EverGraze: the productive management of perennial grazing systems in extreme drought

Research output: Book chapter/Published conference paperConference paper

27 Downloads (Pure)

Abstract

EverGraze is a national research and delivery project developing profitable perennial-based livestock systems which aims to increase profit by 50% while improving environmental outcomes. Four sheep grazing systems were tested near Tarcutta NSW during the drought of 2006/07. The apparent plant density of lucerne (Medicago sativa) pasture was maintained between years, phalaris (Phalaris aquatica) retained 70-90% of plants while tall fescue (Festuca arundinacea) density declined by 50%. The persistence of both lucerne and fescue did not decline with higher stocking intensities. Groundcover in December 2006 and May 2007 at the autumn rains was similar between grazing systems. Minimum lucerne groundcover was between 40 and 60%, while phalaris and fescue was maintained above 60%. Ewes in the higher stocking rate systems were removed from plots to a containment area earlier to protect pastures, and returned later after the seasonal break. It is concluded that productive pastures can be maintained through extreme droughts with suitable grazing management. The flexibility of different grazing systems in terms of generating cash flow and potential for stock sale to counter seasonal conditions in adverse years should be considered.
Original languageEnglish
Title of host publication14th AAC
Subtitle of host publicationGlobal issues. Paddock action
EditorsMurray Unkovich
Place of PublicationAdelaide
PublisherAgronomy Australia
Pages1-6
Number of pages6
ISBN (Electronic)9789793566573
Publication statusPublished - 2008
EventAustralian Agronomy Conference - Adelaide, South Australia, Australia
Duration: 21 Sep 200825 Sep 2008

Conference

ConferenceAustralian Agronomy Conference
CountryAustralia
Period21/09/0825/09/08

Fingerprint

Phalaris
alfalfa
Festuca
drought
pastures
grazing
ground cover plants
Festuca arundinacea
Phalaris aquatica
grazing management
Medicago sativa
plant density
stocking rate
profits and margins
sales
ewes
livestock
autumn
rain
sheep

Cite this

Robertson, S., Friend, M., & Broster, J. (2008). EverGraze: the productive management of perennial grazing systems in extreme drought. In M. Unkovich (Ed.), 14th AAC: Global issues. Paddock action (pp. 1-6). Adelaide: Agronomy Australia.
Robertson, Susan ; Friend, Michael ; Broster, John. / EverGraze : the productive management of perennial grazing systems in extreme drought. 14th AAC: Global issues. Paddock action. editor / Murray Unkovich. Adelaide : Agronomy Australia, 2008. pp. 1-6
@inproceedings{be90517a3af54230bfe9a9cadc44da21,
title = "EverGraze: the productive management of perennial grazing systems in extreme drought",
abstract = "EverGraze is a national research and delivery project developing profitable perennial-based livestock systems which aims to increase profit by 50{\%} while improving environmental outcomes. Four sheep grazing systems were tested near Tarcutta NSW during the drought of 2006/07. The apparent plant density of lucerne (Medicago sativa) pasture was maintained between years, phalaris (Phalaris aquatica) retained 70-90{\%} of plants while tall fescue (Festuca arundinacea) density declined by 50{\%}. The persistence of both lucerne and fescue did not decline with higher stocking intensities. Groundcover in December 2006 and May 2007 at the autumn rains was similar between grazing systems. Minimum lucerne groundcover was between 40 and 60{\%}, while phalaris and fescue was maintained above 60{\%}. Ewes in the higher stocking rate systems were removed from plots to a containment area earlier to protect pastures, and returned later after the seasonal break. It is concluded that productive pastures can be maintained through extreme droughts with suitable grazing management. The flexibility of different grazing systems in terms of generating cash flow and potential for stock sale to counter seasonal conditions in adverse years should be considered.",
keywords = "Open access version available, Growth rates, Lambs, Reproduction",
author = "Susan Robertson and Michael Friend and John Broster",
note = "Imported on 03 May 2017 - DigiTool details were: publisher = Adelaide: Australian Society of Agronomy, 2008. editor/s (773b) = Murray Unkovich; Event dates (773o) = 21-25 Sep 2008; Parent title (773t) = Australian Agronomy Conference.",
year = "2008",
language = "English",
pages = "1--6",
editor = "Murray Unkovich",
booktitle = "14th AAC",
publisher = "Agronomy Australia",

