Changes in soil pH and crop growth following the application of lime-amended biosolids
Approximately half of all the agricultural soils in Australia are affected by soil acidity. Ground limestone is a product used by farmers to better manage and neutralise soil acidity and to improve plant productivity. The effect of lime-amended biosolids (LAB) as an alternative product for neutralis...
| Main Authors: | , , , |
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| Format: | Conference Paper |
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Aqua Enviro Technology Transfer
2007
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/3572 |
| _version_ | 1848744268203556864 |
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| author | Pritchard, Deborah Collins, David Allen, D. Penney, N. |
| author_facet | Pritchard, Deborah Collins, David Allen, D. Penney, N. |
| author_sort | Pritchard, Deborah |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Approximately half of all the agricultural soils in Australia are affected by soil acidity. Ground limestone is a product used by farmers to better manage and neutralise soil acidity and to improve plant productivity. The effect of lime-amended biosolids (LAB) as an alternative product for neutralising soil acidity was applied at four rates (0, 5, 10 and 15 t DS/ha) and compared with equivalent rates of lime (0, 2.3, 4.6 and 6.7 t/ha) and one rate of dewatered biosolids cake (DBC) (7 t DS/ha) in a wheat/canola cropping rotation on an acidic red/brown sandy loam in the wheatbelt of Western Australia. Soil pH (CaCl2) in the surface soil (0-10 cm) increased significantly with increasing rates of either LAB or lime at the end of the first year, increasing from 4.4 to 7.2, with similar values recorded between equivalent values of lime product. The DBC treatment did not change soil pH. No further changes in soil pH had occurred by the end of the second year. The increased yield of wheat with increasing rates of LAB in the first season was attributed to improved nutrition rather than to the overall reduction in soil acidity. The experiment is ongoing and has been sown to wheat in 2007 to further monitor the effects of LAB over time. |
| first_indexed | 2025-11-14T05:58:46Z |
| format | Conference Paper |
| id | curtin-20.500.11937-3572 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T05:58:46Z |
| publishDate | 2007 |
| publisher | Aqua Enviro Technology Transfer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-35722017-01-30T10:32:28Z Changes in soil pH and crop growth following the application of lime-amended biosolids Pritchard, Deborah Collins, David Allen, D. Penney, N. wheat dewatered biosolids cake Canola lime soil acidity lime-amended biosolids Approximately half of all the agricultural soils in Australia are affected by soil acidity. Ground limestone is a product used by farmers to better manage and neutralise soil acidity and to improve plant productivity. The effect of lime-amended biosolids (LAB) as an alternative product for neutralising soil acidity was applied at four rates (0, 5, 10 and 15 t DS/ha) and compared with equivalent rates of lime (0, 2.3, 4.6 and 6.7 t/ha) and one rate of dewatered biosolids cake (DBC) (7 t DS/ha) in a wheat/canola cropping rotation on an acidic red/brown sandy loam in the wheatbelt of Western Australia. Soil pH (CaCl2) in the surface soil (0-10 cm) increased significantly with increasing rates of either LAB or lime at the end of the first year, increasing from 4.4 to 7.2, with similar values recorded between equivalent values of lime product. The DBC treatment did not change soil pH. No further changes in soil pH had occurred by the end of the second year. The increased yield of wheat with increasing rates of LAB in the first season was attributed to improved nutrition rather than to the overall reduction in soil acidity. The experiment is ongoing and has been sown to wheat in 2007 to further monitor the effects of LAB over time. 2007 Conference Paper http://hdl.handle.net/20.500.11937/3572 Aqua Enviro Technology Transfer fulltext |
| spellingShingle | wheat dewatered biosolids cake Canola lime soil acidity lime-amended biosolids Pritchard, Deborah Collins, David Allen, D. Penney, N. Changes in soil pH and crop growth following the application of lime-amended biosolids |
| title | Changes in soil pH and crop growth following the application of lime-amended biosolids |
| title_full | Changes in soil pH and crop growth following the application of lime-amended biosolids |
| title_fullStr | Changes in soil pH and crop growth following the application of lime-amended biosolids |
| title_full_unstemmed | Changes in soil pH and crop growth following the application of lime-amended biosolids |
| title_short | Changes in soil pH and crop growth following the application of lime-amended biosolids |
| title_sort | changes in soil ph and crop growth following the application of lime-amended biosolids |
| topic | wheat dewatered biosolids cake Canola lime soil acidity lime-amended biosolids |
| url | http://hdl.handle.net/20.500.11937/3572 |