View of approaching pulverator plow (rotary moldboard) sub base operates in 3" furrow in foreground, to depth of 4" - Total depth of tillage 7".

Left side of deep lime placement machine. Note depth scale on lift supports.

Stubble mulch - Plowed with pulverator plow (rotary moldboard) - 3" top furrow slice - 4" sub-base slice followed by spring tooth harrow two week later. Spring tooth harrow shown in photo.

General view of hopper for deep lime placement machine.

Side view of right hand pulverator bottom. Note depth of chisels below wood reference strip.

Close-up of feed hole in lime bin. Note center feeding augers and agitators. Trap half open.

Detail of drive mechanism on deep lime placement machine. Drive from sprocket on axel - clutch allows stoppage.

General view pulverator (rotary moldboard) plow. Chisel sub bases mounted. Sweep bases at left.

Stubble mulch - TNT - 3" top furrow slice - 4" sub-base slice followed by spring tooth harrow and threader (rotary hoe) pulled backwards.

General view of Plot 22 (1947). Subsurface sweeps followed one week later by discing.