Publication Date
1997
Description
This study examined grazing management options on perennial ryegrass (Lolium perenne) based pastures to determine if perennial ryegrass could be increased in a degraded pasture, or maintained in a newly sown pasture. Study sites were at Hamilton and Cavendish, Victoria; Delamere, South Australia, and Ross and Parattah, Tasmania. Average rainfall is 500mm at Ross, 575mm at Parattah, 700mm at Hamilton, 650mm at Cavendish and 900mm at Delamere. At all sites, 8 core grazing management treatments were imposed, and up to 4 “local options.” Changes in botanical composition indicate that grazing management can influence the amount of perennial ryegrass in the sward. Rotational grazing over autumnwinter, and additional fertilizer increased the ryegrass content at Hamilton, fodder conservation, and a November and autumn rest favoured ryegrass at Cavendish, whilst at Delamere, fodder conservation and a spell during autumn with increased grazing pressure during spring were beneficial. At Ross, no treatment favoured ryegrass, however several treatments were detrimental, including spelling over spring.
Citation
Graham, John F.; Prance, Tim; and Thompson, Robin, "The Effect of Grazing Management Options on the Persistence of Perennial Ryegrass in the Temperate Winter Rainfall Zone of Southern Australia" (2024). IGC Proceedings (1993-2023). 26.
https://uknowledge.uky.edu/igc/1997/session29/26
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
The Effect of Grazing Management Options on the Persistence of Perennial Ryegrass in the Temperate Winter Rainfall Zone of Southern Australia
This study examined grazing management options on perennial ryegrass (Lolium perenne) based pastures to determine if perennial ryegrass could be increased in a degraded pasture, or maintained in a newly sown pasture. Study sites were at Hamilton and Cavendish, Victoria; Delamere, South Australia, and Ross and Parattah, Tasmania. Average rainfall is 500mm at Ross, 575mm at Parattah, 700mm at Hamilton, 650mm at Cavendish and 900mm at Delamere. At all sites, 8 core grazing management treatments were imposed, and up to 4 “local options.” Changes in botanical composition indicate that grazing management can influence the amount of perennial ryegrass in the sward. Rotational grazing over autumnwinter, and additional fertilizer increased the ryegrass content at Hamilton, fodder conservation, and a November and autumn rest favoured ryegrass at Cavendish, whilst at Delamere, fodder conservation and a spell during autumn with increased grazing pressure during spring were beneficial. At Ross, no treatment favoured ryegrass, however several treatments were detrimental, including spelling over spring.
