214 COTTON PLANTER'S MANUAL. 



Composition of the above Ash, as taken away by a crop from 

 one acre (in pounds). 



BY THE FIBRE. BY THE SEEDS. IN ALL. 



Potash, . . . 0-881 8'403 9-284 



Soda, . . . 0-128 0'266 0'394 



Lime, . . . 0-418 1-451 1'869 



Magnesia, . . 0'237 3'320 3-557 



Peroxide of Iron, . 0'051 0'132 0-183 



Silicic Acid, . . 0*007 trace 0'007 



Phosphoric Acid, . 0-136 8'669 8'805 



Sulphuric Acid, . 0'088 0'958 T046 



Chloride, . . . 0'166 0-113 0279 



Carbonic Acid, 0'3S8 0'868 T256 



2-500 24-180 26-680 



This table shows, that in order to maintain a soil in its 

 original excellence, manures must be added having the com- 

 position of the cotton cultivated ; and they must, for practical 

 utility, not only contain all the constituents of the cotton, but 

 have an excess to provide against loss from all sources which 

 tend to the depreciation of manures. 



The manure compounded by you for the cotton plant, is 

 mainly composed of these ingredients, and must of consequence 

 be peculiarly adapted to its growth, and the permanent im- 

 provement of the land upon which it is grown, since more of 

 it is applied than is consumed by the plant. 



I have been very cautious, for various reasons, to recom- 

 mend no artificial manure unless guaranteed as to its composi- 

 tion, as the objection to many artificial manures is that they are 

 not made of uniform character. This objection is met, in that 

 which you sell, by the guarantee which you give ; a thing 

 done according to suggestions given in the Second Annual 



