eli5 why does manure make good fertiliser if excrement is meant to be the bad parts and chemicals that the body cant use
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Manure isn’t just anybody’s poo. It’s cow poo. Cows are ruminants – they have multiple stomachs for digesting plant matter in like grass, which is not very nutritious to us single-stomach havers. What’s so special about these stomachs? They have bacteria, like that gut microbiome you’ve been hearing about lately. Cows have four bioreactors full of bacteria capable of breaking down and extracting energy from that tough stuff. Mix that digested crap and the bacteria ecosystem that comes with it with some dirt, and you have more than just dirt, you have something living and life-sustaining: soil.
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