And where did the Dinos get the poo from? From eating plants. Plants that either used bioavailable nitrogen or captured nitrogen from the air.
The nitrogen cycle has been interconnected between soil, air and biomass nitrogen since forever. There simply is no fundamental need to use mineral fertilizers, as was claimed in a comment earlier.
Cow poop
And what about the ~700 million years before cows existed?
They did exist (or some form of it), just not in quantities that could feed billions of people.
Most of the plants we eat today are products of selective breeding to make them more palatable and easier to mass produce.
Dino poo
And where did the Dinos get the poo from? From eating plants. Plants that either used bioavailable nitrogen or captured nitrogen from the air.
The nitrogen cycle has been interconnected between soil, air and biomass nitrogen since forever. There simply is no fundamental need to use mineral fertilizers, as was claimed in a comment earlier.
Yep exactly.