VERTICAL FARMING 



67 



SHATTERING SUBSOILS WITH FARM POWDER 



A single cartridge of explosive can easily convert several yards 

 of compact and useless hardpan into half an acre of new feed- 

 ing ground. Costly, massive, improved machinery enables the 

 farmer to spread out his operation, to move horizontally, and 

 handle more acreage in the same time, and he is ever eager to 

 double and treble his holdings of fertile soil. What is wanted 

 is something that enables him to move vertically down and 

 double his acreage, and double his yield by doubling the fer- 

 tility of the soil, by doubling the depth of the feeding zone, by 



