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Quinclorac-based composite herbicide

A technology of quinclorac and compound herbicides, applied in the field of pesticide preparation, can solve problems affecting the normal growth of rice, weed growth, and general herbicide effects

Pending Publication Date: 2021-11-19
安徽省圣丹生物化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing herbicides are generally effective and take a long time to take effect, and weeds will still grow after use. Weeds will absorb the nutrients of rice and affect the normal growth of rice.

Method used

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  • Quinclorac-based composite herbicide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A compound herbicide based on quinclorac, comprising the following raw materials in parts by weight: 20 parts of quinclorac, 3 parts of dimethyltetrachloride, 10 parts of synergist, 1.5 parts of Petro AA, 1 part of sodium tripolyphosphate , 0.5 parts of lauric acid, 50 parts of water;

[0033] This compound herbicide is made by following steps:

[0034] Step S1: Add quinclorac, dimethyltetrachloride, and Petro AA into the stirring tank, and stir for 20 minutes at a rotating speed of 300 r / min to obtain a mixed solution;

[0035]Step S2: Add synergist, tripolyphosphoric acid, and lauric acid to the mixture, and stir for 1 hour at a rotation speed of 1000 r / min to prepare a pesticide composition.

[0036] Described synergist is made by following steps:

[0037] Step A1: Add 4-nitrophthalic acid and phosphorus pentoxide into the reaction kettle, pass nitrogen gas for protection, and heat for 6 hours at a temperature of 240°C to obtain intermediate 1, and intermediate 1 ...

Embodiment 2

[0042] A compound herbicide based on quinclorac, comprising the following raw materials in parts by weight: 25 parts of quinclorac, 5 parts of dimethyltetrachloride, 15 parts of synergist, 2.5 parts of Petro AA, 2 parts of sodium tripolyphosphate , 1.5 parts of lauric acid, 60 parts of water;

[0043] This compound herbicide is made by following steps:

[0044] Step S1: Add quinclorac, dimethyltetrachloride, and Petro AA into the stirred tank, and stir for 30 minutes at a rotating speed of 300 r / min to obtain a mixed solution;

[0045] Step S2: Add synergist, tripolyphosphoric acid, and lauric acid to the mixture, and stir for 1.5 hours at a rotation speed of 1000 r / min to prepare a pesticide composition.

[0046] Described synergist is made by following steps:

[0047] Step A1: Add 4-nitrophthalic acid and phosphorus pentoxide into the reaction kettle, pass nitrogen gas for protection, and heat for 8 hours at a temperature of 240°C to obtain intermediate 1, and intermediate...

Embodiment 3

[0052] A compound herbicide based on quinclorac, comprising the following raw materials in parts by weight: 30 parts of quinclorac, 8 parts of dimethyltetrachloride, 20 parts of synergist, 4.5 parts of Petro AA, 3 parts of sodium tripolyphosphate , 2.5 parts of lauric acid, 70 parts of water;

[0053] This compound herbicide is made by following steps:

[0054] Step S1: Add quinclorac, dimethyltetrachloride, and Petro AA into the stirred tank, and stir for 30 minutes at a rotating speed of 500 r / min to obtain a mixed solution;

[0055] Step S2: Add synergist, tripolyphosphoric acid, and lauric acid to the mixture, and stir for 1.5 hours at a rotation speed of 1200 r / min to prepare a pesticide composition.

[0056] Described synergist is made by following steps:

[0057] Step A1: Add 4-nitrophthalic acid and phosphorus pentoxide into the reaction kettle, blow nitrogen into it for protection, and heat for 8 hours at a temperature of 260°C to prepare intermediate 1, and interme...

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Abstract

The invention discloses a quinclorac-based composite herbicide. The composite herbicide is prepared from, by weight, 20-30 parts of quinclorac, 3-8 parts of chipton, 10-20 parts of a synergist, 1.5-4.5 parts of a wetting agent, 1-3 parts of a dispersing agent, 0.5-2.5 parts of a defoaming agent and 50-70 parts of water. The synergist inhibits the growth of cells by hindering the synthesis of proteins, upward conduction is achieved through the absorption of plant buds, namely coleoptiles of monocotyledons and hypocotyls of dicotyledons, and also absorption and conduction are also achieved through seeds and roots, but the absorption amount is small, the conduction speed is low, upward conduction is achieved mainly through root absorption after seedling emergence, the growth of buds and roots is inhibited, sensitive weeds can be poisoned and die immediately before sprouting or just coming up, and photosynthesis of the weeds can be prevented, so that the weeds are removed more thoroughly.

Description

technical field [0001] The invention relates to the technical field of pesticide preparation, in particular to a compound herbicide based on quinclorac. Background technique [0002] Quinclorac (quinclorac), chemical name: 3,7-dichloro-8-quinoline carboxylic acid, is a new type of herbicide for rice fields before and after emergence developed by BASF company. The drug has less dosage and long residual effect , Special effects on barnyard grass, wide application period and other advantages. Quinclorac is a hormone-type quinoline carboxylic acid herbicide. Its target is the synthetic hormone in plants. By interfering with the activity of enzymes regulated by plant hormones, the growth and metabolism of organisms cannot proceed normally, and the leaves appear smaller. , distorted, deepened color, reduced biomass, severe cases withered and necrotic, until the whole plant died to achieve the purpose of weeding. Quinclorac is used to control barnyardgrass and other weeds in dire...

Claims

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Application Information

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IPC IPC(8): A01N43/42A01N39/04A01N43/86C07D417/12A01P13/00
CPCA01N43/42A01N39/04A01N43/86C07D417/12
Inventor 陈金如钱同兰范泽求范进林
Owner 安徽省圣丹生物化工有限公司
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