40 COTTON. 



1893. 



By O. W. Sutton, Mt. Olive, Duplin Co. Bulletin No. 89, page 36. 

 Soil — Sandy; clay subsoil. Best financial result came from a mix- 

 ture of cotton-seed meal with kainit, amounting to $7.51 per acre 

 from 1039 lbs. of seed cotton against 649 lbs. from unmanured plots. 

 Stable manure produced a financial loss of $21.84. 



"Conclusions: All the fertilizers paid well except phosphoric acid 



alone. Nitrogen and potash were the dominant elements." 



SOUTH CAROLINA, 1886. 



Report of Experiment Farm. By R. H. Loughridge. 



"The presence of potash appears to have had more eflfeci on the 

 yield than the ammonia." 



Yields: "The acid phosphate alone has yielded 1926 lbs, of seed 

 cotton per acre, while with the addition of kainit its yield is increased 

 302 lbs." 



Profit or Loss: "The mixture acid phosphate and kainit gave a 

 profit of $6.21." 



1888. 



By J. M. McBryde, Director. First Annual Report. 



"It is very clear from these averages that the potash was equally 

 effective at all three farms, showing an increase of from 100 lbs. to 140 

 lbs. of lint per acre; hence the question of relative cost of the potassic 

 fertilizer becomes an important one. 



"The muriate of potash would be preferred as being the cheapest 



of the three." 



1889. 



By J. M. McBryde. Bulletin No. 2. This bulletin is devoted to a 

 discussion of the results with fertilizers upon cotton obtained in 

 three years, 1888-90, upon the farms at Spartanburg and Darlington. 

 The soil at Spartanburg is clay loam, and at Darlington sandy loam. 

 The results obtained upon the two farms are much alike, and justify 

 the consideration of both together. They convey a clear idea about 

 manurial needs of cotton upon a certain class of the worn-out soils 

 of the South. 



"The combination of potash, phosphoric acid and nitrogen gave 

 an average increase, as compared with unfertilized average, of 300 per 

 cent, at Spartanburg and 250 per cent, at Darlington, and averaged 

 100 lbs. per acre more lint than any combination of any two of them. 



