550 



Florida Station, Bulletin No. 12, January 1, 1891 (pp. 16). 



Tobacco, cotton, rice, and sorghum, .t. P. De Pass (pp. 3-11).— 

 Brief accoauts of experimeuts with thuse crops, and directions for the 

 cnlture of tobacco. 



Ashes as a fertilizer, J. M. Pickell, Ph. D. (pp. 11-13). — An 

 explanation of the vahie of wood ashes as a fertilizer. 



Miscellaneous analyses, J. J. Barle, B. A. (pp. 13-15).— Tabu- 

 lated resnlts of ash analyses of pine straw, pine burr, pine bark, oak 

 leaves, beggar weed, rag-weed, and Spanish moss. 



Georgia Station, Third Annual Report, 1890 (pp. 8). 



This contains the reports of the governing board, director, and treas- 

 urer of the station, which include brief accounts of the work and publi- 

 cations of the station for the year 1890. 



Georgia Station, Bulletin No. 10, December, 1890 (pp. 20). 



Fertilizer experiments on corn, R. J. Redding (pp. 129-140). 



Special nitrofjen experiments. — An account is given of two experiments 

 on I he station farm, each on twenty-five plats, three fortieths of an 

 acre in size, the object of which was " to find out whether corn, in tiie 

 climate and soils of Georgia, is benefited by the application of nitrog- 

 enous fertilizers, and in what forms and in what quantities, having 

 due regard to character of soil, the nitrogen may be most profitably 

 applied." The two experiments were exactly alike, except that one 

 half of the land used for No. 2 was subsoiled, "the object being to 

 ascertain the effect of subsoiling on the crop." The land had beeu 

 used for cotton the previous year, for which it was well fertilized. 

 "The quality was by no means as uniform as could be desired for such 

 a test, as is shown by the varying yields of the unfertilized, and of the 

 identically fertilized plats." The fertilizers applied were the same in 

 both experiments as those recommended in Circular No. 7 of this Office, 

 except that dried blood was only used on one plat; that stable manure 

 was applied to one plat; and that cotton-seed meal, 360 pounds per 

 acre, was used alone, and the same quantity, 720 pounds, and 1,080 

 pounds were each combined with mixed minerals (superphosphate and 

 muriate of potash). The tabulated data include the rain-fall at the 

 station for each month during the growing season, the fertilizers 

 applied and their cost per acre, and the yields of corn per plat and 

 per acre. The results were suggestive but not conclusive, the land not 

 being sufficiently uniform in fertility, and the results of the two experi- 

 ments not full.y sustaining one another. The general indications 

 derived fromi these experiments were as follows: 



