Prof. (Mrs) Nalina Gnanavelrajah
PhD (AIT, Thailand), M.Phil(UOP, Sri Lanka), B.Sc. in Agriculture (Eastern University, Sri Lanka)
Professor in Agricultural Chemistry
- +94
- nalina@univ.jfn.ac.lk
- Website
Academic Profile
Admin Positions
Teaching
Research
Publications
Awards
Outreach Activities
Academic Profile
EMPLOYMENT HISTORY
- Senior Professor in Agricultural Chemistry, Department of Agricultural Chemistry, Faculty of Agriculture University of Jaffna, Sri Lanka. May 2024- to date
- Professor in Agricultural Chemistry, Department of Agricultural Chemistry, Faculty of Agriculture University of Jaffna, Sri Lanka. May 2016- April 2024
- Senior Lecturer grade 1, Department of Agricultural Chemistry, Faculty of Agriculture University of Jaffna, Sri Lanka. June 2008-May 2016
- Senior Lecturer grade I1, Department of Agricultural Chemistry, Faculty of Agriculture University of Jaffna, Sri Lanka. June 1999-2008
- Lecturer (Probationary), Department of Agricultural Chemistry, Faculty of Agriculture University of Jaffna, Sri Lanka January 1991-1999
- Temporary Demonstrator, Department of Agricultural Chemistry, Faculty of Agriculture University of Jaffna, Sri Lanka November1990-1991
- Agricultural Officer, Ministry of Lands and Agriculture, Sri Lanka: October 1989 -1990
- Temporary Demonstrator, Department of Agronomy, Faculty of Agriculture
Eastern University, Sri Lanka November 1989-Oct 1989
SHORT-TERM ASSIGNMENTS
- Senior research Associate, NEOL Project funded by SIDA, Asian Institute of Technology, Thailand. 2008 Jan– 2008 May
- Research Associate, GMS Environment Operating Center, The Offices at Central World, 23rd Floor, 999/9 Rama I Road, Pathumwan, Bangkok, Thailand 2007 Oct – Dec
- Activity Supervisor, A part-time contract, Environmental studies, Sirindhorn International Institute of Technology,Thammasat University, Thailand 2007June – Sept
- Research Associate, Energy Field of Study, Asian Institute of Technology
2007 July – August - Research Associate, UNEP Regional Resource Center for Asia and the Pacific (RRC.AP), Thailand: 2007 May – June
- Resource person, Bridging Program, Language Center, Asian Institute of Technology, Thailand: 2007 April
- Student Associate, NRM Field of Study, AIT, Thailand 2006 Nov – March 2007
- Teaching assistant, NRM Field of Study, AIT, Thailand 2006 December 2006
EDUCATION
• Ph.D (Natural Resources Management), Asian Institute of Technology Thailand 2007
• M.Phil. (Soil Science), PGIA, University of Peradeniya, Sri Lanka 1999
• B.Sc. (Agriculture), Eastern University , Sri Lanka 1987
Admin Positions
- Head of the Department of Agriculture Chemistry, Faculty of Agriculture, University of Jaffna:
- September 2000 – August 2004
- February 2010 to February 2016
- May 2021 to May 2024
- Chairperson, Board of Study of Agricultural Sciences, Faculty of Graduate Studies, University of Jaffna May 2021 – May 2024
- Member, Board of Study of Earth and Environmental Science, Faculty of Graduate Studies, University of Jaffna May 2021 – May 2024
- Deputy Director (Part-time), Well-being Regional Center, Kilinochchi Premises of The University of Jaffna, 2020.
- Warden (Part-time), Female Hostel, Kilinochchi Premises, University of Jaffna , February 2021 to February 2023
- Member of the committee to draft Policy framework and by-Law on Gender Equity and Equality, University of Jaffna (2017)
- Member of the Pioneer committee on Gender equity and Equality, University of Jaffna: 2017 – 2019
- Chairperson of Internal Quality Assurance cell, Faculty of Agriculture, University of Jaffna up 2021 to 2022.
