Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Doctorat → Australie → Managing summer-active tall fescue (Lolium arundinaceum syn. Festuca arundinacea Schreb.) based swards in southern Australia

Theses Charles Sturt University (2011)

Managing summer-active tall fescue (Lolium arundinaceum syn. Festuca arundinacea Schreb.) based swards in southern Australia

Raeside, Margaret.Carswell

Titre : Managing summer-active tall fescue (Lolium arundinaceum syn. Festuca arundinacea Schreb.) based swards in southern Australia

Auteur : Raeside, Margaret.Carswell.

Grade : Doctor of Philosophy (PhD) 2011

Université de soutenance : Charles Sturt University

Résumé
This project broadly hypothesised that summer-active tall fescue (Lolium arundinaceum syn. Festuca arundinacea Schreb.) could be established on heavy textured soils in the high rainfall (> 600 mm/year) zone of southern Australia and swards based on the species managed to provide a year-round source of pasture. This hypothesis was tested by conducting a survey and a series of field experiments, under grazing by sheep, in the south west Victoria region of southern Australia. Only 14% of the properties in the survey contained summer-active tall fescue, with the species usually comprising a small area of the property or a trial paddock. The primary reasons for the low adoption rate were the slow establishment of the species and its poor nutritive value during spring. There were, however, many successfully established and managed swards in the survey, which were associated with heavy waterlogged soils. The slow establishment of summer-active tall fescue was addressed by conducting a field experiment under dryland conditions near Hamilton in south west Victoria. It was hypothesised that summer-active tall fescue can be successfully established in south west Victoria by direct drilling high rates of seed at depth during spring.

Mots-clés : Grazing management ; Nitrogen fertiliser ; Pasture agronomy ; Tall fescue

Présentation

Version intégrale (5 Mb)

Page publiée le 24 mai 2011, mise à jour le 3 juillet 2017