Why does cow poo make plants grow?

cow_moo

Cow poo, cow pats, cow pies or cow dung – whatever you want to call the sloppy stuff that comes out of a cow’s bottom – has been used for hundreds of years to help plants grow. The farmer who lives near us puts it on his crops each year and you know exactly when he’s done it because there’s a stink in the air for days!

But exactly what is it that’s so special about cow poo that makes it good for plants?

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