An example was the mass-produced and low-cost Fordson tractor introduced by Henry Ford in 1916. Soon after the Irish inventor and agricultural engineer, Harry Ferguson, recognized the utility of a greater integration of the tractor with the implements and machines (plows, seeders, agrochemical applicators, harvesters, feeders), which were pulled behind it by a simple drawbar hitch.
The harvesting of delicate fruits (strawberries, raspberries, grapes, plums) and vegetables (tomatoes, mushrooms, lettuce) for the fresh market has not been successfully completed despite a substantial investment in crop breeding and mechanization research. Machines that can harvest such delicate biological tissues, generally inflict too much damage on a product destined for the fresh market but have been successful with product destined for processing. Selective harvesting is another substantial challenge facing researchers in the fruit and vegetable sector in particular.