Publications
This page brings together all of our lab's knowledge outputs: peer-reviewed research articles sharing our scientific findings; UF/IFAS EDIS extension publications that turn research into practical, grower-friendly guides; annual variety trial fact sheets reporting results from our cotton, corn, and soybean evaluations; and STEP Cotton annual reports summarizing our outreach and education efforts.
Browse by year or category to find the latest studies, trial evaluations, and program summaries.
Research Publications
2025
Wang, X., de Sá Leitão, D.A.H., Reisinger, A.J., Singh, H., Sharma, L. and Lin, Y. (2025) Drainage volume drives dissolved organic matter leaching loss in a corn system. Science of The Total Environment, 1006, p.180880. https://doi.org/10.1016/j.scitotenv.2025.180880
Singh, R., Sharma, L., Singh, H. and Zotarelli, L. (2025) Remote sensing and machine learning for irrigation management in Potato cultivation: A systematic review. American Journal of Potato Research, pp.1-16. https://doi.org/10.1007/s12230-025-10029-3
Katoch, K., Arruda Huggins de Sá Leitão, D., Birhan, D.A., Singh, S., Singh, R., Singh, R., Williams, S.L., Crain, A., Kumar, S., Sandhu, H.S. and Singh, H. (2025) Optimizing nitrogen fertilizer recommendations for field corn grown in Florida sandy soils. Agronomy Journal, 117(5), p.e70178. https://doi.org/10.1002/agj2.70178
Singh, R., Singh, R., Singh, S., Sharma, A.K., Sidhu, S.K., Katoch, K., Zotarelli, L., Singh, H., Bhadha, J.H. and Sharma, L.K. (2025) Effect of co‐application of microbial biostimulant with different phosphorus rates in potatoes. Agronomy Journal, 117(5), p.e70184. https://doi.org/10.1002/agj2.70184
Dar, E.A., Omara, P., Iboyi, J.E., Mulvaney, M.J., Carter, E., Tillman, B., Sharma, L. and Singh, H. (2025) Nitrogen rate optimization for irrigated cotton in Florida. Agronomy Journal, 117(6), p.e70221. https://doi.org/10.1002/agj2.70221
Grabau, Z.J., Sandoval‐Ruiz, R., Singh, S., Thoms, M.F., Liu, C., Oyetunde, A.K. and Singh, H. (2025) Resistant peanut cultivars reduce peanut root‐knot nematode infestation in field production. Agronomy Journal, 117(6), p.e70249. https://doi.org/10.1002/agj2.70249
Birhan, D.A., de Sã Leitão, D.A.H., Dias, H.B., Hopf, A., Singh, H., Hoogenboom, G., Katoch, K. and Sharma, L.K. (2025) Optimizing and applying the CSM-CERES-Maize model for enhanced maize yield and nitrogen management in Florida sandy soils. Computers and Electronics in Agriculture, 239, p.111111. https://doi.org/10.1016/j.compag.2025.111111
Jesmin, T., Rabbany, A., Sharma, L., Griffin, W., Upadhyaya, Y.R., Singh, H., Kaur, N., Brym, Z., Serrano, T., Williams, A. and Bhadha, J.H. (2025) Evaluating the effects of industrial hemp cultivation on soil quality in Florida. Agrosystems, Geosciences & Environment, 8(4), p.e70231. https://doi.org/10.1002/agg2.70231
Singh, A., Singh, R., Singh, K., Upadhyaya, Y.R., Sharma, A.K., Brym, Z., Sharma, L.K. and Singh, H., (2025) Estimating plant height, nitrogen uptake and above-ground biomass using UAV multispectral imaging coupled with machine learning in industrial hemp (Cannabis sativa L.). Industrial Crops and Products, 237, p.122130. https://doi.org/10.1016/j.indcrop.2025.122130
Sharma, A.S., Lesmes-Vesga, R.A., Kaur, S., Singh, H. and Sandhu, H.S., 2025. Effect of energycane integration on ground-dwelling arthropod biodiversity in a sugarcane-sweet corn cropping system. Agronomy, 15(7), p.1685. https://doi.org/10.3390/agronomy15071685
Singh K., Dar, E.A., Singh S., Shah A., Sharma L., Singh H. (2025) Subsurface banding increases ammonia emissions under rainfed cotton in Florida sandy soils. Frontiers in Agronomy, 7:1625163. https://doi.org/10.3389/fagro.2025.1625163
Sharma, R.K., Nwosu, N., Singh, L., Kramer, A., Singh, H., Bheemanahalli, R., Dhillon, J. (2025) Agricultural sustainability under unpredicted atmospheric changes—strategies to enhance crop resilience and system efficiency: a narrative review. Discover Agriculture, 3(1), p.124. https://doi.org/10.1007/s44279-025-00287-4
