6 BULLETIN 1173, U. S. DEPARTMENT OF AGRICULTURE. - 
Figure 4 shows the buildings and the general topography of the 
surrounding country at the Sherman County Branch Station at 
Mong, Oreg., while Figure 5 shows the plats in the tillage and rotation 
series. Figure 6 presents a general view of the Adams Branch 9 
Station at Lind, Wash., with the station buildings in the background. | 
The rolling topography of this section is well shown in this illustration. 
Some of the winter-wheat plats at the station are shown in Figure 7, ¥ 
which also illustrates the plan of seeding roadways to prevent soil § 
blowing. Figure 8 shows winter wheat at the Nephi Substation, 
Nephi, Utah, while Figure 9 shows the condition in which fall-plowed 
land is left over winter on this station farm. ; 
Fia. 4.—Buildings at the Sherman County Branch Station at Moro, Oreg., as they appeared in July, 
1922. At left center, barn for stock and hay; at center, office and laboratory; at right center, superin- 
tendent’s house. The buildings at the extreme right arein thetown of Moro. The rolling topography ~ 
of the surrounding country is shown. Fs 
SOILS. 
The altitude of the station at Moro, Oreg., is approximately 1,800 
feet. The soil is a silt loam, classified by the United States Bureau of © 
Soils as Yakima silt loam. It is rather light in texture, but the per- 
centage of sand is not so high that there is any trouble from the 
soil drifting with the wind, as do some other soils in this section. 
It is representative of large areas in the Columbia Basin of Oregon. § 
The average moisture content of the soil to a depth of 6 feet at the § 
‘ Moro Station after a season of fallow rarely exceeds 14 per cent. 
A winter-wheat crop usually reduces this moisture content to about 
5 per cent in the upper 6 feet. The soil is underlain with basalt, the 
depth from the surface to this basalt varying from 2 to 7 feet. The 
productivity of the soil is considerably influenced by its depth, the — 
shallow soils being less productive than the deep soils, because of their | 
inability to store sufficient moisture. 
The soils at the Lind Station are basaltic in origin and have been 
more or less modified by wind. The soil, a very fine sandy loam of — 
the Ritzville series, is considerably lighter than that.at Moro and is 
