SEASONAL DISTRIBUTION OF FARM LABOR. 



13 



use. It is quite possible also that the acreage plowed in July and 

 August, when the ground is dry and compact, will be less than the 

 figures given. 



The average disk harrow has usually 12 disks in the single and 

 24 disks in the double acting harrow, from 14 to 16 inches in diam- 

 eter, with a cutting surface about 8 feet wide. The spike-tooth 

 harrow is usually 2 to 3 section, with a cutting surface of from 8 

 to 12 feet, and the spring tooth has a cutting surface of from 6 to 

 8 feet in width. The plank drag is usually made with three planks 

 overlapping, and the man usually rides. Following a deep-working 

 harrow the drag is an excellent tool for leveling and breaking clods. 



Table IV. — Crews and duty of machinery in cultivating and harvesting corn {average of 



24 farms). 



Operation. 



Crew. 



Men. 



Horses. 



Acres 

 covered 



10-hour 

 day. 



Days per acre. 



10-hour day. 



Men. Horses, 



9-hour day. 



Men. Horses. 



Planting (2-row machine) 



Weeding 



Spike-tooth harrow 



Cultivating 1 . 



Cutting: 



50-bushel yield 



60-80-bushel yield 



80 bushels and over 



Husking: 



50-bushel yield 



60-80-bushel yield 



80 bushels and over 



Hauling grain 



Do 



Hauling stalks 



Do 



Filling silo: 2 



Cutting by hand and loading . 



Hauling to cutter 



Feeding the cutter 



Storing in silo 



Running engine 



10.50 

 18.00 

 13.00 

 7.70 



1.25 

 1.00 



.85 



.74 

 .53 

 .44 

 2.20 

 3.20 

 5.00 

 6.50 



0.11 

 .06 

 .08 

 .13 



1.00 

 1.18 



1.35 

 1.80 

 2.27 

 .45 

 .62 

 .40 

 .45 



3.50 



0.21 

 .06 

 .16 

 .26 



2.00 



0.11 

 .06 

 .08 

 .15 



.88 

 1.11 

 1.32 



1.50 

 2.09 

 2.53 

 .50 

 .70 

 .44 

 .51 



0.22 

 .06 

 .16 

 .30 



1.00 

 .70 

 .44 

 .34 



i This operation is usually performed 4 times. 



2 Average yield of silage corn, 12 tons per acre. 



Table IV gives crews and duty of machinery as the average on 24 

 farms for planting, cultivating, and harvesting corn. Planting is 

 usually done with a 2-row planter. The figures used do not include 

 the drilling of fertilizer in the row at the time of planting, which 

 consumes extra time, and allowance should be made in the acreage 

 planted where fertilizer is applied. The figures for spike harrowing 

 in this table are for harrowing after planting. 



Field corn is usually checked 3^ feet each way by most of these 

 farmers, though a number of good corn growers are planting in drills. 

 Silage corn is planted either in drills or in hills. No figures were 

 obtained for hand planting, as the 2-row planter is universally used. 

 Corn is cut and shocked by hand except where it is to be put in the 



