ETHYLENEDIAMINETETRAACETIC ACID DERIVATIVES,THEIR SALTS AND HEAVEY METAL CHELATES,THEIR PRODUCTION AND THEIR USE FORD HEAVY METAL CHELATES,THEIR PRODUCTION AND THEIR USE FOR THE CONTROL OF METAL-DEFICIENCY PHENOMENA IN BIOLOGICAL SYSTEMS

摘要

1402764 Combating metal deficiency in plants CIBA-GEIGY AG 28 July 1972 [29 July 1971] 35459/72 Heading C1B [Also in Division C2] A method of combating metal deficiency in plants growing in alkaline soil comprises applying to the soil or the plants a metal chelate of formula wherein R represents a phenyl or naphthyl group which is unsubstituted or substituted by a halogen atom or a hydroxy, mercapto, nitro, cyano, thiocyano, alkyl, alkoxy, halogenoalkyl, acyl, acylamino, carboxyl, alkoxycarbonyl, carbamoyl, pyridoylamino, N-carboxyalkyl-carbamoyl, sulpho, sulphamoyl, mono- or dialkylated or phenylated sulphamoyl which can also carry one of the groups -CH 2 .CH 2 .SO 3 H or -CH 2 .COOH, alkylsulphonyl, alkoxysulphonyl or an unsubstituted or hydroxy-substituted phenylsulphonyl or phenoxysulphonyl group; or R represents an anilino or pyridoylamino group or a pyridine or quinoline group which is unsubstituted or substituted by a halogen atom or a hydroxy, alkyl or carbamoyl group or a salt or chelate thereof with a metal.