1. Benoit M, Garnier J et al (2014) Nitrate leaching from organic and conventional arable crop farms in the Seine Basin (France). Nutr Cycl Agroecosyst 100(3):285–299
2. Crowell M (2012) An ecosystem service approach to inform reactive nitrogen management in the lower Yakima River Basin, Washington. Masters Thesis, Oregon State University
3. Dimitri C, Oberholtzer L (2009) Marketing US organic foods: recent trends from farms to consumers. USDA Economic Bulletin no 58
4. Feaga J, Selker JS (2004) Field measurements of nitrate leaching below Willamette Valley row and mint crops. Oregon State University Extension Publication EM 8851
5. Gollehon NR, Caswell M et al (2001) Confined animal production and manure nutrients. https://doi.org/10.22004/ag.econ.33763