| http://www.w3.org/ns/prov#value | - In a seventh specific form the invention could be said to reside in a foliar fertiliser composition providing for a substantially consistent enhancement of a crop characteristic for grape vines, said composition including soluble salts of the following trace elements in the following ranges of relative proportions of the respective element by weight; from 1.0 to 2.34 copper, from 2.0 to 4.66 zinc,
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