Refers to animal or human excrement used as fertilizer, especially in traditional farming. 'Night soil' is a historical term for human waste used this way.
The farmer applied manure to the rice field.
Spread manure on the field.
In the past, night soil was used as a valuable fertilizer.
They spread manure over the field.
In the old days, people used to draw night soil from a manure pit.
糞 simply means feces or dung in general, while 肥 specifically refers to such waste once it is used or intended as fertilizer.
grow fat; gain weight; put on weight · become fertile (soil) · be discerning; be refined; have a good eye/palate/ear · become rich; become wealthy
cesspool; night-soil reservoir; manure pit
manure; night soil
basal fertilizer; base fertilizer; pre-planting fertilizer
winter manure; winter fertilizer
rich soil; fertile soil
chamber pot; jerry
night-soil bucket; honey bucket
compost; grass compost
Derived from the verb 肥える (こえる, 'to grow fat/fertile'), referring to something that enriches the soil.
post-harvest fertilizer
compost; manure
fertilizer made from composted natto