The early science was concerned with the most limiting element to plant growth. Insufficient N and your plant wont’t reach its full potential
that which would hinder all; there is at least a resource whose substitution elasticity for others is less than 1.
i am just going to repost – thought:
“Only when the last tree has been cut down, the last fish been caught, and the last stream poisoned, will we realize we cannot eat money.”
― Cree Indian Prophecy
Ceteris Paribus 