And exactly what is going to get all this extra food production going? Good wishes?
If the food is going to be produced in the western economy it's going to have to be sold for enough money to cover the cost of increasingly expensive fertilizer, seed, land, labor, and fuel that mechanized agriculture uses. If it's going to be produced in the under-developed parts of the world, the productivity of the local farmers is going to have to be increased dramatically. There's no plausible mechanism for that sort of productivity increase.
If you look at the agricultural commodity markets (in particular the price spikes), a lot of the price elasticity seems to be gone, which may be a sign that the mechanized agricultural industry is at maximum capacity. We may be only a couple of crop failures away from food rationing.
Another indication may be the "Arab Spring" upheavals. A number of the press reports credited food riots with starting the unrest.