Commodities appropriate for barter, or for small trade; small commodities; esp., in the United States, garden vegetables raised for the market. (Colloq.)
3.
The practice of paying wages in goods instead of money; called also truck system.
Garden truck, vegetables raised for market. (Colloq.) (U. S.)
Truck farming, raising vegetables for market: market gardening. (Colloq. U. S.)
... morrow, and his African training had not taught him to borrow trouble. Thus neither Africa nor America had trained the Negro to independent, continuous labor apart from the eye of the overseer. The requirements as to skill were low. The average man learned little of the mysteries of fruit growing, truck farming and all the economies ... — The Negro Farmer • Carl Kelsey