Subsidizing the large corporate farms while slaughtering small family farms is a republican tradition. They have found if you do it often enough, there are fewer small farms to deal with. And generally, republican farmers still vote republican no matter how bad they get abused. Bigger corporate farms means larger corporate donations.
The thing is, monsanto will be whining soon that they need help due to land being left fallow and not planted with their GMO seeds and treated with roundup.