Herbicidal compositions and its application

A herbicidal composition and the technology of the composition, applied in the direction of application, herbicide, algicide, biocide, etc., can solve the problem of low activity of grass weeds, achieve good control effect, and broad-spectrum herbicide effect

Active Publication Date: 2008-10-22
ADAMA HUIFENG (JIANGSU) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These herbicides are only limited to the control of broadleaf weeds in the field, and their activity against grassy weeds is very low

Method used

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  • Herbicidal compositions and its application
  • Herbicidal compositions and its application
  • Herbicidal compositions and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1. Preparation of water dispersible granules

[0029] When in the compound (b), R is H, and X is Br, the active ingredient mixture of 65 parts by weight (bromoxynil+15 parts by weight of ametryn), 4 parts by weight of polyvinyl alcohol, 6 parts by weight of sodium lauryl sulfate, 12 parts by weight of calcium lignosulfonate and 13 parts by weight of kaolin.

[0030] After the above ingredients were mixed and ground into a fine powder in a plug-type disc mill, the powder was granulated in a fluidized bed by spraying water as the granulating liquid.

Embodiment 2

[0031] Embodiment 2. Preparation of wettable powder

[0032] When in the compound (b), R is K, and X is I, 78 parts by weight of the active ingredient mixture (13 parts by weight of bromoxynil potassium salt+65 parts by weight of ametryn), 5 parts by weight of alkyl Naphthalene formaldehyde condensate sodium sulfonate, 6.5 parts by weight of sodium dodecylbenzenesulfonate, the glycerin of 0.2 parts by weight, 10.3 parts by weight of white carbon black are mixed, and through superfine pulverization, the granule reaches fineness requirement, The high-content dosage form is prepared by using a double-helix mixer and a coulter mixer for multiple times of mixing to make the product mix evenly.

[0033] When in compound (b), R is H, and X is when Br, the above wettable powder can also be obtained by the following method: 65 parts by weight of active ingredient mixture (29 parts by weight of ioxynil potassium salt+36 parts by weight of Ametraz), 4 parts by weight of sodium lignosulf...

Embodiment 3

[0034] Embodiment 3. preparation suspending agent

[0035] When compound (b), R is -C(O)-C 7 h 15 , when X is Br, the active mixture of 35 parts by weight (16 parts by weight of bromoxynil octanoate+25 parts by weight of ametryn), 11 parts by weight of sodium dodecylbenzenesulfonate, 7 parts by weight Parts of carboxymethyl cellulose, 2 parts by weight of propylene glycol and 45 parts by weight of water, through the main processes of mixing, stirring, sanding, etc. to prepare the mixture.

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Abstract

The invention discloses a weeding combination and contains two active components of a and b, a is the compound of atrazine (N-2-ethylamino-N-4-isopropylamino-6-methylmercapto-1, 3, 5- triazine) with formula (I); b is a compound with the structure character of formula (II), wherein, R is H, Na, K or -C(O)-C3-C7alky, and X is Br or I; the weight ratio of a and b is 1: 0.07-9. The prevention effect of the herbicide made by the combination is better than the activity in the separate application of the herbicide a or the herbicide b, and the combination can bring surprising enhancing effect. The invention further discloses the application of preventing and eliminating the ruderal weeds in farmlands of corn, sugar cane, orange and other crops.

Description

Technical field: [0001] The invention belongs to the field of agricultural plant protection, and relates to a herbicidal composition with improved performance, especially a herbicidal synergistic composition. Background technique: [0002] Ametrazine (N-2-ethylamino-N-4-isopropylamino-6-methylthio-1,3,5-triazine) is a selective systemic herbicide. The herbicidal effect is rapid, and its selectivity is related to differences in plant ecology and biochemical reactions. Works best on newly-emerged weeds. It can be absorbed by 0-5 cm soil to form a drug layer, so that weeds can contact the drug when they germinate from the soil. It is used to control gramineous weeds and broad-leaved weeds in corn, sugarcane, pineapple, banana, orange straw, sugarcane and other crop fields. There are also certain disadvantages in the actual use of ametnet, such as improper application time or excessive application amount, which will cause certain phytotoxicity to the current or subsequent cro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/66A01P13/00A01N37/34
Inventor 仲汉根韦广权季自珍季红进陈新中
Owner ADAMA HUIFENG (JIANGSU) LTD
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