SCHOLARLY PUBLICATIONS

PEER REVIEWED JOURNAL ARTICLES

UAV-Based NDVI Estimation of Sugarbeet Yield and Quality under Varied Nitrogen and Water Rates.

2023. Agrosystems, Geosciences & Environment. doi: 10.1002/agg2.20337. In Production.

Walsh OS, Nambi E, Shafian S, Jayawardena DM, Lamichhane R, Owusu Ansah E, and JR McClintick-Chess.

Wheat Yield and Protein Estimation with Handheld and Unmanned Aerial Vehicle-Mounted Sensors.

2023. Agronomy, 13, 207. https://doi.org/10.3390/agronomy13010207

Walsh OS, Marshall JM, Nambi E, Jackson CA, Ansah EO, Lamichhane R, McClintick-Chess J, and F Bautista.

Spring Wheat Yield and Quality Response to Nitrogen Rate.

2022. Agronomy Journal,114, 2562– 2572. https://doi.org/10.1002/agj2.21101.

Walsh OS, Marshall JM, Nambi E, Shafian S, Jayawardena DM, Jackson CA, Lamichhane R, Owusu Ansah E, and JR McClintick-Chess. 

Wheat Yield and Protein Estimation with Handheld- and UAV-Based Reflectance Measurements. 

2022. Agrosystems, Geosciences & Environment,  https://doi.org/10.1002/agg2.20309.

Walsh OS, Marshall JM, Nambi E, Jackson CA, Lamichhane R, Owusu Ansah E, and JR McClintick-Chess. 

Pinto Bean Response to Row-Spacing, Seeding Rate and Herbicides. 

2020. Weed Technology, 35(4), 628-631. doi:10.1017/wet.2020.137. 

LeQuia KD, Morishita DW, Walsh OS, and AT Adjesiwor.

Grain Yield, Quality, and Spectral Characteristics of Wheat Grown Under Varied Nitrogen and Irrigation. 

2020. Agrosystems, Geosciences & Environment, https://doi.org/10.1002/agg2.20104. 

 Walsh O.S.,  J. A. Torrion, X. Liang,  S. Shafian, R. Yang, K.M. Belmont, and J.R. McClintick-Chess. 

Nitrogen Fertilizer Rate and Time Effect on Dryland No‐Till Hard Red Spring Wheat Production. 

2020. Agrosystems, Geosciences & Environment, https://doi.org/10.1002/agg2.20093

Walsh O.S., and W.L. Walsh.   

Nitrogen and Potassium Fertilization on No-Till Hard Red Spring Wheat Production. 

2019. Agrosystems, Geosciences & Environment, https://doi.org/10.1002/agg2.20018. 

Walsh O.S.

Seeding Rate and Nitrogen Fertilizer Rate Effect on Wheat Grain Yield and Quality. 

2019.  Agrosystems, Geosciences & Environment. https://doi.org/10.1002/agg2.20001

Walsh O.S., and W.L. Walsh. 

Nitrogen Fertilizer and Residue Management on No-Till Hard Red Spring Wheat Production. 

2019. Agrosystems, Geosciences & Environment.  https://doi.org/10.2134/age2019.09.0077. 

Walsh O.S.  

Managing a Wheat Cultivar ‘Egan’ with Gene for High Grain Protein. 

2019. Agrosystems, Geosciences & Environment. https://doi.org/10.2134/age2019.03.0019.

Torrion, J.A., Walsh, O.S., Liang, X., Bicego, B., and A. Sapkota. 

The Influence of Water and Nitrogen Availability on the Expression of End-Use Quality Parameters of Spring Wheat. 

2018. Agronomy, 8(11), 257; https://doi.org/10.3390/agronomy8110257

Yang, R.,  X. Liang, J. A. Torrion, O.S. Walsh, K. O’Brien, and Q. Liu. 

Assessment of UAV Based Vegetation Indices for Nitrogen Concentration Estimation in Spring Wheat. 

