Trial 2 (T2) was started on Sunday, February 2^nd, 2003, it also had four groups.

    For this trial, I determined the amount of tailings used by looking at my results from trial 1. The plants in groups 2 and 3 of trial one had not grown, so I decided to use very small amounts of tailings to see how much was needed to have an effect on plants. I decided to perform a trial with salt instead of potash tailings because I know that salt hurts plants, but I wondered if it was only the salt in the potash tailings that was killing the plants, or if it was the salt in conjunction with the other chemicals in the tailings.