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Root dry matter mass and distribution of Florico grass under different grazing strategies PAB
Barros,Ana Carolina Carvalho de; Almeida,João Carlos de Carvalho; Camargo Filho,Sergio Trabali; Carvalho,Carlos Augusto Brandão de; Campana,Ludmila Lacerda; Morais,Leonardo Fiusa de.
Abstract: The objective of this work was to evaluate the variations in root dry matter mass (RDM) and the percentage distribution (PD) of the root density of Florico grass (Cynodon nlemfuensis) in the 0-40-cm soil layer, when managed under different grazing strategies. Two defoliation frequencies (90 and 95% light interception, as the criterion for allowing animals in the paddock) and two defoliation severities (post-grazing heights of 20 or 30 cm) were assessed. Four seasonal evaluations of the root system were performed between the winter of 2012 and the autumn of 2013, using the monolith and trench excavation technique, collecting 1-dm3 samples from soil surface down to a depth of 40 cm, in four sequential extracts of 10 cm each. Lower RDM values (0.69...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cynodon nlemfuensis; Forage species; Light interception; Percentage distribution; Post-grazing stubble height; Root density.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001201276
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