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Weeding composition prepared from pyribenzoxim and bentazone

A technology for pyrimidine and herbicidal composition, which is applied in the field of pesticide and herbicidal composition, can solve the problems of inability to solve the problems of farmland weeds, weeds producing drug resistance, complex grass phase, etc., and achieves improved effect, reduced dosage and production technology simple effect

Inactive Publication Date: 2016-06-08
湖南农大海特农化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Large-scale use of a single herbicide species quickly leads to resistance in weeds
At the same time, when weeds occur in farmland, the grass phase is complex, grass weeds, broad-leaved weeds, and sedge weeds are mixed, and the use of a single herbicide cannot solve the weeds in the farmland, and all of them will show some defects and limitations

Method used

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  • Weeding composition prepared from pyribenzoxim and bentazone
  • Weeding composition prepared from pyribenzoxim and bentazone
  • Weeding composition prepared from pyribenzoxim and bentazone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Determination of the combined effect of saflufenacil and bentazone.

[0019] Test materials: Monochoria avaginalis, Fimbristylis aestivalis (Retz.) Vahl, Echinochloacrus galli (L.) Beaw Setaria, Leersia hexandra.

[0020] Test method: respectively add saflufenacil technical substance and bentazone technical substance into acetone and fully dissolve them, then dilute them with 0.1% Tween 80 aqueous solution to prepare single-dose mother solutions respectively, and set series ratios according to the purpose of mixing, each formulation than set 5 concentration gradients. Select representative sensitive weed seeds according to the single-dose herbicidal spectrum, and cultivate them until 3 leaves for later use. After the stems and leaves of the weeds with the selection number were treated, they were placed in a light incubator and cultivated at room temperature for 20 days, and the control effect (fresh weight) was calculated.

[0021] Investigation method: Aft...

Embodiment 2

[0036] Example 2: Preparation Example.

[0037] 30% saflufenacil · bentazone suspension concentrate: saflufenacil 2%, bentazone 28%, Nongru 1601# 15%, LS5%, alkylphenol polyoxyethylene ether 4%, polycarboxylate 3%, bentonite 3%, xanthan gum 0.2%, sodium sorbitol 0.3%, organic silicon 0.4%, propylene glycol 5%, and deionized water to make up to 100%. The above formula is pre-pulverized according to the proportion, then added to a sand mill for grinding, and then prepared after high-shear mixing to prepare a 30% saflufenacil-benzazone suspension concentrate.

[0038] 24% saflufenacil · bentazone dispersible oil suspension concentrate: saflufenacil 3%, bentazone 21%, calcium dodecylbenzene sulfonate 5%, sodium butylnaphthalene sulfonate 3%, poly Carboxylate 5%, sodium lignosulfonate 4%, epoxy soybean oil 3%, methyl oleate up to 100%. The above-mentioned materials are pre-crushed in proportion, then added to a sand mill for grinding, and prepared after high-shear mixing to prepa...

Embodiment 3

[0040] Embodiment 3: field application embodiment.

[0041] Test agent and treatment:

[0042] (1) 4% saflufenacil · 40% bentazone microemulsion, dosage 100ga.i. / ha (1#);

[0043] (2) 4% saflufenacil · 40% bentazone microemulsion, dosage 200ga.i. / ha (2#);

[0044] (3) 4% saflufenacil · 40% bentazone microemulsion, dosage 400ga.i. / ha (3#);

[0045] Control drug and dosage:

[0046] (4) 10% saflufenacil dispersible oil suspension concentrate, dosage 40ga.i. / ha (5#);

[0047] (5) 56% bentazone soluble powder, dosage 900ga.i. / ha (6#).

[0048] Application period: 12 days after rice seedling throwing, most grass weeds grow to 4 leaves, broad-leaved weeds grow to 4 leaves, and sedges grow to 5-7cm.

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Abstract

The invention discloses a weeding composition prepared from pyribenzoxim and bentazone. The weeding composition is prepared from the effective components of the pyribenzoxim and the bentazone, and the rest of pesticide adjuvants; the mass fraction ratio of the pyribenzoxim and the bentazone in the weeding composition is 1:5 - 1:80. The weeding composition can be prepared into a suspending agent, a dispersable oil suspending agent or microemulsion according to application needs, is used for preventing and removing annual weeds in a paddy field, and is obviously superior to various single agents in the effect of preventing and removing the annual weeds in the paddy field, the pesticide use amount is reduced, and the pesticide resistance of the weeds is delayed.

Description

technical field [0001] The invention relates to a pesticide and herbicide composition, the active ingredients of which are saflufenacil and bentazone, which are used for controlling annual weeds in paddy fields. Background technique [0002] Chemical weeding is one of the main means of controlling weeds in agriculture. Widespread use of a single herbicide species quickly leads to resistance in weeds. At the same time, when weeds occur in farmland, the grass phase is complex, grass weeds, broad-leaved weeds, and sedge weeds are mixed, and the use of a single herbicide cannot solve the weeds in the farmland, and all of them will show some defects and limitations. Mixing different types of herbicides has the advantages of broad herbicidal spectrum, improving the actual effect, delaying weed resistance, and saving time and labor. [0003] Saflufenacil, the chemical name is O-[2,6-bis(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoylbenzene(2-trifluoromethyl)formaldehyde oxime, pyrimidi...

Claims

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Application Information

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IPC IPC(8): A01N43/88A01N43/54A01P13/00A01G13/00
CPCA01N43/88A01G13/00A01N43/54
Inventor 陈佛祥邹勇谢石发康逢斌
Owner 湖南农大海特农化有限公司
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