Professional Biography

John McMaine is an Extension Associate Professor in the Department of Biosystems and Agricultural Engineering at University of Kentucky. His Extension and research activity centers on developing and implementing solutions to address challenges related to climate resilience, stormwater, flooding during extreme events, low impact development, green infrastructure, and urban pollutant fate and transport. Dr. McMaine is focused on developing and implementing solutions in conjunction with local communities and stakeholder groups that solve real world problems.  

A Wildcat alum, John received B.S. and M.S. degrees in Biosystems and Agricultural Engineering from UK before completing a Ph.D. in Biosystems and Agricultural Engineering at Oklahoma State University. Before joining UK as faculty, he spent seven years as an Extension and Research faculty member at South Dakota State University. He worked primarily with agricultural water management and the intersection of soil health and water management. Past projects involved working with agricultural producers to investigate the potential for in-field practices, such as extended rotations, no-till and cover crops, to improve resilience to climate extremes (too much water or not enough). In addition, he worked with producers to better understand what role subsurface (tile) drainage plays in downstream nutrient loading under the South Dakota landscape and climate. His Extension programming and products have directly reached thousands of stakeholders through podcasting, videos, workshops, trainings, K-12 activities and Extension articles and fact sheets.  

Outside of work, he enjoys time with family, being active whether hiking or playing pickup basketball, traveling and experiencing new adventures. 

Scholars@UK

Removal of Nitrate and Phosphorus in Aqueous Solutions by MgO-Modified Biochars: Adsorption Isotherms

Sahraei, M., Askarzadeh, Y., Ebrahimzadeh, S., Gorginpaveh, F., McMaine, J. & Liaghat, A., Sep 1 2025, In: Remediation. 36, 1, e70045.

Research output: Contribution to journalArticlepeer-review

VALIDATION AND DEVELOPMENT OF DISCHARGE EQUATIONS FOR 3D PRINTED FLUMES FOR FLOW MONITORING

Akhter, F., McMaine, J. T., McLemore, A. J. & Hurst, M. J., 2021, In: Transactions of the ASABE. 64, 6, p. 1921-1928 8 p.

Research output: Contribution to journalArticlepeer-review

Effectiveness of denitrifying bioreactors on water pollutant reduction from agricultural areas

Christianson, L. E., Cooke, R. A., Hay, C. H., Helmers, M. J., Feyereisen, G. W., Ranaivoson, A. Z., McMaine, J. T., McDaniel, R., Rosen, T. R., Pluer, W. T., Schipper, L. A., Dougherty, H., Robinson, R. J., Layden, I. A., Irvine-Brown, S. M., Manca, F., Dhaese, K., Nelissen, V. & von Ahnen, M., 2021, In: Transactions of the ASABE. 64, 2, p. 641-658 18 p.

Research output: Contribution to journalReview articlepeer-review

The role of living labs in cultivating inclusive and responsible innovation in precision agriculture

Gardezi, M., Abuayyash, H., Adler, P. R., Alvez, J. P., Anjum, R., Badireddy, A. R., Brugler, S., Carcamo, P., Clay, D., Dadkhah, A., Emery, M., Faulkner, J. W., Joshi, B., Joshi, D. R., Khan, A. H., Koliba, C., Kumari, S., McMaine, J., Merrill, S. & Mitra, S. & 12 others, Musayev, S., Oikonomou, P. D., Pinder, G., Prutzer, E., Rathore, J., Ricketts, T., Rizzo, D. M., Ryan, B. E. K., Sahraei, M., Schroth, A. W., Turnbull, S. & Zia, A., Apr 2024, In: Agricultural Systems. 216, 103908.

Research output: Contribution to journalArticlepeer-review

APPLICABILITY AND SENSITIVITY OF FIELD HYDROLOGY MODELING BY THE SOIL PLANT AIR WATER (SPAW) MODEL UNDER CHANGES IN SOIL PROPERTIES

Saha, A. K. & McMaine, J., 2023, In: Journal of the ASABE. 66, 4, p. 809-823 15 p.

Research output: Contribution to journalArticlepeer-review

Understanding farmers’ engagement and barriers to machine learning-based intelligent agricultural decision support systems

Adereti, D. T., Gardezi, M., Wang, T. & McMaine, J., May 1 2024, In: Agronomy Journal. 116, 3, p. 1237-1249 13 p.

Research output: Contribution to journalArticlepeer-review

10 m crop type mapping using Sentinel-2 reflectance and 30 m cropland data layer product

Tran, K. H., Zhang, H. K., McMaine, J. T., Zhang, X. & Luo, D., Mar 2022, In: International Journal of Applied Earth Observation and Geoinformation. 107, 102692.

