A kind of herbicidal composition and preparation thereof

A herbicidal composition and herbicide technology are applied in the directions of herbicides, algicides, biocides, animal repellents, etc., and can solve problems such as increasing farmers' planting costs, rapid weed germination, and adverse environmental effects.

Active Publication Date: 2016-08-24
LIANBAO CROP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since pre-emergence herbicides are affected by climate factors, the effect cannot be guaranteed; post-emergence herbicides can control weeds in one growing season with one application, so the current market is mainly post-emergence herbicides
Commonly used post-emergence herbicides are mainly stem and leaf treatment herbicides, but in summer, the temperature is high, there is a lot of rain, and the weeds germinate quickly, so the weeding effect is not very good
Moreover, the long-term single use of many herbicides will cause weeds to develop resistance, and the herbicidal effect will decrease, which will increase the amount of pesticides applied, increase the cost of farmers' planting, and will also have adverse effects on the environment and bring a lot of inconvenience to farmers' cultivation.

Method used

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  • A kind of herbicidal composition and preparation thereof
  • A kind of herbicidal composition and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The preparation of embodiment 1 herbicide dispersible oil suspension concentrate

[0056] Take clopyrazosulfuron 5%, nicosulfuron 1%, butachlor 10%, alkylphenol polyoxyethylene ether formaldehyde condensate 12%, alkylbenzene sulfonate 10%, fatty alcohol polyoxyethylene ether 9%, 2% xanthan gum, 100% methyl oleate, stir evenly, shear for 1 hour, and grind with a sand mill until the fineness D (90) is less than or equal to 5 μm, that is, 16% chloropyrazine Long · nicosulfuron · butachlor dispersible oil suspension concentrate.

Embodiment 2

[0057] The preparation of embodiment 2 herbicide dispersible oil suspension concentrate

[0058] Take clopyrazosulfuron 35%, nicosulfuron 4%, butachlor 25%, alkylphenol polyoxyethylene ether formaldehyde condensate 9%, fatty alcohol polyoxyethylene sulfate 5%, alkyl polyoxyethylene Ether 5%, organic bentonite 0.5%, soybean oil supplement 100%, stir evenly, shear for 1 hour, and grind through a sand mill until the fineness D (90) is less than or equal to 5 μm, that is, 64% clopyrazosulfuron-methyl. Nicosulfuron-butachlor dispersible oil suspension concentrate.

Embodiment 3

[0059] The preparation of embodiment 3 herbicide water dispersible granules

[0060] Take clopyrazosulfuron 30%, nicosulfuron 2%, butachlor 22%, pull open powder 4%, calcium alkylbenzene sulfonate 3%, alkylphenol formaldehyde resin polyoxyethyl ether 2%, Fatty alcohol polyoxyethylene ether carboxylate 4%, white carbon black 3%, sodium bicarbonate 1%, sodium-based bentonite to make up to 100%, mix evenly, and get wettable powder after jet crushing, in 100kg wettable powder Add 26 kg of water and mix evenly, extrude to granulate, dry, and sieve to obtain 54% chlorpyrazosulfuron-nicotinesulfuron-butachlor water-dispersible granules.

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Abstract

The invention relates to the field of pesticide preparations, in particular to a weeding composition and a preparation thereof. The weeding composition consists of halosulfuron-methyl, nicosulfuron and butachlor. The weeding composition provided by the invention has an obvious synergistic effect compared with a single preparation; the weeding effect of a herbicide provided by the invention is obviously higher than that of any one single preparation in three components, a weed control spectrum is widened, and weeds with stronger drug resistance can also be effectively prevented and controlled; the weeding composition cannot produce phytotoxicity, is safe to corns and can be used for preventing and controlling the corn field weeds.

Description

technical field [0001] The invention relates to the field of pesticide preparations, in particular to a herbicidal composition and its preparation. Background technique [0002] Corn is one of the main food crops in northern my country. The planting area of ​​corn is about 300 million mu, distributed in about 24 provinces, cities and autonomous regions, mainly including Heilongjiang, Jilin, Liaoning, Hebei, Shandong, Shanxi, Henan, Shaanxi and Sichuan , Guizhou, Yunnan, Guangxi and other main provinces and districts. The annual output of corn reaches more than 100 million tons, accounting for 20% of the world's total output. However, weeds in corn fields are common and diverse, and weed damage can lead to severe yield reduction. Therefore, the use of herbicides in corn fields is very common. [0003] There are many varieties of corn herbicides, which can be divided into stem and leaf treatment herbicides and soil sealing treatment herbicides according to the application me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/36A01P13/00A01N37/26
Inventor 谢存明刘爱梅陈红武金果任松巧路静
Owner LIANBAO CROP TECH
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