BURR CLOVER 299 



the soil and keeps it moist, which, in conjunction 

 with the influence of the roots, puts it in a friable 

 condition. When the plants grow rankly", it is not 

 easy to bury them properly with the ordinary plow, 

 but in such instances, if cut up with a disk harrow, 

 the work is facilitated. The plants quickly die down 

 so as to make plowing easily possible, but the aim 

 should be to have such decay take place within the 

 soil rather than above it. 



