Conference Presentations (32 Total)

  1. Phuyal, D.*, Nair, V. D., Sadeghibaniani S., Vardanyan, L., Sandoya, G., Hailegnaw, N., & Birhan D. Refining Phosphorus Diagnostics in Organic Soils: Bridging Agronomic Needs and Water Quality Goals.
    10th biennial UF Water Institute Symposium Gainesville, Florida. February 24-26 Poster Presentation [Link]
  2. Portmess, A.*, Ballou, J., Phuyal, D., Vardanyan, L., Sandoya, G., Hailegnaw, N., & Nair, V. D. Water Quality Impacts of Phosphorus from Soil Amendments in Florida’s Sandy Soils.
    10th biennial UF Water Institute Symposium Gainesville, Florida. February 24-26 Poster Presentation [Link]
  3. Phuyal, D.*, Nair, V. D., Kadyampakeni, D. M., Atta, A. A., & Vardanyan, L. (2025). Soil Phosphorus Storage Capacity and Bioavailable Phosphorus Indicators as Predictors of Citrus Yield in Florida Soils.
    ASA, CSSA, SSSA International Annual Meeting Salt Lake City, UT, November 9-12 Poster Presentation [Link]
  4. Nair, D. V.*, Vardanyan, L., & Phuyal, D. (2025). Optimizing Phosphorus Management: Regional Assessment of Extraction Methods in Florida’s Acid-Mineral Soils.
    ASA, CSSA, SSSA International Annual Meeting Salt Lake City, UT, November 9-12 Oral Presentation [Link]
  5. Okumoto, S.*, Maharjan, B. K., Jeong, U., Leon, F., Rooney, W., Baerson, S., Rajan, N., & Phuyal, D. (2025). Enhancing Biological Nitrification Inhibition Activities in Sorghum.
    ASA, CSSA, SSSA International Annual Meeting Salt Lake City, UT, November 9-12 Oral Presentation [Link]
  6. Gomez, C.*, Miyanaka, N., Salehin, S. M. U., Phuyal, D., Antony-Babu, S., Okumoto, S., Rooney, W. L., & Rajan, N. (2025). Reducing Nitrogen Loss in Sorghum Cropping Systems through Biological Nitrification Inhibition (BNI).
    ASA, CSSA, SSSA International Annual Meeting Salt Lake City, UT, November 9-12 Oral Presentation (1st Prize) 1st Prize Medal [Link]
  7. Gomez, C.*, Yuan, P., Miyanaka, N., Salehin, S. M. U., Phuyal, D., Rooney, W. L., Okumoto, S., Antony-Babu, S., & Rajan, N. (2025). Reducing Nitrate Leaching through Nitrogen Retention Using Biological Nitrification Inhibition (BNI) in Sorghum.
    ASA, CSSA, SSSA International Annual Meeting Salt Lake City, UT, November 9-12 Poster Presentation (1st Prize) 1st Prize Medal [Link]
  8. Phuyal, D.*, Rajan, N., Rooney, W. L., Antony-Babu, S., Okumoto, S., Peiguo, Y., Casey, K. D., & Subbarao, G. V. (2024). Evidence for Biological Nitrification Inhibition Activity of Sorghum (Sorghum bicolor) at Field: Implications for Climate Change and Agriculture.
    ASA, CSSA, SSSA International Annual Meeting San Antonio, TX, November 10-13 Oral Presentation [Link]
  9. Phuyal, D.*, Rajan, N., Rooney, W. L., Antony-Babu, S., Okumoto, S., Peiguo, Y., Casey, K. D., & Subbarao, G. V. (2024). Genotype and Soil Interactions on Biological Nitrification Inhibition Activity of Sorghum (Sorghum bicolor).
    ASA, CSSA, SSSA International Annual Meeting San Antonio, TX, November 10-13 Oral Presentation [Link]
  10. Gomez, C.*, Phuyal, D., Miyanaka, N., Salehin, S. M. U., Rooney, W. L., Okumoto, S., & Rajan, N. (2024). The Effect of Fertilizer Type and Genotype on Biological Nitrification Inhibition Expression of Sorghum Under Field Conditions.
    ASA, CSSA, SSSA International Annual Meeting San Antonio, TX, November 10-13 Poster Presentation [Link]
  11. Phuyal, D.*, Rajan, N., Rooney, W. L., Antony-Babu, S., Casey, K. D., Okumoto, S., & Subbarao, G. V. (2023). Exploring the Impact of Sorghum BNI Activity: Implications for Climate Change and Agriculture.
    ASA, CSSA, SSSA International Annual Meeting St Louis, MO, 29 October to 1 November Oral Presentation (1st Prize) 1st Prize Medal [Link]
