Soil microbiology
Organic farming
Green soil fertility management
Land degradation and pollution management
Principles and practices of organic farming
Small scale green farming
- Balasubramaniam, P., Thurairajah, A., Gnanavelrajah, N., and Ratnayake, R. 2019. Formulation of a low cost medium for Spirulina sp. using cow dung ash medium. Proceedings of Jaffna Science Association, 26 (1): 36.
- Priyatharshini, B., Gnanavelrajah, N., and Ratnayake, R. R. 2019. The potential use of cyanobacteria as Biofertilizer for rice variety BG 251. Proceedings of 5th International Conference on Dryzone Agriculture, Faculty of Agriculture, University of Jaffna, 5: 81.
- University Prize (Thambiah Muthaliyar Chatram trust) – Best performance in the first examination in Agriculture – academic year 2012/13
- University Prize for the best performance in the second examination in Agriculture – academic year 2014
- University prize for the best performance in the third examination in Agriculture – academic year 2015
- University prize for the best performance in the fourth examination in Agriculture – academic year 2016
- Thillainayaki Kanagasabapathy scholarship for the best performance in first year and second year - 2014
- Sellachchi Sanmugam Memorial scholarship for the best overall performance in first year, second year and third year – 2015
- Late Mrs. Puvaneswary Loganathan Memorial Gold Medal for the best overall performance in Agriculture in the award of degree of Bachelor of Science in Agriculture -2016
- Late Dr & Mrs C. Jeyaratnam Memorial Gold Medal for the highest OGPA obtained among the students specialized in Agricultural Chemistry in the award of degree of Bachelor of Science in Agriculture – 2016
- Somasundaram Kandiah Endowment Prize for the best overall performance in Agronomy in the award of degree of Bachelor of Science in Agriculture -2016
- Ratnam Reginold Dharmatnam Memorial Prize for the best overall performance in Agriculture in the award of degree of Bachelor of Science in Agriculture -2016
- Dean Merit Certificate for Best Research in Agricultural Chemistry (Soil) in the year 2017 for Fourth Examination in Agriculture
- Lecturer (Temporary) at the Department of Biosystems Technology, Faculty of Technology, University of Jaffna, Sri Lanka (18th April 2021 to 29th December 2021)
- Demonstrator at the Department of Agricultural Chemistry, Faculty of Agriculture, University of Jaffna, Sri Lanka (02nd September 2020 to 04th March 2020)
- Lecturer (Temporary) at the Department of Agricultural Chemistry, Faculty of Agriculture, University of Jaffna, Sri Lanka (01st December 2018 to 31st August 2020)
- Demonstrator at the Department of Agricultural Chemistry, Faculty of Agriculture, University of Jaffna, Sri Lanka (17th October 2018 to 01st December 2018)