Research Publications



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Samborski S. M., D. Gozdowski, O. S. Walsh, P. Kyveryga, and M. Stępień. 2017. Sensitivity of Sensor Based Nitrogen Rates to Selection of Within-Field Calibration Strips in Winter Wheat. Crop and Pasture Science.

Walsh O.S. and R. Christiaens. 2016. Relative Efficacy of Liquid Nitrogen Fertilizers in Dryland Spring Wheat. International Journal of Agriculture.


Walsh O.S., and K. Girma. 2016. Environmentally Smart Nitrogen Performance in Northwestern Great Plains’ Spring Wheat Production Systems. International Journal of Agriculture. 


Pishchik V.N., N.I. Vorobyov, O.S. Walsh, V.G. Surin, and Y.V. Khomyakov. 2016. Estimation of Synergistic Effect of Humic Fertilizer and Bacillus Subtilis on Lettuce Plants by Reflectance Measurements.  Journal of Plant Nutrition. 


Samborski S. M., D. Gozdowski, E.S. Dobers, M. Stępień, O.S. Walsh, and E. Leszczyńska. 2016. On-Farm Evaluation of an Active Optical Sensor Performance for Variable Nitrogen Application in Winter Wheat. European Journal of Agronomy. 


Samborski S. M., D. Gozdowski, O.S. Walsh, D.W. Lamb, M. Stępień, E.S. Gacek, and T. Drzazga. 2015. Winter Wheat Genotype Effect on Canopy Reflectance: Implications for Using NDVI for In-Season Nitrogen Topdressing Recommendations. Agronomy Journal. 


 Walsh O.S., J.B. Solie, and W.R. Raun 2013. Can Oklahoma Mesonet Cumulative Evapotranspiration Data Be Accurately Predicted Using Three Interpolation Methods? Communications in Soil Science and Plant Analysis. 


Walsh O.S., A.R. Klatt, J.B. Solie, C.B. Godsey, and W.R. Raun. 2012. Use of Soil Moisture Data for Refined Greenseeker SensorBased Nitrogen Recommendations in Winter Wheat (Triticum aestivum L.). Journal of Precision Agriculture. 


 Walsh O.S., A.R. Klatt, J.B. Solie, and W.R. Raun. 2012. Effect of Delayed N Fertilization on Corn Grain Yields. Journal of Plant Nutrition. 









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