Herbicide for winter wheat field and preparation method thereof

Abstract

The invention discloses a preparation method of a herbicide for a winter wheat field. The preparation method of the herbicide for the winter wheat field comprises the following steps: stirring and mixing a herbicidal composition, a sustained release agent, a surfactant, a filler and a solvent according to a weight ratio of 100:(1 to 10):(1 to 5):(2 to 10):(20 to 50) to prepare the herbicide for the winter wheat field, wherein the herbicidal composition comprises fluazifop-p-butyl, napropamide, clomazone, butachlor, atrazine, propazine and an ALS inhibitor. The herbicide has high herbicidal activity and wide weed control spectrum, kills weeds while having the weeds and closes while having no weeds and is long in persistent period, and one-time use of the herbicide can ensure that the wholeseedling raising period of the winter wheat seedling field is not harmed by the weeds, to ensure the quality of winter wheat seedlings and the yield of late-stage winter wheat.

Description

technical field

[0001] The invention relates to pesticide products, in particular to a winter wheat field herbicide and a preparation method thereof. Background technique

[0002] Herbicides refer to agents that can completely or selectively kill weeds, also known as herbicides, a class of substances used to eliminate or inhibit plant growth. Among them, sodium chlorate, borax, arsenate, and trichloroacetic acid have a deadly effect on any kind of plants, and their effects are affected by three factors: herbicides, plants, and environmental conditions. According to the function, it can be divided into killing and selective herbicides. Most of the selective herbicides, especially the derivatives of nitrophenol, chlorophenol and carbamic acid, are effective.

[0003] Compared with insecticides and fungicides, herbicides have higher requirements for the use of technology. Improper use of insecticides and fungicides may only affect the control effect, while improper use of herb...

Examples

preparation example 1

[0029] 20g of Cyanococcus, 8g of diatomaceous earth and 100g of water were mixed to obtain a mixed solution N; the mixed solution N was centrifuged (centrifugal speed was 2000 rpm, and the centrifugation time was 5min), and the precipitate was removed after filtration. Obtain the concentrated solution M; dry the concentrated solution M (the drying temperature is 50° C., and the drying time is 30 minutes), and crush to obtain a carrier powder (particle size is 1 mm); 100 g of the carrier powder , 50g Abamectin and 800g ethanol (concentration is 60% by volume) mixed to obtain the described slow-release agent and denote as W1.

preparation example 2

[0031] Mix 25g of oscillating algae, 12g of diatomaceous earth and 100g of water to obtain a mixed solution N; the mixed solution N is centrifuged (the centrifugal speed is 3000 rpm, and the centrifugal time is 8min), and the precipitate is removed after filtration to obtain Concentrated solution M; dry the concentrated solution M (drying temperature is 70°C, drying time is 50min), and crush to obtain carrier powder (particle size is 5mm); 100g of the carrier powder, 60g Abamectin and 800g ethanol (concentration is 70% by volume) mixed to obtain said = slow-release agent, W2.

preparation example 3

[0033] 22g of Nostoc, 10g of diatomaceous earth and 100g of water were mixed to obtain a mixed solution N; the mixed solution N was centrifuged (centrifugation speed was 2500 rpm, and the centrifugation time was 7min), and the precipitate was removed after filtration to obtain Concentrated solution M; dry the concentrated solution M (drying temperature is 60°C, drying time is 40min), and crush to obtain carrier powder (particle size: 3mm); 100g of the carrier powder, 55g of abamectin and 750g of ethanol (concentration: 65% by volume) were mixed to obtain the slow-release agent W3.

technical field

[0001] The invention relates to pesticide products, in particular to a winter wheat field herbicide and a preparation method thereof. Background technique

[0002] Herbicides refer to agents that can completely or selectively kill weeds, also known as herbicides, a class of substances used to eliminate or inhibit plant growth. Among them, sodium chlorate, borax, arsenate, and trichloroacetic acid have a deadly effect on any kind of plants, and their effects are affected by three factors: herbicides, plants, and environmental conditions. According to the function, it can be divided into killing and selective herbicides. Most of the selective herbicides, especially the derivatives of nitrophenol, chlorophenol and carbamic acid, are effective.

[0003] Compared with insecticides and fungicides, herbicides have higher requirements for the use of technology. Improper use of insecticides and fungicides may only affect the control effect, while improper use of herb...

Examples

preparation example 1

[0029] 20g of Cyanococcus, 8g of diatomaceous earth and 100g of water were mixed to obtain a mixed solution N; the mixed solution N was centrifuged (centrifugal speed was 2000 rpm, and the centrifugation time was 5min), and the precipitate was removed after filtration. Obtain the concentrated solution M; dry the concentrated solution M (the drying temperature is 50° C., and the drying time is 30 minutes), and crush to obtain a carrier powder (particle size is 1 mm); 100 g of the carrier powder , 50g Abamectin and 800g ethanol (concentration is 60% by volume) mixed to obtain the described slow-release agent and denote as W1.

preparation example 2

[0031] Mix 25g of oscillating algae, 12g of diatomaceous earth and 100g of water to obtain a mixed solution N; the mixed solution N is centrifuged (the centrifugal speed is 3000 rpm, and the centrifugal time is 8min), and the precipitate is removed after filtration to obtain Concentrated solution M; dry the concentrated solution M (drying temperature is 70°C, drying time is 50min), and crush to obtain carrier powder (particle size is 5mm); 100g of the carrier powder, 60g Abamectin and 800g ethanol (concentration is 70% by volume) mixed to obtain said = slow-release agent, W2.

preparation example 3

[0033] 22g of Nostoc, 10g of diatomaceous earth and 100g of water were mixed to obtain a mixed solution N; the mixed solution N was centrifuged (centrifugation speed was 2500 rpm, and the centrifugation time was 7min), and the precipitate was removed after filtration to obtain Concentrated solution M; dry the concentrated solution M (drying temperature is 60°C, drying time is 40min), and crush to obtain carrier powder (particle size: 3mm); 100g of the carrier powder, 55g of abamectin and 750g of ethanol (concentration: 65% by volume) were mixed to obtain the slow-release agent W3.

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