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| Dourado,Diego Loiola; Dubeux Junior,José Carlos Batista; Mello,Alexandre Carneiro Leão de; Santos,Mércia Virginia Ferreira dos; Lira,Mário de Andrade; Freitas,Erinaldo Viana de; Apolinário,Valéria Xavier de Oliveira; Santos,Erick Rodrigo da Silva. |
| ABSTRACT The objective was to evaluate the effect of three stocking rates (2, 3.9, and 5.8 animal units ha−1) and three fertilization levels (0, 150, and 300 kg N ha−1 yr−1) on herbage mass and nutritive value of elephantgrass (Pennisetum purpureum Schum.) cv. IRI-381. The experiment was conducted from May to August of 2009 and 2010 in Itambé, PE, Brazil, during the rainy season. Treatments were allocated in a split-plot arrangement in a completely randomized block design. The variables measured included leaf mass (pre- and post-grazing), botanical composition, soil cover, leaf area index, light interception, leaf angle, and concentrations of dry matter, organic matter, N, and in vitro digestible dry matter. When fertilized with 300 kg N ha−1 yr−1, leaf... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grazing; Livestock; Nitrogen; Pasture; Pennisetum purpureum. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100400 |
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| Cunha,Márcio Vieira da; Santos,Mércia Virginia Ferreira dos; Lira,Mário de Andrade; Mello,Alexandre Carneiro Leão de; Freitas,Erinaldo Viana de; Apolinário,Valéria Xavier de Oliveira. |
| O experimento foi realizado com o objetivo de avaliar fatores relacionados à eficiência de pastejo de cinco genótipos de Pennisetum sp. (CE 08 A.D., Venezuela, HV-241, Elefante B e Hexaplóide) no período seco do ano na Zona da Mata de Pernambuco. Os genótipos foram manejados sob lotação rotacionada (44 dias de descanso e quatro dias de pastejo) ao longo de dois ciclos de pastejo. Adotou-se delineamento experimental em blocos ao acaso, com parcelas subdivididas (os genótipos representaram as parcelas e os ciclos de pastejo, as subparcelas) e quatro repetições. As massas de lâmina foliar total, verde e senescente pré-pastejo foram analisadas em seis repetições. O acúmulo e a eficiência de pastejo de lâmina foliar verde foram avaliados em delineamento em... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acúmulo de folhas verdes; Híbrido; Massa de forragem; Perdas de forragem. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982007000200004 |
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| Dubeux Junior,José Carlos Batista; Muir,James P.; Apolinário,Valéria Xavier de Oliveira; Nair,P. K. Ramachandran; Lira,Mario de Andrade; Sollenberger,Lynn E.. |
| ABSTRACT Tree legumes are an underexploited resource in warm-climate silvopastures. Perceived benefits of tree legumes include provisioning (browse/mast, timber, fuel, human food, natural medicines, and ornamentals), regulating (C sequestration, greenhouse gas mitigation, soil erosion control and riparian buffers, shade, windbreaks, and habitat for pollinators), supporting (biological N2-fixation, nutrient cycling, soil fertility and soil health, photosynthesis, and primary productivity), and cultural ecosystem services. Tree legumes, however, have not been assessed to the same extent as herbaceous legumes. Once tree legumes are established, they are often more persistent than most herbaceous legumes. There are limitations for extended research with tree... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological N2 fixation; Ecosystem services; Grassland; Nutrient cycling; Tropical. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000800689 |
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