Research

Ongoing projects

1. Living mulch and grazing techniques to improve soil health and weed control for farmers transitioning to organic farming across climatic zones, funded by USDA – NIFA – ORG.

For more details…

2. Tillage and cover crop management to reduce the negative impacts of soil strength on soil carbon and corn yield, funded by Corn Growers Association of North Carolina

3. Cover Crop and Tillage Interactions for Higher Soybean Yield in North Carolina Coastal Plain, funded by North Carolina Soybean Association

4. Integrated Appropriate Cover Crop and Tillage Systems to Enhance Soil Health, funded by Corn Growers Association of North Carolina

5. Measuring the Impact of Tillage Systems on Corn Development with and without Biological Amendments, funded by Corn Growers Association of North Carolina

6. Does the Soil Calcium:Magnesium Ratio Increase Soybean Yields and Tolerance to Drought and Salinization?

7. Nitrogen, carbon and water budgets for (annual, double, and cover crop) corn rotations in the Tidewater region, funded by Corn Growers Association of North Carolina

8. Defining the yield reduction of soybean varieties in soils with increasing saltwater intrusion issues, funded by North Carolina Soybean Association

9. Biochar as a soil health and carbon sequestration strategy for NC agriculture, funded by NC Ag Foundation

 

Research Publications

Book Chapters:

• Reyes, A. R., Heitman, J., Vepraskas, M., Ozlu, E. (2024) Soil management practices to reduce hardpans and compaction in sandy soils of North Carolina, USA in Sandy Soils Book edited by Hartemink, A. E., Huang, J. Springer-Nature. ISBN: 9783031502842
• Ozlu, E., Cercioglu, M., Gozukara, G., Demirel, B.C., Acar, M., Ucar, G., Seleiman, M., Battaglia, M.L. (2024) The application of organic manure for better soil health and higher crop production. In book: Regenerative Agriculture: Translating Science to ActionChapter: 7. CRC Press, Taylor & Francis Group
• Babur, E., Dindaroglu, T., Roy, R., Seleiman, M. F., Ozlu, E., Battaglia, M. L., Uslu, O. S. (2022) Relationship between organic matter and microbial biomass in different vegetation types. In Microbial Syntrophy-Mediated Eco-enterprising (pp. 225-245). Academic Press.
• Turan, M., Ozlu, E., Yildirim, E., Kitir, N., Gunes, A., Katircioglu, H., Arginm, S., Karacan, I., Coban, C., Ucar, D., Olgunm D., Elitas, H., Haliloglu, N., Omacer, D., Shakoory, S. (2022) Plant growth-promoting rhizabacteria as an organic fertilizer source. In Introduction and Application of Organic Fertilizers as Protectors of Our Environment, 1.

 

Scientific Journals:

2024

• Mosier, S., Kelly, L., Ozlu, E., Robertson, G. P. (2024) Switchgrass (Panicum virgatum L.) cultivars have similar impacts on soil carbon and nitrogen stocks and microbial function. Global Change Biology Bioenergy.

2023

• Ozlu, E., Arriaga, F. J. (2023) Temporal variations in soil aggregate re‐formation behaviors after disturbance by tillage. Soil Science Society of America Journal
• Gozukara, G., Dengiz, O., Shahbazi, F., Senol, H., Ozlu, E., Silva, S. H. G., Babur, E. (2023) Rapid assessment of elemental concentrations using pXRF and remote sensing on a dried lakebed. Journal of Arid Environments 219, 105087
• Battaglia, M. L., Thomasson, W., Ozlu, E., Rezaei-Chiyaneh, E., Fike, J. H., Diatta, A. A., Uslu, O. S., Babur, E., Schillaci, C. (2023) Short-Term Crop Residue Management in No-Tillage Cultivation Effects on Soil Quality Indicators in Virginia. Agronomy 13: 3 838

2022

• Ozlu, E., Arriaga, F. J., Bilen, S., Gozukara, G., Babur, E. (2022) Carbon footprint management by agricultural practices. Biology – MDPI 11: 10 1453.
• Babur, E., Dindaroglu, T., Danish, S., Haggblom, M.M., Ozlu, E., Gozukara, G., Uslu, O.S. (2022) Spatial responses of soil carbon stocks, total nitrogen, and microbial indicies to post-wildfire in the Mediterranean red pine forest. Journal of Environmental Management 320, 115939.
• Ozlu, E., Gozukara, G., Acar, M., Bilen, S., Babur, E. (2022)Field-Scale Evaluation of the Soil Quality Index as Influenced by Dairy Manure and Inorganic Fertilizers. Sustainability – MDPI 14(13), 7593.
• Gozukara, G., Acar, M., Ozlu, E., Dengiz, O., Hartemink, A. E., and Zhang, Y. (2022). A soil quality index using Vis-NIR and pXRF spectra of a soil profile. Catena, 211, 105954.

