In order for nitrate to form from soil organic matter, ________ must be present in the soil.
A) Nitrosomonas
B) Nitrobacter
C) either A or B
D) both A and B
E) none of the above
Question 2
Ammonia losses are likely to be greatest if a nitrogen source is placed about 10 cm deep in:
A) a calcareous sandy loam soil. B) a calcareous clay loam soil.
C) an acid, sandy loam soil. D) an acid, clay loam soil.