Maximum Yield Australia/New Zealand March/April 2021 | Page 37

the
MOST TRUSTED CO2 MONITORING
name in
DAY / NIGHT CO2 MONITOR AND GROW CONTROLLER
• Accurate CO2 Generator Control
• Photo sensor turns off CO2 at Night
• Customizable low and high set points
• Used in agriculture facilities , worldwide
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get connected to yourgarden .

MOVEABLE BENCH / CHANNEL SYSTEMS
One design for single-plane systems , used in commercial greenhouses — largely for lettuce and other leafy greens — is the ‘ moveable bench ’ or ‘ moveable channel ’ system . This involves large benches of NFT channels that can slide along rails on which they are supported . The main advantage of this is it reduces the need for numerous access pathways within the crop as occurs with fixed-channel systems . The NFT channels , that start off planted with small seedlings , are initially placed directly side by side and as the plants develop and require a larger spacing , the channels are gradually slid further and further apart to give each plant more room to develop . Mature crops are then harvested from one end of the system , while newly planted channels are introduced at the opposite end . Plant spacing increases as each channel moves along the production system . With NFT systems , the nutrient-delivery emitters are designed to be flexible to accommodate the change in gully spacing with plant growth . Moveable channel systems allow more plants to be produced per unit area than fixed bench systems . Such simple systems can be adapted to smaller growing areas and indoor gardens , where the moveable channels are adjusted by hand as plants increase in size , while still maintaining a single horizontal plane which maximises overhead light interception .
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