2009
DOI: 10.1590/s0103-90162009000600003
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Abstract: Grazing strategies alter sward leaf area patterns of growth, affecting herbage accumulation and utilisation. The objective of this experiment was to evaluate the growth of marandu palisadegrass (Brachiaria brizantha cv. Marandu) swards subjected to strategies of intermittent stocking. The experiment was carried out in Piracicaba, São Paulo, Brazil, from October/2004 to September/2005. Swards were grazed at 95 and 100% canopy light interception (LI) to post-grazing heights of 10 and 15 cm, following a 2 × 2 fac… Show more

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Cited by 59 publications
(72 citation statements)
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References 15 publications
(72 reference statements)
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“…When evaluating the Xaraés palisade grass with 16.2 cm for the average residual height, Pedreira, Pedreira and Silva (2007) found 22 days on average for the rest periods during the spring/ summer period. The rest period that was observed in this study is lower than that found by Giacomini et al (2009) for marandu palisade grass. From October to March 2004 and from October to December 2005, this author found an average grazing interval of 45.7 and 28.7 days for pastures with post-grazing heights of 10 and 15 cm, respectively.…”
Section: Resultscontrasting
confidence: 79%
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“…When evaluating the Xaraés palisade grass with 16.2 cm for the average residual height, Pedreira, Pedreira and Silva (2007) found 22 days on average for the rest periods during the spring/ summer period. The rest period that was observed in this study is lower than that found by Giacomini et al (2009) for marandu palisade grass. From October to March 2004 and from October to December 2005, this author found an average grazing interval of 45.7 and 28.7 days for pastures with post-grazing heights of 10 and 15 cm, respectively.…”
Section: Resultscontrasting
confidence: 79%
“…This finding reinforces the need to establish variable rest periods based on pasture growth. Giacomini et al (2009) proposed that canopy heights under 95% light were more suitable for use when marandu palisade grass is close to 25 cm; however, in this study, the post-grazing heights in use ranged from 10 to 15 cm. Likewise, Gimenes et al (2011) studied pre-grazing heights of 25 and 35 cm and nitrogen doses of 50 and 200 kg/ha/year in marandu palisade grass, and they concluded that ideal management would take place at pre-grazing heights of 25 cm and 15 cm residue.…”
Section: Resultscontrasting
confidence: 61%
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“…This plant has been evaluated with a reductionist approach based on morphogenesis allied to a tight control of sward structure by frequency and severity of defoliation (Marcelino et al, 2006;Giacomini et al, 2009). This new approach has enabled the generation of more consistent information allowing a better understanding of the factors that regulate forage production on tropical pastures (Da Silva & Nascimento Jr., 2007).…”
Section: Introductionmentioning
confidence: 99%
“…Essa máxima produção somente será obtida se uma área apropriada de folhas interceptar a luz incidente (WARREN WILSON, 1961). De maneira geral, o conceito de IAF (Índice de Área Foliar) crítico, condição na qual 95% da luz incidente são interceptados, aplicado com sucesso em plantas de clima temperado, demonstrouse efetivo e válido também para o manejo de gramíneas tropicais , como demonstrado nos trabalhos realizados por Giacomini et al (2009a;2009b) (DEREGIBUS et al, 1983). O inverso ocorreu com o número de perfilhos mortos (Tabela 2), maior mortalidade de perfilhos ocorreu nos pastos submetidos à intensidade de corte de 10 cm e foi decrescendo conforme aumentou a altura de resíduo.…”
Section: Introductionunclassified