Weeding composition for preventing and killing weeds in rice and shrimp fields and application of weeding composition

A herbicidal composition and a technology for weeds, applied in the field of pesticides, can solve the problems of poor safety of crayfish, inability to achieve ideal control effect, poor benefit and the like

Pending Publication Date: 2022-03-08
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the application process of the above-mentioned medicaments, on the one hand, the weed control effect is not good, even if it is applied multiple times (usually 3 times), it still cannot achieve the desired control effect; It is not safe for the cultured crayfish, and the repeated application of large doses brings serious pesticide residues to the crayfish
Therefore, at present, most of the farmers still rely on manual removal of weeds in rice and shrimp fields, which has low efficiency and poor benefits, which seriously restricts the popularization and application of rice and shrimp breeding models.
[0003] So far, there is no effective method that can efficiently and safely control weeds in rice and shrimp fields

Method used

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  • Weeding composition for preventing and killing weeds in rice and shrimp fields and application of weeding composition
  • Weeding composition for preventing and killing weeds in rice and shrimp fields and application of weeding composition
  • Weeding composition for preventing and killing weeds in rice and shrimp fields and application of weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Example 1: 48% Fluorone Sulfonamide Bicyclic Sulfotrione Suspension Concentrate

[0049] Sulfamelam 8%, Bicyclic Sulfotrione 40%, Phenylphenol Ethoxylate 5%, Sodium Lignosulfonate 5%, Ethylene Glycol 5%, Magnesium Aluminum Silicate 2%, Defoamer 0.5%, preservative 0.1%, xanthan gum 0.1%, water to 100%.

[0050] The preparation method is as follows:

[0051] According to the composition and quality requirements, add each component into the reactor mixer, stir evenly, and inject the material into the multi-stage sand mill for grinding. After grinding, the fineness of the material is 98% and it passes through 1-5um before discharging. The material is mixed with The pre-dissolved xanthan gum is put together into a high-shear emulsification kettle, and after emulsification, a 48% fluoroketone-sulfame·bicyclic sulcotrione suspension can be prepared.

Embodiment 2

[0052] Example 2: 61.2% Fluorone Sulfame·Bicyclic Sulfotrione Suspension Concentrate

[0053] The components of the herbicide composition containing fluoroketone-sulam and bicyclic sulcotrione are: 1.2% fluoroketone-sulfentrane, 60% bicyclic sulcotrione, 6.5% sodium lignosulfonate, and the rest are the same as in Example 1 same.

Embodiment 3

[0054] Example 3: 52.5% Fluorone Sulfame·Bicyclic Sulfotrione Suspension Concentrate

[0055] The components of the herbicide composition containing fluoroketone-sulam and bicyclic sulcotrione are as follows: 15% fluoroketone-sulfentrame, 37.5% bicyclic sulcotrione, and the rest are the same as in Example 1.

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Abstract

The invention relates to a weeding composition containing triafamone and benzobicylon and application of the weeding composition in rice and shrimp fields, the weeding composition comprises triafamone and benzobicylon, the mass ratio of triafamone to benzobicylon is 1: 1-1: 80, and the weeding composition and pesticide allowable auxiliaries and / or filler are prepared into corresponding dosage forms. The weeding composition is used for preventing and removing weeds in the rice and shrimp fields, and when the weeding composition is used for preventing and removing the weeds in the rice and shrimp fields within the ratio range, the weeds have an obvious synergistic effect. By adopting the weeding composition disclosed by the invention, the comprehensive control effect on weeds in the rice and shrimp field can reach 95% or above only through once medication, two times of chemical removal are reduced compared with a conventional chemical removal formula for three times of medication prevention and control scheme, the herbicide is reduced by 70% or above, the weeding composition is safe to biological crayfish cultured in the rice and shrimp field, and the weed damage in the whole growth period of rice in the rice and shrimp field is controlled. The method solves the problems of high cost and low benefit of manual weeding in the rice and shrimp field, unsafety of chemical weeding to the crayfish, large pesticide residue and long residual period, reduces adverse effects of pesticides on the crayfish and the ecological environment, and promotes sustainable treatment of weeds in the rice and shrimp field.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a method for controlling weeds in rice and shrimp fields and a herbicidal composition for controlling weeds in rice and shrimp fields. Background technique [0002] The rice field compound planting and breeding model can efficiently use land, reduce the input of fertilizers, reduce environmental pollution, and ensure food safety. It is one of the development directions of high-efficiency and green agriculture. In recent years, the area of ​​rice-shrimp breeding in my country has been expanding significantly. The rice-shrimp breeding mode has special ecological conditions in paddy fields, and weeds have many types, large numbers, and serious damage. At present, due to the lack of systematic research on the safety of herbicides on crayfish, there is a lack of efficient and safe herbicide varieties for the control of weeds in rice-shrimp farming rice fields. At pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/66A01N41/10A01N25/04A01P13/00A01G13/00A01G22/22
CPCA01N43/66A01N41/10A01N25/04A01G13/00A01G22/22
Inventor 王红春张自常王可娄远来曹晶晶谷涛李贵
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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