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Herbicide composite for rice field

A herbicide and composition technology, which is applied to the herbicide composition of broad-leaved weeds and sedge weeds, and controls the field of grass weeds in paddy fields, and can solve the problem of incomplete control of broad-leaved weeds and damage to the next year. Seed renewal, slow weeding speed and other problems, to achieve the effect of expanding the weed control spectrum, reducing the number of medications, and long-lasting effect

Inactive Publication Date: 2014-07-09
SHANDONG BINNONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The mechanism of action of the agent is to prevent the division of plant cells, resulting in stunted growth and death
Tetrazol has a good control effect on most annual weeds, such as barnyardgrass, heterosedge, firefly rush, bermudagrass, and knotweed, especially for barnyardgrass and heterosedge before emergence The effect at the second-leaf stage is the best; low doses also have high herbicidal activity against old barnyard grass, but the herbicide is only effectiv

Method used

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  • Herbicide composite for rice field
  • Herbicide composite for rice field
  • Herbicide composite for rice field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: 80% Tetrafentrazone·Sulcotrione·Ethoxysulfuron (1:2:1) Wettable Powder

[0031] Weigh 20% Tetrafentrazone, 40% Sulcotrione, 20% Ethoxysulfuron, 6% Sodium Lignosulfonate, 3% Open Powder BX, and Kaolin to make up to 100%. A powdery preparation of a certain particle size obtained by mixing the above-mentioned raw materials uniformly in a mixer and pulverizing by airflow. After passing the inspection, 80% Tetrafentrazone·Sulcotrione·Ethoxysulfuron can be obtained Wet powder.

[0032] Application: It is suitable for the control of all weeds in rice fields, especially for barnyardgrass, crabgrass, calamansi, camping rush, triangulum, special-shaped sedge, cardamine sedge, etc. It has high control effect, the amount per mu 20-30 grams, mixed with 30-40 kg of water, sprayed or mixed with soil, the control effect is 82-85%.

Embodiment 2

[0033] Example 2: 70% Tetrafentrazone·Bicyclic Sulcotrione·Ethoxysulfuron (1:3:1) Wettable Powder

[0034] Weigh 14% Tetrafentrazone, 42% Bicyclic Sulcotrione, 14% Ethoxysulfuron, 7% Polycarboxylate, 4% Sodium Lauryl Sulfate, and Kaolin to make up to 100%. A powder formulation of a certain particle size obtained by mixing the above-mentioned raw materials in a mixer uniformly and pulverizing by airflow. After passing the inspection, 70% Tetrafentrazone·Sulcotrione·Ethoxysulfuron can be obtained. Wet powder.

[0035] Application: It is suitable for the control of all weeds in rice fields, especially for barnyardgrass, crabgrass, calamansi, firefly, triangulum, heteromorphic sedge, cardamine sedge, etc. It has high control effect, the amount per mu 30-40 grams, mixed with 30-40 kilograms of water and sprayed or mixed with soil, the control effect is 85-88%.

Embodiment 3

[0036] Example 3: 54% Tetrafentrazone·Sulcotrione·Ethoxysulfuron (2:4:3) wettable powder.

[0037] Weigh 12% Tetrafentrazone, 24% Bicyclic Sulcotrione, 18% Ethoxysulfuron, 5% Naphthalene and Alkyl Naphthalene Sulfonate Formaldehyde Condensate, 4% Fatty Alcohol Polyoxyethylene Ether, Bentonite to make up To 100%. A powder formulation of a certain particle size obtained by mixing the above-mentioned raw materials in a mixer and pulverizing by airflow. After passing the inspection, 54% Tetrafentrazone·Sulcotrione·Ethoxysulfuron can be obtained Wet powder.

[0038] Application: It is suitable for the control of all weeds in rice fields, especially for barnyardgrass, crabgrass, calamansi, firefly, tri-edge grass, special-shaped sedge, cardamine sedge, etc. It has high control effect, the amount per mu 35-45 grams, mixed with 30-40 kilograms of water, sprayed or mixed with soil, the control effect is 80-83%.

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Abstract

The invention relates to a herbicide composite for a rice field. The active ingredients of the composite are fentrazamide, benzobicylon and ethoxysulfuron at the weight ratio of (1-2):(2-4):(1-5), preferably 1:2:4. The herbicide composite comprises reasonable ingredients, has complementary herbicide controlling spectra, can effectively prevent and kill all the weeds in the rice field and particularly has excellent effect on worst weeds which are difficult to prevent and kill for a long time and resistant weeds which occur in the rice field in recent years. Compared with a single dosage, the herbicide composite has obvious synergistic effect and can reduce the dosage and the application frequency. The herbicide composite has a long period of effect time, is highly safe to rice and meets the requirement of the development of pesticide preparations.

Description

【Technical Field】 [0001] The invention relates to the technical field of pesticides, in particular to a kind of grass weeds, broad-leaved weeds and cyperaceae weeds in paddy fields that use tetrazolin, bicyclazone and ethoxysulfuron as active ingredients Of herbicide composition. 【Background technique】 [0002] Rice is my country's largest food crop, the sown area ranks second in the world, and the total output ranks first in the world. Rice has a pivotal position in grain production. Stable and increased production of rice is of great strategic significance to my country's food security. [0003] Weeds in rice fields are an important factor affecting their yield and quality. In recent years, surveys have found that there are more than 30 kinds of weeds in 14 families in rice fields. Among them, barnyardgrass, stephen gold, crabgrass, goosegrass, etc. of the family Gramineae; special-shaped sedge, cardamine sedge, wild water chestnut, cow felt, firefly, etc. of Cyperaceae; broad-...

Claims

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Application Information

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IPC IPC(8): A01N47/38A01P13/00A01N47/36A01N41/10
Inventor 黄延昌司永兵禹文静
Owner SHANDONG BINNONG TECH
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