36 



The Bulletin 



The soils of this county that show the Largest content of nitrogen 

 are Alamance Slate Loam, Congaree Silty Clay Loam, Cecil Clay, Cecil 

 Clay Loam, Mecklenburg Sandy Loam, Georgeville, Silt Loam, and 

 Mecklenburg Clay Loam; those showing the smallest amounts of this 

 constituent at the present time in the soil are Cecil Sandy Loam, Dur- 

 ham Coarse Sandy Loam, Iredell Fine Sandy Loam, Cecil Coarse Sandy 

 Loam, Durham Sandy Loam, Cecil Fine Sandy Loam, Iredell Loam, 

 and Alamance Silt Loam types, in the order given. 





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Phosphoric acid is contained in highest amounts in the soils of the 

 county in the order given: Cecil Fine Sandy Loam, Congaree Silty 

 Clay Loam, Mecklenburg Sandy Loam, Iredell Fine Sandy Loam, 

 Alamance Slate Loam, Mecklenburg Clay Loam, and Durham Coarse 

 Sandy Loam ; and lowest with Durham Sandy Loam, Cecil Sandy Loam, 

 Iredell Loam, Cecil Coarse Sandy Loam, Alamance Silt Loam, Cecil 

 Clay, Georgeville Silt Loam and Cecil Clay Loam. The Cecil Fine 

 Sandy Loam, Congaree Silty Clay Loam, Mecklenburg Sandy Loam, 

 and Iredell Fine Sandy Loam are higher, generally speaking, in con- 

 tent of phosphoric acid than most other Piedmont soils of their series. 

 Particularly is this so in the case of the Cecil Fine Sandy Loam type. 



In potash content the soils of this county, as of other counties located 

 in the Piedmont section of the State, are generally relatively high. 

 Those containing this constituent in the largest amounts are Cecil Fine 

 Sandy Loam, Cecil Coarse Sandy Loam, Durham Coarse Sandy Loam, 

 Alamance Slate Loam, Cecil Sandy Loam, Cecil Clay Loam, and George- 

 ville Silt Loam. The Cecil Fine Sandy Loam and Cecil Coarse Sandy 

 Loam contain more than 4 per cent of potash, and the Durham Sandy 



