GRAIN SORGHUMS IN THE TEXAS PANHANDLE. 
3 
ence crop growth. These factors are described in detail, in order 
that such comparisons may be made. 
The Amarillo Cereal Field Station (fig. 2) is located about 2^ miles 
northeast of the city of Amarillo, the county seat of Potter County, 
Fig. 2.— Amarillo Cereal Field Station, rear view, showing weather instruments, farm buildings, 
and screened inclosure for cooperative transpiration studies, 1913. 
Tex. It contains 120 acres of level prairie land at an altitude of 
approximately 3,600 feet above sea level. This portion of the State 
was used almost entirely for grazing cattle until recently. During 
30, r ] \ \ 1 \ 1 
i5 
A9/i3 /9/S /a/ 6 /9/7 /S/S 
Fig, 3.— Annual and seasonal (April to September) precipitation, in 
inches, at the Amarillo Cereal Field Station during the 7-year 
period from 1913 to 1919, inclusive. 
the past 20 years most pf the large ranches have been divided and 
fenced into smaller farms. Large fields of grain sorghums, wheat, 
and oats may now be seen, breaking the monotony of the great 
expanse of level prairie. 
