This study hypothesized that changing densities of soil microarthropods would result in changes in nitrogen. In order to test this hypothesis, twenty 6 x 6 m plots were established with a 3 m buffer between plots. Five plots each were randomly assigned to one of four treatments: (1) chlordane amendment 100ml AI (active ingredients) per 10,000 ml) to exclude microarthropods, (2) sprinkler irrigation (6 mm per week), (3) sprinkler irrigation (6 mm/week) plus chlordate amendment (as above), (4) control (no treatment). Dry weight biomass and total nitrogen were determined for flowers, green leaves and yellow and grey leaves of fluffgrass plants collected from plots. This study is complete.