CN110839637B - Cotton defoliation ripening composition and cotton defoliation ripening agent - Google Patents
Cotton defoliation ripening composition and cotton defoliation ripening agent Download PDFInfo
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- CN110839637B CN110839637B CN201911174718.1A CN201911174718A CN110839637B CN 110839637 B CN110839637 B CN 110839637B CN 201911174718 A CN201911174718 A CN 201911174718A CN 110839637 B CN110839637 B CN 110839637B
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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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
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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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
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Abstract
The invention relates to the technical field of pesticides, and particularly relates to a cotton defoliation ripening composition and a cotton defoliation ripening agent. The composition comprises, by weight, 0.01-80 parts of pyraflufen-ethyl and 0.1-80 parts of L-lysine. The effective components of the cotton defoliation ripener composition comprise pyraflufen-ethyl and L-lysine, and the cotton defoliation ripener composition has obvious synergistic effect on defoliation and ripening of cotton through a plurality of different action modes, is obviously superior to the effects of pyraflufen-ethyl single agent, L-lysine single agent, thidiazuron, diuron and other preparations, can accelerate ripening and defoliation processes while effectively reducing the dosage of different agents such as pyraflufen-ethyl and the like, and reduces production cost.
Description
Technical Field
The invention relates to the technical field of pesticides, and particularly relates to a cotton defoliation ripening composition and a cotton defoliation ripening agent.
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. At present, mechanical cotton harvesting is a great trend, and in order to ensure the quality of cotton during mechanical harvesting, the cotton needs to be defoliated and ripened timely. The prior defoliant single agent mainly comprises thidiazuron, defoliant, diuron, glyphosate, pyraflufen-ethyl and the like, and a defoliant compound preparation mainly comprises thidiazuron and diuron, and can be absorbed by plants 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 maturity is found, so that a novel efficient defoliating and ripening composition formula is screened out, and the economic value significance is achieved.
L-lysine, chemical name: l-2, 6-diaminohexanoic acid, which is an essential amino acid for human body, has been reported to have an effect of accelerating the abscission of leaves by L-lysine (fanzhen, a new development of amino acid pesticides [ J ] amino acids and biological resources, 1992, (3): 14-16.).
At present, no report of a cotton defoliation ripening composition consisting of L-lysine and pyraflufen-ethyl exists.
Disclosure of Invention
In view of the above, the invention provides a cotton defoliation ripening composition and a cotton defoliation ripening agent. The effective components of the cotton defoliation ripener composition comprise pyraflufen-ethyl and L-lysine, so that the cotton defoliation ripener composition has an obvious synergistic effect on defoliation and ripening of cotton, can accelerate defoliation of cotton, reduce the quantity of leaf scraps of machine-harvested cotton and improve the quality of cotton.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a cotton defoliation ripening composition which comprises, by weight, 0.01-80 parts of pyraflufen-ethyl and 0.1-80 parts of L-lysine.
Preferably, the composition comprises 0.1-50 parts of pyraflufen-ethyl and 1-60 parts of L-lysine in parts by weight.
Preferably, the composition consists of 0.5-20 parts of pyraflufen-ethyl and 40-50 parts of L-lysine in parts by weight.
In one embodiment of the invention, the composition comprises 0.5 part of pyraflufen-ethyl and 50 parts of L-lysine in parts by weight.
In another embodiment provided by the invention, the composition consists of 20 parts by weight of pyraflufen-ethyl and 40 parts by weight of L-lysine.
In another embodiment provided by the invention, the composition consists of 5 parts by weight of pyraflufen-ethyl and 40 parts by weight of L-lysine.
The invention also provides a cotton defoliation ripening agent which comprises the cotton defoliation ripening composition and an agriculturally and pharmaceutically acceptable auxiliary agent.
Preferably, the dosage form of the cotton defoliation ripener is an aqueous suspending agent, an aqueous dispersing granule or a dispersible oil suspending agent. The dosage form is not limited thereto.
