Can someone help me understand organic availability…

Hello all, so I’ve had quite a few grows using buffered coco amended w/ dry organics. I’ve been very lucky with the results but I’d like to gain a little better understanding of the specific products I’m using. The success might be because of something I’m using or despite of it.
Anyway, I amend my coco w/ a dry 4-4-4 fert (for veg), a 2-8-4 (flower), myco, and EWC……those have been a constant base. I mix in a little of a few others and top dress with them also.
My questions are specifically about:
1. Bone meal (3-15-0)...I know it’s a great source of phosphorus but HOW QUICKLY IS IT AVAILABLE ? And HOW LONG DOES IT LAST?
2. Langebienite (0-0-22)….I know it is soluble and the benefits it provides, but what about AVAILABILITY & DURATION?? I should note that I crush it into a very fine powder, which causes it to dissolve faster.
I had been told that langebienite takes 6 weeks or so to break down and become available, but I’m thinking that may only be the case when it’s mixed into the medium in the larger pieces…..if crushed into a powder I’d think it would act faster…??
3. Gypsum…..probably 1/3 of the plants I’ve grown have required a small amount of cal mag.
I bought some gypsum powder recently and thought it could be the organic source for calcium. I added 1 tablespoon per gal of medium when I prepared my initial mix.
Same questions here…..how quick and how long??
It’s interesting that my current grow, which is 3 clones, all different strains, was the first time I’ve tried gypsum powder. Early/mid veg one of the 3 plants showed a moderate magnesium def.
I didn’t know if it might have been caused by the presence of the gypsum, perhaps it (along with my tap water of 144ppm) was too much calcium which locked out mag….
I have a foliar dose of Epsom and a small dose of cal mag (2ml/gal) and the problem seemed to go away, although that particular plant just seems leggy…..but it could just be the strain (fruity pebbles OG)….
Any help or guidance here is really appreciated….
The pic was yesterday and I flipped them to 12/12 about 5 days ago. I hope they don’t stretch too much as my 2.5’ x 6’ grow space is wall to wall.
Thanks again folks

The bone meal should already be in your 2-8-4, extra won't hurt though. The langbeinite doesn't need to be crushed, try cooking (or letting your mix sit in pots with no plants for a week or 2) this will help everything become available right when you plop the ladies in. Same with the rock dust. I use azomite, but only add it every other grow.

Different strains have different needs, but if your soil is prepared ahead of time and cooked you should notice those problems disappear for the next run.

Also try adding some molasses to feed the little guys that break down all that crap for you. Just 2 tbsp per 5gallon does it every other watering or once a week depending on your schedule, which I'm sure is often since you're in coco

Bullmark said:

Hello all, so I’ve had quite a few grows using buffered coco amended w/ dry organics. I’ve been very lucky with the results but I’d like to gain a little better understanding of the specific products I’m using. The success might be because of something I’m using or despite of it.
Anyway, I amend my coco w/ a dry 4-4-4 fert (for veg), a 2-8-4 (flower), myco, and EWC……those have been a constant base. I mix in a little of a few others and top dress with them also.
My questions are specifically about:
1. Bone meal (3-15-0)...I know it’s a great source of phosphorus but HOW QUICKLY IS IT AVAILABLE ? And HOW LONG DOES IT LAST?
2. Langebienite (0-0-22)….I know it is soluble and the benefits it provides, but what about AVAILABILITY & DURATION?? I should note that I crush it into a very fine powder, which causes it to dissolve faster.
I had been told that langebienite takes 6 weeks or so to break down and become available, but I’m thinking that may only be the case when it’s mixed into the medium in the larger pieces…..if crushed into a powder I’d think it would act faster…??
3. Gypsum…..probably 1/3 of the plants I’ve grown have required a small amount of cal mag.
I bought some gypsum powder recently and thought it could be the organic source for calcium. I added 1 tablespoon per gal of medium when I prepared my initial mix.
Same questions here…..how quick and how long??
It’s interesting that my current grow, which is 3 clones, all different strains, was the first time I’ve tried gypsum powder. Early/mid veg one of the 3 plants showed a moderate magnesium def.
I didn’t know if it might have been caused by the presence of the gypsum, perhaps it (along with my tap water of 144ppm) was too much calcium which locked out mag….
I have a foliar dose of Epsom and a small dose of cal mag (2ml/gal) and the problem seemed to go away, although that particular plant just seems leggy…..but it could just be the strain (fruity pebbles OG)….View attachment 5303891
Any help or guidance here is really appreciated….
The pic was yesterday and I flipped them to 12/12 about 5 days ago. I hope they don’t stretch too much as my 2.5’ x 6’ grow space is wall to wall.
Thanks again folks

Click to expand...

