COTTON SOILS AND CLIMATIC ADAPTATIONS 73 



composed of a reddish clay loam to a depth of 2 to 6 inches, 

 underlain by a heavy red clay subsoil. The clay loam is 

 reddish-brown to a depth of 6 to 12 inches, underlain by 

 a red clay loam and clay subsoil. 



The Cecil soils require liberal applications of vegetable 

 matter and to a less extent lime, in order to be made pro- 

 ductive. 



The Louisa series. The soils of this series consist of 

 light brown or pale yellow friable loams, ranging in depth 

 from 5 to 8 inches. The subsoils are pale yellow loams, 

 often grading into a red clay. The yields of cotton are 

 usually low. In dry years crops suffer from lack of mois- 

 ture. It is often difficult to maintain these soils in good 

 structural condition, owing to their inclination to run 

 together or bake. 



81. Cotton soils of the Appalachian Province. This 

 province is not extensive in the cotton-belt. It comprises 

 part of Tennessee, northwest Georgia, northern Alabama, 

 and the Ozark region of Arkansas. Soils of the DeKalb 

 series and the Fayetteville fine sandy loam are the im- 

 portant cotton soils of this region. 



The DeKalb soils. The two important cotton soils 

 of this series are the DeKalb fine sandy loam and silt loam. 

 The former is a fine, compact sandy loam ranging in depth 

 from 8 to 12 inches and underlain by a very loose loamy 

 subsoil. The latter soil is not so compact and the subsoil 

 is a friable silt-clay loam. Commercial fertilizers are 

 necessary on both types in order to secure good yields of 

 cotton. These soils occur in that portion of the province 

 found in Tennessee, Georgia, and Alabama. 



The Fayetteville fine sandy loam. This is the important 

 cotton soil of the Ozark region of Arkansas. It is 8 to 12 

 inches deep, of a reddish-gray color, and underlain by a 



