Bhatnagar, A.K., Vallika Devi, K. & Kumar, P. Sultanpur National Park - A Wetland under Threat. In National Seminar on Water for Life, University of Jammu, Jammu: 34 (Abstract). September 16-17, 1995. (Also served as a Session Chairman).
Singh, V.P. & Bhatnagar, A.K. Role of microbes in waste utilization. In First International Symposium on Microbial Exploitation, International Society for Conservation of National Resources, Varanasi, March 13-16. 1996.
Neelu., Kaur, I., Kumar, M. & Bhatnagar A.K. Effect of enhanced cadmium in soil on growth and development of Vicia faba Linn. In National Symposium on Toxicology and Environmental Health, Jamia hamdard, New Delhi, November 20-21. 1998.
Tomar, M., Kaur, I., Kumar, M. & Bhatnagar, A.K. Impact of enhanced lead in Soil on growth and development of Vigna radiata (Linn.) Wilczek. In National Seminar On Plant Genetic Diversity: Evaluation and Conservation, Department of Botany, Panjab University, Chandigarh February 22-23. 1999.
Koul, M., Neelu & Bhatnagar, A.K. Accumulation and impact of lead in soil on growth and development of Cymopsis tetragonoloba (Linn.) Tabu. : In National Seminar on Plant Physiology at Interface of Agri - Horticulture and Industry Agricultural University, Udaipur, December 30, 1999- January 1, 2000.
Luikham, N., Tomar, M. & Bhatnagar, A.K. Accumulation and Effect of Enhanced lead in soil on Abelmoschus esculentus (Linn.) Monech. In National Seminar on Plant Physiology at Interface of Agri-Horticulture and Industry Agricultural University, Udaipur, December 30, 1999- January 1, 2000.
Kapoor, R., Bhatnagar, A.K. & Raina, S.N. Role of Mycorrhiza in conservation of Podophyllum hexandrum.: In Golden Jubilee Symposium on Biotechnological Innovations in Conservation and Analysis of Plant Diversity, New Delhi, February 7-9. 2001.
Rawat, A., Bhatnagar, A.K. & Singh, A.K. Biochemical changes in the antigenic extracts of the pollen exposed to pollutants (SO2 and NO2). 23. In Golden Jubilee Symposium on Biotechnological Innovations in Conservation and Analysis of Plant Diversity, New Delhi, February 7-9. 2001.
Tomar, M., & Bhatnagar, A.K. Seed deterioration in rapeseed-mustard due to poor storage conditions. In Conference on Health and Dietary Aspects of Mustard Oil. Organized by Mustard Research & Promotion Consortium. Kolkata. April 21. 2001.
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