Research output: Contribution to journalArticlepeer-review

Impact of no-till, crop rotation, cover crop, and drainage on soil physical and hydraulic properties

Saha, A. K., McMaine, J. T., Trooien, T., Sexton, P. & Graham, C., Mar 1 2024, In: Soil Science Society of America Journal. 88, 2, p. 239-257 19 p.

Research output: Contribution to journalArticlepeer-review

Looking beyond MS4 communities: Assessing impervious cover and population dynamics in small towns

Sahraei, M., McMaine, J., May, C. & Bergstrom, J., Apr 2025, In: Journal of Environmental Management. 380, 124996.

Research output: Contribution to journalArticlepeer-review

Integrated geophysical investigations of groundwater for sustainable management in Faisalabad region of Pakistan

Javed, U., McMaine, J., Arshad, A., Hussain, S., Muhammad, S., Akbar, M. U., Awais, M. & Noor, R., Dec 2024, In: Environmental Earth Sciences. 83, 24, 673.

Research output: Contribution to journalArticlepeer-review

Responses of leached nitrogen concentrations and soil health to winter rye cover crop under no-till corn–soybean rotation in the northern Great Plains

Bawa, A., MacDowell, R., Bansal, S., McMaine, J., Sexton, P. & Kumar, S., May 1 2023, In: Journal of Environmental Quality. 52, 3, p. 422-433 12 p.

Research output: Contribution to journalArticlepeer-review

Viability of Artificial Rain for Air Pollution Control: Insights from Natural Rains and Roadside Sprinkling

Haleem, N., Kumar, P., Uguz, S., Jamal, Y., McMaine, J. & Yang, X., Dec 2023, In: Atmosphere. 14, 12, 1714.

Research output: Contribution to journalReview articlepeer-review

Rethinking ‘responsibility’ in precision agriculture innovation: lessons from an interdisciplinary research team

Prutzer, E., Gardezi, M., Rizzo, D. M., Emery, M., Merrill, S., Ryan, B. E. K., Oikonomou, P. D., Alvez, J. P., Adereti, D. T., Anjum, R., Badireddy, A. R., Bhattarai, D., Brugler, S., Cheney, N., Clay, D., Clay, S., Dadkhah, A., Faulkner, J. W., Joshi, D. R. & Koliba, C. & 9 others, McMaine, J., Michael, S., Musayev, S., O’Neil-Dunne, J., Pinder, G., Ricketts, T., Schroth, A. W., Turnbull, S. & Zia, A., 2023, In: Journal of Responsible Innovation. 10, 1, 2202093.

Research output: Contribution to journalArticlepeer-review

SHALLOW BURIAL WITH CARBON FOR SWINE MORTALITY CARCASS DISPOSAL

McMaine, J., Thaler, R. C., Flory, G., Schmidt, A. M. & Hurst, M., 2025, In: Journal of the ASABE. 68, 3, p. 447-487 41 p.

Research output: Contribution to journalArticlepeer-review

Utility of daily 3 m Planet Fusion Surface Reflectance data for tillage practice mapping with deep learning

Luo, D., Zhang, H. K., Houborg, R., Ndekelu, L. M. N., Maimaitijiang, M., Tran, K. H. & McMaine, J., Jun 2023, In: Science of Remote Sensing. 7, 100085.

Research output: Contribution to journalArticlepeer-review

Field studies of pollutant removal from nursery and greenhouse runoff by constructed wetlands

McMaine, J. T., Vogel, J. R., Belden, J. B., Schnelle, M. A., Morrison, S. A. & Brown, G. O., Jan 1 2020, In: Journal of Environmental Quality. 49, 1, p. 106-118 13 p.

Research output: Contribution to journalArticlepeer-review

Critical review of technical questions facing low impact development and green infrastructure: A perspective from the Great Plains

Vogel, J. R., Moore, T. L., Coffman, R. R., Rodie, S. N., Hutchinson, S. L., McDonough, K. R., McLemore, A. J. & McMaine, J. T., Sep 1 2015, In: Water Environment Research. 87, 9, p. 849-862 14 p.

Research output: Contribution to journalReview articlepeer-review

Constructed wetlands for water quality improvement: A synthesis on nutrient reduction from agricultural effluents

Messer, T. L., Moore, T. L., Nelson, N., Ahiablame, L., Bean, E. Z., Boles, C., Cook, S. L., Hall, S. G., McMaine, J. & Schlea, D., 2021, In: Transactions of the ASABE. 64, 2, p. 625-639 15 p.

Research output: Contribution to journalReview articlepeer-review

Education

Ph.D., Biosystems and Agricultural Engineering, Oklahoma State University

M.S., Biosystems and Agricultural Engineering, University of Kentucky

B.S., Biosystems and Agricultural Engineering, University of Kentucky

Profile Resources

Soil and Water Extension Extension Publications

Associated Departments

Biosystems & Agr Engineering