A kind of corn field herbicide and its preparation method and application

Abstract

The present invention relates to the field of pesticides, more specifically, the present invention relates to a cornfield herbicide and its preparation method and application. The invention provides a cornfield herbicide, which can efficiently control weeds in cornfields by using compounded nicosulfuron, fluroxypyr and tembotrione, especially for various malignant broad-leaved weeds such as duck Plant grass, spinach, lettuce, field bindweed, Polygonum curliculum, pig scorpion, water peanut, Alisma, vetch, velvetleum, solanum nigrum, datura, and amaranth, etc. have good control effect; and the applicant can promote the deposition of nicosulfuron, fluroxypyr and tembotrione on the leaves by adding thickeners, dispersants, emulsifiers and solvents, and promote the adhesion of active ingredients on the leaves , wetting, spreading and penetration, and give full play to the role of active ingredients; in addition, the herbicide provided by the applicant has good storage and dispersion stability, and pourability, meeting the requirements of dispersible oil suspensions.

Description

technical field

[0001] The present invention relates to the field of pesticides, more specifically, the present invention relates to a cornfield herbicide and its preparation method and application. Background technique

[0002] Corn is the third largest crop and the second largest food crop in my country. It is not only related to the total grain output of our country, but also an important feed crop and chemical raw material. However, the occurrence of weeds in corn fields is becoming more and more serious, and their resistance is becoming more and more The stronger it is, so the weeding of cornfields has attracted the attention and attention of farmers in our country. According to statistics, there are currently 43 species of weeds in 22 families, 38 genera, and common weeds include: barnyardgrass, crabgrass, goosegrass, foxtail, amaranthus, quinoa, purslane, bindweed, etc. The rapid growth of weeds will take all kinds of nutrients needed by corn, and the rapid reproducti...

Examples

preparation example Construction

[0086] The second aspect of the present invention provides a kind of preparation method of cornfield herbicide as above, comprises the following steps:

[0087] The preparation raw materials of the herbicide are mixed, ground and filtered to obtain the herbicide.

[0088] The third aspect of the present invention provides an application of the cornfield herbicide as described above for controlling weeds in the cornfield.

Embodiment 1

[0092] This example provides a kind of corn field herbicide, and the preparation raw material of described herbicide comprises the solvent of 6wt% active ingredient, 1wt% thickener, 1wt% dispersant, 10wt% emulsifier and balance by weight percentage; The active ingredients include nicosulfuron, fluroxypyr and tembotrione in a weight ratio of 3:4:5; the thickener includes kale gum and cyclodextrin in a weight ratio of 1:3, so The cyclodextrin is sulfobutyl-β-cyclodextrin; the dispersant includes fatty acid methyl ester ethoxylate sulfonate and rosin polyol ester, the weight ratio is 2:1, and the rosin polyol ester is Rosin glyceride; The emulsifier includes fatty amine polyoxyethylene ether and castor oil polyoxyethylene ether, and the weight ratio is 2:3; the solvent is castor oil, turpentine, soybean oil, and the weight ratio is 1:1:1 ; The formulation of the herbicide is a dispersible oil suspension.

[0093] The nicosulfuron was purchased from Anhui Jiuyi Agriculture Co., L...

Embodiment 2

[0108] This example provides a kind of corn field herbicide, and the preparation raw material of described herbicide includes 20wt% active ingredient, 2wt% thickener, 5wt% dispersant, 15wt% emulsifier and the solvent of balance by weight percentage; The active ingredients include nicosulfuron, fluroxypyr and tembotrione in a weight ratio of 3:4:5; the thickeners include squash gum and cyclodextrin in a weight ratio of 1:5. The cyclodextrin is sulfobutyl-β-cyclodextrin; the dispersant includes fatty acid methyl ester ethoxylate sulfonate and rosin polyol ester, the weight ratio is 3:1, and the rosin polyol ester is Hydrogenated rosin glyceride; Described emulsifying agent comprises fatty amine polyoxyethylene ether and castor oil polyoxyethylene ether, and weight ratio is 3:2; Described solvent is castor oil, turpentine, soybean oil, and weight ratio is 1:1: 1; The formulation of the herbicide is a dispersible oil suspension.

[0109] The nicosulfuron was purchased from Anhui ...

technical field

[0001] The present invention relates to the field of pesticides, more specifically, the present invention relates to a cornfield herbicide and its preparation method and application. Background technique

[0002] Corn is the third largest crop and the second largest food crop in my country. It is not only related to the total grain output of our country, but also an important feed crop and chemical raw material. However, the occurrence of weeds in corn fields is becoming more and more serious, and their resistance is becoming more and more The stronger it is, so the weeding of cornfields has attracted the attention and attention of farmers in our country. According to statistics, there are currently 43 species of weeds in 22 families, 38 genera, and common weeds include: barnyardgrass, crabgrass, goosegrass, foxtail, amaranthus, quinoa, purslane, bindweed, etc. The rapid growth of weeds will take all kinds of nutrients needed by corn, and the rapid reproducti...

Examples

preparation example Construction

[0086] The second aspect of the present invention provides a kind of preparation method of cornfield herbicide as above, comprises the following steps:

[0087] The preparation raw materials of the herbicide are mixed, ground and filtered to obtain the herbicide.

[0088] The third aspect of the present invention provides an application of the cornfield herbicide as described above for controlling weeds in the cornfield.

Embodiment 1

[0092] This example provides a kind of corn field herbicide, and the preparation raw material of described herbicide comprises the solvent of 6wt% active ingredient, 1wt% thickener, 1wt% dispersant, 10wt% emulsifier and balance by weight percentage; The active ingredients include nicosulfuron, fluroxypyr and tembotrione in a weight ratio of 3:4:5; the thickener includes kale gum and cyclodextrin in a weight ratio of 1:3, so The cyclodextrin is sulfobutyl-β-cyclodextrin; the dispersant includes fatty acid methyl ester ethoxylate sulfonate and rosin polyol ester, the weight ratio is 2:1, and the rosin polyol ester is Rosin glyceride; The emulsifier includes fatty amine polyoxyethylene ether and castor oil polyoxyethylene ether, and the weight ratio is 2:3; the solvent is castor oil, turpentine, soybean oil, and the weight ratio is 1:1:1 ; The formulation of the herbicide is a dispersible oil suspension.

[0093] The nicosulfuron was purchased from Anhui Jiuyi Agriculture Co., L...

Embodiment 2

[0108] This example provides a kind of corn field herbicide, and the preparation raw material of described herbicide includes 20wt% active ingredient, 2wt% thickener, 5wt% dispersant, 15wt% emulsifier and the solvent of balance by weight percentage; The active ingredients include nicosulfuron, fluroxypyr and tembotrione in a weight ratio of 3:4:5; the thickeners include squash gum and cyclodextrin in a weight ratio of 1:5. The cyclodextrin is sulfobutyl-β-cyclodextrin; the dispersant includes fatty acid methyl ester ethoxylate sulfonate and rosin polyol ester, the weight ratio is 3:1, and the rosin polyol ester is Hydrogenated rosin glyceride; Described emulsifying agent comprises fatty amine polyoxyethylene ether and castor oil polyoxyethylene ether, and weight ratio is 3:2; Described solvent is castor oil, turpentine, soybean oil, and weight ratio is 1:1: 1; The formulation of the herbicide is a dispersible oil suspension.

[0109] The nicosulfuron was purchased from Anhui ...

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