Prof. Sudas D. Wanniarachchi

BSc Agric (Ruhuna), MSc (Guelph, Canada), PhD (Guelph, Canada)

Professor in Soil Science
Dept of Soil Science
Faculty of Agriculture, University of Ruhuna, Sri Lanka

Phone

:

+94 41 22 94 378 / +94 41 22 92 200 / Ext 219

Fax

:

+94 41 22 92 384

E-mail

:

sdwanni@soil.ruh.ac.lk

s.d.wanniarachchi@gmail.com

   

FULL NAME

Sudas D. Wanniarachchi

 

NATIONALITY

Sri Lankan

 

HIGHER EDUCATION

  • PhD, University of Guelph, Canada.

  • MSc, University of Guelph, Canada.

  • BSc (Agric), University of Ruhuna, Sri Lanka.

 

BOOKS AND RESEARCH PUBLICATIONS

 

1. Recent Publications:

 

Wanniarachchi, S. D. and Voroney, R. P. 2005. Nature of carbon in soil humic substances and incorporation of cron residue-derived carbon to soil humic fractions as revealed by 13C natural abundance. Proceedings of the Third Academic Sessions of University of Ruhuna, Matara, Sri Lanka. (in press).

 

Wanniarachchi, S. D. and Seneviratne, G. J. P. 2005. Applicability of soil available nitrogen and microbial biomass carbon as indicators to assess soil quality in low country wet zone agricultural lands. Proceedings of the Third Academic Sessions of University of Ruhuna, Matara, Sri Lanka. (in press).

 

Wanniarachchi, S. D. and Senanayake, A. P. 2005. Mineralization and release of nitrogen and phosphorus from tropical tree legumes decomposing in soil. Proceedings of the 61st Annual Sessions of the Sri Lanka Association for the Advancement of Science. Colombo, Sri Lanka. p.15.

 

Wanniarachchi, S. D. and Shyamalee, H. A. P. A. 2005. Monitoring soil quality in low country wet zone agricultural lands: identifying soil quality indicators responsive to land management. Proceedings of the 61st Annual Sessions of the Sri Lanka Association for the Advancement of Science. Colombo, Sri Lanka. pp. 15-16.

 

Walpola, B. C. and Wanniarachchi, S. D. 2005. Organic matter and nutrient status of some selected tea growing soils in the Matara district. Proceedings of the 61st Annual Sessions of the Sri Lanka Association for the Advancement of Science. Colombo, Sri Lanka. p. 108.

 

Walpola, B. C., Wanniarachchi, S. D. and Liyanage, J. A. 2005. Influence of propanil on soil nitrogen mineralization as affected by the rate of application. Proceedings of the 61st Annual Sessions of the Sri Lanka Association for the Advancement of Science. Colombo, Sri Lanka. p. 109.

 

Wanniarachchi, S. D., and Shyamalee, H. A. P. A. 2004. Soil organic matter and wet aggregate stability in a low country wet zone Ultisol as affected by land use. Proceedings of the 60th Annual Sessions of the Sri Lanka Association for the Advancement of Science. Colombo, Sri Lanka. p. 92.

 

Wanniarachchi, S. D., Dharshana, M. A. C. and Zoysa, A. K. N. 2004. Influence of soil rehabilitation and land management on soil quality indicators in a tea plantation in Galle district. Proceedings of the 60th Annual Sessions of the Sri Lanka Association for the Advancement of Science. Colombo, Sri Lanka. p. 93.

 

Wanniarachchi, S. D. and H. A. P. A. Shyamalee 2004. Influence of land management on soil quality indicators in an Ultisol in Sri Lanka. Eurosoil 2004, September 4-12, 2004, Freiburg, Germany.

 

Walpola, B. C., Wanniarachchi, S. D., and J. A. Liyanage 2004. Influence of Propanil and Glyphosate on soil microbial activity. Proceedings of the Second Academic Sessions of University of Ruhuna, Matara, Sri Lanka. pp 20-26.

 

Walpola, B. C., Wanniarachchi, S. D., and J. A. Liyanage 2004. Effect of Glyphosate on soil nitrogen mineralization. Proceedings of the Second Academic Sessions of University of Ruhuna, Matara, Sri Lanka. pp 187-191.

 

Wanniarachchi, S. D., and Seneviratne, G. J. P. 2003. Seasonal variation of soil inorganic nitrogen in an Ultisol as affected by land use. Proceedings of the ninth annual forestry and environment symposium. University of Sri Jayawardenapura, Nugegoda, Sri Lanka. p. 15.

 

Wanniarachchi, S. D., Perera, P. D. P. S., Dharshana, M. A. C., and Zoysa, A. K. N. 2003. Soil organic carbon as an indicator of soil quality: A study in selected tea plantations in Galle district. Proceedings of the ninth annual forestry and environment symposium. University of Sri Jayawardenapura, Nugegoda, Sri Lanka. p. 13.

 

Walpola, B. C., and Wanniarachchi, S. D. 2003. Soil organic matter and nutrient status of some vegetable growing soils in Matara district. Proceedings of the ninth annual forestry and environment symposium 2003. University of Sri Jayawardenapura, Nugegoda, Sri Lanka. p. 12.

 

Walpola, B. C., Zoysa, A. K. N. and Wanniarachchi, S. D. 2003. Forms of phosphorus in soils fertilized with Eppawala rock phosphate as measured by chemical fractionation. Proceedings of the 59th Annual Sessions of the Sri Lanka Association for the Advancement of Science. Colombo, Sri Lanka. p. 109.

 

Walpola, B. C., Zoysa, A. K. N., and Wanniarachchi, S. D. 2003. Dissolution of Eppawala phosphate rock in low country Ultisols as influenced by rate and method of application. Proceedings of the First Academic Sessions of University of Ruhuna, Matara, Sri Lanka. pp 19-22.

 

Wanniarachchi, S. D., and Voroney, R. P. 2002. Effects of tillage and cropping on the dynamics of light and heavy fraction organic matter in soil. Symposium 59 - Towards integrated soil, water and nutrient management in cropping systems: the role of nuclear techniques. 17th World Congress of Soil Science, August 14-21, 2002, Bangkok, Thailand. p 1833.

 

Zoysa, A. K. N., Sagarika, T. W., Hettiarachchi, L. S. K., Dissanayake, S. M. and Wanniarachchi, S. D. 2001. Nitrogen nutrition of tea plants in soils amended with organic materials. International Conference on nature farming and ecological balance. International Society for nature farming (ISNF), CCS, Haryana Agricultural University, Hisar, India. March 7 - 10, 2001, India. pp. 94-95.

 

Wanniarachchi, S. D. and Voroney, R. P. 2000. Can the 13C natural abundance technique be applied to quantify the soil organic matter in crop rotations with mixed C3 and C4 plants? Proceedings of the International symposium on nuclear techniques in integrated plant nutrient, water and soil management (IAEA-SM-363). October 16-20, International Atomic Energy Agency, Vienna, Austria. pp 127-132.

Soil Biology & Biochemistry/Soil Biogeochemistry: Soil organic matter dynamics & nutrient cycling, carbon sequestration in soils, soil quality, forest soils, ecological agriculture.