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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., to achieve good synergy, delay production and progress, and reduce drug costs.

Inactive Publication Date: 2021-06-11
NUTRICHEM LAB CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the formation speed of drug resistance is affected by factors such as the characteristics of herbicides, the biological characteristics of weeds, and cultivation methods.
[0005] Herbicide resistance is a global challenge

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[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 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.

[0045] 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.

[0046] 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%.

[0047] Pre...

Embodiment 1

[0070] The synergistic effect of pyraconazole and chlorotoluron on common gramineous weeds and broad-leaved weeds will be illustrated below through indoor toxicity testing.

[0071] Test method: the test adopts the greenhouse potting method, and the seeds of foxtail (grass weed), crabgrass (grass weed), velvetleaf (broad-leaved weed) and small Chenopodium (broad-leaved weed) are sown on-demand respectively. In small flowerpots 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 flowerpots, and pour off the excess water in the tray after the water completely soaks the nutrient soil. Soil spraying was carried out the next day. The stems and leaves were sprayed with ASS-5 walking spray tower. After the leaves were dried, they were transferred to the greenhouse for further cultivation and observation. After 20 days, the herbicidal effect of each treatment wa...

Embodiment 120

[0085] Formulation Example 1 20% by weight metazazole sulfone·chlorotoluron suspension concentrate

[0086] Recipe: 100g of metazafensulfone, 100g of chlorotoluron, 30g of sodium lignosulfonate (dispersant), 50g of sorbitan fatty acid ester polyoxyethylene ether (wetting agent), 100g of ethylene glycol (antifreeze) , polyvinyl alcohol (thickener) 60g, silicone defoamer 10g, water to make up to 1000g;

[0087]Preparation method: using water as the medium, dissolve the above-mentioned weight of metazazole sulfone, chlorotoluron, sodium lignosulfonate, sorbitan fatty acid ester polyoxyethylene ether, ethylene glycol, polyvinyl alcohol, and organic silicon The foaming agent and water are put into a shearing kettle, and after being uniformly sheared, they are put into a sand milling kettle and ground to obtain a suspending agent containing 20% ​​by weight of an active ingredient.

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Abstract

The invention relates to the field of herbicides, and discloses a herbicide composition being wide in herbicide controlling spectrum and remarkable in weed control effect, and application thereof. The active ingredients of the herbicide composition disclosed by the invention contain pyroxasulfone and chlortoluron. The herbicide composition provided by the invention shows an excellent synergistic effect, and the use dosage of pesticides is reduced, so that the pesticide use cost of farmers and the influence degree 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] Due to the long-term single and unreasonable use of herbicides in large quantities, the control effect of herbicides has been significantly reduced, and it has also caused the occurrence of resistant weeds. Herbicide resistance has become a global challenge. [0003] Generally speaking, weed resistance occurs when some drug-resistant weeds or resistant genetic types are retained and can reproduce to form a larger population. Barnyardgrass, for example, can produce 700,000 seeds per plant, and it spreads very efficiently over large areas. From the perspective of field manifestations, due to the large-scale or long-term continuous use of one or the same type of herbicides, the sensitivity of the sensitive weeds to the herbicides is reduced, so that it is difficult to achieve the control effect with co...

Claims

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Application Information

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IPC IPC(8): A01N47/30A01N43/80A01P13/00
CPCA01N47/30A01N43/80
Inventor 孙运迎占玉萍薛进春廖远霞李丹张聪路军乔振
Owner NUTRICHEM LAB CO LTD
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