Booklet No. 8 of 8: PRODUCTION OF NPK FERTILIZERS …
are normally named NP and NK fertilizers. These types of fertilizers can normally be pro-duced in NPK plants and emission levels will typically be within the limits valid for NPK grades. The most widespread NPK fertilizers in Europe contain nitrate and/or ammonium salts. NPK fertilizers can be produced in four, basically different, ways:-
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