2021

• Bilen, S., Ozgul, M., Ozlu, E., Bilen, M. (2021) Impacts of Gümüşhane cement dust emissions on soil elemental compositions. Turkish Journal of Agriculture and Forestry 45 (6), 766-774.
• Ozlu, E. and Arriaga, F.J. (2021) The Role of Carbon Stabilization and minerals on Soil Aggregation. Catena 202: 105303.
• Babur, E., Uslu, O.S., Battaglia, M. L., Mumtaz, M. Z., Danish, S., Fahad, S., Diatta, A. A., Datta, R., Ozlu, E. (2021) Nitrogen fertilizer effects on microbial respiration, microbial biomass, and carbon sequestration in a Mediterranean grassland ecosystem. International Journal of Environmental Research.
• Horuz, A., Gunes, A., Turan, M., Demir, T., Serdar, U., Ozlu, E., Karaman, M. R., Firildak, G. (2021) The Effects of Different Micronutrient Fertilizers on cv. Tombul Hazelnut Yield and Certain Nut Properties. Springer-Erwerbs-Obstbau 63: 107–114.

2020

• Gunes, A., Turan, M., Sahin, U., Sahin, F., Gulluce, M., Ozgul, M., Ors, S., Ozlu, E. (2020) The Yield Responses to Crop Bioremediation Practices on Haplustept and Fluvaquent Saline-Sodic Soils. Communications in Soil Science and Plant Analysis, 51(21): 2639-2657.
• Ata, S., Gunes, A., Ozgul, M., Turan, M., Yildirim, E., Mokhtari, N. A. P., Ozlu, E. (2020) Role of Freeze-Thaw Cycles in Available Fe Levels of Some Highland Soil Orders. Fresenius Environmental Bulletin 29(1): 62-69.
• Gunes, A., Ata, S., Ozgul, M., Turan, M., Ozlu, E., & Dizman, M. (2020) Available Ammonium and Nitrate Levels of highland soil, orders in Turkey at different freeze-thaw cycles. Fresenius Environmental Bulletin 29(1): 51-61.
• Alhameid, A., Singh, J., Sekaran, U., Ozlu, E., Kumar, S., & Singh, S. (2020) Crop rotational diversity impacts soil physical and hydrological properties under long-term no-and conventional-till soils. Soil Research 58(1): 84-94.

2019

• Ozlu, E., Sandhu, S.S., Kumar, S., Arriaga, F. (2019) Soil health indicators impacted by Long-term cattle manure and inorganic fertilizer of corn-soybean rotation in South Dakota. Scientific Reports 9(1).
• Ozlu, E., Kumar, S., and Arriaga, F.J. (2019) Responses of Long-term Cattle Manure on Soil Physical and Hydraulic Properties under a Corn-Soybean Rotation of Two Locations in Eastern South Dakota. Soil Science Society of America Journal 83(5): 1459-1467.
• Sandhu, S., Sekaran, U., Ozlu, E., Hoilett, N.O., & Kumar, S. (2019) Short-term impacts of biochar and manure application on soil labile carbon fractions, enzyme activity, and microbial community structure. Biochar 1(3): 271-282.
• Kitir, N., Gunes, A., Turan, M., Yildirim, E., Topcuoglu, B., Turker, M., Ozlu, E., Karaman, M.R. & Fırıldak, G. (2019) Bio-Boron Fertilizer Applications Affect Amino Acid and Organic Acid Content and Physiological Properties of Strawberry Plant. Springer-Erwerbs-Obstbau 61(2): 129-137.
• Yagmur, B., Okur, B., Ozlu, E., Okur, N. (2019) A Preliminary Study on Response of Iron Content and Yield of Corn to Different Rates of Sewage Sludge. Anadolu Journal of Aegean Agricultural Research Institute 29(1): 63-70.
• Basak, H., Çimrin, K.M., Turan, M., Güneş, A., Ozlu, E. (2019) Response of mycorrhiza-inoculated pepper and amino acids to salt treatment at different ratios. Communications in Soil Science and Plant Analysis 50(3): 350-361.
• A., Turan, M., Akinoglu, G., Ozcan, C., Gunes, A., Korkmaz, A., Kaya, Y., Kitir, N., Adiloglu, S., Tufenkci, S., Adiloglu, A., Karaman, M.R., Ozlu, E. (2019) Effects of phosphogypsum waste application on corn (zea Mays L.) yield and nutrient contents. Fresenius Environmental Bulletin 28: 8814-8822.
• Karlidag, H., Turan, M., Karaat, F. E., Ozlu, E., Arriaga, F.J., Kan, T., Atay, S. (2019) Response of Heavy Metal Contents in Apricots to Different Transformation Modes. Acta Sci. Pol. Hortorum Cultus 18(1).

