Publication Date
1993
Description
Uptake of elemental sulphur {S, 50% 75-150 µm and 50% 150-250 µm diameter) or sulphate (applied as gypsum) by pasture in the field was examined using 3 rates of application in autumn or spring on 2 low Sretentive soils; u free-draining pumice soil and a slow-draining gley soil. About 90% of the elmental S was oxidised to plant-available sulphate during I year after application. On the pumice soil, the apparent recovery of added S was greatest from autumn-applied elemental S. Leaching appeared to reduce the effectiveness of sulphate fertiliser. On the gley soil, sulphate was more effective in enhancing pasture production during the first 12-18 months and the apparent recovery of added S was greatest from spring-applied sulphate.
Citation
Ledgard, S F.; Thorrold, B S.; Sprosen, M S.; and Hawke, M F., "Effectiveness of Sulphate and Elemental Sulphur Fertilizers Applied to Pastures in Autumn or Spring" (2024). IGC Proceedings (1993-2023). 27.
https://uknowledge.uky.edu/igc/1993/session40/27
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effectiveness of Sulphate and Elemental Sulphur Fertilizers Applied to Pastures in Autumn or Spring
Uptake of elemental sulphur {S, 50% 75-150 µm and 50% 150-250 µm diameter) or sulphate (applied as gypsum) by pasture in the field was examined using 3 rates of application in autumn or spring on 2 low Sretentive soils; u free-draining pumice soil and a slow-draining gley soil. About 90% of the elmental S was oxidised to plant-available sulphate during I year after application. On the pumice soil, the apparent recovery of added S was greatest from autumn-applied elemental S. Leaching appeared to reduce the effectiveness of sulphate fertiliser. On the gley soil, sulphate was more effective in enhancing pasture production during the first 12-18 months and the apparent recovery of added S was greatest from spring-applied sulphate.
