24 
Colorado Experiment Station 
for the brush, however, it is worth while to take particular pains to 
save the fodder which can be dry cured or siloed as circumstances, 
permit. , . i 
SOY BEANS 
Soy Beans can be grown in the Arkansas Valley from Pueblo 
eastward. Only the very earliest types, however, are adapted. We 
have succeeded in maturing some varieties at Cheyenne Wells, but 
the development of the crop was not such as to warrant recommend¬ 
ing it for general planting even in that section. This crop may find 
a place in the extreme southeastern section, as the season is long 
enough in that region to permit maturing one or two of the earliest 
varieties. The Soy Bean is capable of withstanding considerable 
drouth, so it may find some use in that section. 
COW PEAS 
Cow Peas is a southern crop. While called Cow Peas, they are in 
reality not peas at all, but a species of beans. They are killed by the 
very lightest frosts, consequently they are not adapted to any except 
the extreme southeastern portions of the Colorado Plains, and even 
there only one or two of the very earliest varieties can be grown. They 
do not possess sufficient merit to warrant very general recommenda¬ 
tions even for this territory. Both Soy Beans and Cow Peas should 
be planted in rows and cultivated if their growth is att'^mpted. Such 
a method takes less seed which is very expensive, and under dry land 
conditions will give as good or better returns. About 20 pounds of 
seed will nrobably be sufficient per acre if planted in rows for culti¬ 
vation. The seeds are rather large and should be planted with a corn 
l^lanter or with a grain-drill, stopping part of the holes. The revolving 
cup type of feed will not break or crack many of the seeds. 
PASTURES AND NATIVE HAYS T 
Russian I'histles .—Russian Thistles are one of the worst weeds 
of the dry lands. They are much worse pests in dry than in wet 
years. While they cannot be recommended for purposeful planting, 
there are occasional seasons when they may be utilized to help a 
deficient supply of forage. The years of 1911 and 1913 had such 
seasons. 
Russian Thistles when utilized return the most feed when 
properly siloed. They may also be cut, cured, and stacked for hay. 
The thistles must be cut before the spines get developed and hard, 
otherwise there is serious danger to the stock to which the thistle 
hay is fed. 
Nahve Hays .—Many of the native grasses of the Plains make 
very nutritious hays. But, except in low places or swales, the growth 
