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Herbicide composition for sunflower field

A composition and sunflower technology, applied in the field of pesticides, can solve the problems of limited herbicidal spectrum, ineffective broad-leaved weeds, single control of grass weeds, etc. Effect

Inactive Publication Date: 2019-03-19
ZHEJIANG TIANFENG BIOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the available information, only two chemical herbicides with active ingredients, metolachlor-sperm and haloxyfop-pam, have been registered for use in sunflower fields, and only isopropyl-sperm Although alachlor and metolachlor can effectively control annual grass weeds such as barnyardgrass and crabgrass and some small-seeded broad-leaved weeds, the herbicidal spectrum is relatively limited, and it is ineffective against most broad-leaved weeds
Conventional stem and leaf treatment herbicides such as high-efficiency haloxyfop-p-methyl and quizalofop-p-ethyl can only singlely control grass weeds in the sunflower field, but still cannot solve the problem of broad-leaved weeds and sedge weeds in the sunflower field. Prevention and control problems

Method used

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  • Herbicide composition for sunflower field
  • Herbicide composition for sunflower field
  • Herbicide composition for sunflower field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Indoor activity test of the mixed application of refined metolachlor, propargylflurafen and sulfentrazone against weeds.

[0030] The purpose of the test: through the greenhouse pot activity test to more clearly define the synergistic effect of the mixed use of metolachlor, propargyl and sulfentrazone on weeds, and further compare the compositions, as well as the composition and the single The herbicidal activity between agents is used to better illustrate the herbicidal composition of the present invention.

[0031] Test target: choose barnyard grass and nightshade as the test target.

[0032] Test agents: 98% S. metolachlor TC, 99.2% flutrachlor TC and 95% sulfentrachlor TC.

[0033] 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.

[0034] Culti...

Embodiment 1

[0047] Example 1: Suspoemulsion of 51% refined metolachlor, flutrachlor propargyl, and sulfentrazone (40:1:10)

[0048] 40 parts by weight of refined metolachlor, 1.5 parts by weight of emulsifier castor oil polyoxyethylene ether, and 2.5 parts by weight of emulsifier fatty alcohol polyoxyethylene ether were mixed to obtain an oil phase for use. 1 part by weight of flufentrazone propargyl, 10 parts by weight of sulfentrazone, 0.5 parts by weight of polyoxyethylene polyoxypropylene block polyether as a wetting agent, 1.5 parts by weight of phosphate ester as a dispersant, polymeric carboxylate polymer as a dispersant 2 parts by weight of matter, 0.05 parts by weight of xanthan gum, 0.2 parts by weight of sodium benzoate, 4 parts by weight of ethylene glycol, and water is added to 100. The above components are sheared and mixed at high speed with a shearing machine and sanded by a sand mill. Grind to get the mother liquor. In the process of high-speed shearing of the mother liq...

Embodiment 2

[0049] Example 2: 26% refined metolachlor. flutrachlor propargyl. sulfentrazone (20:1:5) suspoemulsion

[0050] 20 parts by weight of refined metolachlor, 3.5 parts by weight of emulsifier castor oil polyoxyethylene ether, and 1.8 parts by weight of emulsifier fatty alcohol polyoxyethylene ether were mixed to obtain an oil phase for use. 1 part by weight of flufentrazone propargyl, 5 parts by weight of sulfentrazone, 0.5 part by weight of polyoxyethylene polyoxypropylene block polyether as a wetting agent, 4.5 parts by weight of phosphate ester as a dispersant, polymeric carboxylate polymer as a dispersant 2.0 parts by weight of substance, 0.2 parts by weight of xanthan gum, 0.2 parts by weight of sodium benzoate, 4 parts by weight of ethylene glycol, and water is added to 100, and the above components are sheared and mixed at high speed with a shearing machine and sanded by a sand mill. Grind to get the mother liquor. In the process of high-speed shearing of the mother liquo...

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Abstract

The invention discloses a herbicide composition for a sunflower field. The herbicide composition contains three effective components including s-metolachlor, flumioxazin and sulfentrazone, wherein themass ratio of the three effective components is (1-60): (0.1-10): (1-50), and the sum of mass percentages of the three effective components in the composition is 1-80%. Compared with a single agent or a binary combination having the same effective components, the herbicide composition disclosed by the invention is obvious in synergistic effect and capable of effectively expanding a herbicide control spectrum. The herbicide composition disclosed by the invention is suitable for preventing and removing most of grassy and broadleaf weeds in the sunflower field and safe for sunflowers.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to a sunflower field herbicide composition. Background technique [0002] S-metolachlor is a high-efficiency, low-toxicity, low-residue selective pre-emergence herbicide, suitable for dryland crops, such as corn, soybean, peanut, sugarcane, and also for non-sandy Soil treatment of cotton, rapeseed, potato, onion, pepper, cabbage and other crops after sowing, before seedling or before transplanting, can control annual grass weeds, some dicotyledonous weeds and annual sedge weeds, such as barnyardgrass , crabgrass, brachiaria, goosegrass, foxtail, shaped sedge, broken rice sedge, shepherd's purse, amaranth, commelina and Polygonum etc. [0003] Flumioxazin belongs to N-phenylimide chemical herbicides. Its mode of action is to inhibit protoporphyrinogen oxidase, through the control of chlorophyll synthesis pathway, resulting in impaired synthesis of chlorophyll and carotenoids, ca...

Claims

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Application Information

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IPC IPC(8): A01N37/22A01N43/84A01N43/653A01P13/00
CPCA01N37/22A01N43/653A01N43/84
Inventor 徐雅飞陈丰喜康家树曹轩
Owner ZHEJIANG TIANFENG BIOLOGICAL SCI
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