The effect of rotational and continuous grazing on sward
2001
Pavlu, V. (Vyzkumny Ustav Rostlinne Vyroby, Liberec (Czech Republic). Research Station) | Velich, J.
The effect of rotational (RG) and continuous (CG) grazing of heifers on swards was studied in an experimental pasture in upland of the Jizerske hory mountains from 1993 to 1997. The number of grass tillers, white clover stolon growing points (sgp), and forbs were measured 3-4 times during the grazing season in each treatment. Clover stolon growing density averaged over time was significantly increased (P 0.001) by continuous grazing. There was a general trend for sgp to gradually increase during the grazing season. The grazing system did not influence the number of grass tillers. Contrary to the white clover sgp, the number of grass tillers was highest at the beginning of the grazing season and after that it decreased. The average number of forbs tended to be greatest with CG with high variation at both treatment sites during the grazing seasons without significant differences. The number of forbs peaked in the first and last grazing cycle. The seasonal fluctuation of the present species was the main effect on the number of clover sgp, grass tillers and forbs.
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