14 



BULLETIN 338, U. S. DEPARTMENT OF AGRICULTURE. 



Table IX. — Corn planters — relation of worh done annually to service and cost per acre 

 and per day used on 169 farms. 



Range of area covered annually acres 



Number of records included 



Average area covered annually acres 



Years of service rendered 



Acres covered during life 



Days actually used during life 



Size of implement 



Cost when new 



Total cost of repairs during life 



Total interest during life at 6 per cent 



Total of depreciation, interest, and repairs during life 



Cost of corn planter: 



Per day used 



Per acre planted 



lto5. 



6 to 10. 



72 



4.1 



11.7 



48.0 



10 



l-row. 



97 



8.3 



11.0 



91.3 



9 



2-row. 



$12. 00 

 8.07 

 5.38 



$40.00 

 18. 4S 

 12.41 



25.45 



70.89 



$2.55 

 .53 



$7.89 

 .79 



THE ONE-HORSE CULTIVATOR. 



The average 1 -horse cultivator lasts 14 years and does 58 days of 

 work (Table X). The farmer who cultivates annually 60 acres, as 

 compared with the man who cultivates only 7, obtains over five times 

 as much acreage and days of use from a similar implement. 



Although the larger acreages are cultivated by the more expen- 

 sive and better implements the machines working the smaller acre- 

 ages annually are, nevertheless, the more expensive per acre. The 

 average depreciation charge was found to be $0,027 per acre and the 

 interest charge, at 6 per cent, is $0,012 per acre. 



Table X. — One-horse cultivators — relation ofioork done annually to service and cost per 

 acre and per day used on 926 farms. 



Range of area covered annually acres - 



Number of records included 



Average area covered annually acres . 



Years of service rendered 



Acres covered during life 



Days actually used during life 



Cost when new 



Total cost of repairs during life 



Total interest during life at 6 per cent 



Total of depreciation, interest, and repairs 

 during life 



Cost of 1-horse cultivator: 



Per day used 



Per acre cultivated 



1 to 10. 



11 to 20. 



41 and 

 over. 



Average. 



476 



6.8 



15.2 



103.4 



25 



»i. 00 

 3.80 

 2.89 



$0. 507 

 .123 



352 



15.4 



14.7 



226.4 



56 



27 



28.2 



12.8 



361.0 



$6.50 

 5.88 

 3.09 



$7.25 

 5.37 

 3.07 



71 

 57.9 

 9.6 



555.8 

 137 



$8.50 

 5.47 

 2.69 



$0. 276 

 .068 



$0. 176 

 .043 



$0. 121 

 .029 



16.9 



14.0 



236-6 



58 



$6.50 

 4.90 

 2.94 



14.34 



$0. 247 

 .060 



The average repairs for 1-horse cultivators amount to $4.90 during 

 their entire life, or about 75 per cent of the first cost of the implement. 

 The average repair charge per acre is $0,021 and per day $0,085. 



