22 



The comparative earliness of the crop, the increase and value of the 

 same, and the net gain by the use of fertilizers are shown more in 

 detail for the respective plats in the table below: 



Table Y. — SJiowing treatment of, and resuJis from, j^lats in Department of Agriculture^ s 

 bollworm experimental farm at Pittsburg, Tex., 1904. 



I 



II 

 III 

 IV 



Hetty. 

 ...do.. 



...do.. 

 ...do.. 



[300 pounds. 

 \ R. P.O. 

 (400 pounds. 

 \ C.B.G. 

 /320 pounds. 

 1 R. A. P. 

 jUnfertil- 

 I izrd. 



Weights of seed cotton 

 picked — 



1 ' 



Upr. 13 j 8 31,403.8148.6 358.8 



|...do... 

 |...do... 

 [...do... 



8 3 997. 8 158. 6 340. 6 

 8 31,202.8 282.0 499.0 

 8 3 694. o' 377.0 



Average price per pound lint cotton I 11^ lOj^g lOi^el 9^^ 



sa 



S'O 



397. 4 375. o 123. 4 709. 8 S23. 53 13. 23 S20. 30 



III! I 



266. 4 162. 2 70. 303. 8 10. 07 4. 60l 5. 47 



307.2125.8 



!297. 6 



38.8 508.8 16.86 3.04; 13.82 

 19.4 



Plats 1 and IV are compared graphicall}^ with respect to earliness" 

 and 3'ield in figure 2. 



Fig. 2.— Diagram comparing Plats I and IV of the Pittsburg (Tex.) farm, fertilized and unfertilized, 

 respectively, with regard to earliness and yield of seed cotton. 



In connection with the above results as to final 3'ield should be 

 considered certain data relative to the rate of fruit production during 



212 



