Northern Grow Lights Photon 180 Citizen 1825 90 CRI

Aruanda

Well-Known Member
In speaking with Robin privately, he hypothesized that it could be a fluctuation in humidity. This week there were a few days of really dry weather, hot and dry (40-50% RH). I had a lot of fluctuations yesterday as I had set my exhaust to come on intermittently. The humidity would climb then when it kicked on for 15m every half hour it would drop back down. Thankfully today the humidity is back up and I switched the exhaust to stay on. I'm still working with dialing in the climatic elements...

I will do a pH test though. Thanks everyone!
 

Aruanda

Well-Known Member
runoff is a very inaccurate way to measure soil ph............that meter combo for less than $14 is guaranteed garbage
Hey PSUAGRO, could you perhaps leave a more constructive feedback? Like, okay if you don't agree that that is an accurate way to test soil pH, great. But why not suggest a better solution instead of leaving it at that? Thanks. ;)
 

PSUAGRO.

Well-Known Member

Aruanda

Well-Known Member
So I have started preparations to mix together my soil and amendments this weekend. I wanted to draw attention to a particular substance that has been talked about in the ROLS thread, Biochar.

To just give a recap of what I am mixing together. I got slightly smaller 2gal. (roughly 8L) smart pots that are taller with a smaller diameter for better spacing. The ingredients are as follows:

25% Perlite = 10.5L
10% Vermiculite = 4.2L
30% Inert (nutrient deficient) soil medium = 12.6L
10% coconut medium = 4.2L
21.4% Vermicompost = 9L
3.6% Biochar (inoculated) = 1.5L
>1% silica
>1% calcium (shells)


I am brewing some experimental compost tea with the following:

(8L) of filtered and de-chlorinated water
(1L) of worm castings
(8mL) Kelp solution (BioBizz)
(2.75 oz.) organic unrefined brown sugar
(1.5L) Biochar
(2tbs) Stump tea mycorrhizal blend (This does contain Bacillus subtilis which they recommend only adding at the end of a compost tea brew cycle right before adding to soil or as a foliar spray. However, this blend contains many other beneficial bacterium and mycorrhizae)
(1.5tbs) Roots Organics Uprising
(6-8 drops) of ConcenTrace - Trace Mineral drops


Tomorrow I will remove the biochar and strain off the solids and mix that with the rest of the soil blend and prepare the pots (however, will not transplant at this point). I will also be diluting this (1:2) with water and give to my seedlings.

For anyone who is unfamiliar with what biochar is, it is woody biomass that has gone through the process of pyrolysis and has turned to pure carbon. It stays in this stable form of carbon for about 1000 years. It has been considered an important ingredient in the formation of 'Terra Preta,' a form of very nutrient dense black tilth soil that has been found accumulated in various places in South America. Biochar is extremely porous and has a massive surface area. One gram of the substance has the same surface area as a football field. This is useful knowledge as that is a great amount of surface for beneficial bacterium and soil organisms to colonize, adding biochar to a compost tea brew will inoculate the char.

For anyone looking for more information on the topic a good resource I've read is The Biochar Solution: Carbon Farming and Climate Change by Albert Bates (https://amzn.com/0865716773)

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The char seems to float on the top and is already producing many frothy bubbles as the air percolates up. So I dunked a micron screen bag in the tea and tried to collect a majority of it into the bag.

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Aruanda

Well-Known Member
[09/19] - 8 days after almost all germinated seeds have sprouted from soil (5 of 6) and they are pretty vigorous. Yesterday I took my AACT and diluted to 1:2 with water, added 1mL of BioBizz - BioHeaven and 1/3 tsp of Stump Tea -veg boost + more Stump Tea mycorrhizae blend and drenched all 6 seedlings. The inoculated biochar got mixed in with all my soil ingredients and after consolidating it to the transplant smart pots, they got drenched too. As it turns out, they are more like 9-10L pots so I will have to re-do the math on the ratios...

Anyway, just a few pics. I really do think my issue with the twisting of the leaves is from the erratic ups and downs of the humidity. My hydrometer says a low of 46% and a high of 86% in the past 24-48h. The exhaust now stays on all day and during the day the fluctuations aren't so great (59%-70%). I set my timer to kick in the exhaust every 15m for 15m after lights out. Hopefully I may see some more stabilization in the next 24h and get a different reading (hopefully). Some of the petioles are turning a bit purplish, but I am not too concerned for now. The brown spots on leaves are from the compost tea which I should have maybe diluted a bit more for foliar application, whoops...


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PSUAGRO.

Well-Known Member
Oh, well I mean, that is pretty much what I am doing here :wink::leaf:
Yes I see that now.......... lol

If your water is alkaline careful with adding biochar

Also I cut allot out of my organic runs for the better imo........... got rid of my act/aact/sst and all the unnecessary amendments and just use plant based/ vegan ferts now following multipass micronized method...... simple and effective...... but I'm lazy
 

Aruanda

Well-Known Member
Also I cut allot out of my organic runs for the better imo........... got rid of my act/aact/sst and all the unnecessary amendments and just use plant based/ vegan ferts now following multipass micronized method...... simple and effective...... but I'm lazy
I'm curious to know why you believe that to be for the better?
 
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