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Herbicide with broad-spectrum herbicidal action

A herbicide and broad-spectrum technology, which is applied in the field of combined herbicide preparation, can solve the problems of enhancement, long service life of alachlor, and increased control cost, and achieve improved control effect, broad-spectrum and synergistic effect. The effect of increased control costs

Inactive Publication Date: 2019-01-15
JIANGSU DONGBAO AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, alachlor has been used for a long time, and the weed resistance has been significantly enhanced in some areas, and the cost of control has also increased significantly

Method used

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  • Herbicide with broad-spectrum herbicidal action
  • Herbicide with broad-spectrum herbicidal action
  • Herbicide with broad-spectrum herbicidal action

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: Preparation of 20% Benthiazone-Alachlor Suspension Concentrate.

[0016] Mass percentage of each component:

[0017] Benthiazone 5%

[0018] Alachlor 15%

[0019] Nonylphenol ethoxylate (NP-9) (dispersion wetting agent) 8%

[0020] Propylene glycol (antifreeze) 1%

[0021] Xanthan gum (thickener) 1%

[0022] Silicone defoamer (SAG612) 2%

[0023] Water (filler) 68%

[0024] Weigh the materials according to the above weight ratio, stir and mix them evenly, and then sand them with a sand mill to obtain the preparations prepared according to the above ratio. , Amaranthus retroflexus and other weeds have a control effect of more than 90%. At the same time, when the amount of active ingredients used is reduced, it is also better than the two products of thiafentrazone and alachlor. The following tables illustrate the products of the present invention. The efficiency is more significant.

[0025] Table 1 Control of crabgrass, barnyardgrass, retroflexus, etc...

Embodiment 2

[0034] Example 2: Preparation of 20% benzothiazone·alachlor wettable powder.

[0035] Mass percentage of each component:

[0036] Benthiazone 8%

[0037] Alachlor 12%

[0038] NNO (dispersant) 3%

[0039] Sodium lignosulfonate (dispersant) 7%

[0040] Sodium alkylbenzene sulfonate (dispersant) 1%

[0041] Silica (filler) 69%

[0042] The control effects of 40 g / mu, 60 g / mu, and 80 g / mu of the preparations formulated according to the above ratio on weeds such as corn crabgrass, barnyard grass, and retroverted amaranth are all above 90%. It is also better than the single use of the two products of thiafentrazone and alachlor, and the following tables illustrate that the synergistic effect of the product of the present invention is more significant.

[0043] Table 4 Control effect of 20% thiafentrazone·alachlor wettable powder on annual weeds in corn field (%)

[0044] (Plant prevention results 45 days after application)

[0045]

[0046] Table 5 Control effect of 20% ...

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PUM

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Abstract

The invention discloses a herbicide with a broad-spectrum herbicidal action, and relates to the technical field of preparation of combined herbicides, and the herbicide comprises active ingredients benzothiazole oxadiazon and alachlor, and has a product dosage form of a suspension or wettable powder. The composition herbicide comprises the following raw materials by weight: 1 to 25% of the benzothiazole oxadiazon, 1-25% of the alachlor, 2 to 25% of an auxiliary agent, and 25 to 96% of a filler. The herbicide exhibits high-efficiency, broad-spectrum herbicidal performances and is mainly used inthe control of annual weeds in corn fields without adverse effects on crops.

Description

technical field [0001] The invention relates to the technical field of preparation of combined herbicides. Background technique [0002] Corn is the main food crop in my country, and the country's corn sown area has been stable at about 450 million mu for many years. Corn planting is widely distributed, and there are two planting methods of spring corn and summer corn. The weed community in the field varies with the local natural conditions and farming characteristics, and can be roughly divided into six weed damage areas: the northeast spring corn field weed damage area, the Huanghuai sea summer corn field weed damage area. Weeds are common in corn fields, and the main weeds are crabgrass, barnyardgrass, foxtail, goosegrass, amaranth, purslane, amaranth, Cyperus rotundum, etc. [0003] At present, chemical herbicides can be divided into killing herbicides and selective herbicides, and selective herbicides can be divided into soil treatment agents and stem and leaf treatme...

Claims

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Application Information

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IPC IPC(8): A01N37/22A01N43/80A01P13/00
CPCA01N37/22A01N43/80
Inventor 孙红军南艳周颖童正强徐国香杭丛莉
Owner JIANGSU DONGBAO AGROCHEM
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