SOILS. 



97 



oaks, black-jack, hickory, chestnut, (black?) gum, short- 

 leaf pine, with some long (or Spanish) moss. 



10. Brown loam uplands 5 miles southeast of Troy, Pike 

 County. Depth 8 inches. Vegetation red oak and a few 

 short-leaf pines. 



11. Upland pine woods 13 miles east of Andalusia. 

 Depth 10 inches. Vegetation long-leaf pine, post, Spanish, 

 black-jack and upland willow oaks, and hickory. 



The amounts of potash, lime and phosphoric acid are 

 probably the most significant, and are greatest in the most 

 fertile soils. Sulphur is also important, especially to legumi- 

 nous plants. Nos. 5 and 8 represent the two extremes of 

 fertility in this table. 



The table of soil texture classes, by percentages (Table 

 20) has been compiled from the existing government soil 

 surveys. When the few remaining counties are surveyed 

 and some of the older surveys revised the results can be 

 made more accurate. The only regions for which we have 

 sufficient data to attempt percentages are the red hills (both 

 divisions), lime hills, and southwestern pine hills. 



TABLE 20. 

 Percentages of soil texture classes in four regions. 



4 AR 



