The land is saturated, arable land is running out. New uncultivated land in large scale there would be, but is occupied by forests, which are removed.
Every year thousands of miles of rainforest are destroyed for agricultural use. Agricultural companies are clearing more rainforest than ever before, especially in the Amazon where large tracts of rainforest are being converted into soybean farms. Some experts believe that South America will someday have an area of farmland that rivals that of the American Midwest. Much of this farmland will come at the expense of the Amazon rainforest.