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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

2025 Report

2024 Report

2023 Report

Corn Variety Evaluation Report

2025 Report

2024 Report

2023 Report

Soybean Variety Evaluation Report

2024 Report

2023 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

2024 Report

For additional information, please visit: https://step.ifas.ufl.edu/mobile-menu/education-and-training/

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