CN113180040A - Combination of penoxsulam and safener (mefenpyr-diethyl) for relieving wheat phytotoxicity and application thereof - Google Patents
Combination of penoxsulam and safener (mefenpyr-diethyl) for relieving wheat phytotoxicity and application thereof Download PDFInfo
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- CN113180040A CN113180040A CN202110445969.XA CN202110445969A CN113180040A CN 113180040 A CN113180040 A CN 113180040A CN 202110445969 A CN202110445969 A CN 202110445969A CN 113180040 A CN113180040 A CN 113180040A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/32—Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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Abstract
The invention discloses a combination of penoxsulam and a safener (mefenpyr-diethyl) for relieving the phytotoxicity of the penoxsulam to wheat and application thereof. Is a feasible application which can effectively relieve the phytotoxicity of penoxsulam to wheat at present.
Description
Technical Field
The invention belongs to the technical field of plant protection, and relates to a combination for relieving wheat phytotoxicity of penoxsulam by mixing penoxsulam and safener mefenpyr-diethyl and application thereof.
Background
Wheat is important commodity grain and strategic reserve grain in China, safe production of wheat is vital to economic development and life of people in China, and the wheat is in an important position in grain production in China. Farmland weeds are an important biological disaster seriously damaging agricultural production, and the weeds in the wheat field are various, so that the quality of wheat is influenced, and the quality of wheat is also influenced.
Chemical control remains the main method for controlling weeds in wheat fields. With the change of farming system and crop layout and the use of a large amount of herbicide, malignant weeds such as Japanese foxtail bring great threat to the safe production of wheat. At present, the soil treatment agent for the wheat field is mainly isoproturon which is commonly used at present and has single variety. Among the agents for controlling gramineous weeds in the treatment of postemergence foliage, the main agents are ACCase inhibitors and ALS inhibitors. The fenoxaprop-p-ethyl is most widely applied, and due to long-term use of the fenoxaprop-p-ethyl, the weeds generate drug resistance to the fenoxaprop-p-ethyl, so that the fenoxaprop-p-ethyl generates cross resistance to other ACCase inhibitor herbicides and generates multi-resistance to other action mechanism medicaments; the broad-leaved weeds are prevented and removed by a plurality of agents, the tribenuron-methyl is widely used in production, and the drug resistance problem is caused by long-term mass use of the tribenuron-methyl. Therefore, the search for a broad-spectrum herbicide for effectively preventing and killing off the wheat field Fangmai has great significance.
Penoxsulam belongs to sulfonylurea herbicides, is a conductive herbicide, and has the weeding characteristic that an Acetosynthase (ALS) inhibitor is absorbed by stem leaves, buds and root systems, is conducted to meristematic tissues through xylem and phloem to inhibit plant growth, so that growing points lose green, and 7-14d of apical buds after treatment turn red and necrotize, and the plants die in 2-4 weeks. Penoxsulam is a broad-spectrum herbicide for rice fields, can effectively prevent and kill barnyard grass (including barnyard grass with resistance to propanil, quinclorac and acetyl coenzyme A carboxylase) and annual sedge weeds, and is effective on a plurality of broadleaf weeds, such as marsh isopistil, carp intestine, sesbania, Japanese chikusetaria, monochoria vaginalis and the like. The lasting period is as long as 30-60 days, and the harm of weeds in all seasons can be basically controlled by one-time application. Meanwhile, the herbicide can prevent and kill bensulfuron methyl weeds in rice fields, and has residual activity on a plurality of broad leaf weeds, cyperaceae weeds and the like. Is the species with the widest weed control spectrum in the prior herbicide for paddy fields. Penoxsulam is found to have good control effect on weeds in a wheat field in the laboratory, but causes phytotoxicity on wheat seedlings, so that the phytotoxicity needs to be relieved by applying a safener.
According to the invention, through intensive research on the blending of the penoxsulam and the mefenpyr-diethyl, the results show that the mefenpyr-diethyl has no influence on the weeding effect of the penoxsulam for preventing and killing weeds in the wheat field, and the phytotoxicity of the penoxsulam to wheat is obviously reduced.
The invention aims to define that the safener pyracloquintocet-mexyl can effectively relieve the phytotoxicity of penoxsulam to wheat and the optimal dosage of the safener pyracloquintocet-mexyl.
