Safeners and applications for the protection of cereal crops

A safener and crop technology, applied in the field of weed control, can solve the problems of reducing the active ingredients of acetochlor, affecting the normal growth of crops, and unsatisfactory weeding effect, so as to improve the control effect, facilitate simple operation and safe use, and facilitate The effect of weed control

Active Publication Date: 2021-09-07
湖南大方农化股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The application of herbicide safeners such as fenpyridine and pyraclofen-ethyl is very extensive, but the effect is not ideal. Often the application of herbicides after adding these safeners will still cause varying degrees of impact on food crops. When the herbicides are used alone Or combined with safener to use herbicides, herbicides such as acetochlor, acetochlor mixed with other closed herbicides (acetochlor mixture), etc., the use of closed herbicides in the early stage of food crops will not cause phytotoxicity in most cases , but encountering extreme weather, such as long-term rainy and sudden sunny weather, or long-term sunny and sudden rainy and sunny weather, etc., are very prone to phytotoxicity, the main reason is: long-term rainfall, acetochlor and acetochlor mixture will The sinking and the drop of the field water level, the herbicide contacts the root system of food crops during the sinking process, causing damage to the root system of food crops and affecting the normal growth of crops, the active ingredient of acetochlor on the soil surface is reduced, and the weeding effect is not ideal

Method used

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  • Safeners and applications for the protection of cereal crops
  • Safeners and applications for the protection of cereal crops
  • Safeners and applications for the protection of cereal crops

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] US security agents are sodium blessing capsule suspension, after security agents in combination with seed dressing agents, seed dressing to rice weeding outdoor safety test:

[0053] Treated plots, plots flat selected fertile soil plots, plots leveled into a uniform area cells, isolation zone established around terraces, each cell numbered stand.

[0054] Seed treatment, the rice varieties SY63 for germination, per 100kg of seeds using 98% sodium ziram designed to dose gradient 5,10,20,40,80,160,320g, 25% thiamethoxam · · slightly mefenoxam the amount of seed dressing is from nitrile 300g, respectively, by a series of different concentrations of sodium and ziram seed dressings 2kg of water is added followed by kneading, fully diluted safener ziram first mixing sodium water, then added to the diluted seed dressings was sufficiently stirred, and then stirred with seed germination after seed germination after the stirring before the first dry to the seed surface can not spread...

Embodiment 2

[0071] Ziram security agent is sodium suspension Seed, seed-dressing safener in combination, live field results herbicide controlling paddy weeds:

[0072] Set cell: Experimental set seven treatments, each treatment was repeated three times. Cell area of ​​20 square meters, randomized block arrangement.

[0073] Method of administration: safener ziram sodium suspension Seed dressing with a dressing agent, ziram sodium application of safener of 60g / 100kg, 25% of the amount of seed dressings thiamethoxam mefenoxam · · fludioxonil to 300g, the control group without the use of safeners, with 30% first herbicide metolachlor EC60,80,100,120,140g / acre spray five treatment groups, with 30% control agent pretilachlor 80g / acre, The second herbicide employed 69 g / liter fenoxaprop 30kg / acre.

[0074] Seed: 1, the first security agent is dissolved in water dilution ratio of 2kg / 100kg seed weight by dilution agent is added completely before the dressing dilution stir, stir primed se...

Embodiment 3

[0083] Ziram security agent is sodium suspensions for seed treatment, seed-dressing safener in combination, live controlling paddy weeds with the herbicide field trial set cell: Experimental set seven treatments, each treatment was repeated three times. Cell area of ​​20 square meters, randomized block arrangement.

[0084] Method of administration: ziram sodium dressing and dressing agent, ziram sodium application of safener of 40g / 100kg, 25% of the amount of seed dressings thiamethoxam mefenoxam · · fludioxonil is 300g, control group safeners, first with 30% herbicide metolachlor EC100g / acre spray, a second herbicide employed 69 g / liter fenoxaprop 20,35,50,65,80kg / acre treated five group, using the control agent 69 g / l EW fenoxaprop 35kg / acre.

[0085] Seed: 1, by first diluting water safener ratio 2kg / 100kg seed weight, seed dressings added after dilution to dilution stir, stir and pour been primed seeds, dry naturally after normal broadcast field planting;

[008...

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PUM

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Abstract

The invention discloses a safener for protecting cereal crops and its application. The safener includes the compound with the structural formula (I) and its intermediate. The safener of the present invention effectively increases the application range of this type of compound. When food crops use the safener and then apply herbicides, it can effectively prevent severe and extreme weather, especially sudden sunny weather, normal sunny days or long-term weather. The impact of time rainfall on the safety of herbicide use. The safener can effectively protect the root system of food crops, prevent the herbicide from sinking with the rainwater in the field and the drop of water level from affecting the root system of food crops, and effectively protect the food crops. , Reduce the impact of herbicides on food crops, and facilitate the improvement of weed control efficiency.

Description

Technical field [0001] The present invention relates to the technical field of weed control, in particular for protecting cereal crops application security agent. Background technique [0002] It refers weed herbicide is completely or selection can occur dead agents, also known as herbicides to destroy or inhibit the growth of a plant species. [0003] Effects wherein sodium chlorate, borax, Soft acid, trichloroacetic acid for any kinds of plants are dead action, its role by herbicides, plant and environmental conditions of the three factors. There are several types of herbicides by action should result Grass * * # * # * should be selected. [0004] (1) selective herbicides: these herbicides within a certain dose range used, can selectively kill certain harmful plants, the crop safety. Proper use of crop ground, can be attained only kill weeds without harming the crop. [0005] (2) Herbicide: Such herbicides kill all plants have effects such as paraquat, sodium pentachlorophenol,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/32A01N51/00A01N37/46A01N43/36A01N37/22A01N43/76A01P13/00A01C1/06
CPCA01C1/06A01N25/32A01N37/22A01N37/46A01N43/36A01N43/76A01N51/00
Inventor 李旭君刘洪斌
Owner 湖南大方农化股份有限公司
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