[1] : The Collaborative International Dictionary of English v.0.48

truck \truck\, n. cf. f. troc.
   1. exchange of commodities; barter. --hakluyt.
      1913 webster

   2. commodities appropriate for barter, or for small trade;
      small commodities; esp., in the united states, garden
      vegetables raised for the market. colloq.
      1913 webster

   3. the practice of paying wages in goods instead of money; --
      called also truck system.
      1913 webster

   garden truck, vegetables raised for market. colloq. u.
      s.

   truck farming, raising vegetables for market: market
      gardening. colloq. u. s.
      1913 webster
see also:
truck system garden truck truck farming 

[2] : WordNet (r) 2.0

truck farming
     n : growing vegetables for the market

[3] : Moby Thesaurus II by Grady Ward, 1.0

29 moby thesaurus words for "truck farming":
   agrarianism, agricultural geology, agriculture, agrology,
   agronomics, agronomy, contour farming, cultivation, culture,
   dirt farming, dry farming, dryland farming, farm economy, farming,
   fruit farming, geoponics, grain farming, husbandry, hydroponics,
   intensive farming, mixed farming, rural economy, sharecropping,
   strip farming, subsistence farming, tank farming, thremmatology,
   tillage, tilth

Truck Farming >> T Words
Truck Farming, definition of term: Truck Farming
truck+farming_pag1.html

Farming >> F Words
Farming, definition of term: Farming
farming_pag1.html

Truck >> T Words
Truck, definition of term: Truck
truck_pag1.html

Truck Stop >> T Words
Truck Stop, definition of term: Truck Stop
truck+stop_pag1.html

Truck Garden >> T Words
Truck Garden, definition of term: Truck Garden
truck+garden_pag1.html

Truck Farm >> T Words
Truck Farm, definition of term: Truck Farm
truck+farm_pag1.html

Truck Driver >> T Words
Truck Driver, definition of term: Truck Driver
truck+driver_pag1.html

Dairy Farming >> D Words
Dairy Farming, definition of term: Dairy Farming
dairy+farming_pag1.html

Dump Truck >> D Words
Dump Truck, definition of term: Dump Truck
dump+truck_pag1.html

Fire Truck >> F Words
Fire Truck, definition of term: Fire Truck
fire+truck_pag1.html