18 



The Bulletin. 



Table V— SHOWING THE EFFECT OF KIND AND QUANTITY OF 



THE PERCENTAGES OPEN AT THE SEVERAL 



RED SPRINGS 



Fertilizer. 



Yield Seed-cotton 

 in Pounds per Acre. 



S 



Application.' 



Formula. In 1903. 



Same as No. 1 above - 

 Same as No. 2 above - 

 Same as No. 3 above- 

 Same as No. 4 above - 

 Same as No. 5 above - 

 Same as No. 6 above - 



O 

 NPK 



NsPK 

 NPsK 



NPK;, 



600.00 

 1020.00 

 1400.00 

 1250.00 

 1090.00 



2i^NPK 1580.00 



In 1904. 



347.50 



927.50 



1207. 50 



1032-50 



865.00 



1225.00 



IREDELL 



I 



1 Same as No. 1 above - 



2 Same as No. 2 above- 



3 Same as No. 3 above . 



4 Same as No. 4 above- 



5 Same as No. 5 above- 



6 Same as No. 6 above - 



O 

 NPK 

 NaPK 

 NP.iK 

 NPKs 

 2ViNPK 



380.00 

 925.00 

 780. 00 

 1130-00 

 1275-00 

 870.00 



337.50 

 1280.00 

 1070.00 

 1387.50 

 1305- 00 

 1250.00 



EXPERI.MENT 



„ I Same as No. 1 above O 211.20 221.20 



2 j Same as No. 2 above NPK 1021.80 1230-00 



3 Same as No. 3 above NsPK 944.20 1202.40 



4 Same as No. 4 above NP.iK 823-00 1144-60 



5 Same as No. 5 above NPKa 731.20 820.00 



6 Two times No. 2 above 2NPK 1178.20 1391-20 



^ 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. 



