| 摘要 |
Disclosed is a composition comprising, on a weight to volume basis about 5.0 % to 50.0 % pendimethalin having from 4 % to 100 % an orange crystal form, the rest being yellow crystal form; about 3.0 % to 30.0 % of coformulants and 20.0 % to 92.0 % water. Also disclosed is a method of preparing said composition characterised in mixing, on a weight to volume basis about 5.0 % to 50.0 % solid pendimethalin having from about 4.0 % to 100 % orange crystal form and from about 0 to 96 % yellow crystal form in an aqueous solution with the content of surfactants, dispersing agents, wetting agents, antifoaming agents. Thus obtained mixture is milled to obtain an average particle size of suspended particles of less than 20 microns.
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