Singh, R., Kaur, S., Joshi, D.R., Iboyi, J., Dar, E., Sharma, L.K., Singh, H. (2025) Estimating cotton biomass and nitrogen content using high-resolution Satellite and UAV data fusion with machine learning. Smart Agricultural Technology, 12, p.101191. https://doi.org/10.1016/j.atech.2025.101191
Singh K., Dar, E.A., Singh S., Shah A., Sharma L., Singh H. (2025) Enhanced efficiency nitrogen fertilizers reduced ammonia emissions in rainfed cotton. Journal of Sustainable Agriculture and Environment, 4(3), p.e70084. https://doi.org/10.1002/sae2.70084
Singh, R., Kaur S., Singh, R., Singh, S., Sharma A., Sidhu, S.K., Kutoch, K., Zotarelli, L., Singh, H., Bhadha, J., Sharma, L. (2025) Advancing prediction of biophysical and biochemical traits in potatoes using hyperspectral data and artificial intelligence. Agronomy Journal, 117(5), p.e70172. https://doi.org/10.1002/agj2.70172
Ajani O.A., Mathew S., Singh H., Upadhyaya Y.R., Daramola O.S., Nwosu N.J., Brecke B.J., Brym Z.T., Sharma L., and Devkota P. Response of industrial hemp (Cannabis sativa L.) to preemergence herbicides and weed control under different nitrogen fertilization. Journal of Crop Improvement, 39(5), pp.425-447. https://doi.org/10.1080/15427528.2025.2557902
Daramola, O.S., MacDonald, G.E., Kanissery, R.G., Tillman, B.L., Singh, H. and Devkota, P. (2025) Implications of cereal rye cover crop termination timing and residue management on Palmer amaranth (Amaranthus palmeri) and sicklepod (Senna obtusifolia) control in peanut. Weed Technology, 39:e106 https://doi.org/10.1017/wet.2025.10049
Daramola, O.S., MacDonald, G.E., Kanissery, R.G., Tillman, B.L., Singh, H., Oluseyi, A.A., and
Devkota, P. (2025) Evaluation of pre-emergence and post-emergence herbicide programs used in peanut (Arachis hypogaea) for Benghal Dayflower (Commelina benghalensis) control. Peanut Science 52(1), p.121-128. https://doi.org/10.3146/0095-3679-52.1-PS1646
Calixto, E.S., Singh, H. and Paula-Moraes, S.V. (2025). Management of corn earworm using Bt corn hybrids, 2024. Arthropod Management Tests, 50(1), p.tsaf083. https://doi.org/10.1093/amt/tsaf083
Hopf, A., Boote, K. J., Upadhyaya, Y., Singh, H., Mulvaney, M. J., Kaur, N., Sharma, L. K., Brym, Z., Watson, J. A., and Hoogenboom, G. (2025). Adaptation of the process-based CSM-CROPGRO model to simulate the growth and development of industrial hemp for seed and fiber production. Agrosystems, Geosciences & Environment, 8(2), p.e70145. https://doi.org/10.1002/agg2.70145
Singh, K., Singh, R., Nwosu, N.J., Omara, P., Sharma, L., Dunn, B.L. and Singh, H. (2025) Optimizing nutrient delivery in agronomic crops: A review of enhanced efficiency fertilizers. Journal of Plant Nutrition and Soil Science. 188: 570-584. https://doi.org/10.1002/jpln.12010
Bajwa, P., Saini, R., Singh, S., Makkar, J., Trostle, C. and Singh, H. (2025) Effect of early and late post emergence herbicides on weed suppression, crop injury, and biomass yield of industrial hemp in semiarid conditions. Agrosystems, Geosciences & Environment, 8(1), p.e70078. https://doi.org/10.1002/agg2.70078
Dar, E.A., Omara, P., Iboyi, J.E., Mulvaney, M.J., Carter, E., Wood, C.W., Sharma, L. and Singh, H. (2025) Optimizing nitrogen rates for rainfed cotton on sandy loam soils of Florida. Agronomy Journal, 117(2), p.e70046. https://doi.org/10.1002/agj2.70046
Serrano, T., Brym, Z.T., Monserrate, L.A., Her, Y.G., Stanford, J., Bhadha, J.H., Singh, H., Sharma, L.K., Upadhyaya, Y.R., Griffin, W.D. and Shellenbarger, H.T. (2025). Nitrogen fertilizer effects on hemp biomass production detected by drone-based spectral imaging. HortScience, 60(3), pp.353-361. https://doi.org/10.21273/HORTSCI18264-24
Nwosu, N.J., Upadhyaya, Y.R., Kaur, N., Sharma, L., Brym, Z. and Singh, H. (2025). Limited effects of phosphorus application on growth and yield of industrial hemp in Florida. Agrosystems, Geosciences & Environment, 8(1), p.e70077. https://doi.org/10.1002/agg2.70077
