Denise M. Finney, Sara E. Eckert, and Jason P. Kaye. 2015. Drivers of nitrogen dynamics in ecologically based agriculture revealed by long-term, high-frequency field measurements. Ecological Applications 25:2210–2227. http://dx.doi.org/10.1890/14-1357.1
Appendix A: Supplementary results: cash and cover crop productivity and nitrogen content in four organic feed grain and cropping systems in central Pennsylvania.
Ecological Archives A025-137-A1.
Appendix B: Supplementary results: fortnightly soil inorganic nitrogen as nitrate and ammonium concentration measured in four organic feed grain and cropping systems in central Pennsylvania.
Ecological Archives A025-137-A2.