The invention realizes the aim through the following technical scheme:
the herbicide is mixed with the safener, and the main components of the herbicide are the herbicide penoxsulam and the safener pyracloquintocet-mexyl, which are used for relieving the phytotoxicity of the penoxsulam to wheat.
The mixed combination use method of penoxsulam and mefenpyr-diethyl comprises the following steps: spraying the stem and leaf of wheat at 2-5 leaf stage after seedling.
The penoxsulam and the mefenpyr-diethyl are mixed, and the advantages are as follows:
(1) after the pyracloquintocet-mexyl is added, the penoxsulam has no influence on the weeding effect of weeds in the wheat field.
(2) Can obviously relieve the phytotoxicity of penoxsulam to wheat.
Detailed Description
(I) the effect of the mixing of cloquintocet-mexyl and penoxsulam on the weeding effect of weeds in wheat fields-indoor test:
reagent to be tested: 98% penoxsulam technical product (Qingdao Jiner agricultural chemical research and development Co., Ltd.)
10% Pyrazolidone (Qingdao Jiner agricultural chemical research and development Co., Ltd.)
The tested weeds: japanese wheat-looking mother (5 months in 2016 Severe, Ming village of Liuhe district, Nanjing city, Jiangsu province)
Laboratory test procedure
1.1 mixing of mefenpyr-diethyl and penoxsulam has influence on the weeding effect of Nissan beauveria
1) 30g of 98% penoxsulam technical material a.i/ha and 10% mefenpyr-diethyl 5g a.i/ha
2) 30g of 98% penoxsulam technical material a.i/ha and 7.5g of 10% mefenpyr-diethyl
3) 60g of 98% penoxsulam technical material a.i/ha + 10% mefenpyr-diethyl 10g a.i/ha
4) 60g of 98% penoxsulam technical material a.i/ha + 10% mefenpyr-diethyl 15g a.i/ha
5) 30g a.i/ha 98% penoxsulam technical
6) 60g a.i/ha of 98% penoxsulam technical material
7) Clear water control
Each treatment was repeated 4 times.
1.2 test process for influence of mixing of mefenpyr-diethyl and penoxsulam on weeding effect of Nissan
Measured by indoor whole plant bioassay method.
Organic soil without herbicide is filled into a plastic cup with the specification of 7 multiplied by 7cm, the pH value is 6.7, the organic matter content is 1.59 percent, the Japanese rhodomyrtus tomentosa is sowed, and water is added until the mixture is saturated. Selecting full-seed Japanese Aleuropea Dunn seeds, sowing 20 seeds in each plastic cup, covering a layer of fine soil, and carrying out final singling when the Japanese Aleuropea Dunn grows to the 1-leaf stage, wherein the final singling of each pot is 15. Culturing after final singling, treating stem and leaf of the sown Japanese Aleurea by spraying when the Japanese Aleurea grows to 2-leaf stage, spraying equal amount of clear water, and repeating for 4 times. The spraying adopts a 3WP-2000 type walking type bioassay spraying tower produced by Nanjing agricultural mechanization research institute of agricultural department, the rotating speed of a main shaft is 96mm/r, the spraying height is 300mm, the effective spraying width of a nozzle is 350mm, the flow rate of the nozzle is 390mL/min, the walking distance is 1340mm, and the volume of liquid medicine is 30 mL. After treatment, the plants were placed in a sunlight greenhouse for growth, the temperature was set at 20 ℃ under light, 15 ℃ in darkness and a light cycle of 12: 12h (D: L).
The fresh weight of the Japanese physalis pubescens in each plastic pot was recorded in an investigation 21 days after the application of the drug, and the fresh weight inhibition rate was calculated.
Fresh weight inhibition (%) - (control fresh weight-treated fresh weight)/control fresh weight × 100
The results of the laboratory tests are shown in the following table:
TABLE 1 Effect of mefenpyr-diethyl on the herbicidal Effect of penoxsulam 30g a.i/ha on Nissan-meyer
TABLE 2 Effect of mefenpyr-diethyl on the herbicidal Effect of penoxsulam 60g a.i/ha on Nissan-maiden
As can be seen from tables 1 and 2, when the pyracloquintocet-mexyl and the penoxsulam are mixed and applied, the herbicidal effect of the pyracloquintocet-mexyl on the Japanese foxtail is not significantly reduced when the dosages of the penoxsulam and the penoxsulam are 30g a.i./ha and 60g a.i./ha, the fresh weight inhibition rate of the penoxsulam on the Japanese foxtail is more than 88%, the fresh weight inhibition rate of the penoxsulam on the Japanese foxtail is more than 93% when the dosages of the penoxsulam and the penoxsulam are 60g a.i./ha, and the requirements of the penoxsulam on the control of the Japanese foxtail are met. Therefore, the mefenpyr-diethyl does not reduce the weeding effect of the penoxsulam on weeds in the wheat field.
