parcelas subdivididas, de modo que as parcelas foram os níveis de suplementação (0,0; 0,6; 1,2 e 1,8% do PV) e as subparcelas, os ciclos de pastejo (quatro), com três repetições (piquetes amostrais). Não houve efeito dos níveis de suplementação e dos ciclos de pastejo sobre a relação entre as taxas de lâmina foliar (TAlF) das folhas 1 e 2 recentemente expandidas, com média de 0,69. A suplementação e os ciclos de pastejo tiveram efeito quadrático sobre a taxa de alongamento foliar, cujas estimativas foram de 5,04; 4,95 (ponto de mínimo estimado) e 5,7... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Densidade populacional de perfilhos; Índice de área foliar; Panicum maximum; Taxa de alongamento das hastes; Taxa de alongamento foliar; Taxa de senescência foliar. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000500005 |
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| Garcez,Bruno Spindola; Alves,Arnaud Azevêdo; Araújo,Daniel Louçana da Costa; Oliveira,Maria Elizabete de; Pompeu,Roberto Cláudio Fernandes Franco; Rogério,Marcos Cláudio Pinheiro; Moreira,Antônia Leidiana; Lima,Isak Samir de Sousa. |
| ABSTRACT This study aimed to evaluate the performance and ingestive behavior of growing goats grazing on Tanzania guinea grass and fed diets containing 40% carnauba or tucum fruits. Twenty-one male castrated goats were distributed into three groups, one exclusively on pasture and the other two on pasture and fed diet supplemented at the level of 1.5% body weight (BW) in a completely randomized design. The intake of the supplements was obtained by difference between the amount supplied and the leftovers, with weighing performed every seven days, while pasture intake was determined using titanium dioxide (TiO2) as external indicator. Ingestive behavior was evaluated for three days. The supplement containing carnauba fruit resulted in a greater intake of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bactris setosa; Bite rate; Copernicia prunifera; Pasture supplementation; Weight gain. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100703 |
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| Lopes,Marcos Neves; Cândido,Magno José Duarte; Pompeu,Roberto Cláudio Fernandes Franco; Silva,Rodrigo Gregório da; Lopes,José Wellington Batista; Bezerra,Francisco Marcus Lima. |
| To evaluate biomass components of Massai grass under five doses of N (0, 150, 300, 450 and 600 mg N/dm³ soil) during three cycles of growth (establishment, regrowth 1 and regrowth 2) this study was carried out. The experiment was carried out in a greenhouse, in a completely randomized design with measures repeted over time and five replications. In the three cycles, nitrogen doses had increasing linear effect on green herbage dry matter (GHDM), green leaf dry matter (GLDM), on the tiller population density (TPD) and on forage density. Canopy height and foliage height were the highest ones in establishment of regrowth 2, respectively, and they decreased at the highest doses of nitrogen. Irrigation depth was the greatest at the highest doses and in regrowth... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertilization; Forage dry matter; Panicum maximum. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000800002 |
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| Lopes,Marcos Neves; Lacerda,Claudivan Feitosa de; Cândido,Magno José Duarte; Pompeu,Roberto Cláudio Fernandes Franco; Silva,Rodrigo Gregório da; Lopes,José Wellington Batista; Fernandes,Francisco Ronaldo Belém; Bezerra,Francisco Marcus Lima. |
| The objective of this study was to evaluate gas exchange in the massai grass during establishment and regrowth cycles in a greenhouse, using five nitrogen (N) fertilization levels. A completely randomized split-plot design of five nitrogen levels (0; 150; 300; 450 and 600 mg Ndm-3 of soil) was employed with the N levels as plots, and the cycles (establishment, regrowth 1 and 2) as subplots, evaluated with five replicates. We evaluated leaf transpiration (E), leaf temperature (TFOL), leaf photosynthesis rate (A), leaf carbon dioxide concentration (Ci), stomatal conductance (gs), photosynthesis/transpiration ratio (A/E), photosynthesis/conductance ratio (A/gs), chlorophyll relative index (CRI), and nitrogen sufficiency index (NSI). Growth cycles influenced... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chlorophyll; CO2 concentration; Panicum maximum; Photosynthesis. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000900004 |