2018

• Ozlu, E., and Kumar, S. (2018) Response of surface GHG fluxes to long-term manure and inorganic fertilizer application in corn and soybean rotation. Science of the Total Environment 626: 817-825.
• Ozlu, E., and Kumar, S., (2018) Response of Soil Organic Carbon, pH, Electrical Conductivity, and Water Stable Aggregates to Long-Term Annual Manure and Inorganic Fertilizer. Soil Science Society of America Journal 82(5): 1243-1251.
• Ozdemir, G., Kitir, N., Turan, M., Ozlu, E. (2018) Impacts of Organic and Organo-mineral Fertilizers on Total Phenolic, Flavonoid, Anthocyanin and Antiradical Activity of Okuzgozu (Vitis Vinifera L.) Grapes. Acta Sci. Pol. Hortorum Cultus 17(3): 91-100.
• Erdogan, U., Kitir, N., Adem, G., Tuan, M., Tasci, S., Yildirim, E., Karaman, M. R., Mokhtari, N. E. P., Ozlu, E., Firildak, G. (2018) Different Land Use Influences on Amino Acid, Organic Acid, Hormone and Mineral Nutrient Contents of Dry Beans. Fresenius Environmental Bulletin 27(12): 8147-8157.

2017

• Ozlu, E. and Alhameid, A. (2017) The Linkage between Human Health and Soil under Different Farming Practices, a Systematic Review. Soil Science 48: 573-592.
• Yagmur, B., Ozlu, E., Ates, F., Simsek, H. (2017) The response of soil health to different tillage practices in organic viticulture farming. J Soil Sci Plant Health 1:1.

 

Conference Proceedings:

• Bleam, W., Ozlu, E., Arriaga, F. J. (2019) Salinity and Alkalinity in Surface and Ground Water Resources in Turkey. 6th International Conference on Sustainable Agriculture and Environment, Konya, Turkey. ISBN: 978-605-184-194-6.

 

TV Programs and interviews:

• Coogan, K. (2023) Interviewed on No till management impact by Kenny Coogan – Columnist. Co-Host of Mother Earth News and Friends Podcast – Ogden Publications, Inc.
• Ozlu, E., Oztas, T., (2021) Soil Health. Cevre TV (YouTube).
• Penelope Hillemann interviewed on “Ozlu, Ekrem, and Sandeep Kumar. (2018) Response of Soil Organic Carbon, pH, Electrical Conductivity, and Water Stable Aggregates to Long-Term Annual Manure and Inorganic Fertilizer” on behalf of SSSA Web-News about Soil Science Society of America Journal.

 

Abstracts and Presentations at Professional Meetings:

2024

• Epting, C., Gatiboni, L., Heitman, J. L., Everman, W., Ozlu, E. (2024) Cover Crop and Tillage Interactions for Higher Soybean Yield in North Carolina – Coastal Plain. NC Commodity Conference.
• Reyes, A. R., Kumar, S. S., Heitman, J. L., Ozlu, E. (2024) Influence of Tillage on Soil Physical Properties in NC Coastal Plain. NC Commodity Conference.

