CN112640910A - Defoliation ripening composition containing thidiazuron and linuron - Google Patents
Defoliation ripening composition containing thidiazuron and linuron Download PDFInfo
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- CN112640910A CN112640910A CN202011528530.5A CN202011528530A CN112640910A CN 112640910 A CN112640910 A CN 112640910A CN 202011528530 A CN202011528530 A CN 202011528530A CN 112640910 A CN112640910 A CN 112640910A
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/30—Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl
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Abstract
The invention discloses a defoliation ripening composition containing thidiazuron and linuron, which comprises effective components and an auxiliary agent, wherein the effective components and the weight ratio in the defoliation ripening composition are as follows: 0.1-90% of thidiazuron and 0.1-90% of linuron. The composition is prepared by compounding thidiazuron and linuron, and the compounding of the thidiazuron and the linuron has obvious synergistic effect on defoliation and ripening of cotton and defoliation of hot pepper, and is obviously superior to the effects of preparations such as a thidiazuron single agent, a linuron single agent, thidiazuron and diuron.
Description
Technical Field
The invention relates to a defoliation ripening composition, and belongs to the technical field of pesticides.
Background
Cotton is an important multipurpose economic crop, can be made into fabrics of various specifications, and can also be used for extracting edible oil by a certain process, so that the cotton plays an important role in the agricultural and economic patterns of China. The cotton has unlimited growth habit, but is influenced by weather conditions, when frost withers come every year, most cotton bolls in most cotton areas in China cannot complete boll opening, a part of cotton bolls cannot mature in late autumn, and a part of cotton bolls become frost flowers, so that the quality of the cotton cannot be guaranteed.
Meanwhile, the manual picking is used as a main harvesting mode of the hot pepper, and the operation mode has higher labor intensity, relatively lower efficiency and higher cost, so that the industrialization process of the hot pepper is limited to a certain extent.
Therefore, mechanical harvesting of cotton and pepper is a great trend, and in order to ensure the quality of the cotton and pepper during mechanical harvesting, the cotton and pepper need to be defoliated and ripened timely. At present, a single defoliant mainly comprises thidiazuron, defoliant, diuron, glyphosate and the like, and a defoliant compound preparation mainly comprises thidiazuron and diuron, and can be absorbed by plants on cotton and hot pepper to induce the formation of petiole abscission layers, so that the falling of leaves is accelerated. At present, no plant regulator capable of defoliating and accelerating ripening is found, so that a novel efficient defoliating and ripening composition formula is screened out, and the important economic value significance is achieved.
Thidiazuron (TDZ) is also known as defoliation, defoliation urea, Dropp, chemical name: 1-phenyl-3- (1,2,3, -thiadiazol-5-yl) urea. The thidiazuron is used as defoliant in cotton and hot pepper plantation. After being absorbed by plants, the defoliating agent can promote the natural formation of the separated tissues between the petioles and the stems to shed, and is a good defoliating agent. Therefore, the patent of adopting thidiazuron to prepare defoliant is more.
The subject group is engaged in the research of the cotton defoliating ripener for a long time, and the applicant applies 2 patents in 2019, wherein CN201911177404.7 adopts thidiazuron and L-lysine to compound the cotton defoliating ripener, and CN201910823379.9 adopts thidiazuron and glyphosine to compound the cotton defoliating ripener. The applicant finds in subsequent studies that the above-mentioned patent application of the invention has the following problems to be further improved:
1) the defoliating ripener is only suitable for defoliating and ripening cotton and has poor defoliating effect when being used for other crops, but the research of the invention discovers that the hot pepper has higher requirement on defoliation, so that the development of the defoliating ripener also suitable for the hot pepper is needed;
2) the effective component dosage of the two patent applications is more than or equal to 180 g/hectare, the dosage of the medicament is large, and the dosage of the medicament needs to be further reduced.
In order to solve the problems, the applicant provides a defoliating ripener which can be used for preparing hot peppers by compounding linuron and thidiazuron through continuous tests and researches. Through search, no report of the defoliation ripening composition for cotton and hot pepper consisting of linuron and thidiazuron is found at present.
Linuron, chemical name: 1-methoxy-1-methyl-3- (3, 4-dichlorophenyl) urea and urea herbicide, have good control effect on annual gramineous weeds such as crabgrass, green bristlegrass, polygonaceae weeds and the like, and are suitable for being applied to fields such as celery, leguminous vegetable fields, carrots, potatoes, shallots and the like.
