Foliar nutrients contg. humic acid or alkali humates - to increase solubility of fertilising components

摘要

Foliar nutrients contain conventional fertilisers and humic acid which increases their solubility and absorption by the leaves. The compsns. may contain salts, organic complexes, vitamins and natural or synthetic hormones. The humic acid is pref. present as an alkali humate. A typical compsn. consists of: 10 g alkali humates; 24g FeSO4; 40g MnSO4; 20g CuSO4; 10g ZnSO4; 10g basic acid, 4 g ammonium heptamolybdate. The fertiliser is obtd. by dilution of 1C of compsn. with 200 C of H2O.