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Herbicide composition and application thereof

A composition and herbicide technology, applied in the directions of herbicides and algaecides, applications, biocides, etc., can solve the problem of late, generally 15 to 25 days after sowing, can be produced, increase the dosage, and have a large base of weeds. and other problems, to achieve good control effect, reduce drug costs, and expand the effect of herbicidal spectrum.

Inactive Publication Date: 2019-03-29
NUTRICHEM LAB CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are problems: the first is closed treatment, because different weeds have different emergence peaks, such as barnyardgrass and Qianjinzi in grasses are the peaks of unearthed 3-10 days after sowing, and sedges and broad-leaved weeds The weeding period is late, and it usually takes 15 to 25 days after sowing to emerge. It is difficult to take care of the closed application period, and often requires secondary application: the second is stem and leaf treatment. Due to the large number of weeds, the grass phase is complex, and the age of the grass is different. The treatment of stems and leaves needs to increase the dosage, and the effect is poor
In actual use, it often takes 2-3 times of medication to solve all the weeds, which is time-consuming and labor-intensive

Method used

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  • Herbicide composition and application thereof
  • Herbicide composition and application thereof
  • Herbicide composition and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0041] The preparation method of the above-mentioned emulsifiable concentrate preparation may include, for example, mixing and stirring each active component, solvent, co-solvent and emulsifier to form a uniform transparent oil phase to obtain an emulsifiable concentrate preparation.

[0042] Preferably, the composition of the emulsifiable concentrate preparation is 1-95% of active ingredient, 0-20% of co-solvent, 1-30% of emulsifier, and 100% of solvent.

[0043] The preparation method of the above-mentioned emulsifiable concentrate preparation may include, for example, mixing and stirring each active component, solvent, co-solvent and emulsifier to form a uniform transparent oil phase to obtain an emulsifiable concentrate preparation.

[0044] Preferably, the aqueous emulsion or microemulsion consists of 1-95% active ingredient, 1-30% emulsifier, 0-30% co-solvent, 1-30% solvent, and 0-10% antifreeze by weight percentage , Thickener 0-10%, water make up to 100%.

[0045] Pre...

Embodiment 1

[0069] The synergistic effect of furansultrione, bensulfuron-methyl and amide herbicide (alachlor) on common grass weeds and broad-leaved weeds will be illustrated below through indoor toxicity test.

[0070] Test method: the test adopts the greenhouse potting method, and sows the seeds of barnyardgrass (grass weed), centipeda (grass weed), bermudagrass (broad-leaved weed) and snakehead sausage (broad-leaved weed) respectively In small flowerpots filled with 3 / 5 culture soil (field soil: nutrient soil: vermiculite = 3:1:1), sow 6×6 seeds in each pot, and cover with 1-2 mm of soil after sowing. Add water to the tray with small flower pots, and pour off the excess water in the tray after the water completely soaks the culture soil. 24 hours after sowing, the soil was sprayed with ASS-5 walking spray tower, and clear water was set as a blank control, and then transferred to the greenhouse to continue cultivation and observation. After 20 days, the fresh weight rate of each treatm...

Embodiment 130

[0084] Formulation Example 1 30% by weight furansultrione·bensulfuron-methyl·alachlor suspension concentrate

[0085] Formula: 100g furansulcotrione, 100g bensulfuron-methyl, 100g alachlor, sodium lignosulfonate (dispersant) 30g, sorbitan fatty acid ester polyoxyethylene ether (wetting agent) 50g, ethylene glycol Alcohol (antifreeze) 100g, polyvinyl alcohol (thickener) 60g, silicone defoamer 10g, water to 1000g;

[0086] Preparation method: using water as the medium, mix the above-mentioned weight of furansultrione, bensulfuron-methyl, alachlor, sodium lignosulfonate, sorbitan fatty acid ester polyoxyethylene ether, ethylene glycol, polyethylene Alcohol, silicone defoamer, and water are added into a shearing kettle, sheared evenly, and then put into a sand milling kettle to grind finely to obtain a suspending agent containing 30% by weight of active ingredients.

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Abstract

The invention relates to the field of herbicides, and discloses a herbicide composition which is wide in weed controlling spectrum and remarkable in weed control effect, and application of the herbicide composition. The herbicide composition provided by the invention is prepared from the following active components: tefuryltrione, bensulfuron methyl and amide herbicides. The herbicide compositionprovided by the invention shows a very good synergistic effect and reduces the consumption of pesticide, thus lowering the pesticide cost of farmers and reducing the environmental impact degree.

Description

technical field [0001] The invention belongs to the field of herbicides, and in particular relates to a herbicide composition and its application. Background technique [0002] Herbicide resistance is a global challenge. At present, the effective control methods for resistant weeds are mainly adopted: 1. Mixed use of herbicides with different action mechanisms to achieve the purpose of effectively controlling weeds and delaying the development of resistance; Closed stage treatment to achieve the purpose of effectively controlling weeds and reducing the base number of weeds. In the prior art, in order to prevent and eliminate grass weeds, broadleaf weeds and sedge weeds in paddy fields and effectively solve the problem of resistant weeds, the above two weed control methods are used. But there are problems: the first is closed treatment, because different weeds have different emergence peaks, such as barnyardgrass and Qianjinzi in grasses are the peaks of unearthed 3-10 days...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/08A01N47/36A01N37/26A01N37/22A01P13/00
CPCA01N37/22A01N37/26A01N43/08A01N47/36
Inventor 路军陈亚红孙运迎廖远霞
Owner NUTRICHEM LAB CO LTD