58 



BULLETIN 1026, U. S. DEPARTMENT OF AGElCTJLTURE. 



In Table 16 is given a general summary of all records of farm 

 irrigation with the exception of those covering small areas of corn, 

 peas, and other crops. The average head used may be taken as the 

 head handled by one man, as only in a few cases were two men em- 

 ployed in irrigating a single field. The ratio of hours water was 



k 4 



C032 



APRIL 

 10 20 



MAY 

 10 20 



JUNE 

 10 20 



JULY 

 10 20 



AUGUST 

 10 20 



SEPTEMBER 

 10 20 



1 



1916 







IL L 1 Jl 



1. 1 li llM IjM 



• III JIJU Alll 



Iff f .X<: :: ^^r^ 





1917 



1 . 



1 I 



nl H J 



^ UZjtlLJilI 



■■■■■■■ 11" ' 1 Tin i r ■■■ 



■■■■HBH " 1 '[ IIBB 



L jj^^HH^HI 1 



■Pllff .. , , m 



Fig. 9. — Water requirements of 2,500 acres of miscellaneous crops in 1916 

 and of 2,000 acres In 1917. 



attended to hours it was run is lowered considerably by night irri- 

 gation, and with this eliminated the ratio would probabl}^ be from 

 80 to 90 for most of the crops. One of the farms for which duties 

 were determined, the Jackson-Alles farm, is located on the delta 

 between the Cache la Poudre and the South Platte, where the soil 



