348 SOILS: PROPERTIES AND MANAGEMENT 



Complete analyses of the soil from the several plats were 

 also made : 



YIELDS OF CROPS, AND COMPOSITION OF SOIL AND WATER 

 EXTRACT OF SOIL, ON ROTHAMSTED EXPERIMENT STATION 

 FARM 



A similarly treated set of plats, which had been planted 

 to another crop and analyzed as were these, gave similar 

 results. It is a very striking example of the effect of 

 long-continued treatment of the soil with a certain fertilizer 

 on the composition of the water extract. The subject, 

 however, must be investigated further, as it is of funda- 

 mental importance to a knowledge of the properties of 

 soils. 