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| Lopes,Marcos Neves; Cândido,Magno José Duarte; Silveira,Walisson Marques; Maranhão,Theyson Duarte; Soares,Ismail; Pompeu,Roberto Cláudio Fernandes Franco; Silva,Rodrigo Gregório da; Carneiro,Maria Socorro de Souza. |
| ABSTRACT The present study evaluated the accumulation and export of nutrients in cactus pear (Opuntia ficus-indica) cv. Gigante, fertilized with combinations of nitrogen (10, 70, 100, 130, and 190 kg ha−1 year−1 N) and phosphorus (10, 70, 100, 130, and 190 kg ha−1 year−1 P2O5) under annual and biennial harvests, in Quixadá and Tejuçuoca, using a split-plot randomized block design with four replications. In Quixadá, under annual and biennial harvests, the following orders of accumulation of macronutrients (in kg ha−1 year−1) were found, respectively: K (98.8) > Ca (87.2) > N (46.7) > Mg (26.8) > S (18.4) > P (2.04) and Ca (33.5) > K (31.1) > S (18.6) > N (12.9) > Mg (10.5) > P (0.81). In Tejuçuoca, under annual and biennial... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertilization; Harvest frequency; Nutritional demand. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100301 |
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| Pompeu,Roberto Cláudio Fernandes Franco; Rogério,Marcos Cláudio Pinheiro; Cândido,Magno José Duarte; Neiva,José Neuman Miranda; Guerra,José Lúcio Lima; Gonçalves,Josemir de Souza. |
| Avaliou-se o comportamento de ovinos em pastagem de capim-tanzânia irrigado sob suplementação (0,0; 0,6; 1,2 e 1,8% PV) com concentrado. O delineamento utilizado foi o inteiramente casualizado com seis repetições (ovinos). A porcentagem do tempo total sob o sombrite, pastejando, ruminando, em "outras atividades", em ócio, o número de ingestões de suplemento/sal, de defecações, de micções e de ingestão de água e a taxa de bocado foram estimados dividindo-se o dia em oito períodos de 3 horas (das 5 às 8 h; 8 às 11 h; 11 às 14 h; 14 às 17 h; 17 às 20 h; 20 às 23 h; 23 às 2 h; 2 às 5 h). O tempo de pastejo foi maior entre os animais que não receberam suplementação e decresceu progressivamente, voltando a elevar somente com 1,8% de suplementação. O tempo de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Consumo de água; Estresse calórico; Panicum maximum; Semi-árido brasileiro; Tempo de pastejo e ruminação. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000200022 |
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| Pompeu,Roberto Cláudio Fernandes Franco; Cândido,Magno José Duarte; Pereira,Elzânia Sales; Bomfim,Marco Aurélio Delmondes; Carneiro,Maria Socorro de Souza; Rogério,Marcos Cláudio Pinheiro; Sombra,Weberte Alan; Lopes,Marcos Neves. |
| Objetivou-se avaliar a influência de quatro níveis de substituição (0; 33; 67 e 100%) do farelo de soja pela torta de mamona destoxificada em rações sobre o desempenho produtivo e as características de carcaça de ovinos mestiços de Morada Nova. Utilizaram-se 20 machos não-castrados, com peso vivo médio de 18,7 kg, em delineamento de blocos ao acaso com cinco repetições. Foram avaliados o desempenho, o peso, o rendimento e a composição regional das carcaças. A substituição do farelo de soja pela torta de mamona destoxificada não teve efeito sobre o peso vivo ao abate e o ganho de peso total durante o confinamento, entretanto teve efeito linear decrescente sobre o ganho médio diário e a conversão alimentar dos animais. Não foi observado efeito dos níveis de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Borregos; Rendimento de carcaça; Ricinus communis; Subproduto do biodiesel. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300036 |
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| Lopes,Marcos Neves; Cândido,Magno José Duarte; Pompeu,Roberto Cláudio Fernandes Franco; Silva,Rodrigo Gregório da; Bezerra,Francisco Marcus Lima. |