Teaching
University of Jaffna
a) Postgraduate: Master of Environmental Management, Graduate studies, University of Jaffna, Sri Lanka 2012 – to date
- MEM10403 – Development and Environment (15% involved)
- MEM20203 – Land Resources Management (50% involved)
- MEM10603 – Remote Sensing and GIS for Environmental Management (50% involved)
b) Undergraduate: Faculty of Agriculture, University of Jaffna, Sri Lanka
- SS 11012 Nature of Soils
- SS 12013 Soil Properties and Processes
- SS 31013 Soil Classification Soil Fertility and Plant Nutrition
- SS 32012 Soil Physics for Sustainable Agriculture
- SS32022 Soil Chemistry
- SS 41013 Land Resource management and GIS Applications
- SS 41022 Soil and plant Analytical Techniques
- SS 41033 Sustainable Plant nutrition
- SS 41052 Soil and Environmental Management
- SS 41062 Soil science based community project
- ACC 12021 Social Harmony
c) Interfaculty teaching: Faculty of Technology, University of Jaffna
- BTG211TC2: Green Soil Fertility Management
- BTG303TC2: Land Degradation and Pollution Management
Research
Research areas
Soil Fertility and plant nutrition
Organic fertilizers
Soil Carbon sequestration
Pollution management
Applications of GIS in land management
Postgraduate supervision
- Supervisor for an MPhil student in the board of study Agriculture University of Jaffna titled “Screening of plant growth promoting rhizobacteriafrom onion rhizosphere and assessing their performance under field condition”. Completed in 2018
- Supervisor for an MPhil student in the board of study Agriculture University of Jaffna titled “Isolation of Denitrifying Bacteria and their potential use in Nitrate removal from well water of Jaffna District”. Completed in 2019
- Co-supervisor for an MPhil student in the board of study Soil Science, Post Graduate Institute of Agriculture, University of Peradeniya titled “Characterization of Soils in Northern Province”.
- Supervisor for following Master degree research in Environmental Management in the board of Study earth and environmental studies, University of Jaffna
“Charred biomass as soil amendment”
“Nitrogen Removal from drinking water by edible semi- aquatic plants”
“Charred biomass addition to reduce fertilizer requirement for beetroot”
”Nitrate analysis in vegetables”
- “Assessment of present status of solid waste disposal and proposing a management plan through a participatory approach: a case study in Karachchi pradeshiya sabha area in Kilinochchi district”
- Co-Supervisor for following Master degree research in Environmental Management in the board of Study earth and environmental studies, University of Jaffna
- “Analyzing water quality and monitoring pollution level in irrigated ponds in
Mannar district”
Publications
Publication in refereed journals
- De Silva., A.H.A.T.E., Gnanavelrajah, N., Ketheesan, B., Kajeevan K and Rivenderan,M (2025). Production of Chlorella-based liquid fertilizer from dairy wastewater to reduce synthetic fertilizer use: Eurasian Journal of Soil Science 2025, 14(4), 376 -385
- Nalina Gnanavelrajah, Sathasivam Theepika, Jeyavanan Karthigesu, Selvarajah Raveendran (2025). Palmyrah (Borassus flabellifer) palm land-use system: A potential key tool for enhancing carbon stock and floristic diversity in a dry zone tropical landscape,Trees, Forests and People, 20: 100827, ISSN 2666-7193, https://doi.org/10.1016/j.tfp.2025.100827
- Kajeevan, K., and Gnanavelrajah, N. (2023). Evaluation of a newly formulated organic fertilizer on growth and yield of curry chilli (Capsicum frutescens L.). AGRIEAST, 17(2), 1-12.
- Kariyawasam Hetti Gamage,L.R., Gnanavelrajah, N., Ketheesan, B. and Kajeevan, K. (2023). Chlorella sp. Cultivation Using Parboiled Rice Effluent and Utilization of the Microalgae as Co-organic Fertilizer for Brinjal (Solanum melongina). Waste and Biomass Valorization, 1-14
- Kirisan, A., Gnanavelrajah, N and Ratnayake, R.R (2022). Screening of potential aerobic denitrifying bacteria for nitrate removal from water. Journal of the National Science Foundation of Sri Lanka 50 (3): 639 – 649
- Kalaivani, S and Gnanavelrajah, N (2021). Formulation of organic liquid fertilizers and their effects on germination of selected seeds and growthand yield of chilli (Capsicum frutescens L.). Journal of Dry Zone Agriculture, 2021, 7(2):77-96
- Ratnayake, R.R., Roshanthan, T., Gnanavelrajah , N and Karunaratne, S. B (2019). Organic Carbon Fractions, Aggregate Stability, and Available Nutrients in Soil and Their Interrelationships in Tropical Cropping Systems: A Case Study. Eurasian Soil Science, Vol. 52 (12: 1542–1554
- Senthuran, S., Balasooriya, B.L.W.K., Arasakesary, S.J and Gnanavelrajah, N (2019).Effect of Seaweed Extract (Kappaphycus alvarezii) on the Growth, Yield and Nutrient uptake of Leafy Vegetable Amaranthus polygamous, Short communication. Tropical Agricultural Research Vol. 30 (3): 81–88
- Mapa, R.B., Gowthamy,P., Dassanayake,A.R., Gnanavelrajah, N and Kulasiri, A.H
- (2018). Characterization of soil physical properties of calcic red latasols and calcic yellow latasols in jafna peninsula of sri lanka and their applicability to agriculture. J.Soil Sci.Soc Sri Lanka 25:24 – 32
- Ratnayake, R.R., Karunaratne, S.B., Lessels, J.S., Yogenthiran, N., Rajapaksha, R.P.S.K. and Gnanavelrajah, N., 2016. Digital soil mapping of organic carbon concentration in paddy growing soils of Northern Sri Lanka. Geoderma Regional 7:167-176
- Ratnayake, R. R., T. Kugendren, and Gnanavelrajah, N (2014).Changes in soil carbon stocks under different agricultural management practices in North Sri Lanka. Journal of the National Science Foundation of Sri Lanka 42.1: 37-44.
