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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 the effect of delaying the emergence and progress of single-dose resistance, reducing the cost of drug use, and expanding the herbicidal spectrum.

Inactive Publication Date: 2019-02-26
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

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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%.

[0044] Pre...

Embodiment 1

[0067] The synergistic effect of furansulcotrione and toxachlor on common gramineous weeds and broad-leaved weeds will be illustrated below through indoor toxicity testing.

[0068] 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 water treatment 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 treatment was investigated. ...

Embodiment 1

[0082] Formulation Example 1 Aqueous Suspension Containing 20.1% by Weight of Active Ingredient

[0083] Formula: 1g of furansulfotrione, 200g of toxachlor, 100g of benzylnaphthalenesulfonate formaldehyde condensate (dispersant), 200g of urea (antifreeze), 10g of xanthan gum (thickener), 10g of tributyl phosphate (defoamer) agent) 20g, water to make up to 1000g;

[0084] Preparation method: Using water as the medium, add the above-mentioned weight of furansulcotrione, toxachlor, benzylnaphthalenesulfonic acid formaldehyde condensate, urea, xanthan gum, tributyl phosphate, and water into the shearing kettle, and shear evenly Then put it into a sand mill and grind it finely to obtain a suspending agent containing 20.1% by weight of active ingredients.

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Abstract

The invention relates to the field of herbicides, and discloses herbicide composition with wide weed controlling spectrum and remarkable weed control effect and an application of the herbicide composition. The herbicide composition contains active ingredients of tefuryltrione and propachlor. The herbicide composition shows excellent synergism and reduces dosage of pesticides, so that the dosage cost of farmers and the degree of influence on the environment are reduced.

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): A01N43/08A01N37/22A01P13/00
CPCA01N37/22A01N43/08
Inventor 占玉萍张聪路军李丹
Owner NUTRICHEM LAB CO LTD