"John Wheeler" wrote in message
...
I suspect it's anaerobic, because of lack of oxygen. How does it smell
when you turn it? Frequent turning helps bring in oxygen and mixing up the
ingredients. Layering by itself does little. Adding fertilizer that you
pay for is mostly wasting money.

While generally true that is not always the case. If circumstances are such
that you have too high a proportion of carbon (brown) to nitrogen (green) a
bit of relatively inexpensive spring lawn fertilizer can redress the
balance.

Jim