Herbicide composition and preparation method
A technology of herbicide and target substance, which is applied in the field of mixed herbicide composition, can solve the problems of poor drug efficacy and achieve the effects of reducing the degree of influence, long-lasting effect and obvious synergistic effect
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Embodiment 1
[0027] Example 1 A 25% by weight dispersible oil suspension concentrate of corn herbicides containing atrazine, flumesulam and nicosulfuron was prepared. Composition and percentage by weight are as follows: 1.5% of flumesulam, 19.5% of atrazine, 4% of nicosulfuron, 160115% of agricultural milk, 0.5% of organic bentonite, 49.5% of methyl oleate; the steps of the preparation method and The conditions are as follows: (1) According to the ratio of raw materials, various raw materials are added into the stirring tank and stirred for 30 minutes, and shearing is carried out at the same time during the stirring process; (2) The materials after stirring for 30 minutes are passed through sand mill machine, the particle size D50 must not be greater than 8 microns; (3) the ground material is added to a shear kettle and sheared for 30 minutes; the dispersible oil suspension concentrate of the composition is obtained.
[0028] Atrazine: chemical name: 2-chloro-4-diethylamino-6-isopropylamin...
Embodiment 2
[0033] Example 2 A 60% by weight dispersible oil suspension concentrate of corn herbicides containing atrazine, fensulfame and alachlor was prepared. The composition and weight percentage are as follows: 20% of atrazine, 1.5% of sulfachlor, 38.5% of W (alachlor), 15% of Nongru 160115%, and 25% of methyl oleate. All the other are with embodiment 1.
[0034] Alachlor: chemical name: 2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamide; structural formula:
[0035]
Embodiment 3
[0036] Embodiment 3 replaces the alachlor of embodiment 2 with acetochlor; All the other are with embodiment 2.
[0037] Acetochlor: Chemical name: 2-ethyl-6-methyl--N-ethoxymethyl-α-chloroacetanilide.
[0038] Structural formula:
[0039]
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