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[APD] Re: Agar and speaking of hair

Tom Barr wrote:

.....I want something that I can bind NH4 strong enough not to diffuse out at _all_, yet roots are able access it (say with growth) with a fair amount of ease. Something that would not be oxidized into NO3 by bacteria either......

What about hair? You can get bags of it at a barber shop. It is 100% protein, and is resistant to bacterial breakdown, but not entirely. Suppose you had a soil-hair mix with plants rooted in it. Would it not be possible that bacteria could slowly decompose the keratin and release NH4 that could be taken up by the roots. It is worth a try!

Paul Krombholz in 70 degree central Mississippi
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