How did planters regain control of the land and labor in the South? After the Civil War.

They did sharecropping

Explanation:

Because they could no longer have slaves but they still had farms that needed to be worked, newly freed African-Americans stayed on the farms as Sharecroppers. Sharecropping is when someone works on the farm amd gets housing and food and the tools to farm and some of the produce they harvest. They usually do not get enough produce to pay back there debt to the land owner so they cannot leave the farm. The sharecropper get stuck in an endless circle of debt because they can never pay their debt back because they do not get enough procude to sell so it is similar to slavery becayse they are still trapped at the farm.