this post was submitted on 24 Aug 2023
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[–] reddig33@lemmy.world 1 points 1 year ago* (last edited 1 year ago) (4 children)

Why is the eutrophication so high for dairy? I’d think pesticide use would drive up the value on plant-based products. Cows don’t need fertilized grass/hay. Is it from the cow excrement? Wouldn’t excrement be too valuable as a fertilizer and for producing methane power to just let it all run off into streams etc.?

[–] runlikellama@lemmy.sdf.org 4 points 1 year ago

In New Zealand HUGE amounts of fertiliser are used to boost the amount of grass grown and thus cows per unit area. Some ends in groundwater and a lot can end up in streams and rivers too.

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