Field Crop Costs And Returns 1948 1954 a Study of Costs And Returns in Four M

R H Wilcox

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4 Percent of wheat crop: Combined 100 100 52 Threshed 48 100 Oats Man hours per acre 3. 1 4. 0 6. 8 6. 7 Yield per acre, bushels 44. 6 43. 3 49. 2 32. 2 Minutes of labor per bushel 4. 2 5. 5 8. 3 12. 5 Percent of oat crop: Combined 100 73 9 Threshed 27 91 100 1922-1923 data used since data for 1921 not available.
b 1940-1941 data used since in 1942 only four farms harvested wheat due to severe winter killing that year.
1957] FIELD CROP COSTS AND RETURNS 27 Changes in the methods used in growing... and harvesting are re- sponsible for the decreases in the direct labor used per acre. In the early years, the reduction in hours of labor was associated with the change from horse-drawn to mechanical-powered field implements and with the adoption of mechanical harvesting machines. In the later years, the increase in size of power units that can be used to propel larger power-drawn machinery in multiple or individual units has been responsible for an even further reduction in the time spent on crops.

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