184 APPENDIX 



is reached. I follow with the subsurface packer 

 every half day. This I consider important as 

 the soil is then in splendid shape to be packed, 

 it is soft and pliable, air spaces are crowded out, 

 capillarity is re-established and plant food is 

 being manufactured. I harrow each day's plow- 

 ing before night to conserve what moisture I have. 

 After each rain that settles the mulch sufficiently 

 to permit the capillary movement of the water 

 to the surface, I go over the field with the acme 

 harrow, this kills weeds and produces a perfect 

 mulch. I desire to keep the soil as black as pos- 

 sible during the season, if weeds are allowed to 

 grow they take away the moisture intended for 

 the wheat. 



LIGHT SEEDING AND HARROWING 



"On the field that produced the wheat shown 

 at Tulsa, I sowed one bushel per acre, to a depth 

 of three inches, well into the moist soil and just 

 below the mulch. I do not recommend that 

 amount on all soils or under all conditions. The 

 seed was treated with formalin by means of an 

 immersion bath. After drilling, the ground was 

 packed with a corrugated packer, this pressed 

 the soil particles close to the grain, bringing mois- 

 ture to them, resulting in an even germination. 

 By firming the surface, the moisture was brought 

 from the lower, into the upper soil, causing any 

 weed seeds that were near the surface to grow 

 and these were harrowed out just as the wheat 

 emerged above the ground. I use a lever harrow 

 with the teeth set at an angle of about forty-five 