Disclosure of Invention
In view of the above problems, the present invention provides a defoliating ripening composition containing thidiazuron and linuron. The composition is prepared by compounding thidiazuron and linuron, has obvious synergistic effect on defoliation ripening of cotton and defoliation of pepper, accelerates boll opening of cotton, accelerates defoliation of cotton and pepper, reduces leaf debris amount of mechanically picked cotton and pepper, improves quality of cotton and pepper, and reduces usage amount of pesticide.
The technical scheme of the invention is as follows: the defoliation ripening composition containing thidiazuron and linuron is characterized by comprising effective components and an auxiliary agent, wherein the effective components and the weight ratio of the effective components in the defoliation ripening composition are as follows: 0.1-90% of thidiazuron and 0.1-90% of linuron.
Preferably, the weight ratio of the effective components in the defoliation ripening composition is as follows: 1-50% of thidiazuron and 1-60% of linuron.
More preferably, the weight ratio of the effective components in the defoliation ripening composition is as follows: 1-30% of thidiazuron and 1-30% of linuron.
The auxiliary agent is an agriculturally and pharmaceutically acceptable auxiliary agent. Preferably, the dosage form of the cotton and pepper defoliation ripener is an aqueous suspension, an aqueous dispersion granule or a dispersible oil suspension. The dosage form is not limited thereto.
The water suspending agent comprises the following components in percentage by weight: 0.1-90% of thidiazuron, 0.1-90% of linuron, 1-15% of dimethyl sulfoxide (cosolvent), 1-6% of thickening agent, 2-12% of wetting agent, 1-6% of antifreezing agent, 2-12% of dispersing agent and water, and the balance is added to 100%.
The preparation method comprises the following steps: diluting linuron with dimethyl sulfoxide, adding thidiazuron to obtain a mixed solution, adding a dispersing agent, an antifreezing agent and a wetting agent, grinding, mixing with a thickening agent, and shearing at a high speed and mixing uniformly.
Preferably, the components and weight percentages of the aqueous suspending agent are as follows: 1-50% of thidiazuron, 1-60% of linuron, 1-15% of dimethyl sulfoxide (cosolvent), 1-6% of thickening agent, 2-12% of wetting agent, 1-6% of antifreezing agent, 2-12% of dispersing agent and water, and the balance is added to 100%.
More preferably, the components and weight percentages of the aqueous suspending agent are as follows: 5-40% of thidiazuron, 1-40% of linuron, 1-15% of dimethyl sulfoxide (cosolvent), 1-6% of thickening agent, 2-12% of wetting agent, 1-6% of antifreezing agent, 2-12% of dispersing agent and water, wherein the balance is up to 100%.
The water dispersible granule comprises the following components in percentage by weight: 0.1-90% of thidiazuron, 0.1-90% of linuron, 1-15% of dimethyl sulfoxide (cosolvent), 2-9% of dispersant, 2-16% of wetting agent, 1-6% of disintegrant and the balance of filler to 100%.
The preparation method comprises the following steps: diluting linuron with dimethyl sulfoxide, adding thidiazuron to obtain mixed solution, adding disperser, wetting agent, disintegrant and filler, pulverizing with jet mill, and granulating.
Preferably, the water dispersible granule comprises the following components in percentage by weight: 1-60% of thidiazuron, 1-60% of linuron, 1-15% of dimethyl sulfoxide (cosolvent), 2-9% of dispersant, 2-16% of wetting agent, 1-6% of disintegrant and the filler is added to 100%.
More preferably, the water dispersible granule comprises the following components in percentage by weight: 10-50% of thidiazuron, 10-50% of linuron, 1-15% of dimethyl sulfoxide (cosolvent), 2-9% of dispersant, 2-16% of wetting agent, 1-6% of disintegrating agent and the balance of filler to 100%.
The dispersible oil suspending agent comprises the following components in percentage by weight: 0.1-90% of thidiazuron, 0.1-90% of linuron, 1-15% of dimethyl sulfoxide (cosolvent), 1-12% of stabilizer, 2-9% of dispersant, 1-12% of emulsifier, 1-5% of thickener, 0-3% of defoamer, 1-3% of antifreeze and the balance of vegetable oil to 100%;
the preparation method comprises the following steps: mixing thidiazuron, linuron, dimethyl sulfoxide, a stabilizer, a dispersant, an emulsifier, a thickener, a defoaming agent, an antifreezing agent and vegetable oil, shearing at a high speed for dispersion, and sanding by using a sand mill.
