individual publications academic article Soil and tissue testing for sulfur management of alfalfa in New York State. Soil Science Society of America Journal. 76:298-306. 2012 Influence of soil texture and cultivation on carbon and nitrogen levels in soils of the eastern Indo-Gangetic Plains. Geoderma. 153:304-311. 2009 Soil organic carbon and nitrogen stocks in Nepal long-term soil fertility experiments. Soil and Tillage Research. 106:95-103. 2009 How extensive are yield declines in long-term rice-wheat experiments in Asia?. Field Crops Research. 4149:1-22. 2002 Long-term changes in yield and soil fertility in a twenty-year rice-wheat experiment in Nepal. Biol.Fertil.Soils. 34:73-78. 2001 article Cover crop carbon and nitrogen content: Fall of 2010 sampling. 2011 Effect of sampling height and length on corn stalk nitrate test results 2010 document part Effect of sampling protocol on corn stalk nitrate test results 2010 Evaluation of nitrogen management of corn using the Illinois Soil Nitrogen Test and Corn Stalk Nitrate Test 2010 Nitrogen dynamics after cover crop incorporation 2010 Nitrogen dynamics following surface-application of enhanced efficiency fertilizers 2010 Sulfur needs of alfalfa: Tools for sulfur management 2010