- 问题详情:Whenkeepingducks,onehastoconsiderjusthowmanythelandwillsupport.Generallytheruleis100ducksperhectare.Ifmorethanthisproportionisintroduced,thereisariskofcompactingthesoil,whichcanleadtomuddyconditionsforlongperiodsastherainisnoteasilyabsorbedin...
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