4 BULLETIN 1447, U. S. DEPARTMENT OF AGRICULTURE 
KINDS AND AMOUNTS OF TRACTOR WORK PER FARM 
Kinds and amounts of work per farm performed by tractors in 
1922 are shown in Tables 3 and 4. There was considerable variation 
in the total number of days of annua] tractor work, depending some- 
what on the size of farm and size of tractor. The variation in days 
of annual use per tractor was from 7.4 to 115.7. The average was 
fifty and eight-tenths 10-hour days per farm. 
TABLE 3.—Kinds and amounts of tractor work per farm on 31 tractor farms 
1922+ 
a Percent- 
tor age of 
fs ae Farms |Man days Me 
Kind of work reporting | per farm 2 Cova pet Ay oe 
days 
Drawbar work—home: 
Plowing— Number | Number | Number | Per cent 
FS) O} er as-cast SR pn Seat a cat aeece, Sa lay a Ef SS - 27 29. 4 23. 3 45.9 
1 Ot ea eteses ae Mec a ae ee eT. re ee ee Se 0 0 0 0 
Harrowing— : 
Spikes. iis 's 26 es a AE See Se SE ae ee ee. 4 1.4 1.4 ONZE 
Springs! 2223022 1 oe oe Si. hae ee ee bape gape ep ence ae 3 .4 .4 8 
Disking before)plo wang Mee Sees eee ee ene ee ee ee 16 4.4 3.7 7.3 
there cis eer ps 5 see ek aes a ake nr a 3 .3 .3 .6 
Pp MC 0 00 0 ga AS eS EPR NY SU eG ie a ee 2 54) .6 1.2 
Drilling f20 50 PRA Ee a ERS alge Dae Er ea a ie a 6 2.9 a6) 2.9 
Harvesting and threshing with combine__________________-- 21 65. 3 13.6 26. 8 
Miscellaneous22 2222 sae Se One SSeS ane Semon Se peee ee 11 .8 -8 1.6 
Totals 6. 22sec 31 105.5 45.6 89. 8 
Drawbar work—custom: 
PlOWin ge. Se iis SE Gs Rae a ee eR p aS eRe eee 4 1.6 1.6 3 JI 
I. arro win G2 2s ee AN SO Sy Re eu Fok be SS 1 .4 .4 .8 
Harvesting and threshing with combine___________________- ate 13R5 2.8 DF) 
ROA AWODK 2 BAPE Sis EGE ee) pe eae ee Seeger Pe 1 1 ell ey 
TO tal As ae ARES Se > BRS ENE Sen Beh ae PA ye ee 15 15. 6 4.9 9.6 
Belt work—home: 
Heed orinding assis yee Sei seers ts ER eae, Ce Reed bayer = par 1 5) 53 .6 
Motaliwork=—homers 285 ss a Ss ee ep ee ee a 31 106. 0 45.9 90. 4 
RObalwork=—CUSUOIIN 3 e202 Te See ah gaara ae pa 15 15.6 4.9 9.6 
‘Rotal-all work | sa. SoS So ae 5 ee gare open nd esneloge Se he wre 31 121.6 50. 8 100. 0 
1 Farms on which more than one tractor was owned or on which there was an excessive amount of con- 
tract horse or tractor work have been omitted from this table as well as from Tables 4, 5, and 6. 
2 Averages for total number (31) tractor farms. 
TABLE 4.—Various drawbar operations and proportion done with horses and 
with tractors on 31 tractor farms, 1922+ 
Work per farm Percentage of total 
done with 2— work done with— 
Kind of work 
Tractors | Horses | Tractors | Horses 
Plowing: Acres Acres Per cent | Per cent 
SPP Gs oe Sa yea eee ee te ule renee 421 132 
Sea 3 spt oes irs ee PR CS a ES terra a ON LY aa ° lla) are 100 
Harrowing: 
Spik@2 eae oe ten swells Sires Gab os Pea eae CS aia he 116 1, 214 9 91 
rH ©) of +e om gan a sea pare se RASS Te Fa A heen ee SS PA 17 23 43 57 
Disking heflore: Plowing sees ae ee Mae eae eer eae 209 12 95 5 
Other Gis kang 87 8 2 ee 2 Sere i ee ea ace el aU ec aa Aa 12 5 71 29 
VV Cer i pe Sse cre ag ee eg a 47 474 9 91 
if 10 Vb af seamen REN oN ar emea lee nm he Clee Sen NC a 106 462 19 81 
Harvesting and threshing with combine_______________________- 446 87 84 16 
1 Averages for the total number (31) tractor farms. ; 
2 For such operations as harrowing, disking, and weeding, the acres of work done are figured on the basis 
of once over the ground; that is, if a 50-acre field was disked twice, the total acres covered are 100 acres. 