- Sundaralingam, T., and Gnanavelrajah, N (2014).Phytoremediation Potential of Selected Plants for Nitrate and Phosphorus from Ground Water. International Journal of Phytoremediation 16.(3) : 275-284.
- Rajendra P. Shrestha , Dietrich Schmidt-Vogt , Nalina Gnanavelrajah, (2010) Relating plant diversity to biomass and soil erosion in a cultivated landscape of the eastern seaboard region of Thailand. Applied Geography doi:10.1016/j.apgeog.2010.01.005
- Sivasakthy, K and Gnanavelrajah, N (2010). Effect of neem (Azadirachtaindica) leaf on nitrification and selected properties of soil amended with different sources of nitrogen. Journal of Science and Management. 2: 26 -32
- Prasanthi, B., Loganathan, P and Gnanavelrajah, N (2010) Nitrate leaching column study in vegetable growing soil amended with gliricidia in Vavuniya district. Journal of Science and Management.,2: 12-17.
- Rajendra P. Shrestha and Nalina Gnanavelrajah (2009). Assessing Biophysical and Socioeconomic Condition for Watershed Management: Case of KhlongYai Watershed, Eastern Thailand. GMSARN International Journal 3 (4): 145 – 150.
- Gnanavelrajah, N., Shrestha, P.P., Schmidt-vogt, D and Samarakoon, L (2008) Carbon stock assessment and soil carbon management in Agricultural land-uses in Thailand. Land Degradation & Development 19 (3): 242 – 256
- Gnanavelrajah,N and Kumaragamage, D. (1999) Nitrogen leaching and plant response to nitrogen fertilizers as influenced by application of Neem (Azadirachtaindica A. juss) materials. Tropical Agricultural Research. (11): 30 – 42
- Gnanavelrajah, N and Kumaragamage, D. (1998) Effect of Neem (Azadirachtaindica A. juss) materials on nitrification of applied urea in three selected soils of SriLanka. Tropical Agricultural Research. (10) : 61 – 73
- Mohanadas, S and Gnanavelrajah, N (1994) Effect of different organic manures in combination with inorganic fertilizers on growth and yield of rice. Journal of Science (9): 23 – 28
Selected Publications in Conferences/workshops
- A.H.A.T.E. De Silva and N. Gnanavelrajah (2025). Wastewater grown microalgae as biofertilizers: a bibliometric analysis 2010-2023), Proceedings of the 13th YSF symposium, 25th January, 2025, Young Scientists Forum, National Science and Technology Commission, Sri Lanka.
- P.B.B.P. De Silva, N. Gnanavelrajah and S. Karunainathan (2025). Determination of optimum level of compost for organic onion production, Proceedings of the 13th YSF symposium, 25th January, 2025, Young Scientists Forum, National Science and Technology Commission, Sri Lanka.
- AMC Jayawardhana, N Gnanavelrajah, S Sivaneson, A Ponnegipprenthiraja (2025). Nostoc grown in parboiled effluent as a bio fertilizer in combination with inorganic fertilizers for paddy cultivation in the dry zone of Sri Lanka, Proceedings of the 4th International Symposium on Agriculture, Eastern University, Sri Lanka held on 6th March 2025.
