AFTER CARE — FERTILIZERS 55 
being at the edge of the strawberry patch and 
the laterals laid beneath each matted row of 
strawberries. More often the main is laid with 
laterals every ten or twenty feet apart without 
regard to the crop planted on the soil. 
The advantages of this system are: 
1. As the water comes from below up it is 
a great deal like capillarity, sometimes 
spoken of as an ideal method. 
2. Compared to the furrow, it is less ex- 
pensive, as once installed it will last for years, 
as it does not require moving of the soil each 
year. 
3. Does away with any obstruction in the 
field, everything being below ground. _Its 
greatest advantage. 
4. Earth mulches once given, are not de- 
stroyed by this method. 
Following are the disadvantages: 
1. Water does not spread laterally from 
these pipes sufficiently, so it is difficult to 
give the crop enough water. 
2. Owing to above, in order to force water 
laterally, more water is needed than by the 
furrow method. 
3. Where cost of water is high it would 
therefore be too expensive. 
