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Herbicide composition for sorghum fields and coix seed fields

A herbicidal composition and sorghum field technology, applied in the field of pesticides, can solve the problems of poor herbicidal spectrum and high pesticide components, and achieve the effects of reducing environmental pollution, reducing costs, and speeding up weeding

Active Publication Date: 2016-06-15
ZHEJIANG TIANFENG BIOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(3) When atrazine, quinclorac and bentazone are used alone, there are problems such as high pesticide content, not wide herbicidal spectrum, and the impact of pesticide residues on the safety of subsequent crops; (4) for sorghum fields, The post-emergence weeds in barley fields are complex, and malignant weeds and resistant weeds are difficult to control. A compound herbicide has been developed with high herbicidal activity, which is safe for sorghum and barley and is environmentally friendly.

Method used

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  • Herbicide composition for sorghum fields and coix seed fields
  • Herbicide composition for sorghum fields and coix seed fields
  • Herbicide composition for sorghum fields and coix seed fields

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Formulation example 1: 54% atrazine. quinclorac. bentazone wettable powder

[0020] 20 parts by weight of atrazine, 14 parts by weight of quinclorac, 20 parts by weight of bentazone, 2 parts by weight of 4-hydroxycoumarin, 1.5 parts by weight of wetting agent pulling powder, 6 parts by weight of dispersant NNO, white 1.5 parts by weight of carbon black, and 100 parts by weight of kaolin. The above components were mixed uniformly and jet milled to obtain a 54% atrazine.quinclorac.benzazone wettable powder.

Embodiment 2

[0021] Formulation example 2: 75% atrazine. quinclorac. bentazone water dispersible granules

[0022] 30 parts by weight of atrazine, 20 parts by weight of quinclorac, 25 parts by weight of bentazone, 4 parts by weight of 4-hydroxycoumarin, 2 parts by weight of wetting agent AOS, 6 parts by weight of dispersant D425, ammonium sulfate 5 parts by weight, the soluble starch is replenished to 100 parts by weight. The above components are uniformly mixed, then added with water, kneaded, extruded, granulated and dried to obtain 75% atrazine.quinclorac.benzazone water dispersible granules.

[0023] Preparation Example 3: 30% atrazine. quinclorac. bentazone suspension concentrate.

[0024] Atrazine 12 parts by weight, quinclorac 8 parts by weight, bentazone 10 parts by weight, 4-hydroxycoumarin 1 part by weight, 1 part by weight of wetting agent BC / 10, 3 parts by weight of cypress Di dispersant 14105, 0.5 parts by weight of xanthan gum, 1 part by weight of magnesium aluminum silicat...

Embodiment 1

[0025] Bioassay Example 1: Indoor Activity Test of Atrazine-Quinclorac-Benzazone Compound

[0026] The above-mentioned herbicide composition is subjected to a greenhouse pot activity determination test, and the herbicidal activity between the compositions and between the composition and a single agent is compared to determine the optimum proportion range of the composition.

[0027] Targets for testing: hemostatic crabgrass, golden foxtail, crushed rice sedge and dandelion, all of which were collected and preserved in the field.

[0028] Test medicament and preparation: Weigh a certain amount of the original drug, choose a suitable organic solvent to dissolve it to make a mother liquor, and dilute it with distilled water containing 0.1% Tween-80 to make a test dose according to the set dose for treatment.

[0029] Test single dose and dose setting: Atrazine (No. A): 540, 720, 1080ga.i / hm2 (No. A1~A3 respectively); quinclorac (No. B): 337.5, 450, and 675ga.i / hm2 (numbers B1~B...

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Abstract

The invention relates to an herbicide composition for sorghum fields and coix seed fields. The composition has active ingredients, which comprise three substances including atrazine, quinclorac and bentazone; 4-hydroxycoumarin is used as a safener. The herbicide composition is suitable for post-seedling weeding in sorghum fields and coix seed fields, and can effectively control herbicide-resistant barnyard grass in sorghum fields and coix seed fields, Setaria glauca, Leptochloa panacea, Digitaria ischaemum, Cyperus iria and dandelion. The herbicide composition is very safe for sorghum and coix seeds, and has enormous economic benefits and social benefits.

Description

technical field [0001] The invention relates to a herbicidal composition for post-emergence stem and leaf treatment of sorghum and barley fields, which mainly consists of four components: atrazine, quinclorac, bentazone and a safener 4-hydroxycoumarin. The herbicidal composition can be used for comprehensive control of most gramineous weeds, broad-leaved weeds and sedge weeds after emergence in sorghum fields and job's tears fields, and belongs to the technical field of pesticides. Background technique [0002] Atrazine, 2-chloro-4-diethylamino-6-isopropylamino-1,3,5-triazine, systemic selective pre-emergence and post-emergence herbicide, mainly through plant roots It absorbs and conducts upwards, inhibits the photosynthesis of plants and makes them die. It has a wide herbicidal spectrum and can control a variety of annual grasses and broad-leaved weeds, such as crabgrass, barnyardgrass, foxtail, sedge, sedge, Polygonum, Chenopodium, cruciferous, leguminous weeds, etc. . ...

Claims

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Application Information

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IPC IPC(8): A01N43/88A01N43/70A01N43/42A01P13/00
CPCA01N43/42A01N43/70A01N43/88A01N2300/00
Inventor 陈丰喜范伟赠徐雅飞康家树
Owner ZHEJIANG TIANFENG BIOLOGICAL SCI
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