- Kajeevan, A.F. Imthath Ahamed, N. Gnanavelrajah, A. Amirthalojanan and S.Sivanesan (2025). Evaluating the Potential of Organic Foliar Sprays on Growth and Yield of Brinjal (Solanum melongena L.) Under Integrated Plant Nutrient Management, Proceedings of the 4th International Symposium on Agriculture, Eastern University, Sri Lanka held on 6th March 2025.
- Rushanthi, N. Gnanavelrajah and R. Ratnayake (2025). Effect of Cyanobacteria Biofertilizer on Growth and Yield of Hydroponics Lettuce, Proceedings of the 4th International Symposium on Agriculture, Eastern University, Sri Lanka held on 6th March 2025.
- A Murugesapillai, K Kajeevan, N Gnanavelrajah (2025). Production of urea intercalated biochar from agricultural waste and evaluation of its potential benefits, Proceedings of the International Conference on Climate Change and Agriculture in Tropical Latitudes, The International Institute of Knowledge Management (TIIKM), held on May 2025.
- V Kirushnarajah, K Kajeevan, N Gnanavelrajah (2025). Synthesis of organic hydrogels and their effects on soil properties and seed germination, Proceedings of the International Conference on Climate Change and Agriculture in Tropical Latitudes, The International Institute of Knowledge Management (TIIKM), held on May 2025.
- De Silva, A.H.A.T.E.,Gnanavelrajah, N.,Ketheesan, B., Kajeevan, K.and Rivenderan, M. (2024). Formulation of a liquid organic fertilizer from Chlorella sp. Grown in dairy effluent. Proceedings of the 6th National Symposium on Agriculture 2024, Faculty of Agriculture, Eastern University, Sri Lanka, pp.38
- Thadshadini, S.; Kirisan, A.; Gnanavelrajah, N.(2024). Formulation of eco-friendly culture medium for cultivation of Spirulina platensis. International Conference on Multidisciplinary Research (ICMR 2024) Eastern University, Sri Lanka, Tamil Nadu Teachers Education University, India, and ESN Publications, India.pp.82
- Jayasekara, J., Gnanavelrajah, N and Ratnayake,R.R (2024). The potential of nostoc cultivated in parboiled effluent as a biofertilizer for paddy cultivation. Proceedings of International Symposium on Agriculture and Environment, University of Ruhuna.
- De Silva, A.H.A.T.E.,Gnanavelrajah, N.,Ketheesan, B. and Kajeevan, K (2024). Potential of chlorella sp. cultivated in dairy effluent as a complementary liquid organic fertilizer on growth and yield of finger millet (Eleusine coracana l.). Proceedings of International Symposium on Agriculture and Environment, University of Ruhuna
- Menaka, W.M., Kajeevan, K and Gnanavelrajah, N., Amirthalogan, A and Sivanesan, S (2024). Effect of vermicompost in combination with inorganic fertilizer and vermiwash on growth and yield of Amaranthus polygamous.
- Anushalini, R., Kajeevan, K., Gnanavelrajah, N. and Ketheesan, B. (2023). Effect of Chlorella sp. and combinations of selected nutrient sources on growth and yield of onion (Allium cepa L.). Proceedings of 11th Young Scientist Forum Symposium. Young Scientists Forum National Science and Technology commission, 27th January 2023, pp.96-100.
- Ruwanpathirana, P.S., Gnanavelrajah, N. and Ratnayake, R, R. (2023). Potential of Nostoc sp. as a biofertilizer on growth and Yield of paddy- Oryza sativa. Proceedings of 11th Young Scientist Forum Symposium. Young Scientists Forum National Science and Technology commission, 27th January 2023, pp.80-84.
- Hemamalini, S., Kirisan, A. and Gnanavelrajah, N. (2023). Formulation of alow- Cost medium for the cultivation of Spirulina. Proceedings of 3rd International Symposium on Agriculture, Faculty of Agriculture, Eastern University, Sri Lanka, 9th March 2023,pp. 201-204.
- Pushparaj, M. and Gnanavelrajah, N. (2023). Assessment on the quality of compost produced by commercial producers and the potential for compost production in Kilinochchi District. Proceedings of 3rd International Symposium on Agriculture, Faculty of Agriculture, Eastern University, Sri Lanka, 9th March 2023,pp. 181-184.
- M.L.A.A. Udarinee, M.L.A.A., Kajeevan, K. and Gnanavelrajah, N. (2023). Production of quality compost using underutilized residues and waste with Spirulina and panchagavya. Proceedings of 3rd International Symposium on Agriculture, Faculty of Agriculture, Eastern University, Sri Lanka, 9th March 2023,pp. 189-192.