| Objetivou-se avaliar os componentes da biomassa do resíduo pós-corte em capim-massai submetido a cinco doses de nitrogênio (0; 150; 300; 450 e 600 mg N dm-3 de solo) num delineamento inteiramente casualizado, com cinco repetições (vasos) em casa de vegetação. Avaliaram-se a altura residual, a densidade populacional de perfilhos (DPP), a massa seca de forragem total residual (MSFTr), de forragem verde residual (MSFVr), de forragem morta residual (MSFMr), de lâmina foliar verde residual (MSLVr), de colmo verde residual (MSCVr), relação lâmina foliar/haste (LF/C), a massa seca radicular (MS radicular) e a relação parte aérea/raiz. Observou-se efeito quadrático dos níveis de adubação nitrogenada sobre a altura residual. As variáveis MSFTr, MSFVr e MSCVr... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Adubação nitrogenada; Massa seca de lâmina foliar residual; Panicum maximum x Panicum infestum. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902011000200035 |
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| Meneses,Abner José Girão; Cândido,Magno José Duarte; Pompeu,Roberto Cláudio Fernandes Franco; Souza,Henrique Antunes de; Guedes,Fernando Lisboa. |
| ABSTRACT This study evaluated the biomass flow of irrigated Pennisetum purpureum cv. Cameroon fertilized with different levels of organic compost made from waste derived from production and slaughter of sheep and goat farming. The experiment was conducted in a cut and carry of elephant grass for four 60 day-cycles. The treatments consisted of levels of organic compost (0; 13.3; 26.6; 39.9; 53.2; 79.8) ton ha-1, besides a mineral treatment with nitrogen and potassium of 720 and 900 kg ha-1 yr-1, respectively. This was a split plot randomized block design with repeated measures over time, in which levels were assigned to plots, and cycles, to subplots. Morphogenetic characteristics of elephant grass were influenced by levels of the compost. Forage production... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: C:N ratio; Biomass flow; Leaf elongation rate; Mineralization; Pennisetum purpureum. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000400699 |
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| Lopes,Marcos Neves; Cândido,Magno José Duarte; Gomes,Ellen da Costa; Pompeu,Roberto Cláudio Fernandes Franco; Silva,Rodrigo Gregório da. |
| ABSTRACT Balanced fertilization is an important factor in optimizing the growth and productivity of crops. This study aimed to evaluate biomass flow and rain use efficiency in cactus pear cv. Gigante fertilized with combinations of nitrogen (10; 70; 100; 130 and 190 kg ha-1 year-1 N) and phosphorus (10; 70; 100; 130 and 190 kg ha-1 year-1 P2O5), in two harvest frequencies (annual and biennal), in the regions of Quixadá and Tejuçuoca, in Ceará. This was a split-plot randomized block design, with four replicates. In Quixadá and Tejuçuoca, the N and P combinations and harvest frequencies influenced the productions rates of different cladode orders and rain use efficiency in cactus pear. In Quixadá, in the annual harvest, the forage production rate (FPR) was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertilization; Rain use efficiency; Opuntia fícus-indica; Forage production rate. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000200324 |
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| Furtado,Rafael Nogueira; Pompeu,Roberto Cláudio Fernandes Franco; Cândido,Magno José Duarte; Pereira,Elzânia Sales; Lopes,Marcos Neves; Rogério,Marcos Cláudio Pinheiro. |
| ABSTRACT The effect of substituting soybean meal (SM) with four levels (0, 33, 67 and 100%) of detoxified castor cake (DCC) on intake, nutrient digestibility and nitrogen balance was evaluated in uncastrated, male, crossbred sheep in a randomised complete block design with four treatments and five replications. There was a decreasing linear effect from the levels of substitution on dry matter (DM), organic matter (OM) and crude protein (CP) intake, total carbohydrates (TC), non-fibrous carbohydrates (NFC) and total digestible nutrients (TDN), and on DM, OM and TC digestibility, for reductions of 2.04, 1.70, 0.35, 1.56, 1.89 and 1.67 g dia-1 and 0.34, 0.53 and 0.51 g kg-1 DM respectively, for each 1% SM substituted with DCC. DMI and NDFap expressed, in %BW... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiesel; Detoxification; Ricin; Ricinus communis; Nutritional value.. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000100412 |
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| Registros recuperados: 15 | |
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