Other things being equal, a soil with 30 clay of the ________ type would be expected to have the greatest potassium -fixing capacity.
A) 1:1 B) allophanic
C) 2:1 D) crystalline iron oxide
Question 2
Other things being equal, a soil with 30 clay of the ________ type would be expected to have the greatest phosphorus -fixing capacity.
A) 2:1 B) crystalline iron oxide
C) 1:1 D) allophanic
