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One who fertilizes; the agent that carries the fertilizing principle, as a moth to an orchid. A. R. Wallace.

A by-product from the manufacture of steel by the basic process, used as a fertilizer. It is rich in lime and contains 14 to 20 per cent of phosphoric acid. Called also Thomas slag, phosphatic slag, and odorless phosphate.

the works and bones of man. Am. Cyc. -- Bone dust, ground or pulverized bones, used as a fertilizer. -- Bone earth (Chem.), the earthy residuum after the calcination of bone, consisting chiefly of phosphate of calcium. -- Bone lace, a lace made of linen thread, so called because woven with bobbins of bone. -- Bone…

iefly of their excrement. It is rich in phosphates and ammonia, and is used as a powerful fertilizer.

Salts of potassium used in the manufacture of fertilizers.

t. -- Malt dust, fine particles of malt, or of the grain used in making malt; -used as a fertilizer. " Malt dust consists chiefly of the infant radicle separated from the grain." Sir H. Davy. -- Malt floor, a floor for drying malt. -- Malt house, or Malthouse, a house in which malt is made. -- Malt kiln, a heated c…

Herring familt (Brevoortia tyrannus), chiefly valuable for its oil and as a component of fertilizers; -- called also mossbunker, bony fish, chebog, pogy, hardhead, whitefish, etc.

ound, as used for making ornaments, figures, moldings, etc.; or calcined gypsum used as a fertilizer. Plaster cast, a copy of an object obtained by pouring plaster of Paris mixed with water into a mold. -- Plaster of Paris. Etym: [So called because originally brought from a suburb of Paris.] (Chem.) Anhydrous calcium…

as from a soluble to an insoluble state or the reverse; thus, phosphoric acid in certain fertilizers reverts.

An acid phosphate. Superphosphate of lime (Com. Chem.), a fertilizer obtained by trating bone dust, bone black, or phosphorite with sulphuric acid, whereby the insoluble neutral calcium phosphate, Ca3(PO4)2, is changed to the primary or acid calcium phosphate Ca(H2PO4)2, which is soluble and therefore available for the…

esp., the dried nitrogenous residue from tanks in which fat has been rendered, used as a fertilizer.