30 BULLETIN 297, U.S. DEPARTMENT OF AGRICULTURE. 
be recommended to the farmer on the dry lands in western South Da- 
kota. If oats are grown, only the very earliest varieties, such as 
Sixty-Day and Kherson, should be used. 
The experiments with oats at Newell have included varietal tests 
and a test of rate of seeding with Kherson oats. 
VARIETAL TEST OF OATS. 
The varietal experiments with oats during the six years from 1908 
to 1913 have included 16 varieties and races. Of these, eight may be 
classed as early, five as midseason, and three as late varieties. All the 
late varieties are side oats, while all the early and midseason varieties 
have open or spreading panicles. Only five of the 16 varieties have 
been grown in all of the six years. The annual and average yields 
of the 16 varieties and races are given in Table XVI. 
TABLE XVI.—Annual and average yields of 16 varieties and races of oats on the Belle 
Fourche Experiment Farm, 1908 to 1913, inclusive. 
Yield per acre (bushels). 
: | 
Group and variety. C: No: | Average. 
1908 | 1909 | 1910 | 1911 | 1912 | 1913 i 
6 years, | 4 years, 
1908-1913. |1910-1913. 
a rr ea a pede le ARG | PR Sh pus SS 
Early varieties: | 
ISIC BS She Sea RA ee eae oe eee | PBS oso an ett ee ett | Ap reed 6.105222 74a Re Se ee | eee 
IKE enSONMGe se eae ee oe 459 |a47.5 |a25.7 \a15.0 0) 6.2 | 21.9 19.3 10.8 
Seventy-Five-Day ...........- | Be SEE Aes DEA ee eeenesleoass Ts Dulles Obes ee ees | Se ees 
SimbyeD ayee see ee eee eee | 165 |246.6 | 25.0 | 15.6 0 (035 (0) | 25 C 19.4 EZ 
Sixty-Day selection.........--. (65-562) Sse Sas foe aeons 62) Gee Selb ee DE eee 
IDO Se 3 eens Sat eas eee G@L65=566) ul eset eS Sea ee eee cd MN 23830\ Sos ee. or eee eee 
UD) Ofte eee ene ce oor | 625 alba 14.4 0 Che Nil PALES (GYal eee es pres ee 11.0 
DOs Per rere nee eee O268| eee te ae 16.6 0 93922456 |e2222e eee 12.8 
Midseason varieties: 
IB LORE OUT eerie eae es r= G5 Sa Ea 32.0 3.6 Os) a4 As | 21055 sR eee 9.3 
Canada neeneae ees a eae 444 | 38.8 | 21.3 4.4 0} 10.4 | 18.5 15.6 8.3 
Danis hisses eae as eee Ma es ost (nal ea Se ecg Wn I Bel ee PEE Be eee tS Sc llbnocacoore 
Grea tal) aie sie tes Sept haere |e oe acl er anepe 2626 je aes Dae BS ee ele oy va eee 
Swedishtsclectas- ees eee 134 | 38.1 | 28.4 | 2.3 0} 9.2 |-15.2 15.5 6.7 
Late varieties: 
Winitemgussianiee sep eee 551 | 30.9 | 20.0 0 OR P22e 7a lel4e3 14.6 9.2 
Winitemiancarl ames. 300 | 30.9 | 22.8 0) QR See See. Fall see ee eee es 
mMicllow, Glant=ec "Sess ee ee 342 | 19.4117.5| 0 0. |v 2e2 so aed ates ES See ees 
a Average of two plats. 
Table XVI shows that fairly good yields of oats were obtained 
from all varieties in 1908, when the seasonal rainfall was slightly 
above normal and the distribution of the raimfall was favorable. 
The low yield in 1909 was due in large measure to poor preparation 
of the seed bed and resulting poor germination and slow growth. 
Abundant rainfall favored the larger and later varieties, such as Big 
Four and Swedish Select, which may always be expected to yield 
more than the early varieties in particularly favorable years. In 
1910 the conditions early in the season were exceptionally good, but 
the rainfall after the seed germinated was much below normal and 
consequently only the earliest varieties produced yields which were 