Bone meal P takes a while to break down, and much of it never does.

Langbeinite is a salt and provides nutrients quickly. It has a low salt index, but it's still good to be cautious.

Gypsum, if you need it, is awesome and much of it (Ca and Mg) is quickly available.

That said, you probably don't need any of them (strain-depending). Roll with your 4-4-4, EWC, mycos (your coco blend or 4-4-4 might already have mycorrhizae) - and some kind of rock dust for micros. If you run into Mg problems, add a tiny bit of Langbeinite.

bone meal = slow release phosphorus and calcium. Fishbone meal is slightly quicker in availability due to smaller bone density from the start and the process used too break down/pasteurize /micro biology attached to the product. In total its slow release and initial results could be seen within a few weeks if you add more biology “ewc” and “fulvic acids” and “compost”. mycos will make P more availability as well, I'm using dynomyco.

Langbeinite= mostly Mg going to be scene and very easy to overdue Mg its a fast one. pluss your foliar feeding epsom that has sulfur and Mg. Not to mention foliar is fastest release method.
Id be careful

Gypsum= very fast sulfur and Calcium, the more micronized the better. Add biology to help quicken absorption. careful with the epsom foliar and sulfur top dress.

Bullmark said:

Hello all, so I’ve had quite a few grows using buffered coco amended w/ dry organics. I’ve been very lucky with the results but I’d like to gain a little better understanding of the specific products I’m using. The success might be because of something I’m using or despite of it.
Anyway, I amend my coco w/ a dry 4-4-4 fert (for veg), a 2-8-4 (flower), myco, and EWC……those have been a constant base. I mix in a little of a few others and top dress with them also.
My questions are specifically about:
1. Bone meal (3-15-0)...I know it’s a great source of phosphorus but HOW QUICKLY IS IT AVAILABLE ? And HOW LONG DOES IT LAST?
2. Langebienite (0-0-22)….I know it is soluble and the benefits it provides, but what about AVAILABILITY & DURATION?? I should note that I crush it into a very fine powder, which causes it to dissolve faster.
I had been told that langebienite takes 6 weeks or so to break down and become available, but I’m thinking that may only be the case when it’s mixed into the medium in the larger pieces…..if crushed into a powder I’d think it would act faster…??
3. Gypsum…..probably 1/3 of the plants I’ve grown have required a small amount of cal mag.
I bought some gypsum powder recently and thought it could be the organic source for calcium. I added 1 tablespoon per gal of medium when I prepared my initial mix.
Same questions here…..how quick and how long??
It’s interesting that my current grow, which is 3 clones, all different strains, was the first time I’ve tried gypsum powder. Early/mid veg one of the 3 plants showed a moderate magnesium def.
I didn’t know if it might have been caused by the presence of the gypsum, perhaps it (along with my tap water of 144ppm) was too much calcium which locked out mag….
I have a foliar dose of Epsom and a small dose of cal mag (2ml/gal) and the problem seemed to go away, although that particular plant just seems leggy…..but it could just be the strain (fruity pebbles OG)….View attachment 5303891
Any help or guidance here is really appreciated….
The pic was yesterday and I flipped them to 12/12 about 5 days ago. I hope they don’t stretch too much as my 2.5’ x 6’ grow space is wall to wall.
Thanks again folks

Click to expand...

It was probably caused by the Gypsum. A quick Google of how Gypsum effects Magnesium..

The structure of sodic and magnesic soils (soils high in sodium and magnesium) can be improved by applying calcium compounds such as gypsum (calcium sulfate) at high rates. As the gypsum dissolves, it releases calcium ions that displace sodium (or magnesium) on the clay colloids.

Bone meal is available extremely quick, and lasts forever. I have seen countless organic grows ruined by top dressing bone meal. The phosphorus stays in the root zone indefinitely while N K etc are washing vertically. There's a reason bones dont break down fast in nature. Also a reason manure come with free microbes.