The Jackson Farmers Blend Plant is a 3,000 ton (2,700 t) retail fertilizer blend plant near Holton, Kansas. The 100-foot (30.5 m) diameter by 35-foot (10.7 m) tall oblate ellipsoid dome is embedded into the hillside. Delivery trucks drive up the hill, around the dome, to a simple, angled conveyor which carries the delivered product to the apex of the dome. The product drops vertically onto a polar conveyor inside the dome where it is carried to one of seven large storage bins. … read more