Here's what rhymes with composting.

Consider these alternatives

recycle / cycle manure / full incineration / information biodegradable / capable reuse / use digestion / question caching / having reforestation / operation latrine / seen irradiation / operation latrines / means sewage / fluid reusing / using rubbish / judges trash / as hydroponic / chronic leaching / teaching afforestation / operation aeration / education incinerator / later