Photograph of Norman Fischer, one of Louis Fischer’s three sons who operate a farm with him, shows how a sub-surface tillage implement operates, cutting weed roots, loosening soil and mixing residue into the surface. This type of equipment is coming into greater use as a means of controlling wind erosion in western Oklahoma blowing areas. This tillage also helps control water erosion which Norman says sometimes does more damage more quickly than wind erosion. OK-10, 721.

Photograph of Fischer’s Wheat Bowl Farm, Hooker, Oklahoma. side view showing V-shaped shovels or blades of sub-surface tillage implement of the kind used exclusively by the Fischers (See OK-10, 721-23). II HP 2X. OK-10, 724.

Photograph showing the V-shaped shovels of blades of a subsurface tillage instrument up out of the soil (see OK-10-721 and 10-722). II HP 2-X. OK-10-723.

Photograph of Fischer’s Wheat Bowl Farm, Hooker, Oklahoma. Side view of sub-surface tillage equipment being used on this farm comprising 16 scattered quarter sections (See OK-10, 721). II HP 2X. OK-10, 722.

Photograph of Norman Fischer (left) shows Technician John Bailey the effectiveness of properly-managed residue in controlling wind erosion and conserving moisture. This wheat is in good condition though at the time the picture was taken, rain was needed for further growth. In June 1952, Fischer harvested 22 bushels of wheat per acre despite the drought. He left the stubble 8 to 12 inches tall. In the first week in July, he worked the field with a sub-surface plow with blades or shovels as set from 3.5 to 4 inches deep, leaving residue in the surface. He repeated the operation in mid-August to cut weeds and volunteer wheat. Drilled wheat in a deep furrow on September 20, 1952. OK-10, 725.

Photograph of Norman Fischer sitting on a tractor and showing how a sub-surface tillage implement operates. The original photograph sleeve proclaims, "Norman Fischer, one of Louis Fischer's three sons who operate farm with him, shows how sub-surface tillage implement operates, cutting weed roots, loosening soil and mixing residue into surface. This type of equipment is coming into greater use as a means of controlling wind erosion in west Oklahoma blow areas. This tillage also helps control water erosion, which Norman says sometimes does more damage quicker than wind erosion. II HP 2-K."