use of ferrocen derivatives to supply plants with iron and duenge - money, particularly on measures aimed to prevent and / or healing of eisenmangelkrankheiten

摘要

A method of supplying plants with iron which comprises applying to the plants, or to the substrate in which they grow, at least one ferrocene derivative of the formula IMAGE (I) wherein R represents alkyl with 3 to 20 carbon atoms, preferably 7 to 20 carbon atoms, alone or in admixture with a diluent or carrier.