Preferably, the dispersible oil suspending agent comprises the following components in percentage by weight: 1-50% of thidiazuron, 1-80% of linuron, 1-15% of dimethyl sulfoxide (cosolvent), 1-12% of stabilizer, 2-9% of dispersant, 1-12% of emulsifier, 1-5% of thickener, 0-3% of defoamer, 1-3% of antifreeze and the balance of vegetable oil to 100%.
More preferably, the dispersible oil suspension formulation comprises the following components in weight percent: 1-20% of thidiazuron, 40-70% of linuron, 1-15% of dimethyl sulfoxide (cosolvent), 1-12% of stabilizer, 2-9% of dispersant, 1-12% of emulsifier, 1-5% of thickener, 0-3% of defoamer, 1-3% of antifreeze and the balance of vegetable oil to 100%.
Preferably, the wetting agent is one or more of Terspense 4896, sodium dodecyl sulfate, Morwet EFW, sodium dodecyl benzene sulfonate, butyl naphthalene sulfonic acid and fatty alcohol-polyoxyethylene ether.
Preferably, the dispersing agent is one or more of Morwet D-425, sodium lignosulfonate, Terspense 2500, fatty alcohol-polyoxyethylene ether, dispersing agent NNO, naphthalenesulfonate and polycarboxylate dispersing agent.
Preferably, the disintegrating agent is one or more of inorganic salt, sodium carboxymethylcellulose and bentonite; the inorganic salt is preferably sodium sulfate.
Preferably, the filler is one or more of kaolin, diatomite, bentonite and pottery clay.
Preferably, the antifreezing agent is one or more of ethylene glycol, glycerol, propylene glycol and glycerol.
Preferably, the thickener is one or more of xanthan gum, magnesium aluminum silicate, polyethylene glycol, carboxymethyl cellulose and carboxyethyl cellulose.
Preferably, the stabilizer is one or more of epichlorohydrin, epoxidized soybean oil and sodium benzoate.
Preferably, the emulsifier is one or two of YUS-110 emulsifier and methyl oleate.
Preferably, the defoaming agent is one or two of silicone oil and silicone compound.
The invention also discloses application of the defoliation ripening composition in accelerating boll opening of cotton and accelerating defoliation of the cotton.
The invention also discloses application of the defoliation ripening composition in accelerating defoliation of hot peppers.
The invention has the following effects:
1) the composition is prepared by compounding the thidiazuron and the linuron, the compounding of the thidiazuron and the linuron has obvious synergistic effect on defoliation ripening of cotton and hot pepper, the effect is obviously superior to that of preparations such as a single thidiazuron preparation, a single linuron preparation, a thidiazuron preparation, a diuron preparation and the like, the dosage of active ingredients can be reduced (10% lower than that of the thidiazuron preparation and 60% lower than that of the thidiazuron preparation), the ripening acceleration (the boll opening pesticide effect of the cotton is obviously improved) and the defoliation process (the defoliation pesticide effect of the cotton and the hot pepper is obviously improved), the production cost is reduced, and the composition is a novel, high-efficiency, low-toxicity and low-residue defoliation ripening agent.
2) The invention improves the defoliation effect of cotton and pepper, reduces the leaf scrap content in the cotton and pepper, and reduces the pollution of leaves to machine-harvested cotton. The defoliating ripener accelerates the opening of cotton bolls, has no adverse effect on the fiber quality of cotton and has little damage to pepper fruits.
3) The preparation of the invention takes a water suspending agent, a water dispersible granule or a dispersible oil suspending agent as the main material, wherein the water suspending agent takes water as a matrix, can be rapidly dispersed into water, is environment-friendly and safe to use, and has low cost; no flash point, safe storage and transportation and high bioavailability. The water dispersible granule has the advantages that the product has no dust in the processes of packaging, storing and using, and the harm of the dust to human bodies is reduced; the preparation has good fluidity, no adhesion, no agglomeration, no wall adhesion, and recoverable package; high content of effective components. The oil suspending agent has the advantages that the diluting carrier is environment-friendly oil, and the oil suspending agent has good adhesiveness, spreadability and strong rain erosion resistance. The preparation method of the preparation is simple and convenient, and is suitable for industrial production.
