Search Results - "Carlos Guilherme Silveira Pedreira"
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Microclimate of grass canopies and biomass accumulation are influenced by the use of caged exclosures in grazing research
Published in International journal of biometeorology (2022)“…Exclosure cages are often used for estimating biomass accumulation on continuously stocked pastures in grazing experiments. The microclimate inside the cages…”
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2
Fixed versus variable rest period effects on herbage accumulation and canopy structure of grazed 'Tifton 85' and 'Jiggs' Bermuda grass
Published in Pesquisa agropecuaria brasileira (01-01-2018)“…The objective of this work was to evaluate the effects of variable and fixed rest periods on the forage production, plant-part composition, and canopy…”
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3
Seasonal herbage accumulation, plant-part composition and nutritive value of signal grass (Urochloa decumbens) pastures under simulated continuous stocking
Published in Tropical grasslands-Forrajes tropicales (01-05-2020)“…In order to optimize the regrowth and harvest of signal grass (Urochloa decumbens) cv. Basilisk pastures it is necessary to establish more precise grazing…”
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Parameterization of the APSIM model for simulating palisadegrass growth under continuous stocking in monoculture and in a silvopastoral system
Published in Agricultural systems (01-09-2020)“…Sustainable intensification of livestock production systems has become a global demand. In silvopastoral systems, contrasting shading levels caused by the…”
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Forage accumulation, nutritive value, and grazing efficiency on rotationally stocked ‘Zuri’ guineagrass pastures as affected by pre‐graze canopy height and N rate
Published in Grass and forage science (01-06-2024)“…Grazing management and nitrogen fertilisation may affect forage accumulation (FA), nutritive value, and grazing efficiency (GE) of the highly productive ‘Zuri’…”
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Shading effects on canopy and tillering characteristics of continuously stocked palisadegrass in a silvopastoral system in the Amazon biome
Published in Grass and forage science (01-09-2020)“…In silvopastoral (SP) systems, forage responses depend on the microenvironment in which the plants develop. Our objective was to evaluate canopy and tillering…”
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Stocking method effects on forage accumulation, canopy attributes, and nutritive value of grazed Mulato II brachiariagrass pastures
Published in Grass and forage science (01-06-2023)“…Rotational stocking (RS) is generally associated with the intensification of pasture‐based animal production systems, although many studies have shown little…”
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Acúmulo de forragem durante a rebrotação de capim-xaraés submetido a três estratégias de desfolhação
Published in Revista brasileira de zootecnia (2009)“…Objetivou-se comparar a dinâmica do acúmulo de forragem em pastos de capim-xaraés [Brachiaria brizantha (A. Rich.) Stapf. cv. Xaraés] submetidos a três…”
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9
Quantifying herbage mass on rotationally stocked palisadegrass pastures using indirect methods
Published in Scientia agricola (01-01-2009)“…Indirect, non-destructive methods for estimating herbage mass on pasture may help growers to better estimate herbage mass and manage the grazing process. The…”
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Canonical correlations among chemical, physical and morphological characteristics of Xaraés palisadegrass under rotational grazing
Published in Scientia agricola (01-01-2009)“…In forage evaluation experiments, the assessment of adaptive and productive characteristics of genotypes is generally prioritized over qualitative responses…”
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11
Tiller size/density compensation in grazed Tifton 85 bermudagrass swards
Published in Pesquisa agropecuaria brasileira (01-12-2003)“…The objective of this study was to evaluate the occurrence of the tiller size/density compensation mechanism in Tifton 85 bermudagrass swards grazed by sheep…”
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12
Respostas morfogênicas e estruturais de dosséis de espécies de Braquiária à intensidade de desfolhação
Published in Pesquisa agropecuaria brasileira (01-07-2011)“…O objetivo deste trabalho foi avaliar as respostas morfogênicas e estruturais de duas espécies e cinco cultivares de braquiária a intensidades de desfolhação…”
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13
Estimativa da assimilação potencial de carbono em dosséis de espécies de braquiária
Published in Pesquisa agropecuaria brasileira (01-07-2011)“…O objetivo deste trabalho foi quantificar a fotossíntese foliar, durante o período de rebrotação, e estimar a fotossíntese de dosséis de duas espécies e cinco…”
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14
Demografia e densidade de perfilhos de capim-braquiária sob pastejo em lotação intermitente
Published in Pesquisa agropecuaria brasileira (01-03-2011)“…O objetivo deste trabalho foi avaliar os efeitos de intensidades de pastejo e de frequências de desfolha na demografia e densidade de perfilhos de…”
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15
Desenvolvimento de modelos preditores de acúmulo de forragem em pastagens tropicais
Published in Pesquisa agropecuaria brasileira (01-05-2010)“…O objetivo deste trabalho foi identificar, quantificar e modelar atributos condicionantes do acúmulo de forragens no Brasil Central e desenvolver modelos…”
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Desempenho de ovinos e respostas de pastagens de Coastcross submetidas a regimes de desfolha sob lotação contínua
Published in Pesquisa agropecuaria brasileira (01-06-2001)“…O objetivo deste estudo foi avaliar o desempenho de ovinos e as respostas de pastagens de Coastcross (Cynodon spp.) com quatro alturas de pasto (5, 10, 15 e 20…”
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Sward structure and herbage yield of rotationally stocked pastures of 'Marandu' palisadegrass [Brachiaria brizantha (A.Rich.) Stapf] as affected by herbage allowance
Published in Scientia agricola (01-04-2006)“…In ruminant-forage systems herbage allowance (HAL) has a major impact on grazing intensity and sward structure, affecting animals, plants, and ultimately,…”
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Forage yield and grazing efficiency on rotationally stocked pastures of 'Tanzania-1' guineagrass and 'Guaçu' elephantgrass
Published in Scientia agricola (01-10-2005)“…The potential carrying capacity of tropical pastures depends not only on the productivity of the forage species and the amount of forage on offer, but also on…”
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Produção estacional, índice de área foliar e interceptação luminosa de cultivares de alfafa sob pastejo
Published in Pesquisa agropecuaria brasileira (2004)“…A alfafa (Medicago sativa L.) pastejada pode promover redução de custos de alimentação de ruminantes, mas o desempenho agronômico de cultivares sob pastejo no…”
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20
Fotossíntese foliar do capim-xaraés [Brachiaria brizantha (A. Rich.) Stapf. cv. Xaraés] e modelagem da assimilação potencial de dosséis sob estratégias de pastejo rotativo
Published in Revista brasileira de zootecnia (2007)“…Objetivou-se com este trabalho quantificar a fotossíntese foliar ao longo do período de rebrotação e modelar a fotossíntese de dosséis vegetativos em função da…”
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