Seeing as a little Chinese cash will sway 98% of state and federal authorities, I see nothing here but more opportunity for politicians to enrich themselves.
Sometimes a government who cares first for its own people, has to have laws to protect them. I would pass a law that says no foreign interests may purchase American farm lands. It would be in the interest of the country to encourage a return to small farms, family owned businesses, the way they used to be before the corporations took over.
I would add to this law that anyone purchasing a farm must use it for production for the benefit of the American people. Farmland that is to be converted to suburbs must have the approval of both local politicians and a citizen board.