374 SOILS: FMOPEBTIBS AND MANAGEMENT 



Substances Removed in Deainage Water from One Acre 



OF Land in One Year 





Norton 



Lyon and Bizzell 





Planted Soil 



Bare Soil 



Total solids .... 

 Organic matter . . . 



Nitrogen 



Potash 



Phosphoric acid . . . 

 Lime 



794.0 



134.0 



4.0 



5.0 



0,1 



81.0 



800 







11 



6 



Trace 



158 



2584 







119 



11 



Trace 



407 



It will be seen that the total solids in the drainage 

 water from the Arkansas land and from the planted 

 tank were not greatly different in amount, but that 

 none of the constituents differed greatly. This was 

 notably the case with organic matter and with lime. 

 The former was doubtless carried largely in the run-off 

 and not in the leachings. The latter was probably more 

 abundant in the glaciated soil used in the tank than 

 in the residual soil of Arkansas. 



