{"id":100,"date":"2015-05-05T15:17:29","date_gmt":"2015-05-05T05:17:29","guid":{"rendered":"http:\/\/wp.csiro.au\/evercrop\/?page_id=100"},"modified":"2015-06-11T13:49:43","modified_gmt":"2015-06-11T03:49:43","slug":"low-rainfall-zone","status":"publish","type":"page","link":"https:\/\/wp.csiro.au\/evercrop\/project-activities\/low-rainfall-zone\/","title":{"rendered":"Southern (SA-Vic Low Rainfall Zone)"},"content":{"rendered":"

Outline<\/strong><\/p>\n

Low Rainfall Zone (LRZ): The low-rainfall zone of South Australia, Victoria and NSW<\/p>\n

This region is characterised by an average annual rainfall of 250\u2013350\u00a0mm, of which ~70% falls during the April\u2013October cereal growing season, with highly variable soils often in a dune\u2013swale complex. The dryland farming system is typically based on wheat, barley and annual pasture, with relatively small areas of canola and pulse legume crops such as peas and lupins. Farm businesses with both cropping and livestock remain common in the Mallee.<\/p>\n

The area of perennials in the Mallee region is currently low. It is likely that new options with improved suitability for the cropping-oriented low-rainfall farming system where annual average rainfall is <350\u00a0mm will need to emerge if perennial legume adoption is to increase in the Mallee.<\/p>\n

The areas of research activity in the LRZ are broadly based around subtropical grasses and forage shrubs. The potential for tropical grasses to fill a small niche on marginal soils aimed at providing summer\u2013autumn feed was identified as being tested. The most commonly grown perennial forage shrub is old man saltbush (Atriplex nummularia<\/em> Lindl.). It has a demonstrated ability to grow on soils marginal for cropping and provide summer\u2013autumn feed as well as shelter for livestock. There is potential for greater use of forage shrubs on soils marginal for cropping, but improved plant options or species mixtures are likely to be needed, in particular options offering improved feed quality, together with a clearer demonstration of the economic value, if substantial increases in perennial forage shrub plantings are to occur.<\/p>\n

Interest in alternative uses for marginal cropping soils is also increasing, with grazing of cereals on soils with subsoil constraints being one example.<\/p>\n

Two months in the life of the Mallee\u2019s sub\u2010tropical perennial grasses \u2013 Opens as a .pdf file<\/a><\/p>\n

SELECTED PUBLICATIONS<\/strong><\/p>\n

Descheemaeker, K, Llewellyn, R, Moore, A, Whitbread, A (2014a) Summer-growing perennial grasses are a potential new feed source in the low rainfall environment of southern Australia. Crop & Pasture Science 65, 1033\u20131043.\u00a0 http:\/\/www.publish.csiro.au\/?act=view_file&file_id=CP13444.pdf<\/a><\/p>\n

Descheemaeker, K, Smith, AP, Robertson, M, Whitbread, A, Huth, N, Davoren, W, Emms, J (2014b) Simulation of water-limited growth of the forage shrub saltbush (Atriplex nummularia Lindl.) in a low rainfall environment of southern Australia. Crop & Pasture Science 65, 1068-1083.\u00a0 http:\/\/www.publish.csiro.au\/?act=view_file&file_id=CP13452.pdf<\/a><\/p>\n

Gupta, V, Kroker, S, Davoren, B, McBeath, T, McKay, A, Ophel-Keller, K, Llewellyn, R, Roget, D (2013) Summer weed control benefits Rhizoctonia disease management in cereal crops. In \u2018Research Compendium 2012.\u2019 pp. 5. (Mallee Sustainable Farming) http:\/\/msfp.org.au\/wp-content\/uploads\/2013\/06\/2012-Summer-weed-control-benefits-Rhizoctonia-disease-management-in-cereal-crops-Root-Disease.pdf<\/a><\/p>\n

Gupta, V, Llewellyn, R, McBeath, T, Kroker, S, Davoren, D, McKay, A, Ophel-Keller, K, Whitbread, A (2012) Soil biology and Rhizoctonia disease management update \u2013 Break crop experiments at Karoonda. In \u2018Mallee Sustainable Farming Results Compendium 2011.\u2019 (Mallee Sustinable Farming Inc: Mildura) http:\/\/msfp.org.au\/wp-content\/uploads\/2013\/10\/Soil-biology-and-Rhizoctonia-disease-managment-update-Break-crop-experiments-at-Karoonda.pdf<\/a><\/p>\n

Gupta, V, Roget, D, Davoren, C, Llewellyn, R, Whitbread, A M Unkovich (Ed.) (2008) \u2018Farming system impacts on microbial activity and soil organic matter dynamics in southern Australian Mallee soils, Global Issues Paddock Action, Proceedings of th 14th Australian Agronomy Conference.\u2019 Adelaide. (Australian Society of Agronomy. Available at http:\/\/www.regional.org.au\/au\/asa\/2008\/concurrent\/crop-agronomy\/5918_guptavvsr.htm<\/a><\/p>\n

Llewellyn, R, Robertson, MJ, Hayes, R, Ferris, D, Revell, C, Descheemaeker, K (2013) A strategic approach to developing the role of perennials for crop-livestock farmers. In \u2018Revitalising Grasslands to Sustain our Communities: Proceedings 22nd International Grassland Congress. Sydney, Australia\u2019, 15-19 September 2013. (Eds DL Michalk, GD Millar, WB Badgery, KM Broadfoot)\u00a0 http:\/\/edepot.wur.nl\/306309<\/a><\/p>\n

Norman, HC, Masters, DG, Wilmot, MG, Rintoul, AJ (2008) Effect of supplementation with grain, hay or straw on the performance of weaner Merino sheep grazing old man ( Atriplex nummularia) or river (Atriplex amnicola) saltbush. Grass and Forage Science 63, 179-192.\u00a0 http:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/j.1365-2494.2007.00623.x\/abstract <\/a><\/p>\n

\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"

Outline Low Rainfall Zone (LRZ): The low-rainfall zone of South Australia, Victoria and NSW This region is characterised by an […]<\/p>\n","protected":false},"author":36,"featured_media":0,"parent":22,"menu_order":1,"comment_status":"closed","ping_status":"open","template":"","meta":{"nba-redirect":"","footnotes":""},"class_list":["post-100","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/wp.csiro.au\/evercrop\/wp-json\/wp\/v2\/pages\/100","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.csiro.au\/evercrop\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.csiro.au\/evercrop\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.csiro.au\/evercrop\/wp-json\/wp\/v2\/users\/36"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.csiro.au\/evercrop\/wp-json\/wp\/v2\/comments?post=100"}],"version-history":[{"count":31,"href":"https:\/\/wp.csiro.au\/evercrop\/wp-json\/wp\/v2\/pages\/100\/revisions"}],"predecessor-version":[{"id":248,"href":"https:\/\/wp.csiro.au\/evercrop\/wp-json\/wp\/v2\/pages\/100\/revisions\/248"}],"up":[{"embeddable":true,"href":"https:\/\/wp.csiro.au\/evercrop\/wp-json\/wp\/v2\/pages\/22"}],"wp:attachment":[{"href":"https:\/\/wp.csiro.au\/evercrop\/wp-json\/wp\/v2\/media?parent=100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}