Sending my compost and worm castings to a lab...

MustangStudFarm

Well-Known Member
I almost waited until I got the results back before I posted, but I decided to let people speculate a little. I am waiting for my lights to come on right now, so bear with me on the pics. I have a reoccurring problem with my soil, I get the yellow fade way too soon like week 4-5. My seedlings and clones LOVE the soil, so I imagine that I am not too far off. I had a really great harvest a couple of cycles ago and it has been going down hill since. I screened a bunch of wood chips out of my soil and it helped but didnt fix it. I am using recycled soil that has a mix of "build a soil" nutrient craft mix and "Bio-Live" from Down to Earth. I have not added any amendments because this would only be the 1st-2nd run with the soil, but I have been adding rabbit manure EWC in between cycles.

Compost
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Finished rabbit manure worm bedding, I dont know what to call this yet? Worm castings with a manure base???
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Here is some of the crap that I had to screen from my recycled soil. There was a lot of it, like 100gallons!
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Chronikool

Well-Known Member
I almost waited until I got the results back before I posted, but I decided to let people speculate a little. I am waiting for my lights to come on right now, so bear with me on the pics. I have a reoccurring problem with my soil, I get the yellow fade way too soon like week 4-5. My seedlings and clones LOVE the soil, so I imagine that I am not too far off. I had a really great harvest a couple of cycles ago and it has been going down hill since. I screened a bunch of wood chips out of my soil and it helped but didnt fix it. I am using recycled soil that has a mix of "build a soil" nutrient craft mix and "Bio-Live" from Down to Earth. I have not added any amendments because this would only be the 1st-2nd run with the soil, but I have been adding rabbit manure EWC in between cycles.

Compost
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Finished rabbit manure worm bedding, I dont know what to call this yet? Worm castings with a manure base???
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Here is some of the crap that I had to screen from my recycled soil. There was a lot of it, like 100gallons!
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Suggestions/causes: Buried woodchips stealing your nitrogen. Veg plants just deleting all your nitrogen. (quick growth)

How is your aeration amendment...? Maybe a bit puggy/settled after a couple of runs?
 

hillbill

Well-Known Member
Pretty much what I do but I use Black Kow, Cotton Burr Compost and worm castings with a Neal and mineral mix I make. I have had lizards and centipedes hatch which keeps some stuff outdoors and makes for a much happier home life.

I do store used mix and mix in compost and castings for reuse in and out. Getting away from bat guano for the first time in years........Fish Bone Meal 6-20-0.
 

MustangStudFarm

Well-Known Member
Suggestions/causes: Buried woodchips stealing your nitrogen. Veg plants just deleting all your nitrogen. (quick growth)
I have them in 8gal pots, I doubt that they are getting depleted. I also thought that it was a N def, but @greasemonkeymann thought that it was something else. I have to agree with him because I topdressed with more rabbit manure and everything got worse, faded to yellow faster afterwards!!! I am probably dealing with a PH problem or something?

Do you mulch your plants with straw or anything to up your carbon ratio?
I compost leaves and rabbit bedding. The bedding is mostly alfalfa hay or straw usually and it gets soaked with urine, pretty stinky. I am using Biochar but I screened a lot of it out and I think that I know how to do it better next time! Anyways, this is all just speculation until I get the results! I was too embarrassed about my pics to post them last night. I will post them for educational purposes... It is the worst looking run that I have had in a while!!! Stunted and faded...
 

Rasta Roy

Well-Known Member
I have them in 8gal pots, I doubt that they are getting depleted. I also thought that it was a N def, but @greasemonkeymann thought that it was something else. I have to agree with him because I topdressed with more rabbit manure and everything got worse, faded to yellow faster afterwards!!! I am probably dealing with a PH problem or something?


I compost leaves and rabbit bedding. The bedding is mostly alfalfa hay or straw usually and it gets soaked with urine, pretty stinky. I am using Biochar but I screened a lot of it out and I think that I know how to do it better next time! Anyways, this is all just speculation until I get the results! I was too embarrassed about my pics to post them last night. I will post them for educational purposes... It is the worst looking run that I have had in a while!!! Stunted and faded...
No need to be embarrassed, failure is the best way to learn! We've all fucked up before, it's how you learn not to do it again!
 

greasemonkeymann

Well-Known Member
I have them in 8gal pots, I doubt that they are getting depleted. I also thought that it was a N def, but @greasemonkeymann thought that it was something else. I have to agree with him because I topdressed with more rabbit manure and everything got worse, faded to yellow faster afterwards!!! I am probably dealing with a PH problem or something?


I compost leaves and rabbit bedding. The bedding is mostly alfalfa hay or straw usually and it gets soaked with urine, pretty stinky. I am using Biochar but I screened a lot of it out and I think that I know how to do it better next time! Anyways, this is all just speculation until I get the results! I was too embarrassed about my pics to post them last night. I will post them for educational purposes... It is the worst looking run that I have had in a while!!! Stunted and faded...
We're all family here man (for the most part), so don't sweat the pics, hell I've posted some fugly mite-pics so no need to be shy.
So I was thinking about it, and in an organic heavy base it can retain too much water, I know you mentioned that they were drying out too, but the top can dry, whilst the bottom can still be dense or damp.
I really think that it's that, not enough aeration or drainage, but without pics or being there it's SO hard to tell for sure.

