"Critics of large-scale, capital-intensive farming say that absentee ownership, even in its current form, has been destructive. They say that rented farmland often gets abused; that tenant farmers won't spend money protecting soil and water because they can't be sure that they'll be around to see the benefits of that long-term investment. Many non-farming landowners won't pay, either, simply because it cuts into their short-term rental income."
I think the big problem is monoculture -- beef, potato, and corn
it's been awhile but I saw a documentary about food in this nation. it said something like 95% of our food comes from four companies if I remember right ConAgra, Archer Daniels Midland, Monsanto and McDonald's. . . I don't know how current that information is but it was pretty scary.