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Beds and Benches

Beds and Benches. Mindy Moore HORT 6050. Beds for Cut Flowers. Raised and Ground Beds The beds can be level with the ground or they can be elevated and have side walls. The beds are filled with soil or artificial substrates in which the plants are directly grown. Beds are also common

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Beds and Benches

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  1. Beds and Benches Mindy Moore HORT 6050

  2. Beds for Cut Flowers • Raised and Ground Beds • The beds can be level with the ground or they can be elevated and have side walls. • The beds are filled with soil or artificial substrates in which the plants are directly grown. • Beds are also common in vegetable production.

  3. Types of Benches for Potted Crops • Raised benches • Ebb and flow tables • Trough systems • Flood floor systems

  4. Raised Benches • Description: • Height: 32 to 36 inches • Width: 3 ft (near a wall) to 6 ft (if both sides are accessible) • No sides and floor of bench is open • Materials: • Spruce or redwood lath • Welded wire fabric or expanded metal • UV-resistant polypropylene tops • Two types: • Stationary and Moveable

  5. Wire mesh Expanded metal Wood UV protected polypropylene tops Raised Benches

  6. Stationary Moveable or Rolling Raised Benches

  7. Ebb and Flow Tables • Description: • A system in which the bench top is made of shallow plastic. • The bench is flooded to water and fertilize the plants. • Depth of water is about an inch. • Length of time varies between 5 to 20 minutes. • The water that is not taken up by the plants is returned to a storage tank.

  8. Ebb and Flow Tables • Other Information: • Versatile • 80 to 90% space efficient. • Costs about $4.50 to $7.00 per ft2. • A large portion of the cost is the plastic trays.

  9. Example of a system that is on the market Parts of an ebb and flow system Ebb and Flow Tables

  10. Ebb and Flow Tables

  11. Trough Systems • Description: • A system made of separate troughs that house the pots and a delivery pipe at the “high” end of the troughs that trickles solution down the troughs. • As with the ebb and flow tables, the water that is not taken up by the plants is returned to a storage tank.

  12. Trough Systems • Other Information: • Not as versatile as the ebb and flow tables because the width of the troughs restricts the pot sizes. • Better air movement than with ebb and flow tables. • 70 to 80% space efficient. • Costs about $3.00 to $5.00 per ft2.

  13. Trough Systems

  14. Flood Floor Systems • Description: • A system in which the entire greenhouse is covered with a concrete floor. • The floor must be carefully designed to allow water to enter and leave the floor via the delivery and return pipes. • The floor is flooded when the plants are to be watered and fertilized. • Similar to the ebb and flow system. • Same flooding level and time. • Same pump and filtration system.

  15. Flood Floor Systems • Other Information: • Versatile • 85 to 95% space efficient. • Costs about $4.50 to $5.50 per ft2. • Labor intensive because of the plants being grown on the floor.

  16. Neoprene strip water barriers Pneumatic water valves Reservoir & pump pit, with filter and control panel Flood Floor Systems

  17. Flood Floor Systems

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