New eco-friendly fertilizer: Plant farts
While those lousy cows are pooting out greenhouse gases, some hardworking plants – anaerobic digestors, which are crucial to the production of biogas – are making waste that can be used as cheap, natural fertilizer. Digestate, the byproduct of anaerobic digestion, could replace manufactured nitrogen fertilizers that are energy-intensive and expensive to produce.
Could anaerobic digestion by-products replace manufactured fertilizers?, BusinessGreen.
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