HERBICIDAL COMPOSITION AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2005 - IPC

FIELD: agriculture, in particular chemical agents for plant protection.

SUBSTANCE: sulfonylaminourea and phenoxyacetic acid derivatives-based herbicidal composition contains nonionic surfactant, anion-active surfactant sulfonol, kaolin as carrier, and carbon white. As sulfonylaminourea and phenoxyacetic acid derivatives it contains 3-(6-methyl-4-methoxy-1,3,5-triazinyl-2-)-1-(2-chlorophenylsulphonyl)urea and 2-methyl-4-chlorophenoxyacetic acid sodium salt, respectively. Additionally composition contains triethanolamine or diethanolamine, disubstituted potassium phosphate as stabilizer in the component ratio of (mass %): 2-methyl-4-chlorophenoxyacetic acid sodium salt 55-72; 3-(6-methyl-4-methoxy-1,3,5-triazinyl-2-)-1-(2-chlorophenylsulphonyl)urea 0.3-0.4; nonionnic surfactant 0.05-0.15; sulfonol 0.05-0.15; triethanolamine or diethanolamine 0.15-0.2; carbon white 0.37-1.5; disubstituted potassium phosphate 1.0-2.0; and balance: kaolin. Composition components are separately applied on carrier surface. More specifically triethanolamine or diethanolamine is separately mixed with kaolin; 3-(6-methyl-4-methoxy-1,3,5-triazinyl-2-)-1-(2-chlorophenylsulphonyl)urea, and carbon white are separately mixed with kaolin; disubstituted potassium phosphate, nonionic surfactant, and sulfonol are separately mixed with kaolin; and 2-methyl-4-chlorophenoxyacetic acid sodium salt also is separately mixed with kaolin. Mixtures are conditioned for 24 h at room temperature and then are blended to provide mentioned above component ratio in product.

EFFECT: herbicidal composition of increased activity and deferred hydrolysis in wetted powder.

3 cl, 6 ex, 2 tbl