The Bulletin. 



17 



the variations were: ash, 1.89 to 2.57; nitrogen, .40 to .52; phos- 

 phoric acid, .08 to .18; potash, .86 to 1.22; and lime, .10 to .17 per 

 cent. 



Potash, phosphoric acid, and nitrogen are present in the kernels 

 and hulls in the proportion of l:1.8:3.(j and 1 :.l :.5 respectively. 



By calculation from data contained in Table IV it will be seen 

 that the average composition of whole cotton seed of all varieties 

 studied is nitrogen, 2.95 per cent; phosphoric acid, 1.42 per cent; 

 and potash, 1.19 per cent. 



Effect of Fertilization upon Maturity. — In Table V will be found 

 embodied the results of two years' work on four distinct types of soil 

 located in different parts of the State, which show very clearly and 

 strikingly the effect that fertilizing mixtures of different composi- 

 tions and in varying quantities have upon the maturation of the 

 cotton plant as indicated by the percentage of cotton open at the first 

 and second pickings. 



FERTILIZATION UPON MATURITY OF COTTON AS INDICATED BY 

 SEVERAL PICKINGS DURING 1903 AND 1904. ^ 



FARM. 



Per Cent of Seed-cotton Open at the Several Pickings. 



