18 BULLETIN 528, U. S. DEPABTMENT OF AGRICULTURE. 



FIELD OPEBATIONS AND LABOR REQUIREMENTS (165 FARMS). 



Hours of labor per acre. 



Corn (for grain): Man labor. Horse labor. 



Manuring 11. 9 n. 9 



Plowing 5. 5 11.0 



Rolling, 2 times 1. 4 2. 8 



Disking, 2 times 2. 2 8. 6 



Spike-tooth harrowing, 2 times 1.6 3. 



Drilling fertilizer 1.2 2.4 



Seeding 1.1 2.1 



Cultivating 5. 2 10. 4 



Cutting, 70-bushel yield 10. 



Husking, 70-bushel yield 19. 



Hauling grain 6. 2 6. 2 



Hauling stalks 4. 4. 



69. 3 62. 4 



Corn (for silage): 



Preparation, seeding, and cultivation 30. 1 52. 2 



Harvesting and filling silo 35. 20. 



65. 1 72. 2 



Potatoes: 



Manuring 11. 9 11. 9 



Plowing 5.5 11.0 



Rolling, 2 times 1. 4 2. 8 



Disking, 2 times 2. 2 8. 8 



Spike-tooth harrowing, 3 times 2. 4 4. 8 



Cutting seed 10. 



Planting 4.1 5.3 



Cultivating, 5 times 8. 16. 



Spraying for bugs, 2 times 1. 2 1.2 



Digging 3. 2 9. 6 



Picking up and bagging 20. 



Hauling and storing 5. 4 5. 4 



Marketing , 21. 3 16. 6 



96. 6 93. 4 



Oats: 



Plowing 5. 5 11. 



Rolling, 2 times 1. 4 2. 8 



Spring-tooth harrowing, 2 times 2. 4. 



Seeding 1.1 2. 2 



Cutting .9 2. 7 



Shocking 1.7 



Hauling to barn 3. 4 3. 4 



Thrashing — hired done by contract 



16. 26. 1 



