| http://www.w3.org/ns/prov#value | - As you can see, the amount of nitrogen varies quite a bit (from a low of 0.3% in cow dung to a high of 1.6% in hen droppings), while the phosphorus content remains about the same (0. 1 % to 0.4%) for all of the critters except hens (as much as 1.5%).
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