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Old January 26, 2022   #6
RayR's Avatar
Join Date: Jun 2010
Location: Cheektowaga, NY
Posts: 2,463

Originally Posted by Milan HP View Post
Thank you a million, Ray.
That's all I need. Actually, I have bought some and the size of the particles is about 3 - 5 mm. My mix is home-made, a mixture of clay soil from my garden and two different commercial seed mixes that don't hold water very well. I'll probably put some thirty to forty grains in each pot and see what happens. And I am not really heavy on ammonium nitrogen.
Milan HP

It'll probably work well to improve water retention in your commercial mixes.
I would guess your home-made mix with the clay doesn't have a problem with water retention and clays naturally have a higher CEC for holding on to nutrient cations which minimizes leaching..

These N. American zeolite mining companies has some good information on uses and benefits as a soil amendment.
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