Supersoil lab testing with surprising results

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ntrlslctn

Member
I've been recycling my supersoil I started about 5 years ago using subcool's recipe. The first year was great but in subsequent years I haven't been able to replicate the nice dark green color of the plants, which I thought was because of inadequate nutrients. Buds could be denser and better. Using home DIY test kits with tablets would show deficiencies in the soil after the season, so I would reammend at about 50% strength, but I gradually bumped up to nearly original amounts when reammending over the years and started adding compost. This year I sent it to a lab for testing, and the results showed my nutrient levels were high, with Phosphorous about 10x what it should be. I now believe my subpar results in recent years have been because of the excessive phos causing lockout of other micronutrients. The bad news is I added more nutrients to my soil this spring before I got my results back, so they're even higher now. I'm now waiting on new soil testing results, and I plan on cutting it down with coco, sand and perlite but I am looking for any other input. It seems I will need a good method of foliar feeding to bypass the soil issues and get some micronutrients to my plants. If anyone else had addressed similar problems please let me know.
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CrunchBerries

CrunchBerries

Well-Known Member
ntrlslctn said:
I've been recycling my supersoil I started about 5 years ago using subcool's recipe. The first year was great but in subsequent years I haven't been able to replicate the nice dark green color of the plants, which I thought was because of inadequate nutrients. Buds could be denser and better. Using home DIY test kits with tablets would show deficiencies in the soil after the season, so I would reammend at about 50% strength, but I gradually bumped up to nearly original amounts when reammending over the years and started adding compost. This year I sent it to a lab for testing, and the results showed my nutrient levels were high, with Phosphorous about 10x what it should be. I now believe my subpar results in recent years have been because of the excessive phos causing lockout of other micronutrients. The bad news is I added more nutrients to my soil this spring before I got my results back, so they're even higher now. I'm now waiting on new soil testing results, and I plan on cutting it down with coco, sand and perlite but I am looking for any other input. It seems I will need a good method of foliar feeding to bypass the soil issues and get some micronutrients to my plants. If anyone else had addressed similar problems please let me know.
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You could try TM-7 as a Foliar for micronutrients
 
W

waktoo

Well-Known Member
ntrlslctn said:
I've been recycling my supersoil I started about 5 years ago using subcool's recipe. The first year was great but in subsequent years I haven't been able to replicate the nice dark green color of the plants, which I thought was because of inadequate nutrients. Buds could be denser and better. Using home DIY test kits with tablets would show deficiencies in the soil after the season, so I would reammend at about 50% strength, but I gradually bumped up to nearly original amounts when reammending over the years and started adding compost. This year I sent it to a lab for testing, and the results showed my nutrient levels were high, with Phosphorous about 10x what it should be. I now believe my subpar results in recent years have been because of the excessive phos causing lockout of other micronutrients. The bad news is I added more nutrients to my soil this spring before I got my results back, so they're even higher now. I'm now waiting on new soil testing results, and I plan on cutting it down with coco, sand and perlite but I am looking for any other input. It seems I will need a good method of foliar feeding to bypass the soil issues and get some micronutrients to my plants. If anyone else had addressed similar problems please let me know.
View attachment 4911147
Click to expand...
This is a "standard soil test". This test is meant for field soils, not soilless container media. The results are inaccurate and should not be used to make determinations relevant to the chemical status of your soilless container mix. You want a "saturated media extract" test, preferably one offered by a testing facility utilizing DTPA extraction. I know for a fact that Penn State University offers such testing for out of state residents (40$). I called and asked. Logan Labs, for instance, does not offer DTPA extraction with their SME test. I know this because I called and asked.

Details relevant to soil type, testing methods, and what the results offer are provided in the link below...

 
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FredH

Well-Known Member
Pretty interesting. I typically reamend with full NPK and lime. I only use the soil twice as after that I use it as worm bedding. What are you using for Prosperous?
 
Bignutes

Bignutes

Well-Known Member
Cut it, I’d probably start over tbh, use flour (oat or wheat) and wheat bran, alfalfa, epsom and you won’t need to “cook” it
 
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