Baritone Farming

What do you need help with?

Sorry if this is badly formatted, this is my first time :p I need to farm, but replant crops only the type that was there before. Is there any way to do this? this was a lil unclear, lets say 5 5 5 had a carrot, and 6 5 5 had a potato, when replanting, 5 5 5 should become a carrot again, and 6 5 5 should become a potato again