Kaur, N., Sharma, A.K., Shellenbarger, H., Griffin, W., Serrano, T., Brym, Z., Singh, A., Singh, H., Sandhu, H. and Sharma, L.K. (2025). Drone and handheld sensors for hemp: Evaluating NDVI and NDRE in relation to nitrogen application and crop yield. Agrosystems, Geosciences & Environment, 8(1), p.e70075. https://doi.org/10.1002/agg2.70075
2024
Calixto, E. S., Singh, H., & Paula‐Moraes, S. V. (2024). Impact of cultural control practices and fertilization on snail abundance and peanut yield. Agricultural & Environmental Letters, 9(2), e70004. https://doi.org/10.1002/ael2.70004
Singh, H., Mulvaney, M. J., Bashyal, M., & Singh, K. (2024). Prohexadione calcium applications increase peanut peg strength. Agronomy Journal, 116(6), 3108-3116. https://doi.org/10.1002/agj2.21682
Singh, S., Singh, R., Singh, K., Katoch, K., Zaeen, A. A., Birhan, D. A., ... & Sahrma, L. K. (2024). Smart fertilizer technologies: An environmental impact assessment for sustainable agriculture. Smart Agricultural Technology, 100504. https://doi.org/10.1016/j.atech.2024.100504
Lamichhane, B., Dunn, B. L., Singh, H., Kumar, A., & Norwood, B. (2024). Determining eastern red cedar biochar soilless media supplementation rates for potted ornamental kale and chrysanthemum production. HortScience, 59(6), 777-786.
Lamichhane, B., Dunn, B. L., Singh, H., Kumar, A., & Norwood, F. B. (2024). Determining Eastern Red Cedar Biochar Soilless-Media Supplementation Rates for Potted Geranium and Petunia Production. Horticulturae, 10(5), 467. https://doi.org/10.3390/horticulturae10050467
Nwosu, N. J., Oshunsanya, S. O., Okon, P. B., Isong, I. A., Adetuga, A. T., & Singh, H. (2024). Sustainable Regenerative Practices for Land Restoration and Climate Change Management in the Tropics. In Handbook of Nature-Based Solutions to Mitigation and Adaptation to Climate Change (pp. 1-25). Cham: Springer International Publishing. https://link.springer.com/rwe/10.1007/978-3-030-98067-2_119-1
Singh, H., Northup, B. K., Gowda, P. H., Omara, P., Baath, G. S., & Prasad, P. V. (2024). Moth bean and tepary bean as green nitrogen sources in intensive winter wheat cropping systems. Journal of Agriculture and Food Research, 15, 100938. https://doi.org/10.1016/j.jafr.2023.100938
Singh, R., Kaur, S., Bhullar, S. S., Singh, H., & Sharma, L. K. (2024). Bacterial biostimulants for climate smart agriculture practices: Mode of action, effect on plant growth and roadmap for commercial products. Journal of Sustainable Agriculture and Environment, 3(1), e12085. https://doi.org/10.1002/sae2.12085
Daramola, O. S., MacDonald, G. E., Kanissery, R. G., Tillman, B. L., Singh, H., Ajani, O. A., & Devkota, P. (2024). Implications of planting date on Benghal dayflower (Commelina benghalensis L.) and sicklepod (Senna obtusifolia L.) management in peanut. Weed Technology, 38, e66. https://doi.org/10.1017/wet.2024.50
Daramola, O. S., MacDonald, G. E., Kanissery, R. G., Tillman, B. L., Singh, H., Ajani, O. A., & Devkota, P. (2024). Effect of planting pattern and herbicide programs on sicklepod (Senna obtusifolia L.) control in peanut. Weed Technology, 38, e53. https://doi.org/10.1017/wet.2024.64
Daramola, O. S., MacDonald, G. E., Kanissery, R. G., Tillman, B. L., Singh, H., & Devkota, P. (2024). Influence of carrier water pH and hardness on imazapic efficacy for sicklepod (Senna obtusifolia L.) control in peanut. Weed Technology, 38, e18. https://doi.org/10.1017/wet.2023.96
Daramola, O. S., Iboyi, J. E., MacDonald, G. E., Kanissery, R. G., Tillman, B. L., Singh, H., & Devkota, P. (2024). A systematic review of chemical weed management in peanut (Arachis hypogaea) in the United States: challenges and opportunities. Weed Science, 72(1), 5-29. https://doi.org/10.1017/wsc.2023.71
Extension Publications
2025
Shah, A., Singh, H., Sharma, L., Carter, E., & Morata, G. (2025). Petiole Sampling as a Tool for In-Season Nitrogen Management in Cotton: SS-AGR-491/AG489, 6/2025. EDIS, 2025(4). https://doi.org/10.32473/edis-ag489-2025
Sharma, L. K., Leitão, D. A. D. S., & Singh, H. (2025). Unlocking the Potential of Technology: Estimating Nitrogen Requirement in Corn Using Optical Sensors: SL526/SS740, 1/2025. EDIS, 2025(1). https://doi.org/10.32473/edis-ss740-2025.
