EFFECT OF BACILLUS RADICICOLA ON ALFALFA 7 1 



M- 



ALFALFA 

 ^^INCJCULAT£> 



ALFALFA 

 ^WOCULATEO 



*.fi-fj 



Fig. 7. — Alfalfa in sterilized sand to which plant food minus nitrogen has 



been added. 



s .-f^ Exercise 36 



Effect of Bacillus Radicicola on the Growth and the 

 Nitrogen Content of Alfalfa (Optional) 



I. Prepare four ^-gallon jars of clean sand and four of 

 coal-ashes. --"'""' 



