i8 BULLETIN 412 



requirements of the factories regarding the time of harvest. The cost 

 of harvesting will vary with the yield. Basing the calculation on these 

 assumptions, the average cost per ton of shelled peas would have been 

 $73.66 if the yield had been 1800 pounds per acre (table 7). This^figure 

 is very close to the cost in 1920 on a group of farms, the average yield of 

 which was approximately 1800 pounds. 



TABLE 7. ESTIMATED COST OF PRODUCING ONE TON OF PEAS IN 1920 

 WITH A YIELD OF 1800 POUNDS PER ACRE 



(Based on data from 262 farms) 



Cost of growing $53.72 -r- 0.9 (0.9 ton = 1800 pounds) = $59.69 



Cost of harvesting $18.42 -r- 1.123 (tons, average yield in 1920) = $16.40 



Total cost per ton of peas $76 . 09 



Value of ensilage $2.73 -r- 1.123 (tons) = $2 . 43 



Estimated net cost per ton of peas $73 . 66 



In table 8 are given the quantities of the principal items required to 

 produce one ton of shelled peas with a yield of 1800 pounds per acre. 

 The items of cost included in this table made up approximately 97 per 

 cent of the total cost. Costs change with changes in price. By using 

 the figures for the average quantities of the various items required to 

 produce a crop, the cost with different prices may be estimated. These 

 quantities were calculated by the method illustrated in table 7. The 

 quantities of all items in the growing cost were divided by 0.9. This 

 gave the quantity of these items required to grow one ton with an average 

 yield of 1800 pounds. Similarly, the quantities of all items in harvesting 

 costs were divided by 1.123. This gave the quantities of the items 

 required to harvest one ton. Items which were included in both growing 

 and harvesting costs, such as human and horse labor, were added together. 



TABLE 8. ESTIMATED QUANTITIES OF THE PRINCIPAL ITEMS REQUIRED 



TO PRODUCE ONE TON OF PEAS IN 1920 WITH A YIELD OF 



1800 POUNDS PER ACRE* 



(Based on data from 262 farms) 



*The items included made up 97 per cent of the cost in 1920. 



