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permaculture - Re: [permaculture] pc aquaponics

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  • From: "Linda Shewan" <linda_shewan@yahoo.com.au>
  • To: "'permaculture'" <permaculture@lists.ibiblio.org>
  • Subject: Re: [permaculture] pc aquaponics
  • Date: Mon, 8 Oct 2012 13:29:53 +1100

Does anyone know if studies have been done on the level of nitrates in
aquaponic leafy vegetables as opposed to well grown (not heavily manured)
soil grown leaf vegetables?

I remember reading a biodynamic article about why the addition of animal
manures can be harmful in terms of levels of nitrates absorbed by the
greens, and it would seem this would be exacerbated in an aquaponics setup.

Thanks, Linda







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