Whenkeepingducks,onehastoconsiderjusthowmanythelandwill...
问题详情：Whenkeepingducks,onehastoconsiderjusthowmanythelandwillsupport.Generallytheruleis100ducksperhectare.Ifmorethanthisproportionisintroduced,thereisariskofcompactingthesoil,whichcanleadtomuddycond...