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herbicide

A herbicide and adjuvant technology, applied in the directions of herbicides and algaecides, biocides, biocides, etc., can solve the problems of farmers' wrong choice of herbicides, corn growth damage, etc., and achieve excellent control effect, crops Safe and effective

Active Publication Date: 2015-10-07
JIANGSU DONGBAO AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Different ingredients and different varieties of herbicides have different herbicidal spectrum, adaptability and sensitivity to crops. However, there are many kinds of herbicides for cornfields on the market, and farmers often don't know how to choose. Many farmers choose and use herbicides by mistake. agent, causing unnecessary damage to corn growth

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: Preparation of 30% Benthiazone-Atrazine Suspension Concentrate

[0014] Benthiazone 4%

[0015] Atrazine 26%

[0016] Nonylphenol ethoxylate (NP-9) (dispersion wetting agent) 8%

[0017] Propylene glycol (antifreeze) 1%

[0018] Xanthan gum (thickener) 1%

[0019] Silicone defoamer (SAG612) 2%

[0020] Water (filler) 58%

[0021] Weigh the materials according to the above weight ratio, stir and mix them evenly, and grind them with a sand mill to obtain the product.

[0022] The above products are used to control weeds such as crabgrass, barnyardgrass, and amaranthus in cornfields at an application rate of 30 ml / mu, 40 ml / mu, and 50 ml / mu. The control effect results are all above 90%, excellent for single use.

[0023] Table 1 Density control effect of 30% thiafentrazone·atrazine SC on weeds such as crabgrass, barnyardgrass, and retroverted amaranthus in cornfields on the 20th day

[0024]

[0025] Table 2 Density control effect of 30% fenthia...

Embodiment 2

[0029] Example 2: Preparation of 20% benzothiazone-atrazine wettable powder

[0030] Benthiazone 8%

[0031] Atrazine 12%

[0032] NNO (dispersant) 3%

[0033] Sodium lignosulfonate (dispersant) 7%

[0034] Sodium alkylbenzene sulfonate (dispersant) 1%

[0035] Silica (filler) 69%

[0036] Weigh the materials according to the above weight ratio, stir and mix them evenly, and grind them with a sand mill to obtain the product.

[0037] The above products are used to control weeds such as corn crabgrass, barnyardgrass, and amaranthus at the application rate of 10 g / mu, 15 g / mu, and 20 g / mu. The control effect results are all above 90%, and it is also better than the two products of thiafentrazone and atrazine alone.

[0038] Table 4 Control effect of 20% fenthiazone-atrazine wettable powder on annual weeds in cornfield (%)—control effect on plants 45 days after application

[0039]

[0040] Table 5 Control effect of 20% fenthiazone-atrazine wettable powder on annual wee...

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Abstract

The herbicide relates to the technical field of pesticide production, the active ingredients are composed of thiafentrazone and atrazine, and the product dosage form is suspension concentrate or wettable powder. The composition proportion of herbicide raw materials by weight is 1-25% of benzothiazone, 1-40% of atrazine, 2-25% of adjuvants and 10-96% of fillers. The invention exhibits high-efficiency and broad-spectrum herbicidal performance, is mainly applied in the control of annual weeds in corn fields, and has no adverse effects on crops.

Description

technical field [0001] The present invention relates to a method for the production of 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. 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 treatment agents, and ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/80A01P13/00A01N43/70
Inventor 孙红军杨光富南艳肖世健童振祥
Owner JIANGSU DONGBAO AGROCHEM
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