Preferably, the aqueous suspending agent comprises the following components in percentage by weight: 0.01-80% of pyraflufen-ethyl, 0.1-80% of L-lysine, 2-6% of thickening agent, 2-12% of wetting agent, 1-6% of antifreezing agent, 2-12% of dispersing agent and water, wherein the balance is added to 100%;
the preparation method comprises the following steps: diluting L-lysine with water, adding pyraflufen-ethyl to obtain a mixed solution, adding a dispersant, an antifreezing agent and a wetting agent, grinding, mixing with a thickening agent, and uniformly shearing at a high speed.
Preferably, the components and weight percentages of the aqueous suspending agent are as follows: 0.1-50% of pyraflufen-ethyl, 1-60% of L-lysine, 2-6% 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: 0.5-20% of pyraflufen-ethyl, 40-50% of L-lysine, 2-6% 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%.
Preferably, the water dispersible granule comprises the following components in percentage by weight: 0.01-80% of pyraflufen-ethyl, 0.1-80% of L-lysine, 2-9% of dispersing agent, 3-16% of wetting agent, 1-6% of disintegrating agent and filler which are complemented to 100%;
the preparation method comprises the following steps: diluting L-lysine with water, adding pyraflufen-ethyl to obtain a mixed solution, adding a dispersing agent, a wetting agent, a disintegrating agent and a filler, pulverizing by using a jet mill, and granulating.
Preferably, the water dispersible granule comprises the following components in percentage by weight: 0.1-50% of pyraflufen-ethyl, 1-60% of L-lysine, 2-9% of a dispersing agent, 3-16% of a wetting agent, 1-6% of a disintegrating agent and the balance of a filler to 100%.
More preferably, the water dispersible granule comprises the following components in percentage by weight: 0.5-20% of pyraflufen-ethyl, 40-50% of L-lysine, 2-9% of a dispersing agent, 3-16% of a wetting agent, 1-6% of a disintegrating agent and the balance of a filler to 100%.
Preferably, the dispersible oil suspending agent comprises the following components in percentage by weight: 0.01-80% of pyraflufen-ethyl, 0.1-80% of L-lysine, 1-12% of stabilizer, 2-9% of dispersant, 1-3% of emulsifier, 1-5% of thickener, 0-3% of defoamer, 1-3% of antifreeze and vegetable oil for balancing to 100%;
the preparation method comprises the following steps: mixing pyraflufen-ethyl, L-lysine, a stabilizer, a dispersing agent, an emulsifier, a thickening agent, a defoaming agent, an antifreezing agent and vegetable oil, shearing at a high speed for dispersing, and sanding by using a sand mill.
Preferably, the dispersible oil suspending agent comprises the following components in percentage by weight: 0.1-50% of pyraflufen-ethyl, 1-60% of L-lysine, 1-12% of a stabilizer, 2-9% of a dispersant, 1-3% 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%.
More preferably, the dispersible oil suspension formulation comprises the following components in weight percent: 0.5-20% of pyraflufen-ethyl, 40-50% of L-lysine, 1-12% of a stabilizer, 2-9% of a dispersant, 1-3% 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%.
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;
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 thickening agent 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.
Preferably, the inorganic salt in the disintegrant is sodium sulfate, and other inorganic salt species are also within the scope of the present invention.
In the present invention, in addition to the YUS-110 emulsifier, the methyl oleate emulsifier, other emulsifiers suitable for use with vegetable oils are also within the scope of the present invention.
The invention also provides application of the cotton defoliation ripener composition in defoliation and ripening of cotton.
Preferably, the cotton defoliating ripener composition of the present invention is applied at a time when the cotton boll opening rate is 40% or more.
Preferably, the cotton defoliating ripener composition is applied for a period of 40-50% of the cotton boll opening rate.