2023

• Epting, C., Kumar, S. S., Ozlu, E. (2023) Long Term Tillage Impacts on Soil and Environmental Health – North Carolina Coastal Plain. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO. (Competition Winner for SSSA Soil and Environmental Quality Division)
• Kumar, S. S., Epting, C., Reyes, A. R., Heitman, J. L., Ozlu, E. (2023) Short-Term Wildfire Impacts on Soil Chemical and Physical Properties in the Pocosin Lakes National Wildlife Refuge in the North Carolina Coastal Plain Region. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO.
• Kumar, S. S., Ozlu, E., Gatiboni, L., Ricker, M. C., Manda, A., Gibbs, A. (2023) Saltwater Intrusion and Sea Level Rise Threatens North Carolina Coastal Plain. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO.
• Reyes, A. R., Kumar, S. S., Heitman, J. L., Ozlu, E. (2023) Influence of Tillage on Soil Water Characteristics in North Carolina Coastal Plain. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO.
• Dossou, A., Gatiboni, L., Austin, R., Ricker, M. C., Ozlu, E., Gibbs, A., Wood, A. (2023) Defining the Yield Reduction for Soybean in Soils with Increasing Saltwater Intrusion Issues. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO.
• Ozlu, E. (2023) Tillage and cover crop management to reduce the negative impacts of soil strength on soil carbon and corn yield. Global Conference on Sandy Soils, Madison, WI.
• Ozlu, E. (2023) Tillage and cover crop management to reduce the negative impacts of soil strength on soil carbon and corn yield. Soil Science Society of North Carolina, Raleigh, NC.
• Crozier, C. R., Ozlu, E., Carvalho, H. D. R., Heitman, Johnson, A. (2023) Productivity and optimal establishment of newly developed Miscanthus cultivars in NC. Soil Science Society of North Carolina, Raleigh, NC.
• Epting, C., Gatiboni, L., Heitman, J. L., Ozlu, E. (2023) Cover Crop and Tillage Interactions for Improved Soil and Environmental Health in North Carolina-Coastal Plain. Soil Science Society of North Carolina, Raleigh, NC.

2022

• Ozlu, E., Kalmark, K., Bohn, S., and Robertson, G. P. (2022) Can Perennial Bioenergy Cropping Systems Promote Negative N2O Fluxes? American Geophysical Union Meeting, Chicago.
• Sekaran, U., Singh, J., Ozlu, E., Arriaga, F. J., and Kumar, S. (2022) Cover Cropping Enhances Soil Health in a No-Tillage Alfalfa-Corn Silage Agroecosystem. Communication and Public Engagement for Healthy People and a Healthy Planet, ASA-CSSA-SSSA A. Meeting, Baltimore.

2021

• Ozlu, E., and Robertson, G. P. (2021) The presence of negative N2O fluxes and controlling factors under bioenergy cropping systems. A Creative Economy for Sustainable Development ASA-CSSA-SSSA Annual Meeting, Salt Lake City.
• Ozlu, E. and Robertson, G.P. (2021) Prediction of negative N2O fluxes and related soil properties. Great Lakes Bioenergy Research Center Annual Meeting.

2020

• Ozlu, E., Arriaga, F.J. (2020) Soil Aggregate Re-formation Dynamics after Disturbance by Tillage. Translating Visionary Science to Practice ASA-CSSA-SSSA Annual Meeting, Virtual.
• Sangotayo, A., Gautam, A., Ozlu, E., Thotakuri, G., Dhaliwal, K. J., Chellappa, J., Kovacs, P., Guzman, J. G., Kumar, S. (2020) Soil Bulk Density, Pore-Size Distribution, and Water Retention as Influenced by Long-Term Organic and Inorganic Fertilizer Application Under Corn-Soybean-Spring Wheat Rotation in South Dakota. Translating Visionary Science to Practice ASA-CSSA-SSSA Annual Meeting, Virtual.

2019

• Ozlu, E. and Arriaga, F. (2019) Aggregate Carbon Dynamics as Affected by Land use Using Scanning Electron Microscope Imagining and ¹³C Natural Abundance. Embracing the Digital Environment ASA-CSSA-SSSA Annual Meeting, San Antonio, TX.
• Ozlu, E., Yost, J.L., Zeba, N., Zhang, Y., Hartemink, A., F. Arriaga, Whitman, T. (2019) Soil Carbon and Microbial Communities in Sandy Soils under Different Land Use. Embracing the Digital Environment ASA-CSSA-SSSA Annual Meeting, San Antonio, TX.
• Bilen, S., Ozlu, E., Bilen, M., Barik, K., Ozgul, M. (2019) Impacts of Cement Dust Emissions on Predicting Soil CO2 Fluxes in Gumushane, Turkey. Embracing the Digital Environment ASA-CSSA-SSSA Annual Meeting, San Antonio, TX.
• Ozlu, E. and Arriaga, F.J. (2019) Interactions of Soil Aggregate Formation and Distribution of Carbon Pools in Midwest Soils, USA. 6th International Conference on Sustainable Agriculture and Environment, Konya, Turkey.
• Bleam, W. and Ozlu, E. (2019) Water Salinity and Alkalinity in Surface and Ground Water Resources in Turkey. 6th International Conference on Sustainable Agriculture and Environment, Konya, Turkey.
• Ozlu, E. and Kumar, S. (2019) Microbial Associated Soil Carbon Stability as Impacted by Different Rates of Dairy Manure and inorganic Fertilizer Applications under Soybean Production. 6th International Conference on Sustainable Agriculture and Environment, Konya, Turkey.
• Ozlu, E. and Arriaga, F. (2019) Coupled correlation in Mechanisms of Soil Aggregate Formation and Carbon Stabilization. The Soil Science Society of America International Soils Meeting at San Diego, CA.

