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| Martins,Clóvis David Medeiros; Schmitt,Daniel; Duchini,Paulo Gonçalves; Miqueloto,Tiago; Sbrissia,André Fischer. |
| ABSTRACT: This study evaluated the leaf area index (LAI) recovery mechanisms and forage accumulation rates on the regrowth of different grass species subjected to different defoliation intensities. For that purpose, plots of Pennisetum clandestinum (kikuyugrass), Lolium multiflorum (annual ryegrass), and Avena strigosa (black oats) were defoliated from 20 to 80 % of their initial heights (25, 20, and 25 cm, respectively). At different increments in height, forage samples were collected to ground level and used to estimate tiller population density (TPD), leaf area per tiller (LA), and forage mass. From these data, we calculated the leaf area index (LAI), average leaf area index (aLAI), and average and instantaneous forage accumulation rate (FAR and IFAR,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grazing heights; Grazing management; Intermittent stocking; Sward targets. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000200504 |
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| Martins,Clóvis David Medeiros; Schmitt,Daniel; Duchini,Paulo Gonçalves; Miqueloto,Tiago; Sbrissia,André Fischer. |
| ABSTRACT: This study evaluated the leaf area index (LAI) recovery mechanisms and forage accumulation rates on the regrowth of different grass species subjected to different defoliation intensities. For that purpose, plots of Pennisetum clandestinum (kikuyugrass), Lolium multiflorum (annual ryegrass), and Avena strigosa (black oats) were defoliated from 20 to 80 % of their initial heights (25, 20, and 25 cm, respectively). At different increments in height, forage samples were collected to ground level and used to estimate tiller population density (TPD), leaf area per tiller (LA), and forage mass. From these data, we calculated the leaf area index (LAI), average leaf area index (aLAI), and average and instantaneous forage accumulation rate (FAR and IFAR,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grazing heights; Grazing management; Intermittent stocking; Sward targets. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000200403 |
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| Brum, Marcos da Silva; Cunha, Vinícius Dos Santos; Stecca, Jéssica Deolinda Leivas; Grando, Luiz Fernando Teleken; Martin, Thomas Newton. |
| The objective of this study was to evaluate the agronomic characteristics of corn seed inoculated with Azospirillum brasilense, grown on black oat and ryegrass straw, and managed under different grazing strategies and doses of nitrogen. The experiment was conducted in Santa Maria, Rio Grande do Sul State, Brazil, during two agricultural seasons (2012/2013 and 2013/2014) in a randomized, complete block design with three replications. In the winter period, black oat and ryegrass straw were managed at different grazing heights by sheep (0.30, 0.20, 0.10 m, conventional grazing, and no grazing) with three doses of nitrogen (0, 50, and 100 kg ha-1, with or without inoculation by A. brasilense). We used the hybrid Pioneer (P1630H®) in 2012 and the hybrid... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.01.00.00-9 Zea mays; Grazing heights; Biological nitrogen fixation; Nitrogen; Integrated systems. Fitotecnia. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/30664 |
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