IRRIGATION 119 



vantageously. If dairy cows can be handled so 

 as to make the alfalfa profitable a secondary 

 profit will at once appear in the pigs and calves 

 that can be grown on the skim milk. 



In the event that dairying proves to be the 

 solution of the problem the herd should be ad- 

 justed to the working force of the family so as 

 not to create an added labor charge. In con- 

 trast with this let us make an inventory of a 

 forty-acre tract located farther south and near 

 the sea level. 



The cropping system and return from a 

 forty-acre place under irrigation in a more fa- 

 vorable location : 



Value of land $200 per acre, interest 8%, charge $16.00 



Value of improvements $50 per acre, interest 8%, 



charge 4.00 



Water charge 1.50 



Taxes i.oo 



Total annual charge per acre $22.50 



Rotation : 



8 acres alfalfa (4 tons at $6), $24 $ 192.00 



' oats, 800 bu. at 3oc 240.00 



8 " potatoes, 2,400 bu. at 3oc 720.00 



8 " alfalfa 192.00 



8 beets (15 tons at $6), $90 720.00 



40) $2,064.00 



Total gross per acre 51.60 



Total fixed charge per acre 22.50 



Total margin of profit from which cost of pro- 



