COTTON SOILS AND CLIMATIC ADAPTATIONS 69 



River Flood Plains Province. 



Great Plains Region. 



Miller fine sandy loam and 



clay loam. 

 Trinity clay. 

 Sharkey clay. 

 Ocklocknee fine sandy loam and 



loam. 

 Congaree loam. 

 Kalmia fine sandy loam. 

 Cahaba fine sandy loam. 



Vernon fine sandy loam, loam, 

 and silt loam. 



Crawford stony clay. 



AmariLlo loam and sUty clay 

 loam. - 



79. Cotton soils of the Coastal Plain Province. — In 



the cotton-belt the coastal plain province comprises a 

 large area of rather flat or gently rolling soil bordering 

 the Atlantic Ocean and the Gulf of Mexico from Virginia 

 to the mouth of th^ Rio Grande. The soils of this region 

 are predominantly sandy or loamy with Hmited areas of 

 very productive clay. The more important types are 

 briefly discussed below. 



The Norfolk soils. — These soils extending from Vir- 

 ginia to Texas are extensively used for cotton production. 

 They are, in the main, well-drained. In fact, the coarser 

 textured soils of this series such as the sand and fine sand 

 are excessively drained owing to their loose, incoherent 

 natm-e, and the general lack of organic matter. The 

 sandy loam and fine sandy loam of this series are better 

 suited to the production of cotton than are the sands, 

 owing to the fact that these loams are somewhat richer 

 in plant-food. They are also underlain at a depth of 

 12 to 20 inches with a sandy clay subsoil, which renders 

 them less droughty than the sands. 



