IRRIGATION AT UNIVERSITY FARM, DAVIS, CAL. 3 
During the growing season the growth and condition of the crops 
were carefully observed, and at the end of the season the results were 
as stated below : 
No irrigation. — At the end of November only about one-third of 
the stand seemed to be alive, and this had made not more than a 
1 or 2 inch growth after it was first cut in June. 
IRRIGATION TRACT 
UNIVERSITY FARM 
DAV1S.CAL. 
Fig. 1. — Irrigation tract, University farm, Davis, Cal. 
One irrigation. — The alfalfa given one early irrigation showed 
practically no growth after the first cutting on May 14. Even after 
the heavy irrigation of June 5 it failed to make a substantial growth, 
and at the end of the season not more than one-half of it was alive. 
The explanation of this is that it was given too early an irrigation. 
The plats were irrigated before the roots had penetrated beyond the 
surface soil, and when this had dried out, following the first irriga- 
tion, the roots were stranded in a surface soil without sufficient 
moisture to forward the growth. 
