24 BULLETIN 402, U. S. DEPARTMENT OF AGRICULTURE. 
The yields of two varieties of durum wheat have averaged slightly 
higher than those of the best winter variety. However, in the case of 
the winter variety there was one year of failure, which may not occur 
again in a long series of years. If this is true, the winter wheat will 
probably take first rank. It should also be noted that when winter 
wheat winterkills, the land can be resown to spring wheat. The 
winter wheat should then be credited with the returns from the 
spring wheat grown on the land that year, less the cost of seed and 
sowing. If this were done for the year of failure in Table XVI it 
would place winter-wheat yields above those of spring wheat. At 
present there is probably greater value represented in the slightly 
lower yield of winter wheat on account of the higher market price. 
In case the grain is ground and used for feed the market price would 
not be a factor. | 
In 1908 the durum wheats produced about 25 per cent more grain 
than the winter wheats, while the common spring wheats gave yields 
about equal to the winter varieties. In 1909 the spring wheats 
yielded well and winter wheats failed. In 1910 winter wheats pro- 
duced nearly double the yields of spring wheat. In 1911 the 
winter-wheat yields were about 50 per cent higher than those of any 
of the spring varieties except Galgalos, which yielded 1.7 bushels per 
acre more than the best winter variety. In 1912 the wmter-wheat 
yields averaged about 40 per cent more than the spring-wheat yields. 
In 1913, 1914, and 1915 the differences were not great. 
-Tosummarize: In 1909 spring wheat gave good yields, while winter 
wheat was a failure; in 1910, 1911, and 1912 the winter-wheat yields 
were distinctly larger than those of spring wheat; while in 1908, 
1913, 1914, and-1915 the differences were not great. For the eight 
years, the average yields of the winter varieties and durum spring 
varieties are about equal, while the spring commons are 2 to 3 bushels 
lower. When all the facts are considered, it appears that winter - 
wheat will return more value per acre than spring wheat. 
EXPERIMENTS WITH OATS. 
The better varieties of oats have made fair yields at the Akron 
Field Station in all except one of the eight years during which they 
have been tested. In 1911 the yields were low except that of Colo- 
rado No. 37 (C. I. No. 619), which was located on a plat that received 
some extra water from run-off. Four varieties have been grown dur- 
ing the entire eight years. The average yield of these four varieties 
was 42.5 bushels per acre. They include two early and two mid- 
season varieties. The average yield of the midseason group is slightly 
larger than that of the early group. 
