118 THE ROYAL SOCIETY OF CANADA 
WASHINGTON CULTURE—RED CLOVER—PLOT EXPERIMENT 








From Untreated | From Inoculated 
Seed Seed 
Lbs Oz. Lbs Oz 
lstreutpin AU oust) Obhn seni = | 44 12 | 61 1 
2nd ~ September 2 Ab PAPE | 44 15 44 13 
OCR UN sess po cree EE 93 9 105 14 


The increases from inoculation while not very large are probably 
sufficient to indicate that some benefit might be derived from the 
employment of this culture. 
O.A.C. Cultures: These preparations were kindly furnished from 
the bacteriological laboratories of the Ontario Agricultural College, 
Guelph. They differ from the Washington cultures in being preserved 
and distributed in a gelatinous medium. The trials, made with both 
clover and alfalfa, were conducted in pots and in the field. Speaking 
first of the clover from the pots, at the time of the first cutting, no 
difference in vigour could be observed between the various members 
of the series and the weights obtained substantiated this impression. 
At the second and third cuttings, however, the influence of the culture 
showed itself and marked increases in yield were recorded for both 
“seed” and “soil” inoculation. While it is not clear which is the more 
effective—seed or soil inoculation—the final results give marked 
evidence of the value of the culture. Compared with those from the 
Washington culture they demonstrate the superiority of the O.A.C. 
preparation. 
O.A.C. CULTURES—RED CLOVER AND ALFALFA—POT EXPERIMENT. 




Clover Alfalfa 


| 
Soil In- Un- Seed In- | Soil In- 
oculated| treated, oculated| oculated 
Un- | Seed In- 
treated | oculated 







Ist cutting........ | 125-7 124.2 128-6 58-1 Ages 55-5 
One ee 125-8 183-3 | 175-3 Pilon ileal EET] 
CF D eee ee | 123-2 143-2 | 140-5 74.9 98-9 110-5 
pn | 
Hiva 374-7 450-7 | 444-4 204-5 217-3 249-1 

