On-farm extension demonstrations are one of the best participatory research and educational resources available to extension specialists and county extension staff for presentation of new technology to agricultural producers. On-farm extension demonstration programs for intensive vegetable production, of which drip irrigation is a major component, can range from a complete package [3/4-ton truck, a trailer for transporting equipment, a tractor in the 36 to 42 HP range (i.e., Ford 3910) a plastic-laying machine, a bed press pan, hillers, and drip/overhead irrigation systems] with a price tag of about $40,000 used in a multistate, statewide, or multicounty program, to a small demonstration package using a household well source with a cost of about $250. The demonstration package used will depend on the scope of the program, local conditions, and economic realities.