30 



BULLETIN 430, U. S. DEPARTMENT OF AGRICULTURE. 



Table XIX.^ — Annual and average yields of Kherson oats in a date-of-seeding test on the 

 Cheyenne Experiment Farm in 1913, 1914, and 1915. 





Yield per acre. 



Date of seeding. 



1913 



1914 



1915 



3-year average. 





Grain. 



Straw. 



Grain. 



Straw. 



Grain. 



Straw. 



Grain. 



Straw. 



Apr. 15... 



Bush. 

 7.5 

 8.3 

 7.0 



Lbs. 

 260 

 270 

 638 



Bush. 

 28.7 

 26.2 

 22.5 



Lbs. 

 730 

 610 

 670 



Bush. 

 a 34.0 

 6 33.4 

 C34.9 



Lbs. 

 1,120 

 1,150 

 1,660 



Bush. 

 23.4 

 22.6 

 21.4 



Lbs. 

 703 



Mayl 



677 



May 15 



989 







a Damaged about 3 per cent by liail. 

 b Damaged about 35 per cent by liail. 



c Damaged about 10 per cent by hail. 



EXPERIMENTS WITH BARLEY. 



WINTER BARLEY. 



Only one variety of winter barley has been tested at Archer, and 

 that in only one year. On September 11, 1913, a tenth-acre plat was 

 sown to White Club barley. A good stand and a fair fall growth 

 resulted. The crop was entirely killed during the ensuing winter. 



Winter barley is not nearly as hardy as winter wheat, and it is 

 hardly probable that it can be grown successfully in the Great Plains 

 area. 



SPRING BARLEY. 



Spring barley is grown quite extensively in Wyoming, both in irri- 

 gated and dry-farmed sections. 



VARIETAL EXPERIMENTS. 



At Archer 14 varieties of spring barley have been tested in the 

 three years, 1913, 1914, and 1915. The annual and average yields 

 of these varieties are shown in Table XX. In 1913 the barley 

 varieties were grown in single tenth-acre plats on fall-plowed break- 

 ing, in 1914 in single tenth-acre plats on spring-plowed fallow, and in 

 1915 in duplicate twentieth-acre plats on double-disked corn ground. 

 Good stands have resulted each year. In 1913 the summer was dry 

 and yields low. The White Smyrna (C. I. No. 658) yielded best, 10 

 bushels per acre. In 1914 the growing season was dry and the yields 

 low, although somewhat higher than in 1913. The White Smyrna 

 (C. I. No. 658) again was the highest in yield, producmg 16.3 bushels 

 per acre. In 1915 the spring and summer rainfall was high and the 

 yields good. * For the third successive year the White Smyrna pro- 

 duced the highest yield, 38.3 bushels per acre. 



