http://eo.ucar.edu/kids/green/cycles7.htm
We used the picture of the nitrogen cycle from this website.
http://www.elmhurst.edu/~chm/onlcourse/chm110/outlines/nitrogencycle.html
http://extension.missouri.edu/publications/DisplayPub.aspx?P=WQ252
http://littlethings.rpcs.org/Reports%20Archive/2012/The%20Effect%20of%20Heat%20Sinks%20on%20Protozoa%20Population%20Density.pdf
A previous research paper written by one of our team members, Grace Laria
ESSRE PAST AND CURRENT DATA/RESEARCH:
http://essre.rpcs.org/ESSREMicroclimateSurvey.htm
Historical information on our ESSRE research sites.
http://essre.rpcs.org/2002/ESSRE%202002%20Student%20Webs/ESSRE%202002%20Mawrtians/Nitrate%20Research.pdf
Past ESSRE research on water's effect on the nitrogen cycle
http://essre.rpcs.org/2011/TA%202011/The%20Effect%20of%20Water%20on%20Bacteria%20and%20Protozoa%20Densities%20and%20the%20Nitrogen%20Cycle.pdf
Another past ESSRE research paper on the effect of rehydrating soil during a drought on bacteria and nitrogen levels
PLANTS AND THE NITROGEN CYCLE:
http://www.turf.uiuc.edu/extension/ext-fert.html
Grass nitrogen requirements
http://www.ext.colostate.edu/mg/gardennotes/231.html
Plant nutrient needs
http://www.ppws.vt.edu/scott/weed_id/ipaca.htm
Information on jewelweed
PHOTO CREDITS:
http://eo.ucar.edu/kids/green/cycles7.htm