Humans used crop rotation 8,000 years ago. As far back as 6000 BC, farmers alternated planting crops each year. They did not understand the chemistry, but knew that doing so kept the soil healthy for good harvests.
fact
Humans used crop rotation 8,000 years ago. As far back as 6000 BC, farmers alternated planting crops each year. They did not understand the chemistry, but knew that doing so kept the soil healthy for good harvests.