Why did farmers let some fields lie fallow?

someone me

Some farmers let certain fields lie fallow so that it can battle against the Soil Erosion which can happen if you plant the same plant over and over again which can deplete nutrients that helps the soil go un-eroded.

Hope this helps!

what the first or next guys says

answer: (fluidity)is the correct answer.

explanation: because of this characteristic, success on the battlefield depends in large part on the ability to adapt to proactively change events to our advantage as well as to react quickly to constantly changing conditions