potash superphosphate

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• chemical industry — Introduction       complex of processes, operations, and organizations engaged in the manufacture of chemicals and their derivatives.       Although the chemical industry may be described simply as the industry that uses chemistry and… …   Universalium

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• POTASSIUM — Le potassium, troisième élément de ce groupe, possède les propriétés caractéristiques des métaux alcalins. Il a été découvert en 1807 par Humphry Davy lors de la réduction électrolytique de la potasse caustique fondue (KOH). Son symbole chimique… …   Encyclopédie Universelle

• NPK rating — NPK redirects here. For the company that uses the NPK stock symbol, see National Presto Industries. NPK rating (or N P K) is used to label fertilizer based on the relative content of the chemicals nitrogen(N), phosphorus(P), and potassium(K) that …   Wikipedia

• fertilizer — /ferr tl uy zeuhr/, n. 1. any substance used to fertilize the soil, esp. a commercial or chemical manure. 2. a person, insect, etc., that fertilizes an animal or plant: Bees are fertilizers of flowers. [1655 65; FERTILIZE + ER1] * * * Natural or… …   Universalium

• Fertilizer — Tennessee Valley Authority: Results of Fertilizer demonstration 1942 …   Wikipedia

• Earthworm — Taxobox name = Earthworm image width = 250px image2 width = 250px image2 caption = Lumbricus terrestris, the Common European Earthworm regnum = Animalia phylum = Annelida classis = Oligochaeta ordo = Haplotaxida subordo = Lumbricina subdivision… …   Wikipedia

• fertilizer — I (New American Roget s College Thesaurus) n. manure, compost, guano. See agriculture. II (Roget s IV) n. Syn. manure, top dressing, organic fertilizer, commercial fertilizer, chemical fertilizer, plant food, compost, humus, mulch, soil amendment …   English dictionary for students

• cetotolite — sēˈtōd.əlˌīt noun ( s) Etymology: cet + otolite “ear bone” : a fossil bone of a whale; usually : one of the often detached and well preserved tympanic or petrosal bones * * * cetotolite Palæont. (sɪˈtɒtəlaɪt) [f. Gr. κῆτος whale + οὖς (ωτ ) ear + …   Useful english dictionary