What two methods did President Monroe and John Quincy Adams use to gain territory for the United States during the Era of Good Feelings?

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.

which time period is this? or is this story fictional, i'm going to need more info to answer this question

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is slave