- Kajeevan, K., Daniel, T. and Gnanavelrajah, N. (2023). Production of quality compost using locally available resources. Proceedings of 3rd International Symposium on Agriculture, Faculty of Agriculture, Eastern University, Sri Lanka, 9th March 2023,pp. 197-200.
- Gnanavelrajah, N., Sathasivam, T., Jeyavanan, K. and Raveendran, S. (2023). A Sustainable form of land use under Borassus flabellifer: A case study in Jaffna district of Sri Lanka. Proceedings of the International Forestry and Environment Symposium Volume 27 (2023). University of Sri Jayewardenepura, Sri Lanka, 27th- 28th January 2023, pp.113.
- Saththivel, P., Jeyakumar, K., Gnanavelrajah, N. and Ketheesan, B.(2022). Potential use of Chlorella sp. grown in wastewater on the growth and yield of Amaranthus sp. Proceedings of 4th International Conference of Agricultural Sciences (AgInsight 2022). Faculty of Agricultural Sciences, Subragamuwa University of Sri Lanka, 26th- 27th January 2022,pp.99-102.
- Rumana K, H., Jeyakumar, K., Gnanavelrajah, N. and Kirisan, A. (2022).Spirulina Sp. in combination with inorganic or organic fertilizers on growth and yield of okra (Abelmoschus esculentus L). Proceedings of 10th YSF Research Symposium – 2022. Young Scientist Forum and National Science and Technology Commission of Sri Lanka, 18th March 2022.
- Sribavan, S and Gnanavelrajah, N (2022). Efficacy of combining selected organic materials on the quality of compost produced at Jaffna municipal council recycling house. Proceeding of Jaffna Science Association. University of Jaffna, Sri Lanka, 23rd- 25th February 2022, pp.17.
- Saththivel, P., Jeyakumar, K., Gnanavelrajah, N. and Ketheesan, B. (2022). Potential use of Chlorella sp. grown in wastewater on the growth and yield of Amaranthus sp. Proceedings of 4th International Conference of Agricultural Sciences (AgInsight 2022). Faculty of Agricultural Sciences, Subragamuwa University of Sri Lanka, 26th- 27th January 2022, pp.99-102.
- Ruwangi, K.H.G., Jeyakumar,K.,Gnanavelrajah,N. and Ketheesan,B. (2022). Potential of using Chlorella sp. grown in parboiled effulent in combination with organic or inorganic fertilizers: Effects on growth and yield of brinijal (Solanum melongina). International Symposium on Agriculture and Environment 2022 University of Ruhuna, Sri Lanka.pp.40.
- Tharmarasa,H., Jeyalumar,K., Sivagnanasegram,K. and Gnanavelrajah,N. (2022). Selecting efficient treatments to phytoremediate nitrare contamination in well water, ex-situ, using lpomoea aquatica. International Symposium on Agriculture and Environment 2022 University of Ruhuna, Sri Lanka.pp.25.
- Jeyakumar, K and Gnanavelrajah, N. (2021). Evaluation of an Innovative Organic Fertilizer
- on Growth and Yield of Curry Chilli (Capsicum frutescens L.). Proceedings of 4th National
- Symposium on Agriculture (NSA 2021). Faculty of Agriculture, Eastern University, Sri
- Lanka, 10th March 2021, pp.39.
- Jeyakumar, K and Gnanavelrajah, N. (2021). Potential of selected underutilized organic residues and Azolla, Spirulina grown in wastewater as plant nutrient sources. Proceedings of International Symposium on Agriculture and Environment (ISAE 2021). Faculty of Agriculture, University of Ruhuna, Sri Lanka, 7th May 2021, pp.32.
- Jeyakumar, K and Gnanavelrajah, N. (2021). Different Organic Sources as Germination Enhancers of Selected Seeds and as Components of Fertilizer Formulation for a Test Crop. Proceedings of 4th International Research Conference of Uva Wellasa University (IRCUWU 2021). University of Uva Wellasa, Sri Lanka, 1st – 2nd July 2021, pp.10.
- Saththivel, P., Jeyakumar, K and Gnanavelrajah, N. (2021). Potential use of Chlorella sp. Grown in Parboiled Effluent on Growth and Yield of Water spinach (Ipomoea aquatic L.). Proceedings of 7th International Conference on Dry Zone Agriculture (ICDA 2021). Faculty of Agriculture, University of Jaffna, Sri Lanka, 3rd – 4th December 2021, pp.96.
