40 BULLETIN 3v»S. U. 5. DEPAET3IIXT OF AGBICTTLTTTEE. 
SUMMARY. 
Cooperative experiments with cereals at the Judith Basin sub- 
station. Moccasin. Mont., have been conducted during eight years. 
190$ to 1915. inclusive. 
The Judith Basin substation is located in the west-central part 
of Fergus County, in central Montana. The altitude is 4.300 feet. 
The yields obtained at Moccasin are not representative of all 
the dry-land area, but the comparative results obtained are believed 
to be applicable in general to all the dry-f arming area of Montana. 
The annual average precipitation at Moccasin for IS years, 1S9S to 
1915. inclusive, is 16.66 inches. The average seasonal rainfall 
April to July, inclusive for the same years is 9.41 inches. 
The soil at Moccasin on which the cereal varieties have been 
tested is a dark clay loam of limestone origin. 
On the average, satisfactory yields are obtained from winter and 
spring wheat, spring oats, barley, and flax. 
The best winter wheats are the Kharkof and Turkey. These be- 
long to the Crimean group of hard winter wheats. 
The best rate to sow winter wheat is 3 pecks per acre. The best 
date to sow is from August 10 to September 10. 
The highest yields of spring wheats have been obtained from varie- 
ties of durum wheat. Of these, the Pelissier has been the best. Of 
the common spring wheats the best variety to grow appears to be the 
Marquis. 
Spring wheats are seeded at the rate of 4 pecks per acre. 
The best results are obtained from sowing all spring wheat, oats, 
and barley as early in the spring as soil and climatic conditions will 
permit. 
The highest average yield of oats was obtained from the Sixty-Day 
variety. This variety averaged about 16 bushels per acre more than 
later maturing varieties. 
The best rate of seeding for the small-kerneled early varieties of 
oats, such as the Sixty-Day. is about 4 pecks per acre. 
The White Smyrna barley, a 2 -rowed bearded hulled variety, 
has given the highest average yield. 
The hulled varieties of barley are seeded at the rate of 5 pecks and 
the naked varieties at the rate of 4 pecks per acre. 
The highest yield of flax in a 5-year test was obtained from the 
Russian variety. 
It is probable that the best results will be obtained if flax is sown 
early, between April 15 and May 1. The best rate seems to be from 
20 to 25 pounds per acre. 
In pounds per acre, the average yield of the White Smyrna barley 
is greater than that of the best variety of any of the other cereal 
