These soil K forms vary significantly in their availability to plants, with both soln K and exch.
The soils were found to separate into three separate groups, with the Griffith 1 soil having the highest values for soln K, exch.
Exploration of the relationship between the UTE and final exch.
Therefore, given the published critical levels for exch.
The plotting of nutrient efficiency indices (UPE and UTE) with final exch.
Overall, the mean proportions of total soil Co present in the different fractions decreased in the order: RES [is greater than] FeCR [approximately equals] FeAM [is greater than] ORG [is greater than] MnOX [much greater than] EXCH.
Mean proportions of Mn decreased in the order: RES [approximately equals] FeAM [is greater than] MnOX [is greater than] FeCR [is greater than] ORG [approximately equals] EXCH.