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Definitely not.
What would you observe? You plant the wheat where you always plant it, because it is the piece of land that you cleared from trees with hard work. You notice that the plants get worse from year to year.
The first thing was that people started not to plant anything and used the field as meadow to put sheep, goats, or cows on it. Maybe just chicken, if push comes to shove. They do know that plants grow better in places where the animals fertilize the ground.
This just lead to crop alternation: one year corn, one year grass.
The relatively modern idea of rotating three different kinds of crops in a specific order came thousands(!) of years later.
You know, people that work land have cleared the plants on that place specifically, because they know their soil.
No one would waste effort testing if that’s a good patch of land.
I’m sorry, I think we come from very different places of life, we might speak the same language, but you have theoretical, untested knowledge, and I’ve been down in the dirt a few too many years.