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expand recipe Phosphorus (P) soil/agricultural to FEDEFL Phosphorus emission/soil/industrial/* #164

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This PR adds new target flows for Phosphorus (P), without replacing the existing ones.

Phosphorus (P) is a ReCiPe flowable that has characterization factors in the Freshwater eutrophication impact category. There are three recipe contexts for this flowable: freshwater, agricultural soil, and sea water.

Across the recipe to fedefl mapping, agricultural soil gets mapped to fedefl emission/ground/agricultural*. But Ecoinvent also maps the agricultural soil context to their soil/industrial. Hence the suggestion to map this particular flow soil/agricultural to emission/soil/industrial/*, this way we avoid having no impacts in this context for this flow, and we make the impacts consistent with Ecoinvent. @ErCollao @ganorris

… soil/agricultural

Phosphorus (P) is a ReCiPe flowable that only affects Freshwater eutrophication. There's three contexts for this flow: freshwater, agricultural soil, and sea water. Currently, agricultural soil gets mapped to fedefl  emission/ground/agricultural*. Ecoinvent also maps this agricultural soil to their soil/industrial. I think it makes sense that the original recipe flow gets also mapped to emission/soil/industrial*. The only issue is that there is no other recipe soil/agricultural being mapped to soil/industrial, so it would be one case where the context mapping is inconsistent with the context mapping so far
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