Effect of high rates of sulphur on the CaCO3 and CaSO4 content of calcareous soils
Short Communications
Received:
Revised:
- 30 Downloads
Abstract
Samples of two calcareous soils from central Iraq were amended with 2, 6 and 10 mg g−1 soil of agriculturegrade sulphur and incubated for 4, 8 and 12 weeks at 30°C and 70% water-holding capacity. At the end of each incubation period, soils were analyzed for sulphate, CaCO3 and CaSO4. The sulphate content of the soils increased, whereas the CaCO3 content decreased, with increasing S levels and incubation time. The gypsum formed was in proportion to the sulphur oxidised and the calcium released from CaCO3.
Key words
agricultural sulphur calcareous soils calcium carbonate gypsum incubated sulphurPreview
Unable to display preview. Download preview PDF.
References
- Dawood F Aet al., 1985 J. Agric. Water Reso. Res, 2, 149–160.Google Scholar
- John P 1976 Plant and Soil 44, 329–365.Google Scholar
- Kadow A and Rubeska I 1970 Inst. Appl. res. on Nat. Reso. Tech. Report No. 1.Google Scholar
- Richards L A (Ed) 1954 U.S. Salinity Lab. Staff. Handbook No. 60 USA Washington.Google Scholar
- Smith R and Robertson V C 1962 J. Soil Sci. 13 106–115.Google Scholar
- Van Alphen J G and delos Riso Romero 1971 Journal publ. 12, 11–44.Google Scholar
Copyright information
© Kluwer Academic Publishers 1989