Singh, S., Thoms, M., Singh, H., Tillman, B., Matcham, E., & Carter, E. (2025). Calcium Fertilization in Peanuts: Importance, Sources, and Considerations: SS-AGR-487/AG482, 2/2025. EDIS, 2025(1). https://doi.org/10.32473/edis-ag482-2025
Sharma, L. K., Sidhu, S. K., Zotarelli, L., & Singh, H. (2025). Why Potassium Is Important for Potatoes: SL518/SS731, 2/2025. EDIS, 2025(1). https://doi.org/10.32473/edis-ss731-2025.
2024
Sharma, L. K., Singh, R., Sharma, A. K., & Singh, H. (2024). Understanding Soil Fertility from an Urban Grower Perspective: SL524/SS737, 11/2024. EDIS, 2024(6). https://doi.org/10.32473/edis-ss737-2024
Sharma, L. K., Singh, H., & Obreza, T. A. (2024). When to Lime Soil and Liming Products Available in Florida: SL519/SS732, 11/2024. EDIS, 2024(6). https://doi.org/10.32473/edis-ss732-2024
Brym, Z., Sharma, L., Obreza, T., & Mylavarapu, R. (2024). UF/IFAS Nutrient Management Recommendation Series: Hemp: SL521/SS734, 8/2024. EDIS, 2024(4). https://doi.org/10.32473/edis-ss734-2024
Nwosu, N., Singh, H., Brym, Z., Sharma, L., Carter, E., Revynthi, A. M., & Osborne, L. (2024). Fire Ants Management in Industrial Hemp: SS-AGR-481/AG477, 5/2024. EDIS, 2024(3). https://doi.org/10.32473/edis-ag477-2024
Sharma, L., Khanna, R., & Singh, H. (2024). Developing a Web-based Agro-Application: SL513/SS726, 4/2024. EDIS, 2024(2). https://doi.org/10.32473/edis-SS726-2024
Singh, K., Singh, H., Omara, P., Nwosu, N. J., Bearden, J., Singh, R., & Sharma, L. K. (2024). Potassium Deficiency in Cotton: Causes, Symptoms, and Considerations: SS-AGR-479/AG475, 1/2024. EDIS, 2024(1). https://doi.org/10.32473/edis-ag475-2024
2023
Singh, H., Carter, E., Sharma, L., Sidhu, S., & Omara, P. (2023). Sulfur deficiency in cotton: Causes, symptoms, and considerations: SS-AGR-478/AG474, 11/2023. EDIS, 2023(6). https://doi.org/10.32473/edis-ag474-2023
Sharma, L. K., Sharma, A. K., Ogram, A., & Singh, H. (2023). Improving Biological Nitrogen Fixation to Improve Soil Nutrient Status. EDIS, 2023(4). https://doi.org/10.32473/edis-ss714-2023
Singh, K., Singh, H., Johnson, L., Carter, E., Sharma, L., & Singh, R. (2023). Plant growth regulators as a management tool in cotton production: SS-AGR-475/AG471, 5/2023. EDIS, 2023(3). https://doi.org/10.32473/edis-ag471-2023
Variety Trial Fact Sheets
Cotton Variety Evaluation Report
Corn Variety Evaluation Report
Soybean Variety Evaluation Report
For additional crops and years of reporting, please visit: https://wfrec.ifas.ufl.edu/variety-testing/
STEP Cotton Annual Reports
Competition Overview and Results
For additional information, please visit: https://step.ifas.ufl.edu/mobile-menu/education-and-training/