Herbicide for winter wheat field and preparation method thereof

A herbicide and winter wheat technology, applied in herbicides and algicides, botanical equipment and methods, biocides, etc., can solve the problems of dicotyledonous crop phytotoxicity, high dosage, and changes in weed communities

Inactive Publication Date: 2018-12-14
WUHU FOMAN BIOPHARMA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, if the sulfonylurea herbicides tribenuron-methyl and bensulfuron-methyl are used too high or too late, they will cause phytotoxicity to subsequent crops such as peanuts and soybeans.
Phenoxycarboxylic acid herbicides 2,4-D-Butyl Ester, Dimethyltetrachloride Sodium Salt Excessive dosage and improper application can easily cause crop damage and drift, which can cause damage to nearby dicotyledonous crops
In addition, if a single herbicide is used for long-term control, the number of sensi

Method used

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  • Herbicide for winter wheat field and preparation method thereof
  • Herbicide for winter wheat field and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Preparation Example 1

[0029] Mix 20 g of cyanococcus, 8 g of diatomaceous earth and 100 g of water to obtain a mixed solution N; subject the mixed solution N to centrifugation (centrifugation speed is 2000 rpm, centrifugation time is 5 min), and the precipitate is removed after filtration, Obtain a concentrated liquid M; dry the concentrated liquid M (the drying temperature is 50° C., and the drying time is 30 min) and crush to obtain a carrier powder (particle size of 1 mm); 100 g of the carrier powder , 50g of abamectin and 800g of ethanol (concentration of 60% by volume) are mixed to obtain the sustained-release agent and denoted as W1.

Example Embodiment

[0030] Preparation Example 2

[0031] Mix 25g oscillating algae, 12g diatomaceous earth and 100g water to obtain a mixed solution N; subject the mixed solution N to centrifugation (the centrifugal speed is 3000 rpm, the centrifugal time is 8 min), and the precipitate is removed after filtration to obtain Concentrated liquid M; drying the concentrated liquid M (drying temperature is 70 ℃, drying time is 50 min), crushed to obtain carrier powder (particle size 5mm); 100g of the carrier powder, 60 g of abamectin and 800 g of ethanol (with a concentration of 70% by volume) are mixed to obtain the = sustained release agent, W2.

Example Embodiment

[0032] Preparation Example 3

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

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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...

Claims

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Application Information

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IPC IPC(8): A01N43/40A01N37/36A01N43/80A01N37/26A01N43/70A01N47/36A01P13/00
CPCA01N43/40A01N37/26A01N37/36A01N43/70A01N43/80A01N47/36
Inventor 张慈铭
Owner WUHU FOMAN BIOPHARMA CO LTD
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