The study examined the effects of added nitrogen in the form of ammonium sulfate on soil arthropod populations and plant growth. Samples were taken from both a treatment plot with added nitrogen and a control plot without nitrogen over the course of several months. Results showed that mite and springtail populations, soil moisture levels, plant diversity, and plant growth increased to a greater degree in the treatment plot compared to the control. However, more samples would be needed to draw definitive conclusions due to sources of error like inconsistent soil sampling methods between researchers.