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Study on the Effect of Sulphur, Glucose, Nitrogen and Plant Residues on the Immobilization of Sulphate-S in Soil

Authors: S. Shahsavani, A. Gholami


In order to evaluate the relationship between the sulphur (S), glucose (G), nitrogen (N) and plant residues (st), sulphur immobilization and microbial transformation were monitored in five soil samples from 0-30 cm of Bastam farmers fields of Shahrood area following 11 treatments with different levels of Sulphur (S), glucose (G), N and plant residues (wheat straw) in a randomized block design with three replications and incubated over 20, 45 and 60 days, the immobilization of SO4 -2-S presented as a percentage of that added, was inversely related to its addition rate. Additions of glucose and plant residues increased with the C-to-S ratio of the added amendments, irrespective of their origins (glucose and plant residues). In the presence of C sources (glucose or plant residues). N significantly increased the immobilization of SO4 -2-S, whilst the effect of N was insignificant in the absence of a C amendment. In first few days the amounts of added SO4 -2-S immobilized were linearly correlated with the amounts of added S recovered in the soil microbial biomass. With further incubation the proportions of immobilized SO4 -2-S remaining as biomass-S decreased. Decrease in biomass-S was thought to be due to the conversion of biomass-S into soil organic-S. Glucose addition increased the immobilization (microbial utilization and incorporation into the soil organic matter) of native soil SO4 -2-S. However, N addition enhance the mineralization of soil organic-S, increasing the concentration of SO4 - 2-S in soil.

Keywords: Nitrogen, Glucose, Microbial Biomass, immobilization, sulphur

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[1] S.Bhupinderpal., Z. Rengel and J.W. Bowden, Carbon, nitrogen and sulphur cycling following incorporation of canola residue of different sizes into a nutrient-poor sandy soil. Biology and Biochemistry., Vol. 38, pp.32-42. 2006.
[2] H.Chowdhury., K.M. Kouno, T. AndoCritical sulphur concentration and sulphur requirement of microbial biomass in a glucose and celluloseamemded regosol. Biol. Fertil. Soils ., Vol. 32, pp. 310-317. 2000.
[3] E.Eriksen, Gross sulphur mineralization-immobilization turnover in soil amended with plant residues. Soil biology and Biochemistry. Vol. 37, pp. 2216-2224. 2005.
[4] A.Ghani, R.G. McLarn, and R.S. Swift, The incorporation and transformations of 35S in soil: Effects of soil conditioning and glucose or sulphate additions. Soil Biol. Biochem. Vol. 2, pp. 327-335 .1993.
[5] Massoumi, A. and A. H. Cornfield, A rapid method for determinating sulphate in water extracts of soils. Analyst, London. Vol. 88, pp. 321- 322. 1963.
[6] A.G.O-Donnell., J. Wu, and J.K. Syers, Sulphate-S amendments in soil and their effects on the transformation of soil sulphur.Soil Biology and Biochemistry. Vol 26, pp. 1507-1514. 1994.
[7] T.Pennanen, Caul, S., Daniell, J.J., Griffiths, B.S., Ritz, K, and R.E., Wheatley, Community-level responses of metabolically active soil micro-organism to the quantity and quality of substrate inputs. Soil Biol. Biochem. Vol. 36, pp. 841-848 .2004.
[8] Vong, P.C. S., Piutti, S.S Deschaumes, E, Benizri and A. Guckert, Sulphur immobilization and arylsulphatase activity in two calcareous arable and fallow soils as affected by glucose additions. Geoderma.Vol. 148, pp. 79-84 .2008.
[9] J.Wu, AG O'Donnell, JK SyersMicrobial growth and sulphur immobilization following the incorporation of plant residues into soil. Soil Biol. Bioch ., Vol. 25, pp.1567-1573. 1993.
[10] J.Wu, D. O- Donnell, A.G, Z. L. He, and J. K. Syers, Fumigationextraction method for the measurement of soil microbial biomass-S. Soil Biol. Biochem.,Vol. 26: pp 117-125. 1994.