Compost Troubleshooting Round 2

DonyaQuick

Songster
Jun 22, 2021
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Upstate NY (Otsego county), USA
I have three compost piles now in various states. Last year I was trying to troubleshoot the very first one, which was consuming greens and leaving browns almost completely untouched. The diagnosis then was too much carbon due to a high shavings to manure ratio, so I tried to up the percentage of nitrogen-rich things finishing off the pile. Post-thaw, it appears to have gone back to doing the same darned thing though. My two other piles are going very differently in comparison.

Compost pile 2 is started pretty much like the first one composition-wise and got started while there were still periodic freezes. The main differences are that it's in a different location and the coop waste going in has a higher manure to shavings ratio since I have a kitty-litter-style method of cleaning now. Even though it's pretty new, it's full of bugs and worms, and woody material appears to already be breaking down in places. I haven't measured its temperature yet but given the animals in it I don't think it's hot.

Compost pile 3 is the newest and next to the original one. With the warming temperatures, I decided to rake out my deep litter and start anew in the coop since it had built up too much depth and a lot of that depth was getting very soil-like. And now it's hot composting! The heap was 110F in the middle this morning with an ambient temp of something like 36F. I guess I shouldn't be too surprised by that; my run's deep litter was keeping a plain old rubber water tub completely unfrozen all the way down to around 10F on some days. Now that it's in a heap and away from the chickens, the cooler outer later of the pile seems to have attracted a nice population of sow bugs that are helping to break down the remaining woody material.

With those two piles looking like they're going along nicely, the first one is still driving me nuts. Even the extra manure I added late last year to increase nitrogen content doesn't seem to be breaking down properly; it's just getting reduced to whatever fibers are in it, like it was washed rather than properly decomposed. Moisture content seems fine; it's kind of hard to turn because it's deep, but it's still spongey and not compacted. What sticks out to me the most now is that whenever I turn the pile there are zero signs of life at all. No bugs, worms, or fungus anywhere except for some grass just starting to grow up the outside of the base. At the risk of an absurd question, is it possible that something bad somehow ended up in that first pile that has been stopping bacteria and bugs from colonizing it? My other two piles are very lively if I dig into them whereas the first one seems determined to be dead.
 
Took a quick pic of my composting chickens hard at work today. Hope you can see how dark black that chicken run compost is looking. Basically, lots of grass clippings and leaves from last fall. Breaking down nicely, I think. This is my preferred way to make compost. Just let the chickens do the work!

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It's starting to look like there may have been an herbicide or insecticide applied to patches of the clearing around the house before my husband and I got this place. Last year when we moved in there were some randomly spaced bare dirt areas. Nothing except a few annoying weeds and nettles would grow in those places, and even those plants seemed to have trouble getting a hold compared to the same species cropping up elsewhere. When they got tall enough they did get mowed, bagged, and dumped in that compost a couple times. We thought it was something to do with the soil or drainage issues causing the bare patches last year, but now this year those patches seem to be greening up more even though we've done basically nothing to them. They're still not looking great but definitely have more evenly spread vegetation than before and grass is starting to get involved as well. I will try adding some healthy material from piles 2 and 3 to the first one and see what happens.
 
It's starting to look like there may have been an herbicide or insecticide applied to patches of the clearing around the house before my husband and I got this place.

That would be a game changer. I just watched a YouTube video this morning of a gardener whose tomato plants were dying after applying horse manure compost to a patch of his garden. Turns out the horses had eaten some hay sprayed with a chemical to kill insects, and that stuff will stay in the soil/compost for 2-3 years killing the plants.

:idunno If you suspect compost bin 1 may have some herbicide or insecticide in that material, you might be better off just dumping that load somewhere where it can't do much harm and just starting over with bin 1. At this point, I don't think I would even bother with it. Sounds like your bins 2 and 3 are coming along fine, so maybe just start over with bin 1. At least you would know the contents of bin 1 would be free of herbicides or insecticides this time as you build it up. Anyways, good luck.
 
It’s possible something might have gotten into pile #1 if some hay or straw was in there that was sprayed with some persistent pesticide. No idea what the odds of that, but it’s possible.

It might be worth trying to inoculate pile one with some broken down, critter-heavy material from one of the other piles (maybe when turning) to try to kick start it a bit.
 
I think that is a good idea. Take some compost material from the bins that are coming along fine and add them to the first bin that is not doing well.

The other option that comes to my mind, is just mixing all the material in bin 1 with the compost material in bins 2 and 3, and then start over with bin 1.

In my case, I would probably just dump all of bin 1 into my chicken run compost system and let the chickens process it for me. I have my best success with my chicken run compost, but I also have 5 pallet compost bins that I basically just fill and let sit - for years - until I want to harvest the compost.
If there is something fishy in the pile I would want it nowhere near my birds.
But it is hard to tell what is not working without looking at it. Especially if the pile has been turned. Some woodsy material does not decompose well - that's why it is prized for fenceposts etc.
I'd add some material from the other 2 piles, and some nicely enriched stuff from the coop.
 
Chicken manure is very rich in nitrogen, but the nitrogen is not bound very tightly. It can wash out and it can volatilize. If the rest of the pile is not trapping that nitrogen it soaks into the soil with the water or is lost to the air. If the carbon (wood chips) is ground finer then there is more surface area to trap nitrogen and kick off the decmposition. Adding compost from another pile will have sort of the same effect. More nitrogen will be trapped and the fine materiall will hold the nitrogen in contact with the wood.
 
Kind of terrifying that you can put a herbicide on plants, then have an animal eat that plant, have the animal digest and poop out that plant, then compost that waste…and it persists and will kill a plant you put that compost on.
Herbacides do not do that. The reference above was to Ivermectin horse wormer passing through the digestive system and affecting helminths in the soil.
 

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