42 



RELATION 0? CAPILLARITY TO TRANSFER OF FERTILIZING 

 CONSTITUENTS. 



King at th© Wisconsin Station (see p.3X^), found that 

 aft^r evaporation experiment e had run for some tim«, salts 

 aG6uiauiat®4l on the surface in eufficient amounts to hinder 

 the lose oS water. The same investigator, when discussing 

 the high salt content in the upper four feet of some soils, 

 obcervas j "It is tha writer's judgment that the relatively 

 high salt content for the soils of Georgia ind South 

 Carolina ar«. to & eoueiderable extant due to a protracted 

 drought, which had prevailed in the regions where the 

 samples were taken, and which, through capillary rise and 

 long and strong evaporation had concentrated the salts in 

 the zone sampled." 



Warrenton (Physieal Properties of Soils, 191) states 

 that, salts may be concentrated in a solid form or ts a 

 strong solution at the surface ; this is especially the case 

 after active nitrification, after drought, or especially 

 and to the greatest extent after the application of a 

 dressing of saline manure. Opposed to this tendency to 

 accumulation at the surface we have the action of rain which 

 tends to carry all soluble salts into the subsoil. 