2018. Advances in Remote Sensing, 7, 71-90; doi:10.4236/ars.2018.72006.

Walsh O.S., S. Shafian, J.M. Marshall, C. Jackson, J.R. McClintick-Chess, S.M. Blanscet, K. Swoboda, C. Thompson, K.M. Belmont, and W.L. Walsh. 

Potential of Silicon Amendment for Improved Wheat Production. 

2018. Plants, 7(2), 26; https://doi.org/10.3390/plants7020026

Walsh, O.S. S. Shafian, J.R. McClintick-Chess, K.M. Belmont, and S.M. Blanscet. 

Evaluation of Sensor-Based Nitrogen Rates and Sources in Wheat. 

2018. International Journal of Agronomy, https://doi.org/10.1155/2018/5670479 

Walsh O.S., S. Shafian, and R.J. Christiaens. 

Nitrogen Fertilizer Management in Dryland Wheat Cropping Systems. 

2017. Plants, 7(1):9. doi: 10.3390/plants7010009. 

Walsh O.S., S. Shafian, and R. J. Christiaens. 

Sensitivity of Sensor Based Nitrogen Rates to Selection of Within-Field Calibration Strips in Winter Wheat. 

2017. Crop and Pasture Science. 68(2) 101-114; https://doi.org/10.1071/CP16380

Samborski S. M., D. Gozdowski, O. S. Walsh, P. Kyveryga, and M. Stępień. 

Relative Efficacy of Liquid Nitrogen Fertilizers in Dryland Spring Wheat. 

2016. International Journal of Agriculture, https://doi.org/10.1155/2016/6850672

Walsh O.S. and R. Christiaens. 

Environmentally Smart Nitrogen Performance in Northwestern Great Plains’ Spring Wheat Production Systems. 

2016.International Journal of Agriculture, https://doi.org/10.1155/2016/8969513

Walsh O.S., and K. Girma. 

Estimation of Synergistic Effect of Humic Fertilizer and Bacillus Subtilis on Lettuce Plants by Reflectance Measurements. 

2016. Journal of Plant Nutrition, 39:8, 1074-1086, DOI: 10.1080/01904167.2015.1061551

Pishchik V.N., N.I. Vorobyov, O.S. Walsh, V.G. Surin, and Y.V. Khomyakov. 

On-Farm Evaluation of an Active Optical Sensor Performance for Variable Nitrogen Application in Winter Wheat. 

2016. European Journal of Agronomy, 74, 56-67; https://doi.org/10.1016/j.eja.2015.11.020

Samborski S. M., D. Gozdowski, E.S. Dobers, M. Stępień, O.S. Walsh, and E. Leszczyńska.   

Winter Wheat Genotype Effect on Canopy Reflectance: Implications for Using NDVI for In-Season Nitrogen Topdressing Recommendations. 

2015. Agronomy Journal, 107(6); 2097-2106;  https://acsess.onlinelibrary.wiley.com/doi/pdf/10.2134/agronj14.0323

Samborski S. M., D. Gozdowski, O.S. Walsh, D.W. Lamb, M. Stępień, E.S. Gacek, and T. Drzazga. 

Can Oklahoma Mesonet Cumulative Evapotranspiration Data Be Accurately Predicted Using Three Interpolation Methods? 

2013. Communications in Soil Science and Plant Analysis, 44:5, 892-899, DOI:10.1080/00103624.2012.747606

Walsh O.S., J.B. Solie, and W.R. Raun 

Use of Soil Moisture Data for Refined Greenseeker Sensor Based Nitrogen Recommendations in Winter Wheat(Triticum aestivum L.). 

2012. Journal of Precision Agriculture, 14 (3), 343–356; DOI:10.1007/s11119-012-9299-9

Walsh O.S., A.R. Klatt, J.B. Solie, C.B. Godsey, and W.R. Raun. 

Effect of Delayed N Fertilization on Corn Grain Yields. 

2012. Journal of Plant Nutrition, 35:4, 538-555, DOI: 10.1080/01904167.2012.644373

Walsh O.S., A.R. Klatt, J.B. Solie, and W.R. Raun.