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| Giacomini,Alessandra Aparecida; Mattos,Waldssimiler Teixeira de; Mattos,Herbert Barbosa de; Werner,Joaquim Carlos; Cunha,Eduardo Antonio da; Carvalho,Dora Duarte de. |
| Foram avaliadas características do sistema radicular (pré e pós-pastejo) dos capins aruana e tanzânia submetidos a doses de nitrogênio (150 e 300 kg ha-1 de N) e pastejados por ovinos em lotação rotacionada com três a sete dias de pastejo e período de descanso variável. O delineamento experimental foi o de blocos completos casualizados (dois) com duas repetições, em esquema de parcelas subdivididas (parcelas =capins e subparcelas=doses de N) e medidas repetidas no tempo. No pré-pastejo, o capim-tanzânia, na média entre doses de N e períodos de pastejo, apresentou maior quantidade de massa seca da matéria orgânica (MSMO) (1,7 mg cm-3 de solo) que o capim-aruana (1,2 mg cm-3 de solo), além de maior comprimento de raízes (119,1 cm cm-3 de solo e 68,7 cm cm-3... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertilização nitrogenada; Panicum maximum; Sistema radicular. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982005000400004 |
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| Giacomini,Alessandra Aparecida; Silva,Sila Carneiro da; Sarmento,Daniel Oliveira de Lucena; Zeferino,Cauê Varesqui; Souza Júnior,Salim Jacaúna; Trindade,Júlio Kuhn da; Guarda,Vítor del'Alamo; Nascimento Júnior,Domicio do. |
| 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 factorial arrangement with four replications in a randomised complete block design. The response variables evaluated were: crop growth rate, relative growth rate, net assimilation rate, leaf area ratio and leaf weight ratio. In early and late spring, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachiaria brizantha; Canopy light interception; Regrowth; Grazing management. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000600003 |
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| Giacomini,Alessandra Aparecida; Silva,Sila Carneiro da; Sarmento,Daniel Oliveira de Lucena; Zeferino,Cauê Varesqui; Trindade,Júlio Kuhn da; Souza Júnior,Salim Jacaúna; Guarda,Vítor del'Alamo; Sbrissia,André Fischer; Nascimento Júnior,Domicio do. |
| Leaf area index is the main sward characteristic related to the processes of light interception and competition in plant communities. The objective of this experiment was to quantify and evaluate the composition of the leaf area on tillers of marandu palisadegrass (Brachiaria brizantha cv. Marandu) subjected to strategies of intermittent stocking. The experiment was carried out in Piracicaba, state of São Paulo, Brazil, from October/2004 to December/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 factorial arrangement with four replications in a randomised complete block design. Estimates were made of sward leaf area index, site filling, specific leaf area and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachiaria brizantha; Aerial tillers; Basal tillers; Site filling; Sward height. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000600002 |
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