  12. Phuyal, D.*, Rajan, N., Rooney, W. L., Antony-Babu, S., Casey, K. D., Okumoto, S., & Subbarao, G. V. (2023). Impact of Nitrogen Fertilizer Sources on Biological Nitrification Inhibition Activity of Sorghum.
    ASA, CSSA, SSSA International Annual Meeting St Louis, MO, 29 October to 1 November Oral Presentation [Link]
  13. Schill, M. L.*, Subramanian, N. K., Phuyal, D., Rajan, N., & Bagavathiannan, M. (2023). Sorghum halepense Promotes Biological Nitrification Inhibition in Its Rhizosphere.
    ASA, CSSA, SSSA International Annual Meeting St Louis, MO, 29 October to 1 November Poster Presentation [Link]
  14. Schill, M. L.*, Phuyal, D., Chobhe, K., Rajan, N., Ibrahim, A., & Bagavathiannan, M. (2023). Investigating the Biological Nitrification Inhibition Potential in Avena sativa Cultivars.
    ASA, CSSA, SSSA International Annual Meeting St Louis, MO, 29 October to 1 November Oral Presentation (3rd Prize) 3rd Prize Medal [Link]
  15. Phuyal, D.*, Rajan, N., Rooney, W. L., Antony-Babu, S., Casey, K. D., Zapata, D., Schill, M., Subramanian, N. K., Salehin, S. M. U., Maharjan, B. K., Okumoto, S., & Subbarao, G. V. (2022). Biological Nitrification Inhibition Activity of Sorghum Genotypes with Differential Sorgoleone Secretion Capacity.
    ASA, CSSA, SSSA International Annual Meeting Baltimore, MD, 6-9 November Oral Presentation [Link]
  16. Phuyal, D.*, Rajan, N., Rooney, W. L., Antony-Babu, S., Schill, M., Subramanian, N. K., Okumoto, S., & Subbarao, G. V. (2022). Effect of Biological Nitrification Inhibition Activity of Sorghum Genotypes on Nitrification in a Field Study.
    ASA, CSSA, SSSA International Annual Meeting Baltimore, MD, 6-9 November Poster Presentation (2nd Prize) 2nd Prize Medal [Link]
  17. Schill, M. L.*, Phuyal, D., Maharjan, B. K., Rajan, N., Subramanian, N. K., & Bagavathiannan, M. (2022). Biological Nitrification Inhibition Potential Improves Nitrogen Availability in Johnsongrass (Sorghum halepense) Rhizosphere.
    ASA, CSSA, SSSA International Annual Meeting Baltimore, MD, 6-9 November Oral Presentation [Link]
  18. Phuyal, D.*, Rajan, N., Rooney, W. (2022). Sorghum Genotypes with Contrasting Sorgoleone Secretion Convey Varying Biological Nitrification Inhibition (BNI) Activity in Acidic Soil.
    8th Annual Texas A&M Plant Breeding Symposium College Station, TX, 17 February Poster Presentation [Link]
  19. Ghosh, E.*, Rajan, N., Phuyal, D., Bagavathiannan, M., Subramanian, N. (2022). Preliminary Investigation of Biological Nitrification Inhibition (BNI) Potential in Johnsongrass (Sorghum halepense).
    62nd Meeting of Weed Science Society of America Virtual Meeting, 22-24 February Poster Presentation (1st Prize) 1st Prize Medal [Link]
  20. Phuyal, D.*, Rajan, N., Schnell, R., Rooney, W., Maharjan, B., Casey, K., Zapata, D., Okumoto, S., Subramanian, N., Kim, J., Chu, K. H., Peterson, J. A., & Subbarao, G. V. (2021). Biological Nitrification Inhibition (BNI) Activity of Sorghum Genotypes on a Typical Field Soil.
    ASA, CSSA, SSSA International Annual Meetings Salt Lake City, UT, 7-10 November Oral Presentation [Link]
  21. Phuyal, D.*, Rajan, N., Schnell, R., Salehin, S. M., Casey, K., Rooney, W., Maharjan, B., Okumoto, S., & Subbarao, G. V. (2021). Effect of Biological Nitrification Inhibition of Sorghum on Nitrous Oxide Emission Under Different Nitrogen Fertilizer Types.
    ASA, CSSA, SSSA International Annual Meetings Salt Lake City, UT, 7-10 November Poster Presentation [Link]
  22. Rajan, N.*, Phuyal, D., Maharjan, B., Okumoto, S., Casey, K., Subramanian, N., Peterson, J. A., Bagavathiannan, M., Jifon, J., Rooney, W., Schnell, R., & Subbarao, G. V. (2020). Climate Solutions: Biological Nitrification Inhibition in Modern Crop Varieties.
    AGU Virtual Meeting Virtual, 15 December 2020 Oral Presentation [Link]
