304 



IRRIGATION PRACTICE 



percentage of seed increased with the water, which is 

 distinctly different from the behavior of the grains, in 

 which the proportion of seed decreases with an increase 

 in water. From 10 to 15 niches of water are probably 

 ample for the production of peas or beans under present 

 methods. This depth will be decreased as irrigation prac- 

 tices are perfected. 



FlG. 81. Irrigated celery. 



