Tatura Sodicity Conference: knowledge gaps in sodicity research for major agricultural industries

Surapaneni, Aravind; Olsson, KA; Burrow, David; Beecher, H. G.; Ham, G. J.; Stevens, Richard J. A. M.; Hulugalle, N. R.; McKenzie, D. C.; Rengasamy, Pichu

doi:10.1071/ea02044

Cited by 4 publications

(2 citation statements)

References 4 publications

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“…At an international sodicity conference held at Tatura, Victoria in early 2000, numerous sodicity knowledge gaps were identified for the cotton industry, including the better prediction of clay dispersion caused by sodicity, the effects of sodicity on cotton growth, soil processes in sodic soils, the effects of using sodic irrigation water, the economic and social costs of sodicity, the efficacy of sodicity ameliorants, and the effects of sodicity on soil biota (Surapaneni et al 2002). In the following years of the AC-CRC and Cotton CRC, further work was carried out on the effects of different crop rotations and soil husbandry strategies on sodicity in various locations (e.g.…”

Section: Number Of Salinity and Sodicity Papersmentioning

confidence: 99%

A review of the soil science research legacy of the triumvirate of cotton CRC

Cattle

Field

2013

Crop Pasture Sci.

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For nearly two decades (1994–2012) a series of three consecutive Cooperative Research Centres (CRC) dealing with cotton production provided the impetus and financial support for a substantial body of soil science research in eastern and northern Australia. Focusing on the most commonly utilised soil for irrigated crop production, the Vertosol, CRC-affiliated soil researchers undertook detailed soil inventories of cotton-growing valleys in New South Wales, and tackled a range of applied soil research questions that faced the entire Australian cotton industry. Across the broad categories of soil mapping and characterisation, soil physical condition, salinity and sodicity, soil chemical fertility, and soil carbon and biota, some 120 CRC-affiliated research papers were published in peer-reviewed journals during the years of the CRC. Findings from this body of research were fed back to the industry through conferences, extension workshops and materials, and to a lesser extent, the peer-reviewed publications. In certain cases, underpinning basic research was carried out concurrently with the more applied research, meaning that the cotton CRC were effectively supporting advances in the discipline of soil science, as well as in sustainable cotton production. A feature of the soil research portfolio over the span of the three cotton CRC was that priorities shifted according to the interplay of three factors; the natural maturation of research topics and the concomitant evolution of cotton farming systems, the rising importance of environmental implications of agricultural land use, and the emergence of carbon as a national research priority. Furthermore, the commitment of the CRC to education resulted in the involvement of undergraduate and postgraduate university students in all aspects of the soil research effort. A legacy of the triumvirate of cotton CRC is a wide-ranging body of both applied and basic knowledge regarding the physical, chemical and biological attributes of Australian Vertosols used for irrigated agriculture.

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Section: Number Of Salinity and Sodicity Papersmentioning

confidence: 99%

A review of the soil science research legacy of the triumvirate of cotton CRC

Cattle

Field

2013

Crop Pasture Sci.

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“…The impact of sodicity on crop production has been extensively reviewed Rengasamy 2002;Surapaneni et al 2002). Soil sodicity limits plant growth indirectly through poor physical conditions and directly as a consequence of sodium toxicity.…”

Section: Sodicitymentioning

confidence: 99%

High clay contents, dense soils, and spatial variability are the principal subsoil constraints to cropping the higher rainfall land in south-eastern Australia

MacEwan¹,

Crawford²,

Newton

et al. 2010

Soil Res.

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Abstract. Available soil information and unpublished data from soil survey indicate that high clay contents and high bulk density are the major subsoil constraints to crop growth in the high rainfall zone (HRZ) of south-eastern Australia. Seven high rainfall agroecological zones are proposed as sub-divisions of the region to focus future research and development. The HRZ is dominated by texture-contrast soils (69.9%) and soils with clay subsoil (89.4%) and high bulk density (mean 1.6 t/m 3 ). Sodicity and acidity are also significant constraints to crop production in the HRZ. The physical limitations to root growth in the HRZ subsoils are best appreciated through the least-limiting water range concept and growth-limiting bulk densities. Management options and results of past research and intervention in soil loosening, drainage, raised beds, liming, and gypsum are reviewed. Climatic uncertainty raises questions about the future relevance of waterlogging as a constraint in the HRZ and confounds the development of reliable recommendations for engineering intervention.

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