454 Report of the Department of Field Crops of the 



(2) Effect of stable manure on percentage of sugar in beets. — 

 At the Station the percentage of sugar was increased 0.5 to 3.2 

 per cent with an average increase of 2 per cent. At Fayetteville 

 the use of stable manure increased the percentage of sugar in four 

 cases and decreased it in two cases, there being an average increase 

 of 0.7 per cent. Taking all the work at both places, there was an 

 average increase of 1.5 per cent of sugar. 



Tabulated Summary Showing Effect of Stable Manure on Peecentage 



of Sugar in Beets. 



(3) Effect of stable manure on coefficient of purity. — In the 

 Station experiments the coefficient of purity increased in every 

 case except one when stable manure was used, the increase varying 

 to 2.6 and averaging 1.3. At Fayetteville, the coefficient of 

 purity increased in three cases and decreased in three cases, there 

 being an average increase of 0.9. Taking the work in both places, 

 there was an average increase of 1.6. 



Tabulated Summary Showing Effect of Stable Manure upon Coefficient 



of Purity. 



(4) Effect of stable manure on cost of crop. — It would be a 

 conservative estimate to place the cost of stable manure at $2 

 a ton, including costs of drawing to field and applying. The ap- 

 plication of 20 tons would, therefore, cost $40 an acre. 



