Questions tagged [composting]

the process of creating compost: organic matter that has been decomposed and recycled as a fertilizer and soil amendment. For composting with worms see [vermicomposting], for anaerobic composting with microorganisms see [bokashi]

Compost is organic matter that has been decomposed and recycled as a fertilizer and soil amendment. It is a key ingredient in organic farming. When done locally (e.g. at home) composting may also reduce one's carbon footprint.

Composting process: At the simplest level, the process of composting simply requires making a heap of wetted organic matter (leaves, "green" food waste) and waiting for the materials to break down into humus after a period of weeks or months. Modern, methodical composting is a multi-step, closely monitored process with measured inputs of water, air and carbon- and nitrogen-rich materials. The decomposition process is aided by shredding the plant matter, adding water and ensuring proper aeration by regularly turning the mixture. Worms and fungi further break up the material. Aerobic bacteria manage the chemical process by converting the inputs into heat, carbon dioxide and ammonium. The ammonium is further converted by bacteria into plant-nourishing nitrites and nitrates through the process of nitrification.

For composting with worms see

For anaerobic composting with microorganisms see

For composting plastics see

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Are mouldy kitchen scraps okay to compost?

I was reading about the dangers of introducing pathogens in a compost pile. As you know, some moulds can be toxic. So I am curious if the normal household mould that appears in the kitchen or the refridgerator is something I should be concerned…
theUg
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Does a compost pile for food scraps need some kind of starter material?

When starting a compost pile from scratch for kitchen food scraps, do I need some kind of starter material? For example, should I take any material from an established composting pile to seed it with appropriate biological agents? If needed, is…
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Is it normal to have maggots in my compost?

I noticed maggots in my compost scraps recently (not yet mixed in the tumbler). Is this all right? Should I do something to prevent this in the future? If so, what?
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How can I use my balcony compost during winter?

My balcony compost tends to freeze and stop working during winter time because I live in Quebec and we get an average of -13°C. Is there anything I can do to prolong my composting season?
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How can I detect leachate from a compost pile?

It's possible that a compost pile will leach in to the ground, possibly contaminating groundwater and nearby wells. If you're composting human or animal manure, the risk is greater, as is the concern of regulatory agencies. Is there a way to detect…
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How to aerate compost without turning?

Are there any sound methods that will allow my compost heap to stay aerated without me having to turn it? I realize that if left alone, it will still compost, but I would still like to speed up the process by having a way for it to stay aerated. I'm…
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Cooked food composting

Recently I started composting at home. As many sources told me not to put cooked food and several other things. Mainly to not attract animals. I don't put them on on my compost pile, but put put it in the bag for organic waste which goes to the…
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Dealing with seeds in a compost pile

We have moderately sized (under or around 0.5 m3) backyard composter. It is of simple cubic form with hatches at the bottom where the ready stuff is being taken out. Mostly food scraps go in there, but we also add garden waste, whether brown or…
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Compost in the sun or shade?

Is it better to have my compost pile in the sun, or in the shade? I have space on the north and south walls of my house, and want to know which would be a wiser place for the pile.
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Complete composting novice with a bucket of stinky black slime--toss or keep?

We decided to start composting without doing any research on how to do it. Thus we began filling an old painters bucket with food scraps. No meat or milk or anything, but veggie and fruit scraps , egg shells, some coffee grounds, etc. We put a piece…
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What are the Carbon-Nitrogen ratios of common household wastes?

Making a good compost requires the right Carbon-Nitrogen ratio of the mixture. But most of the compostable household wastes don't have an ideal 25-30:1 ratio and we call them "greens" or "browns". And each of those has a different C:N ratio and…
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What are the limits of planting directly into pre-compost material?

I was wondering what the limits were to planting into organic pre-compost material. As an experiment my father has grown a few things be simply planting them in a pile of used tea bags. This seems to work and teabags are amazingly swift become new…
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Indoor composting with limited space

I live in a small flat and my only place to grow things is in window boxes on my generously sized window ledges. I would like to be able do a small amount of composting with things like leaves from my plants, teabags and so forth. If I do it needs…
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How much liquid is produced when composting?

Composting is a great way of turning common wastes into a usable product. The compost should be wet enough to allow the composting process to happen. But when composting wet wastes there is some excess of liquid which drains out. I wouldn't usually…
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How do I revive an old compost pile?

I just moved into a new home that has a backyard composter (about 80 gallons). The composter has been sitting unused for an unknown amount of time (at least 3 months). How can I assess the health and status of the compost pile, and then what should…
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