(II) Mefenpyr-diethyl and penoxsulam compounding test for relieving the phytotoxicity of penoxsulam to wheat-laboratory test:
reagent to be tested: 98% penoxsulam technical product (Qingdao Jiner agricultural chemical research and development Co., Ltd.)
10% Pyrazolidone (Qingdao Jiner agricultural chemical research and development Co., Ltd.)
Test work: huai Mai 39, Bai nong 889, jin Dan Mai 1, xi nong 822.
Laboratory experiment process
2.1 blending of mefenpyr-diethyl and penoxsulam to alleviate the drug harm of penoxsulam to wheat
1) 30g of 98% penoxsulam technical material a.i/ha and 10% mefenpyr-diethyl 5g a.i/ha
2) 30g of 98% penoxsulam technical material a.i/ha and 7.5g of 10% mefenpyr-diethyl
3) 60g of 98% penoxsulam technical material a.i/ha + 10% mefenpyr-diethyl 10g a.i/ha
4) 60g of 98% penoxsulam technical material a.i/ha + 10% mefenpyr-diethyl 15g a.i/ha
5) 30g a.i/ha 98% penoxsulam technical
6) 60g a.i/ha of 98% penoxsulam technical material
7) Clear water control
Each treatment was repeated 4 times.
2.2 mixing of mefenpyr-diethyl and penoxsulam to relieve the phytotoxicity of penoxsulam to wheat
Organic soil without herbicide is filled into a plastic cup with the specification of 7.3 multiplied by 10.5cm, the pH value is 6.7, the organic matter content is 1.59 percent, and water is added until the organic soil is saturated. Selecting wheat seeds with full seeds, sowing 15 seeds in each plastic cup, and then covering a layer of fine soil. After the wheat seedlings emerge regularly, the seedlings of the wheat are fixed, and each pot is fixed to 10 plants. Culturing continuously after final singling, treating stem and leaf of the sown wheat by spraying at the 2-leaf stage of the wheat, spraying equivalent clear water as a control, and repeating the treatment for 4 times. The spraying adopts a 3WP-2000 type walking type bioassay spraying tower produced by Nanjing agricultural mechanization research institute of agricultural department, the rotating speed of a main shaft is 96mm/r, the spraying height is 300mm, the effective spraying width of a nozzle is 350mm, the flow rate of the nozzle is 390mL/min, the walking distance is 1340mm, and the volume of liquid medicine is 30 mL. After treatment, the plants were placed in a sunlight greenhouse for growth, the temperature was set at 20 ℃ under light, 15 ℃ in darkness and a light cycle of 12: 12h (D: L).
After the application of the composition for 21 days, the fresh weight of wheat in each plastic pot is recorded in an investigation manner, and the fresh weight inhibition rate and the detoxification effect of the mefenpyr-diethyl are calculated.
Fresh weight inhibition (%) - (control fresh weight-treated fresh weight)/control fresh weight × 100
Detoxification effect E (%) [ (fresh weight of rice after herbicide treatment with mefenpyr-diethyl ether-fresh weight of rice after herbicide treatment alone)/fresh weight of rice of blank control ] × 100
The results of the laboratory tests are shown in the following table:
TABLE 3 relieving effect of mefenpyr-diethyl on penoxsulam 30g a.i/ha on Huai-mai 39 phytotoxicity
TABLE 4 Mexican effect of mefenpyr-diethyl on penoxsulam 60g a.i/ha on relieving of 39-injury from Huai-mai
TABLE 5 Mexican effect of mefenpyr-diethyl on penoxsulam 30g a.i/ha on pesticide injury of Bainong 899
TABLE 6 Mexaflufen-ethyl effect on relieving penoxsulam-60 g a.i/ha phytotoxicity to Bainong 899
TABLE 7 Mexican effect of mefenpyr-diethyl on penoxsulam 30g a.i/ha on Miss No. 1 phytotoxicity
TABLE 8 relieving Effect of mefenpyr-diethyl on penoxsulam 60g a.i/ha on Monomesan No. 1 phytotoxicity
TABLE 9 relieving effect of mefenpyr-diethyl on penoxsulam 30g a.i/ha on pesticide 822 damage
TABLE 10 Mexican effect of mefenpyr-diethyl on penoxsulam 60g a.i/ha on pesticide 822 damage alleviation
As can be seen from tables 3-10, the application of the mixed preparation of mefenpyr-diethyl and penoxsulam at the same time in the 2-leaf stage of wheat can relieve the phytotoxicity of 30 and 60g of a.i./ha penoxsulam on different wheat varieties.