  23. Phuyal, D.*, Rajan, N., Rooney, W., Kim, J., Chu, K. H., Subramanian, N., Maharjan, B., Okumoto, S., Schnell, R., Peterson, J. A., & Subbarao, G. V. (2020). Effect of Biological Nitrification Inhibition (BNI) of Sorghum on Weswood Silt Loam Soil.
    Texas Plant Protection Conference Virtual, 8 December 2020 Poster Presentation [Link]
  24. Phuyal, D.*, Rajan, N., Rooney, W., Kim, J., Chu, K. H., Subramanian, N., Maharjan, B., Okumoto, S., Schnell, R., Peterson, J. A., & Subbarao, G. V. (2020). Climate Smart Farming: A Preliminary Investigation of Biological Nitrification Inhibition (BNI) in Selected Sorghum Genotypes.
    ASA, CSSA, SSSA International Annual Meetings Virtual, 9-13 November 2020 Poster Presentation (2nd Prize) 2nd Prize Medal [Link]
  25. Phuyal, D.*, Nogueira, T. A. R., Jani, A. D., Kadyampakeni, D., Morgan, K., & Ferrarezi, R. S. (2020). Tree Density and Soil Micronutrient Application Using Controlled-release Fertilizer on Grapefruit Affected by Huanglongbing.
    American Society for Horticultural Science Annual Conference Orlando, FL, 9-13 August 2020 Poster Presentation [Link]
  26. Phuyal, D.*, Nogueira, T. A. R., Jani, A. D., Kadyampakeni, D., Morgan, K., & Ferrarezi, R. S. (2020). Effect of Tree Planting Density and Nutrient Application by Soil and Foliar on Grapefruit Trees Affected by Huanglongbing.
    American Society for Horticultural Science Annual Conference Orlando, FL, 9-13 August 2020 Oral Presentation [Link]
  27. Rajan, N.*, Maharjan, B., Okumoto, S., Phuyal, D., Casey, K., Subramanian, N., Peterson, J. A., Bagavathiannan, M., Jifon, J., Rooney, W., Schnell, R., & Subbarao, G. V. (2020). Biological Nitrification Inhibition in Sorghum: A Forgotten Trait with Potential for Greenhouse Gas Mitigation.
    5th Annual Meeting of the Soil Health Institute 30 July 2020 Oral Presentation [Link]
  28. Ferrarezi, R. S.*, Phuyal, D., Kadyampakeni, D., & Morgan, K. T. (2019). Can Higher Planting Density and Enhanced Fertilization Increase Fruit Yield of HLB-infected Grapefruit?
    Materials Innovation for Sustainable Agriculture Center of Excellence Orlando, FL, 24 October 2019 Oral Presentation [Link]
  29. Ferrarezi, R. S.*, Phuyal, D., Kadyampakeni, D., & Morgan, K. T. (2019). Grapefruit Nutritional Research in the Indian River District.
    IRREC Citrus Nutrition Management Day Fort Pierce, FL, 20 October 2019 Oral Presentation [Link]
  30. Phuyal, D.*, Ferrarezi, R. S., Morgan, K. T., & Kadyampakeni, D. (2019). Tree Density and Micronutrient Application on Grapefruit Affected by Huanglongbing.
    American Society for Horticultural Science Annual Conference Las Vegas, NV, 21-25 July 2019 Oral Presentation [Link]
  31. Phuyal, D.*, Ferrarezi, R. S., Morgan, K. T., & Kadyampakeni, D. M. (2019). Assessment of Different Grapefruit Tree Spacing on Tree Health, Fruit Quality, and Fruit Yield.
    7th Annual South Florida Graduate Research Symposium Homestead, FL, 16 July 2019 Poster Presentation [Link]
  32. Phuyal, D.*, Ferrarezi, R. S., Morgan, K. T., & Kadyampakeni, D. (2019). Nutrient Management on HLB-affected Grapefruit on Flatwoods Soil in the Indian River District.
    Florida State Horticultural Society 132nd Annual Conference Orlando, FL, 9-11 June 2019 Oral Presentation [Link]

Invited Presentation

  1. Phuyal, D*. and Rajan, N. (2022). Update on Sorghum BNI Research at Texas A&M.
    The 4th Biennial Meeting organized by Japan International Research Center for Agricultural Sciences Tsukuba, JAPAN, 17 November to 19 November Oral Presentation [Link]

Special Invitation

  1. Phuyal, D. (2025). Student Commencement Speaker, Texas A&M University, College of Agriculture and Life Sciences: Selected to deliver the Ph.D. appreciation speech at the graduation ceremony.
    Special Invitation Texas A&M University, College of Agriculture and Life Sciences Student Commencement Speaker [Link]