WINTER WHEAT IN THE GREAT PLAINS AREA, 13° 
uted in part to the relatively low cost of the method. The profits 
of all other methods under trial range from $5.72 on deep fall plow- 
ing of winter wheat stubble to $7.92 on listed wheat stubble. 
Taste VI.— Yields and cost of production of winter wheat by different methods at the 
Huntley Field Station, 1913 to 1916, inclusive. 
Yield bushels). 
ae ield per acre (bushels) 
Treatment and previous crop. of plats 
averaged.| 4913 1914 1915 1916 | Average. 
Deep fall plowed: Winter wheat........-- | i eee 25.7 13.3 12:7 NG? 
Shallow fall plowed: Winter wheat..--...- |. 30.8 12.3 1G 18.9 
Listed: Winter wheat..............-..-- -| |. er 26.2 13.1 16.3 18.5 
Subsoiled: Winter wheat...-..........--.- | La 27.8 13.6 15.5 19.0 
iskeds (Comme |) 6.2. aes cde ee 4 27.4 31.5 26.8 17.3 25.8 
Green manured: 
TTS TERE ee Oe ee ere 2 22.8 36.3 37.5 14.9 27.9 
\ NLD TEE Se es a 2 36.9 33.5 38.7 23.4 Sih I) 
Moraboraverage:-.-.=.-.22----.5.-5- 4 29.9 34.9 38. 2 19.2 30. 6 
SHIMIMOREENOMe eno) mee ya nce ao coos ee Sek 3 41.6 40.6 a 56.1 b 19.4 39. 4 
ISVOESCOON A LO PIAbS. «2 <%= s552cse-52- 58 (oo-- ce -=% 32.2 33. 2 ¢ 38.0 4d 18.0 30. 4 
SUMMARY OF YIELDS AND DIGEST OF COST. 
Tillage treatment. Previous crop. 
Yields, values, etc. (average Green Sum 
per acre). fall low Listed oun mae ae Winter Corn (4 
heat (4 
plowed (1 plat). nured(4 tilled (3|”. plats). 
(1 plat). ey B (1 plat). plas). plats). | plats). plats). 
wields of grain: 
ae he loushelses|e ot eee sel Sle klk el ie OR 29.9 AUG Alene ee es 27.4 
igi ase Si 5 ERE GSE Pas 30.8 26. 2 27.8 31.5 34.9 40.6 27.6} _ 31.5 
iC ae ih es do 13.3 12.3 18}, tl 13.6 26.8 38.2 | @56.1 13.1 26.8 
NOUGE AoE eS ee erase do 12.7 13.7 16.3 15.5 We3 19.2 | 619.4 14.6 17.3 
AVerage.........-.---- 17.2 18.9 18.5 19.0 25.8 30. 6 39.4 18.4 25.8 
Crop value cost, etc.: 
Wraltecteae eee. Ry | $12.04 | $13.23 | $12.95 | $13.30 | $18.06 | $21.42 | $27.58 |........|.......- 
Coster see seb EN Uy 6232 5. 65 5. 03 7.03 AnD ah alosQGre On O4:||teme ces leeee eae 
IBEOE Esso ee De 7.58 7.92 6.27 | 13.81 TAGs 16594 4) SS. oe 
a Hight platsin 1915. 6 Nine platsin 1916. ¢ Twenty platsin 1915. d@ Twenty-one plats in 1916. 
~ BELLE FOURCHE FIELD STATION. 
The field station near Newell, S. Dak., on the Belle Fourche 
Reclamation Project, is located on a heavy gumbo clay soil. The 
soul is derived from the decomposition of Pierre shale. From the 
sou at the surface there is a rapid change to broken but undecom- 
posed shale. Near the bottom of the second foot is a comparatively 
impervious layer of soil. The first foot and at least a part of the 
second foot carry a large supply of available water. It is probable 
that but little use is made of either water or soil below the first 2 feet. 
In spite of the heavy soil and the large supply of water that can be 
obtained by the plant from that portion of it near the surface, the 
