14 



SOILS IN THE VICINITY OF BRUNSWICK, GA. 



Cabbage palmetto is frequently seen on this soil. Pine and st 

 palmetto are also common. 



On account of its moist nature and adaptability to subirrigatioi 

 much of the Portsmouth fine sand is well suited to the production of 

 celery. Lettuce, Irish potatoes, sweet potatoes, cabbage, turnips, 

 onions, strawberries, corn, sugar cane, peanuts, and forage crops can 

 also be successfully grown. The soil should be limed at the rate of 

 about 1,500 to 2,000 pounds per acre. After a year or two of culti- 

 vation green or partly matured vegetation, for instance, cowpeas, 

 should be plowed under to supply humus. Heavier applications of a 

 fertilizer somewhat higher in nitrogen and lower in phosphoric acid 

 and potash than recommended for the Portsmouth loam seem to give 

 best results on this soil. An acreage application of 1 ton to 1^ tons 

 of an 8-5-6 brand, in conjunction with 4 or 5 tons of barnyard 

 manure, has been quite profitably used for celery and lettuce. Cab- 

 bage and onions would probably need more barnyard manure and 

 less fertilizer. Corn, unless heavily fertilized, can not be expected to 

 do as well as on the loam type. Crab grass grows luxuriantly and 

 should be looked on as an important hay crop or source of green 

 manure, especially following vegetables. 



Tile drains for subirrigation should be placed about 25 feet apart. 

 In those areas without a water table or well-developed hardpan above 

 36 inches, subirrigation, owing to downward instead of lateral and 

 upward movement of water, would probably not be sufficiently effect- 

 ive to warrant its practice. Much of this latter phase, however, lies 

 well for surface irrigation. The type is in need of drainage, such as 

 can be secured either by ditches or by tiling. Tiles serve the dual 

 purpose of removing excess water and of supplying means of sub- 

 irrigation. 



This soil was sampled in three sections soil, subsoil, and lower 

 subsoil, analyses of each of which were made. The results are given 

 hi the table following: 



Mechanical analyses of Portsmouth fine sand. 



PORTSMOUTH CLAY. 



The Portsmouth clay consists of a black sandy clay, underlain 

 3 to 5 inches by a very stiff, tenacious, sticky black clay which extei 



[Cir. 21] 



