224 



Bacteria in Relation to Country Life 



sandy soils were inoculated, in most cases for lupins 

 or seradella. The results were contradictory, some 

 experimenters reporting a decided success, others 

 complete failure. It was agreed, however, that on soils 



Fig. 38. A soybean plant and root, inoculated with soil, are shown at (a); a 

 soybean plant, untreated, is shown at (6), and soybean plant and root, 

 inoculated with soybean chaff, are shown at (c). 



newly placed under cultivation, on soils that had been 

 deepened recently and had had much of the subsoil 

 brought to the surface, and on soils that had been burned 

 over, inoculation was likely to prove successful. In- 

 stances were also reported of light, sandy soils and of 

 impoverished loam soils in which inoculation yielded 



