you are conducting an
experiment with phosphorus and nitrogen being added to the soil of a
growing plant. when the amount of added nitrogen is increased, the
growth is not affected. when the amount of added phosphorus is
increased, the growth speeds up. which of these two nutrients is the
limiting nutrient in this situation?
answer
a. phosphorus
b. nitrogen
c. there is no limiting nutrient in this situation.
d. more information is needed.