18 BULLETIN 1276, U. S. DEPARTMENT OF AGRICULTURE 
Seven varieties have been grown at Sheridan during the 6-year 
period from 1917 to 1922, inclusive. With the exception of Kanred 
all varieties were grown in each of the six years. The average yield 
of Kharkof is 26.7 bushels per acre, all, other varieties yielding 
significantly less. 
TABLE 7.—Yields of seven varieties and strains of winter wheat grown at the Sheri- . 
dan Field Station, Sheridan, Wyo., during the 6-year period from 1917 to 1922, 
inclusive, compared with those of Kharkof in comparable years 
[Data obtained in cooperation with the Office of Dry-Land Agriculture Investigations] 
Yield per acre (bushels) 
Per 
Average cent- 
Class and Crt) BYES TO 3 Odds age of 
variety No. Years | Dif- Khar- 
1917 | 1918 | 1919 | 1920 | 1921 | 1922 | com-| Vari- |Khar-| fer- kof 
pared| ety | kof, | ence 
named! same 
years 
Hard red winter: 
OMe Sees 1438 | 6.6 | 44.1 | 96] 33.3 | 15.3 | 30.6 692352012657 |—supm 24.621) )Sh.9 
Beloglina__-_-_- 1543 7.7 | 42.4 8.9 | 32.0 | 18.0 | 26.0 6 22.5 | 26.7 |—4.2 | 160. 3:1 84.3 
Crimean} 5.5. 559 8.0 | 44.5 | 13.9 | 36.3 | 21.9 | 27.8 6 25.4 | 26.7. |—1.3 34. 8:1 95.1 
alineGs hae se. O46" eee 43530) LION 32.0) 2250 12656 5 27.1 | 30.1 |—3.0 30. 1:1 90. 0 
Kharkof____-_- 1442 9.3 5| 44 A S72) | S854 p22 (p28. 5 6 711 eC ee ee aes pee Oe A 
Turkey__..---- 1571 | 9.3_.| 49287/211. 4 | 34.57 | 18. 2 |29: 1 6| 24.3 | 26.7 |—2.4 29. 7:1 | 91.0 
Soft red winter: 
Bufftum No.17_|'3330 | 6.0 | 42.2 | 10.3 | 30.9 | 11.9 | 14.7 6] 19.3 | 26.7 |—7.4 | DPA ea | Fy PRS 
RESULTS AT NEWELL, S. DAK. 
The Belle Fourche Experiment Farm of the Office of Western Irri- 
ation Agriculture Investigations is located at an altitude of 2,900 
Feet on the Belle Fourche Reclamation Project, near the town of 
Newell, 25 miles northeast of the Black Hills. The soil is a heavy 
clay or gumbo, classed as Pierre clay, with a shale subsoil. The 
average annual rainfall for 12 years has been 14.31 inches. Cereal 
experiments have been conducted since 1908 in cooperation with 
the Office of Western Irrigation Agriculture Investigations, and from 
1912 to 1917 also under cooperative agreement with the South Da- 
kota Agricultural Experiment Station. The experiments reported 
here were conducted wholly under dry-farming methods. The cli- 
mate is not materially influenced by the proximity of the Black 
Hills, so that drought, hot winds, and severe winter temperature are 
important factors in limiting crop production. The more important 
yields are shown in Table 8. 
~The wheat was sown on summer-fallowed land each year. Single 
plats of all varieties were grown from 1908 to 1912. In 1913 and 
1914 five plats of each variety were grown, but from 1915 to 1917, 
inclusive, only three systematically distributed plats were used. 
Yields of winter varieties were obtained at Newell, S. Dak., in 
each year from 1908 to 1917, inclusive, except in 1911 and 1912, 
when the crops were destroyed by drought. The wheat sown in the 
fall of 1917 was completely winterkilled, and no yields were obtained. 
All varieties produced Aire average yields than Kharkof except 
Theiss, which equaled the yield of Kharkof. The varieties which 
were grown for 10 years show average yields practically identical 
with Kharkof. The relatively lower yield of Turkey, C. I. No. 
3055, was due to the failure of the 1910 crop to emerge. 
