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Urea as a Source of Nitrogen?
In order for urine to have sufficient amount of nitrogen, basically you need to be eating also, a lot of protin. So if i were to purchase products to put into it, would jis drain me financially. I'm not actually spending any money whatever, just a bunch of coffee egg shells and plants that i've mowed on the the property and stuff. Ito'ld be really expensive compcgeltin compond say, it's pretty, pretty cheap.