16 



The Bulletin. 



Peterkiu's Improved contained the highest percentage of oil in 

 the kernels, with 42.02 per cent, which is equal to 23.44 per cent of 

 the whole seed, while Excelsior Prolific contained the smallest per- 

 centage, with 37.26 per cent of the kernel and 20.47 per cent of the 

 entire seed as oil. This difference of 4.76 per cent of oil in the 

 kernels between these two varieties is equal to over 6 gallons of oil 

 per ton of seed. As an average of all the results of the different varie- 

 ties, the kernels contained 39.66 per cent and the whole seed 22.76 

 per cent of oil. 



On the original sample there is on' an average of 4.86 per cent 

 nitrogen, 2.40 per cent phosphoric acid, 1.33 per cent potash, and 

 .14 per cent lime in the kernels; and 2.27 per cent ash, .47 per cent 

 nitrogen, .12 per cent phosphoric acid, 1.01 per cent potash, and .12 

 per cent lime in the hulls. In the kernels the percentage of nitrogen 

 varied from 4.37 to 5.76 ; phosphoric acid, 2.22 to 2.61 ; potash, 

 1.26 to 1.48; and lime .11 to .24 per cent; while in the hulls 



Table V— SHOWING THE EFFECT OF KIND AND QUANTITY OF 



THE PERCENTAGES OPEN AT THE 



EDGECOMBE 



0) 



5 



Fertilizer. 



I Yield Seed-cotton 

 in Pounds per Acre. 



Application per Acre.- 



Formula. In 1903. In 1904. 



Nothing - 



169.8 pounds acid phosphate — 



61.7 pounds kainit 



137.6 pounds cotton-seed meal- 



l 129.2 pounds acid phosphate — 



J 18.7 pounds kainit 



\ I 412.8 pounds cotton-seed meal- 



550.3 pounds acid phosphate — 

 61.7 pounds kainit 



137.6 pounds cotton-seed meal- 



1 169.8 pounds acid phosphate--- 

 -< 228.2 pounds kainit 



( 137.6 pounds cotton-seed meal- 



O 



NPK 



N.iPK 



NPaK 



NPKs 



(425.5 pounds acid phosphate | 



•< 154.2 pounds kainit V 2'/L'NPK 



( 344.0 pounds cotton-seed meal I 



1267.50 1157.50 



1220.00 1342.60 



2120.00 1990.00 



1170.00 1177.50 



1392.50 ' 1365.00 



1630.00 1722.50 



'The varieties used in these tests were Culpepper's Improved at Red Springs and Experiment 

 Station, Russell's Big Boll at Edgecombe, and King's Improved at Iredell. 



"In 1904, blood and manure salt replaced cotton-seed meal and kainit in the fertilizer mixture 

 at all the farms, enough being used to supply exactly the same amount of all the fertilizing constit- 

 uents per acre as was supplied by the combination given and which was used in 1903. 