The invention provides a cotton defoliation ripening composition and a cotton defoliation ripening agent. The composition comprises, by weight, 0.01-80 parts of pyraflufen-ethyl and 0.1-80 parts of L-lysine. Compared with the prior art, the cotton defoliation ripener composition and the defoliation ripener have the following beneficial effects:
1) the effective components of the cotton defoliating ripener composition comprise pyraflufen-ethyl and L-lysine, the pyraflufen-ethyl is a herbicide defoliant, the L-lysine is amino acid with the effect of accelerating the defoliation of leaves, the compounding of different components has obvious synergistic effect on the defoliating ripener of cotton through a plurality of different action modes, the effect is obviously superior to that of pyraflufen-ethyl single agent, L-lysine single agent, thidiazuron, diuron and other preparations, the ripening and defoliating processes can be accelerated while the dosage of different preparations such as pyraflufen-ethyl is effectively reduced, the production cost is reduced, and the cotton defoliating ripener composition is novel, efficient, low-toxicity and low-residue.
2) Aqueous suspensions have several advantages, such as: firstly, water is used as a matrix, can be quickly dispersed into water, is environment-friendly and safe to use, and has low cost; ② has no flash point, safe storage and transportation and high bioavailability.
3) Water dispersible granules have various advantages, such as: firstly, the paint does not contain organic solvent, and is safe to operators and environment; secondly, 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 caking and no wall adhesion, and can be recycled after being packaged; high content of effective components.
4) Oil suspensions have a number of advantages, such as: the diluting carrier is environment-friendly oil, and has good adhesiveness, good spreadability and strong rain wash resistance.
5) The defoliating ripener reduces the content of leaf scraps in cotton and reduces the pollution of leaves to machine-harvested cotton.
6) The defoliating ripener can effectively improve the yield of cotton and has no adverse effect on the fiber quality of the cotton.
7) The preparation method of the cotton defoliation ripener composition is simple and convenient, and is suitable for industrial production.
Detailed Description
The invention discloses a cotton defoliation ripening composition and a cotton defoliation ripening agent, and can be realized by appropriately improving process parameters by referring to the contents in the text by a person skilled in the art. It is expressly intended that all such similar substitutes and modifications which would be obvious to one skilled in the art are deemed to be included in the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
The raw material medicines or the auxiliary agents used in the cotton defoliation ripening composition and the cotton defoliation ripening agent provided by the invention can be purchased from the market.
The invention is further illustrated by the following examples:
example 1: 50.5% aqueous suspension
The formula (weight ratio) is as follows: 0.5% of pyraflufen-ethyl, 50% of L-lysine, 10% of a dispersing agent 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: firstly, diluting L-lysine by using water, then adding pyraflufen-ethyl to prepare a mixed solution, then adding an auxiliary dispersing agent NNO, glycol and fatty alcohol-polyoxyethylene ether, grinding, mixing with xanthan gum, and uniformly mixing by high-speed shearing to obtain the water suspension preparation.
Example 2: 60% water dispersible granule
The formula (weight ratio) is as follows: 20% of pyraflufen-ethyl, 40% of L-lysine, 8% of sodium dodecyl sulfate, 5% of SP-2836 polycarboxylate dispersant, 2% of sodium sulfate, 10% of kaolin and the balance of diatomite to 100%.
The preparation method comprises the following steps: diluting L-lysine by using water, adding pyraflufen-ethyl to prepare a mixed solution, adding an auxiliary agent, crushing by using an airflow crusher, and granulating to obtain the water dispersible granule.
Example 3: 45% dispersible oil suspension
The formula (weight ratio) is as follows: 5% of pyraflufen-ethyl, 40% of L-lysine, 10% of sodium lignosulfonate, 12% 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 pyraflufen-ethyl and L-lysine into a container, adding an emulsifier, a dispersant 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 cotton defoliation ripener composition (test group 1-3) of examples 1-3 of the present invention, 80% L-lysine SC (control group 1, 80% aqueous suspension, preparation method and auxiliary agent as in example 1), 2% pyraflufen-ethyl ME (control group 2), 540 g/L thidiazuron diuron (2: 1) SC (control group 3).
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 on a test farm of a cotton research institute of Chinese academy of agricultural sciences, the variety of the cotton is a Chinese cotton institute 79, the cotton is sown in 2018 in 4 months and 30 days, and the sowing rate is 666.7m per crop22.5 kg; 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 2018, 9, 15 and 15 days, and the cotton boll opening rate is about 50 percent.
