The operations of farming for which machines are used are diverse. For crop production they include handling of residues from previous crops; primary and secondary tillage of the soil; fertilizer distribution and application; seeding, planting, and transplanting; cultivation; pest control; harvesting; transportation; storage; premarketing processing; drainage; irrigation and erosion control; and water conservation.
All of the foregoing technological advances have been critically dependent on the availability of an abundant and economic supply of fossil fuels including diesel fuel for on-farm tractors and self-propelled machines; and natural gas, heavy fuel oil and coal for off-farm electricity generation.

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The operations of farming for which machines are used are diverse. For crop production they include handling of residues from previous crops; primary and secondary tillage of the soil; fertilizer distribution and application; seeding, planting, and transplanting; cultivation; pest control; harvesting; transportation; storage; premarketing processing; drainage; irrigation and erosion control; and water conservation.
All of the foregoing technological advances have been critically dependent on the availability of an abundant and economic supply of fossil fuels including diesel fuel for on-farm tractors and self-propelled machines; and natural gas, heavy fuel oil and coal for off-farm electricity generation.

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