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Featured Contributors
VOLUME 23 – NUMBER 6 December 2021 / January 2022
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Grubbycup has been an avid indoor gardener for more than 20 years . His articles were first published in the United Kingdom , and since then his gardening advice has been published in French , Spanish , Italian , Polish , Czechoslovakian and German . Follow his gardening adventures at his website grubbycup . com |
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Dr . Lynette Morgan holds a B . Hort . Tech . degree and a PhD in hydroponic greenhouse production from Massey University , New Zealand . Lynette is a partner with Suntec International Hydroponic Consultants and has authored several hydroponic technical books . Visit suntec . co . nz for more information . |
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Contributors +
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Chris Bond Kent Gruetzmacher Eric Hopper Philip McIntosh Rich Hamilton
RECIRCULATING HYDROPONICS
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Hydroponics is an inclusive term for many different growing methods which involve delivering a nutrient solution to a soil-less media . Recirculating hydroponics ( a . k . a . closed-loop hydroponics ) setups are the most environmentally friendly growing options due to the continuously recycled water and nutrients . The water conservation benefits of recirculating hydroponics systems are particularly attractive in dry climates .
Water conserving growing methods are one of the central benefits of controlled environment agriculture ( CEA ) and hydroponics . The alternative method , drainto-waste ( a . k . a . feed-to-waste ), delivers a nutrient solution to the medium and the excess solution is allowed to drain away to disposal . Drain-to-waste systems have features which make them easier to operate but the water conservation benefits of recirculation systems often outweigh the benefits of drain-to-waste .
Deep water culture ( DWC ), ebb and flood , nutrient film technique ( NFT ), the Dutch bucket system , and even aeroponics , are all forms of recirculating hydroponics . Drip systems can be utilized with both recirculating systems and drain-to-waste systems .
Check out Kent Gruetzmacher ' s article on page 42 for more information .
12 Maximum Yield