Also when were they transplanted to the 8 gals?
if it was too soon and the roots zone isn't super established the soil can retain too much moisture and then the roots don't like the anaerobic conditions, while the soil is remaining wet, so then you have a condition that perpetuates itself. Roots don't grow cuz it's too anaerobic and damp, and the dampness isn't helped because the roots aren't sucking up the water.
I've done it personally, and even with NOTHING wrong with your soil it can happen.
Wet soil will turn acidic, and wet soil also is anaerobic, all those essentially prune your roots as they grow.

For example, I wouldn't trans into a 8 gal container with anything smaller than an established 1-2 gallon container, some growers like to put freshly rooted clones into big containers, in my experience cannabis doesn't like that as much, too easy for the container to retain moisture for too long, which creates the aforementioned maladies.

In my experience simple nitrogen defs usually manifest themselves as a gradual fading from the "normal" green to lighter shades, at first growth isn't slowed too much, but eventually it will be.
but it takes time.
even outside they'll keep going until it gets really bad.

But even a lightly amended, or re-used 8 gal container could easily support a 5 foot plant.
no prob

I am eager to see the results of the test!
cool shit
 

MustangStudFarm

Well-Known Member
Here is the soil that I have been using. I should have paid closer attention to this before, I used it for for 2-3 years and always have the same problems! I have even recycled it! It has been a while since I used a new bag and most of it should be recycled 2-3x now.

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Metro-Mix 902 (formerly Metro-Mix 702) The most popular Metro-Mix formulation, similar to Metro-Mix 350, but with additional aggregate for drainage is a great choice for a wide range of crop types and container styles. Ingredients: • Bark** • Canadian Sphagnum peat moss • Vermiculite and coarse perlite • Starter nutrient charge (with Gypsum) and slow release nitrogen • Dolomitic limestone and our long-lasting wetting agent
 

MustangStudFarm

Well-Known Member
I wouldn't trans into a 8 gal container with anything smaller than an established 1-2 gallon container, some growers like to put freshly rooted clones into big containers, in my experience cannabis doesn't like that as much, too easy for the container to retain moisture for too long, which creates the aforementioned maladies.
Interesting!!!

I was at a loss of words. Give me a min lol
 

greasemonkeymann

Well-Known Member
Here is the soil that I have been using. I should have paid closer attention to this before, I used it for for 2-3 years and always have the same problems! I have even recycled it! It has been a while since I used a new bag and most of it should be recycled 2-3x now.

View attachment 3831576
Metro-Mix 902 (formerly Metro-Mix 702) The most popular Metro-Mix formulation, similar to Metro-Mix 350, but with additional aggregate for drainage is a great choice for a wide range of crop types and container styles. Ingredients: • Bark** • Canadian Sphagnum peat moss • Vermiculite and coarse perlite • Starter nutrient charge (with Gypsum) and slow release nitrogen • Dolomitic limestone and our long-lasting wetting agent
Hmmm....
did you do anything to control the ph?
with the d-lime it's probably gone by now, and after time peat does drive the ph down
that looks similar to pro-mix..
don't like that the first ingredient is bark... another thing to drive ph down over time..
So any crab meal, oyster flour?
d-lime?
I'd wager to say that rabbit manure/urine bedding is probably acidic, but if there is redworms all over the place it can't be too bad.
 

greasemonkeymann

Well-Known Member
I used crustacean meal, kelp, and basalt along with "build a soil" the first round, that was ready in April. I have been using the crustacean meal when I recycle and the worm bin gets lots of egg shells.
hmmm... all those are probably better for keeping a ph constant rather than correcting it..
d-lime or oyster flour may work better?
either way this is all guesswork until you get your test back

My theory is lack of aeration and possible low ph. The latter of the two possibly being cause from the former.
If your clones and seedlings love the soil i'm really thinking it may just be simply not aerated enough media
 

MustangStudFarm

Well-Known Member
If your clones and seedlings love the soil i'm really thinking it may just be simply not aerated enough media
I think that you might be on to something with the plants being too small for the containers. Now that it has cooled off, I hope that drying out will not be such an issue.

Less O2, sponge holding water?
Right... I think that the top dries out and the bottom stays wet!
 

greasemonkeymann

Well-Known Member
I think that you might be on to something with the plants being too small for the containers. Now that it has cooled off, I hope that drying out will not be such an issue.


Right... I think that the top dries out and the bottom stays wet!
Booya!
i bet that's the prob man, I've had the same thing happen to me about three or four times, same soil mix, same containers, same strains, but NOT established enough aeration and root system.
Problem with that too is that the bottom retains a LOT of the soluble nutrients, so that creates acidity as well.
three things here all causing acidity.
Over time I keep adding aeration at a 1/1 ratio with compost or castings
I LOVE vermiculite, pumice and volcanic rock.
Bio char is great too but you do want to go light on it, no more than 10% of the mix.
hell I have perlite, pumice, volcanic rock, rotted tree chunks, vermiculite, coco wool, and biochar as my aeration.
over the whole mix it's probably around 40% of the mix
I prefer water holding aeration (vermiculite, pumice, etc) over the normal displacement aeration (like perlite)
 
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