42 



BULLETIN 336, U. S. DEPARTMENT OF AGRICULTURE. 



The Winter Turf, because of its hardiness, is the most dependable 



variety for the vicinity of Washington, D. C. Its late maturity and 



its tendency to lodge, however, make it rather less desirable than the 



Culberson, Bicknell, and Red Rustproof. It matures at about the 



same time as wheat, while the other varieties may be harvested 



before the wheat crop is ripe. Where winter wheat is grown on the 



same farm, the earlier varieties are to be preferred. As they are less 



haixly, they must be sown earlier than is necessary for the Winter 



Turf. 



EXPERIMENTS WITH WINTER BARLEY. 



Varietal tests of winter barley have been conducted at College 

 Park since 1907 and at Arlington Farm since 1908. The tests at the 

 former place have included 12 varieties, of which only four have been 

 continued for the entire seven years (1908 to 1914). At Arlington 

 Farm 56 varieties and strains have been grown from one to six years, 

 most of them for short periods only. 



The dates of seeding at College Park during the past seven years 

 were as follows: October 17, 1907; October 9, 1908; September 29, 

 1909; September 21, 1910; September 20, 1911; October 1, 1912; and 

 October 4, 1913, the average date being about October 2. .The dates 

 of seeding at Arlington Farm were September 29, 1908; September 

 21, 1909; September 15, 1910; September 10, 1911; September 16, 

 1912; and October 6, 1913, the average being about September 21, or 

 1 1 days earlier than for College Park. Experience has shown that 

 the date of seeding this crop at Arlington Farm has been too early in 

 most years for the best results. On the other hand, the crop occa- 

 sionally has been sown too late at College Park. While no definite 

 rule can be formulated, it is believed that sowing between September 

 25 and October 5 will give the best results under average conditions. 



Table XII. — Annual and average yields of varieties of winter barley grown at the Mary- 

 land Agricultural Experiment Station (College Park) and at Arlington Farm, Va., 

 for the years stated. 





C.I. 



No. 



Yield per acre (bushels). 



Group and variety. 



1908 



1909 



1910 



1911 



1912 



1913 



1914 



Aver- 

 age. 



College Park (12 Varie- 

 ties). 



Six-rowed hulled: 



Maryland Winter 



Mammoth Winter 



Tennessee Winter 



518 

 410 

 257 

 328 



702 

 252 

 662 



32.85 

 23.53 

 39.79 

 24.73 



36.72 

 34.71 

 29.84 

 27.58 



24.70 

 20.10 

 20.70 

 22.80 



31.87 

 32.96 

 32.79 

 36.36 



42.03 

 47.38 

 42.58 

 33.91 



32.13 

 35.17 

 31.83 

 24.92 



16.42 



37.50 

 39.60 

 35.80 

 35.40 



17.60 



33.97 

 33.35 

 33.33 

 29.39 



Arlington (Arlington 



17.01 



Squarehead Winter 



29.72 

 24.07 



35.20 

 30.41 

 32.80 









32.46 













27.24 





22.60 











27.70 





206 

 337 

 199 

 221 



28.51 

 25.39 

 21.62 

 17.77 













































! 













1 A variety commoniy grown in Frederick County, Md. 



