*t 
& 
c 
84 BULLETIN 430, U. S. DEPARTMENT OF AGRICULTURE. 
acre. The Select Russian (C. I. No. 3) gave the highest yield, 7.4 
bushels. 
TaBLe XXIV.—Annual and average yields of 16 varieties and strains of flax grown on 
the Cheyenne Expervment Farm in 1913, 1914, and 1915. 
Yield per acre (bushels). 
Variety. c ae Average. 
1913 1914 1915.) =e 
1913 to | 1914 and 
1915. 1915. 
Montanai Commons sepeescee ce eceeee teense anne 6 7.0 5.6 17.6 10.1 11.6 
Select Russian (N. Dak. No. 1215)................-.- 3 7.4 5.2 17.2 9.9 1, 
Fargo Common (N. Dak. No. 1138)..............-..- 18 6.3 5.6 fo 8) 9.8 11.6 
IRS Pal (GNIS IDEM Ss INOS UIE en ee Cn ee ae 19 5.5) 4.5 18.0 9.3 ia 3 
HRMS IATaE GND alkesN (Oslo 5) pete eee ne eee 17 5.0] . 5.9 16.3 9.1 11.1 
North Dakota Resistant NO! 5255-25-52 s05 eee. eee 8 6.3 6.7 12.8 8.6 9.8 
RR Ssiamin NED ake Novel 34.) ayaa ee eres ee wae 5 7.0 4.5 14.0 8.5 9.3 
Way omine,Commonssesepereee eee eee eee eee 63 | @5.0} 04.9 115}, 83 8.4 10.1 
Select Riga (N. Dae INGO SPADA ete specs roe he est 2 6.4 5.0 1133533 8.2 9.2 
North Dakota IN OPHI22 Meee UUs ak mare awe tts ree 16 5.4 5.5 105) 8.1 9.5 
IRR SERA, NG IDEN, INO; BYE) Reb coccotssoucuseosduccs 4 6.3 Dad 12.0 8.0 8.9 
SeleCtRIUSSIAM A Mae ea SNe ered eyseyslas ee a oie a ee 1 6.3 4.9 1285 7.9 8.7 
IB TIE PE LOSS OMe eer a ee ere are Sep tse Cee 22 4.6 5.5 11.5 oP 8.5 
PriMost OvanmeeNOs25) see eee ee eee ee eee 12 4.3 5.9 10.8 7.0 8.4 
WASWOIC OMI ONE oan Ao et heated ne Lae weeeean 1 Wo Nise ioe 4.4 18.5 eens ee 11.4 
North akotakvesistant Nos liao se ee le HS iV Se ae 3.8 12: Outen 8.1 
a Average of 5 tenth-acre check plats. b Average of 7 tenth-acre check plats. 
In 1914 the flax varieties were sown in tenth-acre plats on spring- 
plowed fallow land at the rate of 15 pounds per acre. Good stands 
were obtained. The precipitation in June and July was below 
normal and was poorly distributed. However, fair yields of flax 
were obtained. The yields ranged from 3.8 to 6.7 bushels per acre. 
In 1915, 16 flax varieties were sown in duplicate twentieth-acre 
plats on double-disked corn ground at the rate of 15 pounds per acre. | 
Good stands were obtained. The spring and summer rainfall was | 
above normal. The growing season was considerably prolonged by 
the cool, wet weather. The growth was good and excellent yields 
were obtained, ranging from 10.8 to 18.5 bushels per acre. The 3-year 
average yield of 14 flax varieties ranges from 7 to 10.1 bushels per 
acre. 
The four leading varieties and their average yields are: Montana 
Common (C. I. No. 6), 10.1 bushels; Select Russian (N. Dak. No. 
1215, C. I. No. 3), 9.9 bushels; Fargo Common (N. Dak. No. 1133, 
C. I. No. 18), 9.8 bushels; and Russian (N. Dak. No. 155, C. I. No. 19), 
9.3 bushels per acre. 
Flax is a promising crop for eastern Wyoming, as shown by the 
_ results in the past three years. Flax growing need not be confined to 
newly broken land, as good results can also be obtained on old land — 
if the seed bed is well prepared and kept free from weeds. Flax 
should not be grown continuously on the same land but in rotation 
with other crops, preferably after a clean-cultivated row crop. It is 
imperative that flax be grown in rotation with other crops, in order 
that loss from flax diseases may be reduced to the minimum. 
