| 摘要 |
Plant treatment composition for application to the foliage of a plant comprising an aqueous application medium containing colloidally dispersed supramolecular aggregates comprising amphiphilic salt(s) having anions of an anionic exogenous chemical substance and cations derived by protonation of one or more polyamine(s) or derivatives having: (a) /- 2 N-containing groups of which a number (n), >= 1, are amino groups that can be protonated to form cationic primary, secondary or tertiary ammonium groups; and (b) at least one 6-30C hydrocarbyl or acyl group. The composition contains: (i) a molar amount (X) of the exogenous chemical substance to elicit a biological response when applied at a rate of 10-1000 l/ha; (ii) a molar amount (A) of polyamines; and (iii) a molar amount (B) of monovalent base(s) and their cations other than the polyamines, such that nA/(nA + B) = 0.01-1 and (nA + B)/X = 0.5-10.
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