38 
BULLETIN" 654, U. S. DEPARTMENT OF AGRICULTURE. 
The table shows very little in favor of either system over the other. 
Considering the larger size of the farms the farm income in the 
group of farms upon which double cropping is practiced is about 
as much larger than that of the other group as could be expected 
from the influence of the factor of size alone. The labor income is 
proportionally larger, but this is due largely to the cheaper lands 
upon which double cropping was practiced. None of the farmers 
whose farms are listed in the double-cropped group treated as much 
as 100 per cent of their grain lands in this manner, and some did not 
double crop more than 20 per cent of them. For a single season the 
income from grain farming is much greater when double cropping 
is practiced than where only a single crop is grown, and there is no 
evidence that the grain sorghum interferes with the growth of the 
succeeding alfalfa crop. It appears, then, that when the object of 
grain farming is primarily for the purpose of rotating an alfalfa 
field double cropping may be profitably practiced. 
Of 627 farms studied, there were 42 upon which the greater portion 
of the receipts was obtained from grain and 22 upon which grain 
farming was combined with some other enterprise. The results 
obtained are shown in Table XVI. 
Table XVI. — Results obtained with grain farminq in the irrigated valleys of southern 
Arizona, 1913-1915. 
Type of farming and percentage of receipts 
from principal enterprises. 
Grain, 62.8 .. . 
Grain, 36.4... 
Hav,43.7.... 
Grain, 44.8... 
Poultry, 23.4. 
Number 
of farms. 
Average 
area. 
Acres. 
203 
97 
30 
Number 
failing to 
make 8 
per cent. 
Average 
receipts. 
S5, 187 
3,212 
1,170 
Average 
farm 
income. 
S2, 807 
1,803 
835 
Average 
labor 
income. 
S541 
143 
249 
COTTON FARMING. 
Cotton farming is a new enterprise in Arizona, making its first 
appearance l in Salt River Valley in 1912, when several hundred 
acres were grown. In 1913 the enterprise expanded to over 4,000 
acres, and in 1914 it had expanded to 11,501 acres in Salt River 
Valley and 2,260 acres in Yuma Valley, according to the crop report 
of the United States Reclamation Service for that year. The low 
price obtained for the crop of 1914 set the acreage in Salt River 
Valley back to less than 2,000 in 1915 and almost eliminated the 
crop from Yuma Valley. The price paid for Egyptian cotton lint 
averaged about 15 cents a pound in 1914, while in previous years 
1 About 100 acres of cotton were grown at Arlington in 1908 and a gin was built to take care of the crop, 
but the venture was not a commercial success at this time and so the real beginning of the enterprise was 
in 1912, since which date more or less cotton has been grown every season. 
