MODERN DAY IMPSTY'S SHIT
The soil on the allotments is chalky and very poor, and so we
often give our plants a feed of nettle or comfrey liquid. We cut the
plants down and put them in a big tub of water for a few weeks. The
smell is disgusting and just like Impsty's shit, big fat maggots appear
every week for a few months before metamorphosing into
god-knows-what. We then water the liquid down (about 10 parts water, to
1 part liquid) and pour it onto the plants when they are flowering.
We always do this at the end of a day, because the smell isn't too
pleasant, but the plants love it.