Cow manure vs bat/chicken

Getting ready to do my first super soil mixed but I wanted to use cow manure as I have easier access to that. It's already composted so shouldn't be too big of an issue.

But all the super soil recipes i see use bat or chicken in their recipes, can I use cow at the same ratios? or do I need more or less?

And just to confirm I understand how to utilize the super soil. I'm only supposed to layer the bottom quarter or third of my pot with the super soil, and then I fill the rest of the way with my base soil. Correct?

Here is a general guideline for the NPK values of differing manures. I'm sure source/brand/level of composting will cause these numbers to vary, but at the very least gives you something to base your numbers on.

PopeyeSpinach said:

Getting ready to do my first super soil mixed but I wanted to use cow manure as I have easier access to that. It's already composted so shouldn't be too big of an issue.

But all the super soil recipes i see use bat or chicken in their recipes, can I use cow at the same ratios? or do I need more or less?

And just to confirm I understand how to utilize the super soil. I'm only supposed to layer the bottom quarter or third of my pot with the super soil, and then I fill the rest of the way with my base soil. Correct?

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Vet your manure source. Don't assume it's "clean". I've experienced contaminated manures in my own compost builds. It ain't nothin' nice...

waktoo said:

Vet your manure source. Don't assume it's "clean". I've experienced contaminated manures in my own compost builds. It ain't nothin' nice...

Herbicide Carryover in Hay, Manure, Compost, and Grass Clippings:

Caution to Hay Producers, Livestock Owners, Farmers, and Home Gardeners Many farmers and home gardeners have reported damage to vegetable and flower crops after applying horse or livestock manure, compost, hay, or grass clippings to the soil. The symptoms reported include poor seed germination...

lee.ces.ncsu.edu

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Jeez is there anything humas havent ruined yet

So one more question if I'm doing the super soil, everybody says to let it bake in a trash can for a month before you use it.

Does that still apply if the manure is already composted?

I might have really messed up with that one, I really need to repot and I don't want to have to do it twice

PopeyeSpinach said:

So one more question if I'm doing the super soil, everybody says to let it bake in a trash can for a month before you use it.

Does that still apply if the manure is already composted?

I might have really messed up with that one, I really need to repot and I don't want to have to do it twice

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You've already made a soil mix with the compost in question?

I know nowt about super soil, but amend my FFOF/perlite mix with this poultry manure and nothing but water until
day 50 from sprout. Auto grower. I'm an old, so I K.I.S.S.

PopeyeSpinach said:

So one more question if I'm doing the super soil, everybody says to let it bake in a trash can for a month before you use it.

Does that still apply if the manure is already composted?

I might have really messed up with that one, I really need to repot and I don't want to have to do it twice

Click to expand...

Manure is already composted so no need to cook it in. Always good to get a head start but cooking in slow release fertilizer is not required. D-lime, on the other hand, is another story.
Cow shit is not quite as concentrated as chicken or bat/seabird shit and is slower release. You can substitute fertilizers and yes, you can increase the quantity of cow manure to guano or chicken shit; exactly by how much is debatable. You certainly don’t have to be exact; maybe 20% more? Guano is really concentrated; don’t need much but it’s easier to get into trouble with than cow shit. I prefer chicken because it’s fast release but not as expensive or hard to find as guano.
You can choose to layer the soil when you build your pots or not layer the soil. There’s no right way to do it. Throw it all in together; it does not really matter as long as everything they will need for the current cycle to the next transplant is already in there. They will find it.