Abstract: A cultivation floor system has a floor on which plant containers are to be placed. The system includes a watertight basin and a water-permeable structure in the basin, which structure has a permeable top cloth which forms the top side of the floor on which plant containers are placed. The structure includes one or more water-retaining layers. A watering installation supplies water so that water is available for the plants in the plant containers. A perforated film is placed between the permeable top cloth on the one hand and the one or more water-retaining layers on the other hand, which perforated film is made of impermeable film material which is provided with distributed perforations in such a manner that the film reduces the free evaporation surface for water from the one or more water-retaining layers.

Abstract: A cultivation floor system with a floor includes a watertight basin with a watertight groundsheet, a water-permeable structure in the basin, and a permeable top sheet which lies substantially horizontally over the water-permeable structure and forms the top side of the floor on which plant containers are optionally placed. The basin has a water-barrier structure which protrudes above the floor and delimits the compartment which is present on the floor. The water-barrier structure includes a horizontal beam with a top side, a water-barrier profile with a bottom side, and fastening means which fasten the water-barrier profile to the horizontal beam. The top side of the beam is substantially level with the top side of the floor formed by the permeable top sheet. The bottom side of the water-barrier profile is pulled onto the top side of the horizontal beam while clamping the watertight groundsheet and the permeable top sheet.

Abstract: A belt conveyor system for the transporting of plant containers over a cultivation floor including an endless belt on which the plant containers are adapted to be placed, a mobile unit, provided with a buffer which is adapted to buffer the endless belt, and a drive unit to place the endless belt in operation, a reversal device provided with a reversal member, which reversal device is adapted to be placed on the field of the cultivation floor at a distance from the mobile unit; and a temporarily arranged belt guide which is adapted to be placed between the mobile unit and the reversal device on the field of the cultivation floor; wherein the reversal device turns the belt, and wherein the belt runs between the mobile unit and the reversal device across the belt guide.