Detailed Description
The invention is further illustrated by the following examples. The raw material medicines or the auxiliary agents used by the invention can be purchased from the market.
Example 1: 60% aqueous suspension
The formula (weight ratio) is as follows: 20% of thidiazuron, 40% of linuron, 10% of dimethyl sulfoxide, 10% of a dispersant NNO, 4% of fatty alcohol-polyoxyethylene ether, 2% of ethylene glycol, 1% of xanthan gum and the balance of water to 100%.
The preparation method comprises the following steps: diluting linuron with dimethyl sulfoxide, adding thidiazuron to prepare a mixed solution, adding an auxiliary dispersant NNO, glycol, water and fatty alcohol-polyoxyethylene ether, grinding, mixing with xanthan gum, and shearing at a high speed and mixing uniformly to obtain the aqueous suspension.
Example 2: 80% water dispersible granule
The formula (weight ratio) is as follows: 40% of thidiazuron, 40% of linuron, 2% of sodium dodecyl sulfate, 5% of dimethyl sulfoxide, 5% of SP-2836 polycarboxylate dispersant, 2% of sodium sulfate, 5% of kaolin and the balance of diatomite to 100%.
The preparation method comprises the following steps: diluting linuron with dimethyl sulfoxide, adding thidiazuron to prepare a mixed solution, adding auxiliary agents of sodium dodecyl sulfate, sodium sulfate, SP-2836 polycarboxylate dispersing agent, kaolin and diatomite, crushing by an airflow crusher, and granulating to obtain the water dispersible granule.
Example 3: 65% dispersible oil suspension
The formula (weight ratio) is as follows: 15% of thidiazuron, 50% of linuron, 10% of dimethyl sulfoxide, 5% of sodium lignosulfonate, 10% of YUS-110 emulsifier, 3% of ethylene glycol, 1% of xanthan gum, 2% of epoxidized soybean oil, 1% of silicone oil and the balance of vegetable oil (soybean oil) to 100%.
The preparation method comprises the following steps: weighing thidiazuron and linuron into a container, adding dimethyl sulfoxide, sodium lignosulfonate, YUS-110 emulsifier, ethylene glycol, xanthan gum, epoxidized soybean oil, silicone oil and soybean oil, mixing, shearing at a high speed for dispersion, sanding by using a sand mill, and filtering to obtain the dispersible oil suspending agent.
Test example: field test
1. Reagent for testing
The test agents were the defoliating ripener composition (test group 1-3), 50% linuron SC (control group 1, 50% water suspension, preparation method and auxiliary agent as in example 1), 50% thidiazuron WP (control group 2, kazalong biotechnology limited), 50% thidiazuron WP (control group 3, kazalong biotechnology limited), and 540 g/l thidiazuron diuron (2: 1) SC (control group 4, bayer corporation), respectively, according to examples 1-3 of the present invention.
2. Design of experiments
The test is arranged to be carried out in 2 different areas, the pesticide application device is a knapsack manual sprayer for Singapore and Linong, and the mu spray volume is 600 L.hm-2And (5) liquid medicine. The specific outline of the test is as follows:
henan Anyang: the test arrangement is in the research of cotton of Chinese academy of agricultural sciencesIn the farm tested, the cotton variety is Chinese cotton 79, and the seeding rate is 2.5kg/666.7m in 24 days 4 months in 20202(ii) a Row spacing of 0.80m, plant spacing of 0.25m, and planting density of 5.5 ten thousand plants per hm-2The cotton growth and field management are uniform. The application is carried out for 1 time in 9 months and 15 days in 2020, and the cotton boll opening rate is about 40 percent.
Henan Anyang: the test is arranged on a test farm of a cotton research institute of Chinese academy of agricultural sciences, the pepper variety is Yidu red 003, the pepper variety is transplanted in 20 days in 5 months in 2020, the transplanting density is 5000 holes/mu, the row spacing is 0.40m, the plant spacing is 0.30m, and the pepper growth vigor is uniform and consistent with field management. The medicine is applied for 1 time in 18 days 9/2020.