Xinjiang Korla: the test is arranged in southern Xinjiang test base of cotton institute in Kuerle, Xinjiang, the cotton variety is Xinluzao No. 71, the cotton is sowed in 2018, 4 months and 18 days, the cotton is covered by a mulching film, and the 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 2018, 9 and 8 months, and the cotton boll opening rate is about 45%.
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.
4. Formula for calculation
5. Test results
As can be seen from Table 1, the following 6 treatments were applied to defoliating and ripening cotton in Anyang Henan. 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 control effects of defoliation and boll opening in 7 days after the application in example 1 are respectively 64.2% and 28.2%, and the theoretical control effects of defoliation and boll opening in 14 days after the application are respectively 83.7% and 48.1%; in example 1, the defoliation and boll opening control effects are 80.5% and 39.8% respectively 7 days after the application, and the defoliation and boll opening control effects are 97.5% and 66.2% respectively 14 days after the application. The defoliation and opening of the catkin effect 7 days and 14 days after the drug is taken in example 1 is larger than the corresponding theoretical effect.
As can be seen from Table 2, the following 6 treatments were applied to the cotton in Kurla in Xinjiang with defoliation and ripening effect. 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 control effects of defoliation and boll opening in 7 days after the application in example 1 are respectively 62.1% and 29.4%, and the theoretical control effects of defoliation and boll opening in 14 days after the application are respectively 84.4% and 49.6%; in example 1, the defoliation and boll opening control effects are 78.4% and 38.2% respectively 7 days after the administration, and 96.8% and 65.7% respectively 14 days after the administration. The defoliation and opening of the catkin effect 7 days and 14 days after the drug is taken in example 1 is larger than the corresponding theoretical effect.
In a word, the combination of the L-lysine and the pyraflufen-ethyl has obvious synergistic effect.
Meanwhile, as can be seen from tables 1 and 2, the defoliating ripening composition of examples 1 to 3 of the present invention is significantly superior to pyraflufen-ethyl, L-lysine and thidiazuron, which are single agents, and can accelerate defoliating speed of cotton, increase boll opening rate of cotton, reduce leaf debris content of cotton, increase quality and efficiency of mechanical cotton picking operation, and has no adverse effect on five indexes of cotton fiber quality (see tables 3 and 4).
TABLE 1 defoliation ripening agent for Cotton gossypii Henan Antang
TABLE 2 defoliation ripening agent for Cotton to ripen the Cotton, Kuerler, Xinjiang
TABLE 3 influence of Cotton defoliating ripeners on fiber quality of Henan Anyang Cotton
TABLE 4 influence of Cotton defoliating ripeners on fiber quality of Xinjiang Korla 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 (3)
1. The cotton defoliation and ripening composition is characterized by comprising 0.5 part of pyraflufen-ethyl and 50 parts of L-lysine in parts by weight.
2. A cotton defoliating ripener comprising the cotton defoliating ripener composition of claim 1 and an agriculturally and pharmaceutically acceptable adjuvant.
3. The cotton defoliating ripener of claim 2, wherein the formulation of the cotton defoliating ripener is an aqueous suspension, an aqueous dispersion granule or a dispersible oil suspension.
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| CN102258044A (en) * | 2011-05-25 | 2011-11-30 | 江苏龙灯化学有限公司 | Defoliating agent |
| CN104082329A (en) * | 2014-07-23 | 2014-10-08 | 江苏瑞东农药有限公司 | High-efficiency cotton defoliating and boll-increasing composition |
| CN108094430A (en) * | 2017-11-10 | 2018-06-01 | 浙江天丰生物科学有限公司 | A kind of cotton defoliation composition |
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| CN102258044A (en) * | 2011-05-25 | 2011-11-30 | 江苏龙灯化学有限公司 | Defoliating agent |
| CN104082329A (en) * | 2014-07-23 | 2014-10-08 | 江苏瑞东农药有限公司 | High-efficiency cotton defoliating and boll-increasing composition |
| CN108094430A (en) * | 2017-11-10 | 2018-06-01 | 浙江天丰生物科学有限公司 | A kind of cotton defoliation composition |
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