1. NH4+ toxicity in higher plants: a critical review;Britto;J. Plant Physiol,2002
2. Frontiers in ecosystem ecology from a community perspective: the future is boundless and bright;Weathers;Ecosystems,2016
3. “Nutrient cycles and soil fertility,”;Brady,2010
4. Chapter 12: “Plant-Soil Macronutrient Relations,”;Foth,1990
5. Eutrophication: causes, consequences, and controls in aquatic ecosystems;Chislock;Nat. Educ. Knowl,2013