The phytotoxicity to the common yam rhizome 39 caused by the penoxsulam when the using dose of the penoxsulam is 30g a.i./ha can be effectively relieved by adding the mefenpyr-diethyl, the fresh weight inhibition of the wheat caused by 30g a.i./ha can be relieved by adding 1/6 and 1/4 safeners, namely when the concentration of the mefenpyr-diethyl is 5 and 7.5g a.i./ha, the fresh weight inhibition rates of the wheat caused by 30g a.i./ha are respectively 1.69 percent and-1.17 percent, the fresh weight inhibition rates are respectively and remarkably lower than 15.19 percent of the fresh weight inhibition rate of the wheat caused by 30g a.i./ha penoxsulam when the penoxsulam is used alone, and the detoxification effect reaches 13.51 percent and 16.36 percent; the phytotoxicity to the penoxsulam 899 when the usage dose of the penoxsulam is 30g of a.i./ha can be effectively relieved by adding the mefenpyr-diethyl, the fresh weight inhibition of the penoxsulam 30g of a.i./ha to wheat can be relieved by adding the safeners 1/6 and 1/4, namely when the concentrations of the mefenpyr-diethyl are both 5 and 7.5g of a.i./ha, the fresh weight inhibition rates of the penoxsulam 30g of a.i./ha to wheat are respectively-1.68% and 0.77%, the fresh weight inhibition rates of the penoxsulam added with the safeners are respectively lower than 18.71% and the detoxification effect reaches 20.39% and 17.94%; the phytotoxicity on the Jinmai No. 1 caused by the penoxsulam when the using dose of the penoxsulam is 30g of a.i./ha can be effectively relieved by adding the mefenpyr-diethyl, the fresh weight inhibition of the penoxsulam on the wheat can be relieved by adding 1/6 and 1/4 of safeners, namely when the concentrations of the mefenpyr-diethyl are both 5 and 7.5g of a.i./ha, the fresh weight inhibition rates of the penoxsulam on the wheat after adding the safeners are respectively 2.05 percent and 6.16 percent, the fresh weight inhibition rates are respectively and obviously lower than 21.98 percent of the fresh weight inhibition rate of the penoxsulam on the wheat when the penoxsulam is singly used by adding 30g of a.i./ha, and the detoxification effect reaches 19.93 percent and 15.82 percent; the phytotoxicity to west farming 822 when the usage amount of penoxsulam is 30g a.i./ha can be effectively relieved by adding the mefenpyr-diethyl, the fresh weight inhibition of wheat by 30g a.i./ha can be relieved by adding 1/6 and 1/4 safeners, namely when the concentration of the mefenpyr-diethyl is 5 and 7.5g a.i./ha, the fresh weight inhibition rates of wheat by 30g a.i./ha are respectively 5.67% and 7.52%, the fresh weight inhibition rates of wheat by adding the safeners are respectively lower than 12.20% when the 30g a.i./ha penoxsulam is used alone, and the detoxification effect reaches 6.10% and 4.26%.