Xinjiang Utun: the test is arranged in southern Xinjiang test base of cotton institute in Qutun, Xinluzao No. 71, sowing in 18 days 4 months in 2020, covering with mulching film, and planting density is 22.5 ten thousand.hm-2The row spacing (0.25+0.50+0.25) m, the plant spacing (0.095 m) and the cotton growth and field management are uniform and consistent. The application is carried out for 1 time in 9 months and 2 days in 2020, and the cotton boll opening rate is about 40 percent.
Xinjiang Utun: the test is arranged in southern Xinjiang test base of cotton institute in Qutun, Xinjiang, the pepper variety is Honglong 18, the pepper is transplanted in 21 days 4 months in 2020, the transplanting density is 5000 holes/mu, the row spacing is 0.40m, the plant spacing is 0.30m, and the pepper growth vigor is uniform with field management. The medicine is applied 1 time in 9/2/2020.
3. Survey content
From the middle 4 rows, 20 representative cotton plants were selected for spotting per cell and labeled. The total number of leaves, total number of bolls and number of bolls opened of cotton at each point of each cell were investigated on the day of application. The number of the remaining leaves, the total number of the bolls and the boll opening rate of each plant-fixed cotton at each point are investigated at 7d and 14d after the pesticide is applied, and the leaf falling rate and the boll opening rate of each investigation are calculated respectively.
From the middle 4 rows, 20 representative pepper plants were selected for spot-fixing in each cell and labeled. The total number of leaves of each point of the pepper in each cell was investigated on the day of application. The number of residual leaves of each spot of the pepper plants was investigated at 7d and 14d after the drug administration, and the leaf shedding rate and the drug effect of the pepper plants at each investigation were calculated.
4. Formula for calculation
5. Test results
The test results are shown in tables 1-6 below. As can be seen from tables 1-4, 50% linuron SC single dose as herbicide was not effective for defoliation and boll opening of cotton, capsicum, and both defoliation and boll opening control were 0.
As can be seen from Table 1, the following 6 treatments were applied to defoliating and ripening cotton in Anyang Henan. Wherein the effective component dosage of the invention in the embodiment 1 is the sum of the effective component dosages of the comparison 1 and the comparison 2, and the theoretical control effects of defoliation and boll opening in 7 days after the drug in the embodiment 1 are respectively 11.4 percent and 4.1 percent and the theoretical control effects of defoliation and boll opening in 14 days after the drug in the embodiment 1 are respectively 17.6 percent and 9.6 percent by calculation; however, the experiments prove that the defoliation and boll opening prevention effect of 7 days after the drug is 73.5 percent and 35.8 percent respectively in example 1, and the defoliation and boll opening prevention effect of 14 days after the drug is 89.3 percent and 58.7 percent respectively. The actual drug effects of defoliation and opening of the catkin 7 days and 14 days after the drug administration in example 1 are all larger than the corresponding theoretical drug effects.
As can be seen from table 2, the following 6 treatments were sprayed to have defoliating effect on the capsicum of anhang in hannan of hannan. Wherein the dosage of the effective components in the embodiment 1 is the sum of the dosages of the effective components in the comparison 1 and the comparison 2, and the defoliation theoretical prevention effect of the embodiment 1 in 7 days and 14 days after the application is 8.2 percent and 14.5 percent respectively; however, the test proves that the defoliation control effect of example 1 is 61.2 percent and 88.6 percent respectively after 7 days and 14 days. The actual efficacy of the defoliation effect of example 1 was greater than the corresponding theoretical efficacy in both 7 and 14 days after administration.
As can be seen from Table 3, the defoliation ripening effect was obtained for all cotton at Kunit Xinjiang by spraying the following 6 treatments. Wherein the dosage of the effective components in the invention in example 1 is the sum of the dosages of the effective components in comparison 1 and comparison 2, the theoretical prevention effects of defoliation and boll opening in 7 days after the application in example 1 are respectively 10.6 percent and 4.7 percent, and the theoretical prevention effects of defoliation and boll opening in 14 days after the application are respectively 18.5 percent and 9.1 percent; however, the experiments prove that the defoliation and boll opening prevention effects of the drug of example 1 in 7 days are respectively 75.3 percent and 33.0 percent, and the defoliation and boll opening prevention effects of the drug of 14 days are respectively 89.1 percent and 55.2 percent. The actual drug effects of defoliation and opening of the catkin 7 days and 14 days after the drug administration in example 1 are all larger than the corresponding theoretical drug effects.
