Results 201 to 210 of about 977 (242)
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Australian Journal of Soil Research, 1993
The productivity of irrigated agriculture in Australia is low for most crops and one important factor is the physical and chemical constraints caused by sodicity in the rootzone. Over 80% of the irrigated soils are sodic and have degraded structure limiting water and gas transport and root growth.
P Rengasamy, KA Olsson
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The productivity of irrigated agriculture in Australia is low for most crops and one important factor is the physical and chemical constraints caused by sodicity in the rootzone. Over 80% of the irrigated soils are sodic and have degraded structure limiting water and gas transport and root growth.
P Rengasamy, KA Olsson
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Use of langbeinite to reclaim sodic and saline sodic soils
Communications in Soil Science and Plant Analysis, 2000Abstract Langbeinite is a soluble potassium‐magnesium sulfate mineral (K2SO42MgSO4) found as an evaporite in many regions of the world. Langbeinite was used as a reclaiming material in a fine textured (clay loam) saline sodic soil (Grabe Series). This amendment can be dissolved and directly into the irrigation water, displacing sodium (Na) quickly with
Janick F. Artiola +2 more
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A review of sodicity and sodic soil behavior in Queensland
Australian Journal of Soil Research, 1994The occurrence of sodic soils in Queensland is more related to soil genetic factors of the past than to the current rainfall pattern, with lower sodium accessions and smaller occurrence of saline lands than other areas of Australia. A soil sodicity map of Queensland is presented.
R Shaw, L Brebber, C Ahern, M Weinand
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Australian Journal of Soil Research, 1991
Sodic soils are widespread in Australia reflecting the predominance of sodium chloride in groundwaters and soil solutions. Sodic soils are subject to severe structural degradation and restrict plant performance through poor soil-water and soil-air relations.
P Rengasamy, KA Olsson
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Sodic soils are widespread in Australia reflecting the predominance of sodium chloride in groundwaters and soil solutions. Sodic soils are subject to severe structural degradation and restrict plant performance through poor soil-water and soil-air relations.
P Rengasamy, KA Olsson
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Australian Journal of Soil Research, 1993
This paper gives a broad overview of the distribution and agricultural importance of sodic soils in Victoria. Sodic soils are estimated to occupy at least 13.4 Mha, representing at least 73% of Victoria's agricultural land. Most of this land is used for dryland farming; about 85% of the cropped land and 66% of the land sown to dryland pastures occurs ...
GW Ford +4 more
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This paper gives a broad overview of the distribution and agricultural importance of sodic soils in Victoria. Sodic soils are estimated to occupy at least 13.4 Mha, representing at least 73% of Victoria's agricultural land. Most of this land is used for dryland farming; about 85% of the cropped land and 66% of the land sown to dryland pastures occurs ...
GW Ford +4 more
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Sodicity effects on hydrological processes of sodic soil slopes under simulated rainfall
Hydrological Processes, 2017AbstractSoil salinization can occur in many regions of the world. Soil sodicity affects rainfall‐runoff relationships and related erosion processes considerably. We investigated sodicity effects on infiltration, runoff and erosion processes on sodic soil slopes for two soils from China under simulated rainfall.
Dongdong Liu, Dongli She
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1984
The objective in reclaiming sodic soils is to ameliorate undesirable physical conditions such as surface crusting and low hydraulic conductivity which impede infiltration, water storage, seedling emergence and root development. These undesirable physical characteristics result from enhancement, by exchangeable sodium, of clay swelling, dispersion, and ...
J. Loveday, K. K. Tanji, S. J. Deverel
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The objective in reclaiming sodic soils is to ameliorate undesirable physical conditions such as surface crusting and low hydraulic conductivity which impede infiltration, water storage, seedling emergence and root development. These undesirable physical characteristics result from enhancement, by exchangeable sodium, of clay swelling, dispersion, and ...
J. Loveday, K. K. Tanji, S. J. Deverel
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Tatura Sodicity Conference: knowledge gaps in sodicity research for major agricultural industries
Australian Journal of Experimental Agriculture, 2002This paper summarises the outcomes of the International Sodicity Conference, ‘Sodicity Issues in Agricultural Industries — Current Research and Future Directions’, held at Tatura, Victoria, 28 February–1 March 2000. In this paper we present (i) sodicity issues generic across agricultural industries, (ii) results of the interactive workshop, and (iii ...
Surapaneni, A. +8 more
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1993
Sodic soil reclamation generally involves the application and incorporation of gypsum into the soil followed by leaching. The rate of reclamation depends on the water intake rate. This rate can become very slow due to inadequate electrolyte concentration in the soil solution to counteract the effects of exchangeable sodium on aggregate stability, clay ...
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Sodic soil reclamation generally involves the application and incorporation of gypsum into the soil followed by leaching. The rate of reclamation depends on the water intake rate. This rate can become very slow due to inadequate electrolyte concentration in the soil solution to counteract the effects of exchangeable sodium on aggregate stability, clay ...
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Sodic soils - New perspectives
Australian Journal of Soil Research, 1993There are large areas of the world where soils are adversely affected by the presence of sodium (Na) as an exchangeable cation. Unlike their saline counterparts which are more extensive, sodic soils have received less attention in the literature. There has been considerable disagreement concerning the definition of sodicity, owing largely to the fact ...
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