}

Robertson, S, Friend, M & Broster, J 2008, EverGraze: the productive management of perennial grazing systems in extreme drought. in M Unkovich (ed.), 14th AAC: Global issues. Paddock action. Agronomy Australia, Adelaide, pp. 1-6, Australian Agronomy Conference, Australia, 21/09/08.

EverGraze : the productive management of perennial grazing systems in extreme drought. / Robertson, Susan; Friend, Michael; Broster, John.

14th AAC: Global issues. Paddock action. ed. / Murray Unkovich. Adelaide : Agronomy Australia, 2008. p. 1-6.

Research output: Book chapter/Published conference paperConference paper

TY - GEN

T1 - EverGraze

T2 - the productive management of perennial grazing systems in extreme drought

AU - Robertson, Susan

AU - Friend, Michael

AU - Broster, John

N1 - Imported on 03 May 2017 - DigiTool details were: publisher = Adelaide: Australian Society of Agronomy, 2008. editor/s (773b) = Murray Unkovich; Event dates (773o) = 21-25 Sep 2008; Parent title (773t) = Australian Agronomy Conference.

PY - 2008

Y1 - 2008

N2 - EverGraze is a national research and delivery project developing profitable perennial-based livestock systems which aims to increase profit by 50% while improving environmental outcomes. Four sheep grazing systems were tested near Tarcutta NSW during the drought of 2006/07. The apparent plant density of lucerne (Medicago sativa) pasture was maintained between years, phalaris (Phalaris aquatica) retained 70-90% of plants while tall fescue (Festuca arundinacea) density declined by 50%. The persistence of both lucerne and fescue did not decline with higher stocking intensities. Groundcover in December 2006 and May 2007 at the autumn rains was similar between grazing systems. Minimum lucerne groundcover was between 40 and 60%, while phalaris and fescue was maintained above 60%. Ewes in the higher stocking rate systems were removed from plots to a containment area earlier to protect pastures, and returned later after the seasonal break. It is concluded that productive pastures can be maintained through extreme droughts with suitable grazing management. The flexibility of different grazing systems in terms of generating cash flow and potential for stock sale to counter seasonal conditions in adverse years should be considered.

AB - EverGraze is a national research and delivery project developing profitable perennial-based livestock systems which aims to increase profit by 50% while improving environmental outcomes. Four sheep grazing systems were tested near Tarcutta NSW during the drought of 2006/07. The apparent plant density of lucerne (Medicago sativa) pasture was maintained between years, phalaris (Phalaris aquatica) retained 70-90% of plants while tall fescue (Festuca arundinacea) density declined by 50%. The persistence of both lucerne and fescue did not decline with higher stocking intensities. Groundcover in December 2006 and May 2007 at the autumn rains was similar between grazing systems. Minimum lucerne groundcover was between 40 and 60%, while phalaris and fescue was maintained above 60%. Ewes in the higher stocking rate systems were removed from plots to a containment area earlier to protect pastures, and returned later after the seasonal break. It is concluded that productive pastures can be maintained through extreme droughts with suitable grazing management. The flexibility of different grazing systems in terms of generating cash flow and potential for stock sale to counter seasonal conditions in adverse years should be considered.

KW - Open access version available

KW - Growth rates

KW - Lambs

KW - Reproduction

M3 - Conference paper

SP - 1

EP - 6

BT - 14th AAC

A2 - Unkovich, Murray

PB - Agronomy Australia

CY - Adelaide

ER -

Robertson S, Friend M, Broster J. EverGraze: the productive management of perennial grazing systems in extreme drought. In Unkovich M, editor, 14th AAC: Global issues. Paddock action. Adelaide: Agronomy Australia. 2008. p. 1-6