412 - 一般名無し質問者 2022/05/23(月) 14:38:30 ID:tu8Ncngb0
人糞に限定しなければほとんど世界中かつ現在も使われている
人糞に限定してもほとんど世界中の農耕社会で用いられていた
＞The recovery and use of urine and feces in "dry sanitation systems", i.e. without sewers or without mixing substantial amounts of water with the excreta, has been practiced by almost all cultures.
＞Many traditional agricultural societies recognized the value of human waste for soil fertility and practised the "dry" collection and reuse of excreta.
https://en.wikipedia.org/wiki/Ecological_sanitation#History