THE PRESENT STATUS IN CALIFORNIA 383 
operation. The reports of the Dry-farming Congress 
furnish practically the only general information as 
to the status of dry-farming in the states and terri- 
tories of the United States and in the countries of 
the world. 
California 
In the state of California dry-farming has been 
firmly established for more than a generation. The 
chief crop of the California dry-farms is wheat, 
though the other grains, reot crops, and vegetables 
are also grown without irrigation under a compara- 
tively small rainfall. The chief dry-farm areas are 
found in the Sacramento and the San Joaquin valleys. 
In the Sacramento Valley the precipitation is fairly 
large, but in the San Joaquin Valley it is very small. 
Some of the most successful drv-farms of California 
have produced well for a long succession of years 
under a rainfall of ten inches and less. California 
offers a splendid example of the great danger that 
besets all dry-farm  seetions. For a generation 
wheat has been produced on the fertile Californian 
soils without manuring of any kind. As a conse- 
quence, the fertility of the svils has been so far de- 
pleted that at present it is difficult to obtain paying 
crops without irrigation on svils that formerly 
vielded bountifully. The living problem of the dry- 
farms in California is the restoration of the fertility 
which has been removed from the soils by unwise 
