recycling excess soil

Chad Schroter
Mon, 08 Oct 2012 10:38:56 PDT
I built something like this:…

It's basically an insulated cardboard box with a clear lid and reflective sides.  I can put 2 gallon pots in at a time, so it's not for large amounts; I suppose a larger version would work just as well.  Temps get well over 140...


-----Original Message-----
From: [] On Behalf Of Rodney Barton
Sent: Monday, October 08, 2012 6:05 AM
To: Pacific Bulb Society
Subject: Re: [pbs] recycling excess soil

Clever set up!

I solarize 20-30 gal batches by spreading it on plastic or metal sheeting, wetting and covering with clear plastic. I leave the plastic on until it starts to degrade which is usually a few weeks. I've never measured the temp but it gets too hot to touch. I've also solarized by putting plastic down on the mix in large pots (20gal+). I know the heat is not getting very deep but assuming the pathogens/weeds would be in the upper part of the mix.


in North Central Texas, USA

Gastil said:

I am experimenting with solarizing soil.


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