Formamido-pyrazosulfuron-methyl and iodosulfuron-methyl sodium composite herbicide

A technology of iodosulfuron-methyl sodium salt and rimsulfuron-methyl formamido, which is applied in the direction of herbicides, algicides, biocides, biocides, etc., and can solve the speed and aggravation of weed resistance that cannot keep up Environmental pollution, high development costs and other issues, to achieve the effects of human and animal and environmental safety, crop safety, and reduce drug costs

Active Publication Date: 2014-12-17
QINGDAO HANSEN BIOLOGIC SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Herbicides with a single active component, continuous application of weeds is prone to resistance, narrow herbicidal spectrum, and frequent application will increase environmental pollution
For example, the development of herbicides with new ingredients not only has high development costs, but also the development cycle cannot keep up with the speed of weed resistance.
However, measures such as crop layout adjustments and different pesticide rotations have little effect in the actual miss process

Method used

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  • Formamido-pyrazosulfuron-methyl and iodosulfuron-methyl sodium composite herbicide
  • Formamido-pyrazosulfuron-methyl and iodosulfuron-methyl sodium composite herbicide
  • Formamido-pyrazosulfuron-methyl and iodosulfuron-methyl sodium composite herbicide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A compound herbicide of rimsulfuron-methyl and iodosulfuron-methyl sodium salt, which is an emulsifiable concentrate, consists of the following components in percentage by weight: rimsulfuron-methyl formamide, 6%; iodosulfuron-methyl methyl Salt, 2%; Nongru 500# and Nongru 601# are used as emulsifiers, the dosages are 4% and 5% respectively; N,N-dimethylformamide is used as solvent, 10%, xylene, the balance.

[0029] Preparation method: Add the active ingredients rimsulfuron-methyl and iodosulfuron-methyl sodium salt herbicides into the carrier according to the formula ratio of the example, and add surfactants and other functional auxiliaries to it, and put them in a stirring mixing tank Stir to combine evenly. The stirring and mixing kettle can be enamel reaction kettle, stainless steel stirring kettle, etc.

Embodiment 2

[0031] A compound herbicide of rimsulfuron-methyl and iodosulfuron-methyl sodium salt, which is a wettable powder oil, consists of the following components in percentage by weight: rimsulfuron-methyl formamide, 40%; Sulfuron-methyl sodium salt, 10%; wetting agent sodium lauryl sulfate, 3%; dispersant calcium lignosulfonate, 8%; filler white carbon black, 15%, filler kaolin, the balance.

[0032] Preparation method: according to the formula ratio of the example, add the active ingredients rimsulfuron-methyl and iodosulfuron-methyl sodium salt herbicides into the carrier, and add surfactants and other functional auxiliaries to it, mix, and pass through the airflow After pulverization, the wettable powder is obtained by mixing. The main equipment is a mixer and a jet mill.

Embodiment 3

[0034] A compound herbicide of rimsulfuron-methyl and iodosulfuron-methyl sodium salt, which is a water-dispersible granule, consists of the following components in percentage by weight: rimsulfuron-methyl formamido, 45%; methyl iodide Sulfuron-methyl sodium salt, 10%; wetting agent sodium dodecylbenzene sulfonate, 4%; dispersing agent alkylnaphthalene sulfonate formaldehyde condensate, 8%; filler attapulgite, the balance.

[0035] Preparation method: according to the formula ratio of the example, add the active ingredients rimsulfuron-methyl and iodosulfuron-methyl sodium salt herbicides into the carrier, and add surfactants and other functional auxiliaries to it, mix, and pass through the airflow After crushing, add 10-25% of water, then knead, granulate, dry, and sieve to obtain water-dispersible granules; or spray the crushed powder with water, granulate, and dry in a boiling granulator. Then sieve to obtain the product. The main equipments are mixer, jet mill, kneader, e...

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Abstract

The invention discloses a formamido-pyrazosulfuron-methyl and iodosulfuron-methyl sodium composite herbicide, belongs to the field of herbicides and aims at solving the problem that existing herbicides enable weeds to produce resistance and are poor in effect. The formamido-pyrazosulfuron-methyl and iodosulfuron-methyl sodium composite herbicide comprises effective ingredients including formamido-pyrazosulfuron-methyl and iodosulfuron-methyl sodium and further comprises a carrier and an assistant, wherein the weight ratio of the formamido-pyrazosulfuron-methyl to the iodosulfuron-methyl sodium is 30:1-1:20. The weeding composition has obvious synergistic effect, the pesticide using amount can be reduced, and the pesticide cost and environment pollution are reduced. Acting sites of the weeding composition are different, and weed resistance to the pesticides can be overcome and retarded. The formamido-pyrazosulfuron-methyl and iodosulfuron-methyl sodium composite herbicide is safe for crops, people, livestock and environment.

Description

technical field [0001] The invention relates to the field of herbicides, in particular to a compound herbicide of rimsulfuron-methyl and iodosulfuron-methyl sodium salt. Background technique [0002] Formamide rimsulfuron is a high-efficiency, broad-spectrum, low-toxicity, high-selectivity sulfonylurea herbicide, which is a branched-chain amino acid synthesis inhibitor. Inhibit the synthesis of essential amino acids for organisms, stop cells from dividing, and hinder plant growth. Post-emergence weeding, widely used in cereal crops such as corn, etc., has excellent activity against many annual or perennial grasses or broad-leaved weeds. [0003] Sodium methyl iodide sulfonate is a selective post-emergence herbicide, mainly used to control grain grass weeds and broad-leaved weeds such as wheat, rye, barley, etc. After being absorbed by weed roots and leaves, it is transmitted in plants , so that the leaves of weeds turn green, stop growing, and then die. It has a good cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01P13/00
Inventor 吴本林邵彦坡李波郝丽霞任西财薛泽程
Owner QINGDAO HANSEN BIOLOGIC SCI
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