Understanding Rolling Benches

According to recent Google searches, rolling benches are highly efficient for the agricultural industry, particularly in greenhouses, due to their ability to optimize space and improve watering systems.

Save 50-90% of Water

Rolling benches can save up to 90% of water when compared to traditional watering methods, owing to their fully recirculating system. If you are looking for more details, kindly visit ebb and flow bench.

This system also makes it easier to control relative humidity in the growing environment, keeping plant foliage and floors under benches always dry.

Additionally, crops are watered very evenly, eliminating the need for constant touch-up watering on the edges.

Chapter 14

Greenhouse Production Systems

Substrate Culture

Ebb-and-Flow System

Ebb-and-flow benches, also known as ebb-and-flood benches, combine an elevated benching system with a closed subirrigation system. They facilitate the individual watering and fertigation of various plants at different spacings without the need for individual feed lines to each plant, or overhead watering. Commonly used in the floriculture industry for seedlings and potted plant production, these systems recirculate nutrient solutions while adjusting EC, pH, and often temperature levels at the main nutrient reservoir.

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Advantages and Disadvantages

The ebb-and-flow system is one of the simplest hydroponic systems to set up and use, but it still takes some experience and effort to master. The system is generally cost-effective, as it does not require high-tech or expensive components. It can also support various types of growing media, such as expanded clay pellets, perlite, sphagnum moss, and rockwool. The main drawback is the high relative humidity that can develop within the plant canopy.

Benches

Ebb-and-flow benches can be either stationary or rolling, like Dutch trays. Both options are effective, with the choice largely depending on personal preference and automation needs. The primary feature of an ebb-and-flow bench is the tray that constitutes the bench surface, typically made of hardened plastic or aluminum. Tray dimensions vary to meet specific bench size requirements.

Irrigation Method

The tray includes an inlet and outlet at one end. Fertilizer solution or water is pumped into the tray, flooding the deepest channels first before moving to higher levels. In a production setting, plants are placed on the tray, allowing the solution to rise around their roots and substrate through capillary action.

Dutch Trays

Dutch trays are set on steel tracks that not only support the trays but allow them to roll thanks to small wheel-like structures underneath. This design maximizes space efficiency and facilitates plant transportation within the greenhouse facility. Trays can be rolled along the tracks to major aisles or walkways for easy relocation.

Click on the following topics for more information on greenhouse production systems.

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