different types of farming systems and structures: forcing: vegetables are produced out of their normal season of outdoor production under forcing structures that admit light and induce favorable environmental conditions for plant growth. greenhouses, cold frames and hot beds are common structures. home gardening provides vegetables exclusively for family use. the most suitable vegetables for home gardening are Bean, cabbage, carrot, leek, lettuce, onion, parsley, pea, pepper, radish, spinach, and tomato are desirable home garden crops. (britannica