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Compost troubleshooting

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DonyaQuick

Crowing
Premium Feather Member
Jun 22, 2021
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Upstate NY (Otsego county), USA
In July I set up a compost bin for a mixture of grass clippings, veggie scraps, and dirty litter from my coop (roosts are too low for deep litter; had a chicken that couldn't jump onto them, long story). I took a spare 10ft roll of hardware cloth and made a circle out of it to hold everything.

My pile is steadily consuming all of the "green" that I add from rotten bananas to grass and appears to be leaving the "brown" almost untouched. It will heat up when I give it grass clippings or veggie scraps, but then it cools down a few days later and eventually all I find is shavings when I turn it. It's always moist/wet but not saturated when I dig around in it. I read that it might need to be full to work properly, but I also can't seem to get it more than halfway. I add more and it just compresses back down in a week even if I turn it. For a long time the pile was sustaining around 15-20F above ambient daytime temperature for most of the time, which meant it got up to 90F a few times but mostly was lower. Today it's just dropped to ambient temp.

This is what it looks like. There is grass on the top because I recently added some.

IMG_20211002_153222.jpg

There is also some grass in places around the sides about halfway down, but it doesn't extend to the middle. Early on there was a brief hint of ammonia when I turned it, but that's been gone for a while.

What am I doing wrong with this thing? Will it actually cold compost like this or am I going to just have a bunch of washed shavings when the snow melts in the spring?

This is my first time trying to do compost. Nearest I've ever done to compost to date is an indoor potted tree were I throw veggie scraps and indoor plant trimmings in the pot and a pill bug colony breaks it down.
 
Welcome to the wonderful world of compost!

It sounds like you're doing everything more or less right...not a lot obvious jumping out. Two things that it MIGHT be: moisture (is it not damp enough? Think "wrung out sponge" moistness, and maybe your ratio is not enough greens for the carbon.

It sounds like your nitrogen/greens are rotting, but the brown/carbons are taking their time? They will eventually break down, but maybe try adding a bit more green, wetting it down a bit more, and making sure things are as mixed up as possible. Hopefully that helps and you're harvesting "black gold" next spring!
 
I’ve been asking a neighbor for their grass clippings to give us extra green to offset all the brown. We add water if it seems too dry… We’re new to this volume of composting, but it seems to be working pretty well.
 
I have the opposite problem, where I can't find enough carbon to keep my piles from running a little "hot". Leaf season is coming, and I've been buying old hay cheap, but it can be tough when you're bringing this much nitrogen into the system twice a week...

ACE4BD66-203D-46B0-909E-C002DCB8036F.jpeg
 
It sounds like your nitrogen/greens are rotting, but the brown/carbons are taking their time? They will eventually break down, but maybe try adding a bit more green, wetting it down a bit more, and making sure things are as mixed up as possible.
Thanks! I should have a good bunch of green to toss on soon when I clean out part of the run that hasn't been breaking down much. Maybe that will get it going again. I use grass clippings in the run so it will be a good dose of almost entirely a mix of that and manure. It's just weird that another portion of my run seems to be doing a better job at breaking down woody stuff than the actual compost pile. I periodically add bits of pine shavings and pine bark mulch there, but it does seem to break down over time. I'm sort of wishing I'd built the compost pile closer and in a way that would have let me use the chickens to turn it, since they must have magic feet or something. Instead I put it on the other end of the field in case the veggie scraps attracted animals.
 
I have the opposite problem, where I can't find enough carbon to keep my piles from running a little "hot". Leaf season is coming, and I've been buying old hay cheap, but it can be tough when you're bringing this much nitrogen into the system twice a week...

View attachment 2859041
That’s destined for compost? Why? It looks like perfectly edible produce…
 
It's just weird that another portion of my run seems to be doing a better job at breaking down woody stuff than the actual compost pile. I periodically add bits of pine shavings and pine bark mulch there, but it does seem to break down over time. I'm sort of wishing I'd built the compost pile closer and in a way that would have let me use the chickens to turn it, since they must have magic feet or something. Instead I put it on the other end of the field in case the veggie scraps attracted animals.

You could move the compost pile into the run, let the chickens spread it around, and let it decompose there.

The stuff in the run might decompose faster because it is in contact with the soil (which provides lots of microorganisms to help it break down, and may also help keep the moisture level right). And of course the chickens keep adding nitrogen (manure) and stirring it around.
 
Just had a thought that may be a bit out there...I've got a forest with a lot of decaying fallen trees here and there. What if I add a piece of nasty, almost-broken down wood to the pile to try to get more wood-eating micro fauna going in the pile?

You could move the compost pile into the run, let the chickens spread it around, and let it decompose there.

I worry it would attract animals to the run due to the food scraps. However, I may try exporting more of the dirty coop litter into the run rather than the compost pile once I've got a larger run extension built. That would help stop the compost pile from getting overrun with woody stuff.
 
I don't see that you are doing anything wrong with your compost pile. Wood shavings just take a very long time to break down. This site (https://deepgreenpermaculture.com/diy-instructions/hot-compost-composting-in-18-days/ ) explains it better, but you are aiming for a carbon to nitrogen ratio around 25:1 for everything to break down quickly. Your grass and veggie scraps are already at that ratio, but the shavings are closer to 400:1 so it takes a lot of nitrogen to break down the carbon. You can either keep adding more green and they will eventually break down, or what I do, is periodically sift out my finished compost and then return unfinished parts like wood chips to the pile to keep breaking down. I've also taken the partially finished shavings and used them as mulch around shrubs when I'm tired of waiting.
 
Thanks! I should have a good bunch of green to toss on soon when I clean out part of the run that hasn't been breaking down much. Maybe that will get it going again. I use grass clippings in the run so it will be a good dose of almost entirely a mix of that and manure. It's just weird that another portion of my run seems to be doing a better job at breaking down woody stuff than the actual compost pile. I periodically add bits of pine shavings and pine bark mulch there, but it does seem to break down over time. I'm sort of wishing I'd built the compost pile closer and in a way that would have let me use the chickens to turn it, since they must have magic feet or something. Instead I put it on the other end of the field in case the veggie scraps attracted animals.

Yeah, give it a bit more greens and see how it goes...and as I mentioned, keep an eye on the moisture level.

I compost in my run...just built my 4th in-run composter...chickens LOVE turning compost, and will turn it a lot more than you ever could.

Good luck!
 

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