118 



importance to know what the average yield of sorghum in clean stalks 

 per acre is. Weber and Scovell 1 report yield of clean cane, equal to 

 J 5,766 pounds or 7.88 tons per acre. Professor Henry 2 gives the follow- 

 ing as the yield of cane per acre : 



Pounds. 

 First plot ............................................. 30,348 



Second plot ............................................ 23,550 



In 1882 Henry found the following as a mean yield in clean cane of 

 fifteen plots calculated to one acre: 3 Mean for fifteen experiments, 

 14,300 pounds=7.15 tons. 



The yield per acre for the field crop 4 in the several fields was as fol- 

 lows: 



First field ......................... 20,906 pounds = 10.45 tons. 



Second field ....................... 14,487 pounds = 7.24 tons. 



Third field ........................ 13,688 pounds 6.84 tons. 



In the field trial of cane by the Department at Washington in 1881 

 the average yield from 94 acres was 5,000 pounds 5 =2.5 tons. 



The mean weight of clean cane per acre as determined at Champaign, 

 111., in 1882, is seen from the following data. 6 ' 



Number acres ........................ 244. 59 



Number tons ......................... 2,682.75 



Tons per acre ........................ 9. 33=18,660 pounds. 



The average yield of 6.85 acres at the Wisconsin agricultural farm 

 in 1882 was 16,200 pounds per acre, equal to 8.1 tons. 



.Nelson Maltby obtained (mean of 17.5 acres) 9.5 tons per acre, equal 

 to 19,000 pounds. 7 



Drummond Brothers report an average of 26.5 acres, at 9.17 tons, 

 equal to 18,340 pounds. 8 



A. J. Decker 9 reports average yield of 45 acres at 6 tons, equal to 

 12,000 pounds. 



William Frazier* states yield for 45 acres averaged 6 tons per acre, 

 equal to 12,000 pounds. 



A. L. Talcott 11 estimates yield per acre at 9.6 tons (226 acres), equal 

 to 19,200 pounds. 



Belcher and Schwarz 12 report yield for 191 acres at 3 tons per acre, 

 6,000 pounds. 



J Transactions Department of Agriculture, Illinois, 1881, p. 501. 



2 Experiments in Amber cane, 1881, p. 14. 



3 Second Annual Report, Amber cane, p. 8. 



4 Op. cit., p. 14. 



5 Encouragement to Sorghum, p. 3. 

 0p. cit., p. 13. 



7 Op. cit., p. 27. 

 0p. cit., p. 28. 

 9 0p. cit., p. 35. 



J1 0/>. cit., it. 40. 

 . cit., p. 33. 



