IRRIGATION AND DRY-FARMING 70S 



ROAD 



CONTOUR CHECK METHOD ^od.ng) 



ROAD 



RECTANGULAR CHECK METHOD 



1 



ROAD 



90JS > O 



3n> <i > o o o 

 3 a a » J » «>} 



HAY 



ROAD 

 \ BOEDER f^THOO ^looding^" 



\ \ \ \ 



\ 6RAIN \ \ 



\ T A 



FURROW 

 CORN 



! METHOfl 



' ' '"iMlli 

 POTATOES' i> 



; 



- -(SPfW) --•• •• 



Fig. 78. — Plan of irrigated farm showing the methods of irrigating dif- 

 ferent crops and the arrangement of the irrigation works for apply- 

 ing the water under the different conditions. 



