pH tests for hydroponic leafy greens

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Submitted by Elsewhere on 2020-Dec-17 Thu 14:45
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500Foods shared this story from HD.com.

Last year Van der Knaap Groep performed two different trials with hydroponic lettuce. Karel de Bruijn: “We used mineral nutrients in one pond and organic in the other. Last year's trial was successful. The filtration system did its job. The membranes ensure the bacteria can't pass through. That's why our…

leafy greens

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