Waldrip, H., Todd, R.W., Cole, N.A., Li, C., Salas, W. 2013. Estimation of ammonia emissions from beef cattle feedyards using process-based model manure-dndc. Transactions of the ASABE. 56(3):1103-1114.
Todd, R.W., Cole, N.A., Waldrip, H. 2013. Ammonia emissions and emission factors: a summary of investigations at beef cattle feedyards on the southern high plains. 2013 Livestock and Poultry Environmental Learning Center Conference Waste to Worth. 1:86.
Todd, R.W., Cole, N.A., Aiken, R.M., Waldrip, H. 2013. Arrhenius equation for modeling feedyard ammonia emissions using temperature and diet crude protein. Journal of Environmental Quality. 42(3):666-671. doi:10.2134/jeq2012.0371.
Waldrip, H., Rotz, C.A., Li, C., Todd, R.W., Salas, W.G., Cole, N.A. 2013. Estimation of ammonia emissions from two commercial beef cattle feedyards in the southern high plains with process-based modeling.2013 Livestock and Poultry Environmental Learning Center Conference, Waste to Worth. 1:91.
He, Z., Cao, X., Mao, J., Ohno, T., Waldrip, H.M. 2013. Analysis of carbon functional groups in mobile humic acid and recalcitrant calcium humate extracted from eight US soils. Pedosphere. 23(6):705-716.
Wang, Y., He, Z., Waldrip, H.M. 2012. Capillary electrophoresis application in metal speciation and complexation characterization. In: He, Z., editor. Capillary Electrophoresis: Fundamentals, Techniques and Applications. New York, NY:Nova Science. p. 117-130.
He, Z., Waldrip, H.M., Yun, W. 2012. Application of capillary electrophoresis in agricultural and soil chemistry research. In: He, Z., editor. Capillary Electrophoresis: Fundamentals, Techniques and Applications. New York, NY:Nova Science. p. 131-151.
Olk, D.C., Mosa, A.M., Waldrip, H. 2011. Impacts of humic product application on yields of potato and other field crops. American Society of Agronomy Annual Meetings [abstracts]. ASA-CSSA-SSSA Annual Meeting. Oct. 16-19, 2011, San Antonio, TX. CD-ROM.