Minecraft wiki entry for Farmland, associated text: Farmland is not trampled when walking onto it from a slab next to it.
Farmland does not revert to dirt if the player jumps onto it, if a block is two blocks above the farmland being jumped on.
Farmland in Bedrock Edition is a full block, therefore a hopper cannot pick up items on a farmland block from underneath it.
According to the developer, Xilefian, "there's code that makes [crops] grow faster if they're in rows with a space between them" [10]