As can be seen from table 4, the following 6 treatments were sprayed to have defoliating effect on capsicum at henan quinitu. Wherein the dosage of the effective components in the embodiment 1 is the sum of the dosages of the effective components in the comparison 1 and the comparison 2, and the defoliation theoretical prevention effect of the embodiment 1 in 7 days and 14 days after the application is respectively 9.7 percent and 20.1 percent; however, the test proves that the defoliation control effect of example 1 is 63.0 percent and 87.2 percent respectively after 7 days and 14 days. The actual efficacy of the defoliation effect of example 1 was greater than the corresponding theoretical efficacy in both 7 and 14 days after administration.
In a word, the combination of the linuron and the thidiazuron medicament has obvious synergistic effect.
Meanwhile, as can be seen from tables 1 and 3, the defoliating ripening composition of examples 1 to 3 of the present invention is significantly superior to single agents thidiazuron, linuron and conventional agents thidiazuron and diuron, and can accelerate the defoliating speed of cotton, increase the boll opening rate of cotton, reduce the leaf debris content of cotton, increase the quality and efficiency of mechanical cotton picking operation, and has no adverse effect on five indexes of cotton fiber quality (see tables 5 and 6). It can be seen from tables 1 and 3 simultaneously that: under the condition that the dosage of 50 percent thidiazuron WP is 225 g/hectare, the effects of defoliating and opening cotton are better. In the embodiment 1 of the invention, under the condition that the defoliation and boll opening rate of cotton are better, the using amount of the effective components is reduced by 10% compared with 540 g/L thidiazuron-diuron SC, and is reduced by 60% compared with 50% of thidiazuron WP single dose.
As can be seen from tables 2 and 4, the defoliating compositions of examples 1-3 of the present invention are significantly superior to single dose thidiazuron, linuron and conventional thidiazuron diuron, and can accelerate the defoliating speed of pepper, reduce the leaf debris content of pepper, and improve the quality and efficiency of mechanical cotton picking operation. It can be seen from tables 2 and 4 at the same time that: the pepper defoliation effect is better when the dosage of 50 percent thidiazuron WP is 225 g/hectare. In the case that the pepper is better in defoliation, the effective component dosage of the pepper is reduced by 10% compared with 540 g/L thidiazuron and diuron SC, and is reduced by 60% compared with 50% of thidiazuron WP single dose.
TABLE 1 defoliation ripening agent for Cotton gossypii Henan Antang
TABLE 2 defoliating Effect of Pepper defoliant on Henan Anyang cotton
TABLE 3 defoliation ripening agent for Cotton to ripen cotton, Quinun Xinjiang
TABLE 4 defoliating effect of pepper defoliant on Xinjiang cotton
TABLE 5 influence of Cotton defoliating ripeners on fiber quality of Henan Anyang Cotton
TABLE 6 influence of Cotton defoliating ripeners on fiber quality of Xinjiang Quinun Cotton
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The defoliation ripening composition containing thidiazuron and linuron is characterized by comprising effective components and an auxiliary agent, wherein the effective components and the weight ratio of the effective components in the defoliation ripening composition are as follows: 0.1-90% of thidiazuron and 0.1-90% of linuron.
2. The defoliation ripening composition of claim 1, comprising thidiazuron and linuron in a weight ratio of the active ingredients in the defoliation ripening composition of: 1-50% of thidiazuron and 1-60% of linuron.
3. The defoliation ripening composition containing thidiazuron and linuron as claimed in claim 2, wherein the weight ratio of the effective components in the defoliation ripening composition is as follows: 1-30% of thidiazuron and 1-30% of linuron.
4. The defoliation ripening composition of claim 1, which is in the form of an aqueous suspension, water dispersible granules or dispersible oil suspension.
5. The defoliation and ripening composition comprising thidiazuron and linuron as claimed in claim 4, wherein said aqueous suspension comprises the following components in percentage by weight: 0.1-90% of thidiazuron, 0.1-90% of linuron, 1-15% of dimethyl sulfoxide, 1-6% of thickening agent, 2-12% of wetting agent, 1-6% of antifreezing agent, 2-12% of dispersing agent and water, and the balance is added to 100%.