The phytotoxicity to the common yam rhizome 39 when the usage amount of the penoxsulam is 60g a.i./ha can be effectively relieved by adding the mefenpyr-diethyl, the fresh weight inhibition of the wheat by 60g a.i./ha can be relieved by adding 1/6 and 1/4 safeners, namely when the concentration of the mefenpyr-diethyl is 10 and 15g a.i./ha, the fresh weight inhibition rates of the wheat by 60g a.i./ha penoxsulam are respectively 4.29% and 6.10%, the fresh weight inhibition rates are respectively obviously lower than 27.01% of the fresh weight inhibition rate of the wheat when the 60g a.i./ha penoxsulam is used alone, and the detoxification effect reaches 22.73% and 20.91%; the phytotoxicity to the penoxsulam 899 when the usage dose of the penoxsulam is 60g a.i./ha can be effectively relieved by adding the mefenpyr-diethyl, the fresh weight inhibition of the penoxsulam to the wheat can be relieved by adding the safeners 1/6 and 1/4, namely when the concentrations of the mefenpyr-diethyl are both 10 and 15g a.i./ha, the fresh weight inhibition rates of the penoxsulam to the wheat are respectively 0.52 percent and 3.23 percent, the fresh weight inhibition rates are both obviously lower than that of the penoxsulam to the wheat when the penoxsulam is singly used by adding the safeners and are respectively 48.77 percent, and the detoxification effect reaches 48.26 percent and 45.55 percent; the phytotoxicity to the cymbidium sinense No. 1 when the usage dosage of the penoxsulam is 60g a.i./ha can be effectively relieved by adding the mefenpyr-diethyl, the fresh weight inhibition of the penoxsulam to the wheat can be relieved by adding 1/6 and 1/4 safeners, namely when the concentration of the mefenpyr-diethyl is 10 and 15g a.i./ha, the fresh weight inhibition rates of the penoxsulam to the wheat are respectively-3.02% and 5.68%, the fresh weight inhibition rates are respectively lower than 25.24% and the detoxification effect reaches 28.26% and 19.57% when the penoxsulam is singly used; the phytotoxicity to west farming 822 when the usage amount of penoxsulam is 60g a.i./ha can be effectively relieved by adding the mefenpyr-diethyl, the fresh weight inhibition of wheat by 60g a.i./ha can be relieved by adding 1/6 and 1/4 safeners, namely when the concentration of the mefenpyr-diethyl is 10 and 15g a.i./ha, the fresh weight inhibition rates of wheat by 60g a.i./ha penoxsulam are respectively-1.84% and-3.26%, the fresh weight inhibition rates are respectively obviously lower than 26.81% of the fresh weight inhibition rate of wheat when the 60g a.i./ha penoxsulam is used alone, and the detoxification effect reaches 13.62% and 15.04%.
Therefore, the phytotoxicity of penoxsulam on wheat can be relieved by adding 1/6-1/4 of the safener pyracloquintocet-mexyl, and when the dosage of penoxsulam is 30g of a.i./ha and 60g of a.i./ha, the optimal concentration of the added pyracloquintocet-mexyl is 5g of a.i./ha and 10g of a.i./ha respectively, so that the phytotoxicity of penoxsulam on wheat can be effectively relieved.
Claims (5)
1. A combination of penoxsulam and a safener (mefenpyr-diethyl) for relieving the phytotoxicity of the penoxsulam to wheat and an application thereof are characterized in that the combination takes the penoxsulam and the safener (mefenpyr-diethyl) as effective active ingredients, the safener (mefenpyr-diethyl) can effectively relieve the phytotoxicity of the penoxsulam to the wheat, and meanwhile, the weeding effect of the penoxsulam to weeds in a wheat field is not influenced.
2. The composition of claim 1, wherein the pyracloquintoctrazone-ethyl is added in the range of 1/6-1/4 of the penoxsulam preparation, namely, when the penoxsulam is used in the dose of 30g a.i./ha, the pyracloquintoctrazone-ethyl is added in the range of 5-7.5g a.i./ha, and when the penoxsulam is used in the dose of 60g a.i./ha, the pyracloquintoctrazone-ethyl is added in the range of 10-15g a.i./ha.
3. The method as claimed in claim 1, wherein when penoxsulam is used at a dosage of 30g of a.i./ha and 60g of a.i./ha, the optimum safener pyraclofen is 1/6 of the dosage of penoxsulam, i.e. 5g of a.i./ha pyraclofen is effective in relieving the phytotoxicity of 30g of a.i./ha penoxsulam on wheat, and 10g of a.i./ha pyraclofen is effective in relieving the phytotoxicity of 60g of a.i./ha penoxsulam on wheat.
4. The method as claimed in claim 1, wherein the safener pyracloquinclorac and penoxsulam are mixed and applied to control annual weeds in the wheat field, and the addition of the safener does not reduce the control effect of penoxsulam on weeds in the wheat field.
5. The method as claimed in claim 1, wherein the application method comprises spraying stem and leaf at 2-5 leaf stage after wheat seedling.
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| US20060183637A1 (en) * | 2005-02-11 | 2006-08-17 | Loughner Daniel L | Penoxsulam as a turfgrass, vineyard and orchard floor herbicide |
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Application publication date: 20210730 |