Provide your best answer for the following question. Give ONLY the answer, no other words or explanation.
For example:

Answer: <most likely answer, as short as possible; not a complete sentence, just the answer!>.

The question is: What is an example of the fact that crop rotation renews the soil?
planting peas one season then carrots the next
A farmer grows wheat one year, then corn the next, and beans the following year. Wheat depletes nitrogen, corn requires nitrogen