The soil results show definite evidence that set-aside has resulted in a change in the nutrient status of the soil. pH is generally slightly lower, and organic matter is higher.
Levels of Cl, PO4, NH4, Si and K have all increased on set-aside. Ca and Mg have both decreased as has levels of NO3. Most of the nutrients have undergone significant changes under set-aside (See Boxplots, Appendix).