386 



Irrigation and Drainage 



Fig. 113. Furrow flooding in garden. 



quickly filled, are supposed to hold sufficient water 

 for one irrigation, enough to cover the whole ground 

 2.5 to 3 inches. In Fig. 114 is represented a cross 

 section of the rows. 



In still other cases shallow basins are formed 

 about each row of plants, as represented in Fig. 115, 

 where cabbages have been set. It will be noted that 

 the basins are not only narrow but short, so that 



each may be quickly filled, 

 one after another, from a 

 r^^n^;--.^^-^-v-?-.^;-i-.^; stream led along an alley 



Fig. 114. Diagram of section of rows between tWO Sets. As the 



plants become larger the 



ridges are gradually cut down to hill the plants, and 

 thus form water furrows in their stead. This is one 



