An apparatus (100, 200, 300, 400, 500) for effecting flow conveyance of particulate material from a hopper (110, 210, 310, 410, 510), said apparatus comprising: a hopper that facilitates receipt and storage of said particulate material, said hopper having a longitudinal axis defined along a wall (112, 212, 312, 412, 512) having a height, said wall having an external surface (112a, 212a, 312a, 412a) and an internal surface (112b, 212b, 312b, 412b)defining a thickness therebetween, said wall being coexistent with an infeed end (114, 214, 314, 414, 514) for receipt of said particulate material in said hopper and an outfeed end (116, 216, 316, 416, 516) for conveyance of said particulate material from said hopper, said outfeed end having an outfeed aperture (118, 218, 318, 418, 518) defined there at; and a base (120, 220, 320, 420, 520) disposed proximate said outfeed end so as to have at least a portion thereof that is coextensive with said outfeed aperture, said base having an upper surface (120a, 220a, 320a), a lower surface (120b, 220b, 320b) and an edge (120c, 220c, 320c) defining a thickness, said base having at least one base aperture (122, 222, 322, 422, 522) defined therethrough to facilitate said conveyance of said particulate material from said hopper; at least one of said base and said hopper is capable of rotation relative to another of said base and said hopper, wherein said rotation is effected relative to an axis of rotation that is parallel to said longitudinal axis of said hopper, such that said base aperture is at least in intermittent particulate flow communication with said outfeed aperture, said apparatus characterized in that the movement of particulate material is unobstructed in said hopper; and the apparatus is configured so that the rotational movement imparts sufficient agitation to particulate materials to effect flow that is faster than that effected by gravity alone. a hopper that facilitates receipt and storage of said particulate material, said hopper having a longitudinal axis defined along a wall (112, 212, 312, 412, 512) having a height, said wall having an external surface (112a, 212a, 312a, 412a) and an internal surface (112b, 212b, 312b, 412b)defining a thickness therebetween, said wall being coexistent with an infeed end (114, 214, 314, 414, 514) for receipt of said particulate material in said hopper and an outfeed end (116, 216, 316, 416, 516) for conveyance of said particulate material from said hopper, said outfeed end having an outfeed aperture (118, 218, 318, 418, 518) defined there at; and a base (120, 220, 320, 420, 520) disposed proximate said outfeed end so as to have at least a portion thereof that is coextensive with said outfeed aperture, said base having an upper surface (120a, 220a, 320a), a lower surface (120b, 220b, 320b) and an edge (120c, 220c, 320c) defining a thickness, said base having at least one base aperture (122, 222, 322, 422, 522) defined therethrough to facilitate said conveyance of said particulate material from said hopper; at least one of said base and said hopper is capable of rotation relative to another of said base and said hopper, wherein said rotation is effected relative to an axis of rotation that is parallel to said longitudinal axis of said hopper, such that said base aperture is at least in intermittent particulate flow communication with said outfeed aperture, said apparatus characterized in that the movement of particulate material is unobstructed in said hopper; and the apparatus is configured so that the rotational movement imparts sufficient agitation to particulate materials to effect flow that is faster than that effected by gravity alone.