The effects of lime, gypsum and lime/gypsum combinations, after 2.5 years, on two sodic soils under dryland cropping conditions in the Macquarie Valley, NSW
Paper
Paper/Presentation Title | The effects of lime, gypsum and lime/gypsum combinations, after 2.5 years, on two sodic soils under dryland cropping conditions in the Macquarie Valley, NSW |
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Presentation Type | Paper |
Authors | Bennett, J. McL. (Author), Cattle, S. R. (Author) and Singh, B. (Author) |
Journal or Proceedings Title | Proceedings of the 5th Joint Australian and New Zealand Soil Science Conference: Soil Solutions for Diverse Landscapes (SSA 2012) |
Number of Pages | 4 |
Year | 2012 |
Place of Publication | Hobart, Australia |
Web Address (URL) of Paper | http://www.soilscience2012.com |
Conference/Event | 5th Joint Australian and New Zealand Soil Science Conference (SSA 2012): Soil Solutions for Diverse Landscapes |
Event Details | 5th Joint Australian and New Zealand Soil Science Conference (SSA 2012): Soil Solutions for Diverse Landscapes Parent Joint Australian and New Zealand Soil Science Conference Event Date 02 to end of 07 Dec 2012 Event Location Hobart, Australia |
Abstract | While gypsum, and to a lesser extent lime, are reported as ameliorants for soil sodicity, there is relatively little information concerning the use of these ameliorants in combination. This study investigates the use of lime and gypsum combinations on selected soil properties relating to sodicity on two different soils used for dryland cropping in the Macquarie Valley of New South Wales (NSW). Lime and gypsum treatments were applied to two soils (lime [L] and/or gypsum [G], applied at t/ha rates: L0G0 [control], L2.5G0, L0G2.5, L2.5G2.5, L2.5G5, L5G2.5, and L5G5) that were sampled after 2.5 years and analysed for soil pH, EC and aggregate stability. Changes in pH and EC, as well as correlations, suggest that lime has dissolved more readily in the presence of gypsum. While aggregate stability was not significantly enhanced, significant relationships between soil EC and aggregate stability were found. |
Keywords | acidic soils; lime; gypsum; dryland soils |
ANZSRC Field of Research 2020 | 410604. Soil chemistry and soil carbon sequestration (excl. carbon sequestration science) |
410605. Soil physics | |
410601. Land capability and soil productivity | |
Public Notes | No evidence of copyright restrictions preventing deposit. |
Byline Affiliations | National Centre for Engineering in Agriculture |
University of Sydney | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q18yv/the-effects-of-lime-gypsum-and-lime-gypsum-combinations-after-2-5-years-on-two-sodic-soils-under-dryland-cropping-conditions-in-the-macquarie-valley-nsw
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