- Pirushanthi. G, Kirisan. A. Priyatharshini, B, Gnanavelrajah, N and Ratnayake (2021). Production of Quality Compost Using Locally available waste incombination with Spirulina subsalsa. Proceedings of the Young Scientist Conference on Multidisciplinary Research -2021, pp (25).
- Abhiramy.K, Gnanavelrajah. N, and Ratnayake (2021). Nitrate removal potential of newly isolated Pseudomonas aeruginosa strain (A22) in a synthetic medium. Proceedings of 4th National Symposium on Agriculture (NSA 2021). Faculty of Agriculture, Eastern University, Sri Lanka, 10th March 2021, pp.40.
- Thamilini, R., Gnanavelrajah, N., Arasakesary, S.J and Amirthalojanan, A. 2020. An innovative liquid fertilizer to promote growth and yield responses of tomato (Lycopersicon esculentum Mill). Proceedings of the 9th YSF Symposium held on 13 November 2020. 197 – 201.
- Thamilini,R., Gnanavelrajah, N., Arasakesary, S.J and Amirthalojanan, A (2020). Assessing the nutrients use efficiency of Tomato (Lycopersicon esculentum.Mill) with different organic and inorganic fertilizer treatments. Proceedings of the Annual sessions of Jaffna Science association held on 23 October 2020.
- Kalaivani, S and Gnanavelrajah, N. 2020. Formulation of Organic Liquid Fertilizers and their Effects onGermination of Selected Seeds and Growth and Yield of Chilli (Capsicum frutescens L.). 6th International Conference on Dry Zone Agriculture (ICDA 2020) held on 3rd – 4th December 2020 at the Faculty of agriculture, University of Jaffna, Sri Lanka. pp.85.
- Kasthuri, J., Abhiramy, K. and Gnanavelrajah, N. 2020. Potential to Grow Organic Nitrogen Sources Spirulina and Azolla in Different Wastewater. International Poster Presentation Competition (IPPC) 2020. Organized by NYAB, INYAS, SLAYS and TYSA held in September – October 2020.
- Thurairajah.A, Gnanavelrajah.N and Ratnayake (2019). A Newly Isolated Aerobic Bacterial Strain (Paenibacillus polymyxa) Towards Remediation of Nitrate Pollution of Water. Proceedings of the 8th YSF Symposium, January 2019, pp -123-128.
- Shayanthan, A., Gnanavelrajah, N and Rajapaksha, R.M.C.P. (2019). Effect of Bacterial Inoculation on Growth and Yield of Onion (Allium cepa L.) in Kilinochchi Under Greenhouse Conditions. Proceedings of the International symposium on agriculture and environment 2019 held at Faculty of Agriculture, University of Ruhuna, Sri Lanka pp 91
- Nareshkumar,S Gnanavelrajah, N and Raveendran, S (2019). “Assessment of Palmyrah Palm Distribution and Density in East and South East of Valikamam Region in Jaffna Peninsula Using Very High Resolution Satellite Images” International Symposium on Agriculture-2019 (ISA-2019) Faculty of Agriculture, Eastern University, Sri Lanka., held on 9th January 2019.pp
- Neilagini, P., Shayanthan, A., Gnanavelrajah, N., Rajapaksha, R.M.C.P., Arasakesary, S.J. and Amirthalojanan, A., (2019). Performance of Plant Growth Promoting Rhizobacteria on Cluster Onion (Allium cepa L.) under Field Condition. Proceedings of the 5th International Conference on Dry zone Agriculture held during 19th and 20th December 2019, 5: 79.
- Priyatharshini, B., Gnanavelrajah, N. and Ratnayake, R.R., (2019). The potential use of Cyanobacteria as biofertilizer for rice variety BG-251. Proceedings of the 5th International Conference on Dry zone Agriculture held during 19th and 20th December 2019, Faculty of Agriculture, University of Jaffna 5: 81.
Awards
SUSRED Award 2020
- Awarded Support Scheme for Supervision of Research Degrees (SUSRED) – 2020 in recognition of the supervision of MPhil titled “Isolation of Denitrifying Bacteria and their potential use in Nitrate removal from well water of Jaffna District”. Awarded on 10th July 2023
Outreach Activities
- National Steering Committee (NSC) member of the Global Environment Facility/Small Grants Programme for Operational Phase VI and VII – (2021-2024) of the United Nations Development Programme
- Resource person for several outreach activities for Agriculture Department staff, farmers, teachers and NGOs in different topics: GIS applications for land management, Sustainable soil fertility management, Quality compost production, Measurement of Carbon sequestration etc