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aruzinsky · 03-11-2022, 02:32 PM

I was inspired to test coir by this paper:

https://digitalcommons.usu.edu/cpl_hydroponics/1/

I planted corn and tomato seed in the following peat moss - perlite mix:

1. https://www.sungro.com/retail-product/sunshine-mix-4/

and 50% mix with perlite of the following 3 brands of coir:

2. https://www.amazon.com/Coco-Bliss-Pr.../dp/B06W9F7XDY

3. https://www.amazon.com/gp/product/B0...asin_title_s00

4. https://www.homedepot.com/p/Vermont-...11LB/300679904

All plants were treated the same and fertilized with a complete hydroponic fertilizer. There wasn't much difference for the tomato but look at the corn, left to right, 1, 2, 3, 4, respectively:

You can see one tomato plant because the stem took root in a pot of corn, ha, ha! I suspect that corn is sensitive to sodium toxicity. My point is you are taking a chance using coir by not knowing exactly which plants will be unfavorably influenced. You should perform a test like this for every type of plant that you pot in coir. Or, just use peat moss based mixes.

03-11-2022, 02:32 PM	#1 (permalink)
aruzinsky Location: IL Find me on the map! Zone: 6a (10 miles east of 5b) Name: Steve Join Date: Feb 2017 Posts: 499 BananaBucks : 170,526 Feedback: 0 / 0% Said "Thanks" 15 Times Was Thanked 788 Times in 317 Posts Said "Welcome to Bananas" 5 Times	Test Your Coir with Corn Seeds I was inspired to test coir by this paper: https://digitalcommons.usu.edu/cpl_hydroponics/1/ I planted corn and tomato seed in the following peat moss - perlite mix: 1. https://www.sungro.com/retail-product/sunshine-mix-4/ and 50% mix with perlite of the following 3 brands of coir: 2. https://www.amazon.com/Coco-Bliss-Pr.../dp/B06W9F7XDY 3. https://www.amazon.com/gp/product/B0...asin_title_s00 4. https://www.homedepot.com/p/Vermont-...11LB/300679904 All plants were treated the same and fertilized with a complete hydroponic fertilizer. There wasn't much difference for the tomato but look at the corn, left to right, 1, 2, 3, 4, respectively: You can see one tomato plant because the stem took root in a pot of corn, ha, ha! I suspect that corn is sensitive to sodium toxicity. My point is you are taking a chance using coir by not knowing exactly which plants will be unfavorably influenced. You should perform a test like this for every type of plant that you pot in coir. Or, just use peat moss based mixes. Last edited by aruzinsky : 03-11-2022 at 02:36 PM.