6. The composition containing thidiazuron and linuron for defoliation and ripening as claimed in claim 4, wherein the water dispersible granules comprise the following components in percentage by weight: 0.1-90% of thidiazuron, 0.1-90% of linuron, 1-15% of dimethyl sulfoxide, 2-9% of a dispersing agent, 2-16% of a wetting agent, 1-6% of a disintegrating agent and the balance of a filler to 100%.
7. The defoliation ripening composition of claim 4, comprising thidiazuron and linuron, wherein said dispersible oil suspension comprises the following components in percentage by weight: 0.1-90% of thidiazuron, 0.1-90% of linuron, 1-15% of dimethyl sulfoxide, 1-12% of a stabilizer, 2-9% of a dispersant, 1-12% of an emulsifier, 1-5% of a thickener, 0-3% of a defoaming agent, 1-3% of an antifreezing agent and the balance of vegetable oil to 100%.
8. A defoliating and ripening composition comprising thidiazuron and linuron according to any one of claims 5 to 7, which is characterized in that,
the wetting agent is one or more than two of Terspense 4896, sodium dodecyl sulfate, Morwet EFW, sodium dodecyl benzene sulfonate, butyl naphthalene sulfonic acid and fatty alcohol-polyoxyethylene ether;
the dispersing agent is one or more than two of Morwet D-425, sodium lignosulfonate, Terspense 2500, fatty alcohol-polyoxyethylene ether, dispersing agent NNO, naphthalenesulfonate and polycarboxylate dispersing agent;
the disintegrating agent is one or more of inorganic salt, sodium carboxymethylcellulose and bentonite;
the filler is one or more than two of kaolin, diatomite, bentonite and argil;
the antifreezing agent is one or more of ethylene glycol, glycerol, propylene glycol and glycerol;
the thickening agent is one or more than two of xanthan gum, magnesium aluminum silicate, polyethylene glycol, carboxymethyl cellulose and carboxyethyl cellulose;
the stabilizer is one or more than two of epichlorohydrin, epoxidized soybean oil and sodium benzoate;
the emulsifier is one or two of YUS-110 emulsifier and methyl oleate;
the defoaming agent is one or two of silicone oil and silicone compounds.
9. Use of a defoliating ripening composition as claimed in any one of claims 1 to 8 to accelerate boll opening and defoliation of cotton.
10. Use of a defoliating ripening composition as claimed in any one of claims 1 to 8 to accelerate defoliation of pepper.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4613354A (en) * | 1982-06-11 | 1986-09-23 | Schering Aktiengesellschaft | Composition for defoliating plants |
| US4824467A (en) * | 1986-12-18 | 1989-04-25 | Schering Aktiengesellschaft | Composition for defoliation of plants |
| CN107691462A (en) * | 2017-11-10 | 2018-02-16 | 陕西上格之路生物科学有限公司 | A kind of defoliant containing Thidiazuron and benzene peptide amino acid |
| CN107787998A (en) * | 2017-11-07 | 2018-03-13 | 江苏辉丰生物农业股份有限公司 | A kind of cotton growth regulator composition |
| CN107853320A (en) * | 2017-11-10 | 2018-03-30 | 浙江天丰生物科学有限公司 | One kind compounding cotton defoliation composition |
| CN111726989A (en) * | 2017-11-17 | 2020-09-29 | Upl有限公司 | Novel combination of defoliants |
-
2020
- 2020-12-22 CN CN202011528530.5A patent/CN112640910B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4613354A (en) * | 1982-06-11 | 1986-09-23 | Schering Aktiengesellschaft | Composition for defoliating plants |
| US4824467A (en) * | 1986-12-18 | 1989-04-25 | Schering Aktiengesellschaft | Composition for defoliation of plants |
| CN107787998A (en) * | 2017-11-07 | 2018-03-13 | 江苏辉丰生物农业股份有限公司 | A kind of cotton growth regulator composition |
| CN107691462A (en) * | 2017-11-10 | 2018-02-16 | 陕西上格之路生物科学有限公司 | A kind of defoliant containing Thidiazuron and benzene peptide amino acid |
| CN107853320A (en) * | 2017-11-10 | 2018-03-30 | 浙江天丰生物科学有限公司 | One kind compounding cotton defoliation composition |
| CN111726989A (en) * | 2017-11-17 | 2020-09-29 | Upl有限公司 | Novel combination of defoliants |
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| CN112640910B (en) | 2022-03-15 |
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