| 摘要 |
The plant treatment composition comprises: (a).an exogenous chemical, and (b).a first excipient substance that is an amphiphilic quaternary ammonium compound or mixture of such compounds having the formula R8-Wa-X-Yb-(CH2)n-N+(R9)(R10)(R11)T wherein R8 is a hydrocarbyl or haloalkyl group; W and Y are independently 0 or NH; a and b are independently 0 or 1 but at least one of a and b is 1; X is CO, SO or SO2; n is 2 to 4; R9, R10 and R11 are independently alkyl and T is a suitable anion. The weight ratio of the first excipient substance to the exogenous chemical is between about 1:3 and about 1:100. The exogenous chemical can be a herbicide, nematicide or plant growth regulator such as an acetanilide, cyclohexenone, fatty acid, hydroxybenzonitrile, imidazolinone, phenoxypropionate, substituted urea, sulphonylurea, thiocarbamate or triazine.
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