Practice exam #3 - QUESTION 6
Fragment of a discussion from Course talk:APBI200
Yiming, consider how soil properties, such as texture and structure change with depth (as well as root abundance).
With respect to P fixation, consider pH (not just Ca).
Ca, Mg, K are all essential plant nutrients. Na is only an issue if levels are high (i.e., sodic soil)
High root abundance does not suggest slow decomposition, but good plant growing conditions.
SandraBrown (talk)