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Biochemical synergistic weed killer composition

A synergistic and biochemical technology, applied in the fields of agricultural production and herbicide preparation, can solve the problems of poor selectivity of wet-inserted rice, achieve significant synergistic effect, reduce use cost, and improve the effect of weeding

Inactive Publication Date: 2016-05-11
JIANGSU DONGBAO AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This product has poor selectivity to wet-inserted rice when it is applied alone, but it has excellent selectivity to in-line rice when it is used together with chlorpyrifos

Method used

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  • Biochemical synergistic weed killer composition
  • Biochemical synergistic weed killer composition
  • Biochemical synergistic weed killer composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Prepare 45% pretilachlor · Sclerotinium sclerotium water dispersible granules.

[0016] formula:

[0017] Neat Sclerotinia 20%

[0018] Pretilachlor 25%

[0019] NNO (dispersant) 8%

[0020] Sodium dodecylbenzenesulfonate (wetting agent) 1%

[0021] Starch (binder) 1%

[0022] Ammonium sulfate (disintegrant) 2%

[0023] Light calcium carbonate (filler) 43%

[0024] Weigh the material according to the above weight ratio, stir and mix evenly, and then pulverize and granulate to obtain the product. The preparations made according to the above ratio are 40 g / mu, 60 g / mu, and 80 g / mu for cornfield crabgrass, barnyard grass , Amaranthus retroflexus and other weeds are more than 90% effective, better than single use, see the following table 1, 2, 3.

[0025] Table 145% neat Sclerotinia pretilachlor water dispersible granules control effect on paddy field weeds 20 days after medicine

[0026]

[0027] Table 245% neat Sclerotinia pretilachlor water dispersible granule...

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Abstract

The invention relates to a biochemical synergistic weed killer composition. The biochemical synergistic weed killer composition comprises effective constituents, auxiliaries and fillers. The effective constituents include sclerotium rolfsii and pretilachlor. The biochemical synergistic weed killer composition has the advantages that the two effective constituents, namely, the sclerotium rolfsii and the pretilachlor, are used with each other, accordingly, the biological weed killing performance of the sclerotium rolfsii which is a novel biological weed killer can be brought into play, fast-acting properties of the pretilachlor which is a chemical weed killer can be embodied, and weed killing effects can be improved; the most obvious synergistic effects can be realized by the sclerotium rolfsii and pretilachlor composition for preventing and killing diversified broad-leaf weeds and nutgrass flatsedge of dry and direct-seeded paddy rice; the service cost of the biochemical synergistic weed killer composition can be reduced, problems of high single-dosage service costs and poor low-dosage individual service effects of the sclerotium rolfsii and the pretilachlor at present can be solved, accordingly, prevention effects can be improved when the sclerotium rolfsii and the pretilachlor are used with each other, and the agricultural cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of agricultural production, in particular to the technical field of herbicide preparation. Background technique [0002] The annual economic loss caused by weed hazards in my country is more than 100 billion. The current means of controlling weeds mainly rely on the use of 100,000 tons of chemical herbicides because there are no biological herbicide products, and the area of ​​chemical herbicide use exceeds 1 billion mu. . As a result, a large number of chemical weeding has caused problems such as soil and water pollution, weed resistance, crop damage, and pesticide residues in agricultural products. Weed resistance alone leads to an annual increase of 10,000 tons of herbicide use, which intensifies the pressure of environmental pollution and reduces the weeding effect. Weed control in rice production is the most critical element in various light cultivation techniques. The anhydrous cover and alternating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/04A01P13/00A01N37/26
Inventor 孙红军南艳童振祥
Owner JIANGSU DONGBAO AGROCHEM
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