2018

• Ozlu, E., Arriaga, F.J., Kumar, S. (2018) Intercorrelation in Mechanisms of Soil Aggregate Formation and Carbon Stabilization in Midwest Soils, USA. The 21st World Congress of Soil Science at Rio, Brazil.

2017

• Ozlu, E., Kumar, S., Arriaga, F.J., Alhameid, A.H., Hoilette, N., Sandhu, S.S. (2017) Response of Soil Carbon Fractions and Microbial Activities to Different Rates of Manure and Inorganic Fertilizer applications under Soybean Production, The ASA-CSSA-SSSA International Annual Meeting at Tampa, FL.
• Sandhu S., Kumar S., Ozlu, E., Tobin C., Alhameid, A.H. (2017) Impact of Biochar and Manure on Hydrological Properties of Eroded and Depositional Landscape Positions. The ASA-CSSA-SSSA International Annual Meeting at Tampa, FL.
• Ozlu, E., Huang, Q., Arriaga, F.J. (2017) Mwiscsoil: Modern Online Global Environmental Data Exchange and Visualization System. The ASA-CSSA-SSSA International Annual Meeting at Tampa, FL.
• Sandhu S., Kumar S., Hoilett, N., Ozlu, E., Chalise K.S. (2017) Impact of Biochar and Manure on Biological Properties of Eroded and Depositional Landscape Position. The ASA-CSSA-SSSA International Annual Meeting at Tampa, FL.
• Ozlu, E., Kumar, S., Arriaga, F.J. (2017) Effects of Long-Term Cattle Manure Application on Soil Health under a Corn-Soybean Rotation of two Locations in Eastern South Dakota. 72nd Soil and Water Conservation Society International Annual Conference, Madison, WI.
• Subedi, K., Ozlu, E., Kumar, S., and Guzman, J. (2017) Crop Residue Removal and Cover Crops Impacts on Soil Health, Water Storage and Soybean Yield. 72nd Soil and Water Conservation Society International Annual Conference, Madison, WI.
• Alhameid, A.H., Sing, J., Ozlu, E., Kumar, S. (2017) Soil Organic Carbon Changes and Other Soil Properties Impacted by Crop Rotational Diversity under No-Till Farming in Northern Great Plains, USA. 72nd Soil and Water Conservation Society International Annual Conference, Madison, WI.

2016

• Ozlu, E., Alhameid, A.H., Kumar, S., Sexton, P., Cortus, E. (2016) Impact of Manure and Mineral Fertilizer Application on Soil Quality under a Corn-Soybean Rotation in South Dakota. The ASA-CSSA-SSSA International Annual Meeting, Phoenix, AZ.
• Ozlu, E., Sandhu, S., Kumar, S., Alhameid, A.H., Tobin, C., Sexton, P. (2016) Impact of Manure Application on Greenhouse Gas Emissions and Soil Microbial Activity under a Long-term Corn-Soybean Rotation in South Dakota. The 5th EUROSOIL International Congress, Istanbul, Turkey.
• Ozlu, E., Tobin, C., Kumar, S., Sandhu, S., Sexton, P. (2016) Impacts of Grazing Cover Crops on Soil Health Parameters and Corn Yield. The 5th EUROSOIL International Congress, Istanbul, Turkey.

2015

• Chalise, K., Wegner, B., Sandhu, S., Ozlu, E., Kumar, S., Osborne, S. L. (2015) Evaluating the Impacts of Crop Residue Removal and Cover Crops on Soil Organic Carbon and Water Infiltration. The ASA-CSSA-SSSA International Annual Meeting at Minneapolis, MN.
• Ozlu, E., Kumar, S., Berg, S., Bly, A., Sexton, P., and Gelderman, R. (2015) Impact of manure application on soil health and crop yield under corn-soybean rotation in South Dakota. The ASA-CSSA-SSSA International Annual Meeting at Minneapolis, MN.
• Alhameid, A.H., Ibrahim, M.A., Sandhu, S., Ozlu, E., Kumar, S., Osborne, S.L., Sexton, P., Schumacher, T.E., Ali, S. (2015) Long-term tillage and diverse crop rotation systems impacts on organic carbon and selected soil properties. The ASA-CSSA-SSSA International Annual Meeting at Minneapolis, MN.