Nutrients
Which aquaponics setup grows better lettuce?
In a Universidad Autónoma Chapingo greenhouse trial, lettuce in a recirculating aquaponics system yielded 10.93 kg per square metre, against 0.37 kg in a biofloc system.
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Research news
New studies, trials and growing technology from universities and research institutes, summarised in plain English, with the trial details and a link to the original study.

Nutrients
In a Universidad Autónoma Chapingo greenhouse trial, lettuce in a recirculating aquaponics system yielded 10.93 kg per square metre, against 0.37 kg in a biofloc system.

Nutrients
University of Hohenheim researchers found that humic substances and chitosan raised young maize growth by 21 to 34% and phosphorus uptake by 23 to 35% when paired with struvite or a soluble phosphate, but gave no detectable gain with a treated sewage sludge ash within six weeks.