CN111937880A - Cotton defoliating agent - Google Patents
Cotton defoliating agent Download PDFInfo
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- CN111937880A CN111937880A CN202010827711.1A CN202010827711A CN111937880A CN 111937880 A CN111937880 A CN 111937880A CN 202010827711 A CN202010827711 A CN 202010827711A CN 111937880 A CN111937880 A CN 111937880A
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- China
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- parts
- cotton
- agent
- defoliating
- fomesafen
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 48
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 36
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- BGZZWXTVIYUUEY-UHFFFAOYSA-N fomesafen Chemical compound C1=C([N+]([O-])=O)C(C(=O)NS(=O)(=O)C)=CC(OC=2C(=CC(=CC=2)C(F)(F)F)Cl)=C1 BGZZWXTVIYUUEY-UHFFFAOYSA-N 0.000 claims abstract description 22
- OXHDYFKENBXUEM-UHFFFAOYSA-N glyphosine Chemical compound OC(=O)CN(CP(O)(O)=O)CP(O)(O)=O OXHDYFKENBXUEM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 18
- 235000017557 sodium bicarbonate Nutrition 0.000 claims abstract description 18
- HWDVTQAXQJQROO-UHFFFAOYSA-N cyclopropylazanide Chemical compound [NH-]C1CC1 HWDVTQAXQJQROO-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000002837 defoliant Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerol group Chemical group OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 7
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 239000000080 wetting agent Substances 0.000 claims description 6
- 239000003995 emulsifying agent Substances 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical group [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 235000011187 glycerol Nutrition 0.000 claims description 3
- 239000003906 humectant Substances 0.000 claims description 2
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 2
- 229920000053 polysorbate 80 Polymers 0.000 claims description 2
- 238000009472 formulation Methods 0.000 claims 1
- 230000035613 defoliation Effects 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 15
- 239000000575 pesticide Substances 0.000 abstract description 7
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 241000219146 Gossypium Species 0.000 description 31
- 241000196324 Embryophyta Species 0.000 description 14
- 239000007787 solid Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 239000003814 drug Substances 0.000 description 6
- 230000012010 growth Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000005070 ripening Effects 0.000 description 5
- 240000002024 Gossypium herbaceum Species 0.000 description 4
- 235000004341 Gossypium herbaceum Nutrition 0.000 description 4
- HFCYZXMHUIHAQI-UHFFFAOYSA-N Thidiazuron Chemical compound C=1C=CC=CC=1NC(=O)NC1=CN=NS1 HFCYZXMHUIHAQI-UHFFFAOYSA-N 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- UDPGUMQDCGORJQ-UHFFFAOYSA-N (2-chloroethyl)phosphonic acid Chemical compound OP(O)(=O)CCCl UDPGUMQDCGORJQ-UHFFFAOYSA-N 0.000 description 3
- 239000005976 Ethephon Substances 0.000 description 3
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- JLIDBLDQVAYHNE-YKALOCIXSA-N (+)-Abscisic acid Chemical compound OC(=O)/C=C(/C)\C=C\[C@@]1(O)C(C)=CC(=O)CC1(C)C JLIDBLDQVAYHNE-YKALOCIXSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000857 drug effect Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000029553 photosynthesis Effects 0.000 description 2
- 238000010672 photosynthesis Methods 0.000 description 2
- 239000005648 plant growth regulator Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 108010051210 beta-Fructofuranosidase Proteins 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- AIMMVWOEOZMVMS-UHFFFAOYSA-N cyclopropanecarboxamide Chemical compound NC(=O)C1CC1 AIMMVWOEOZMVMS-UHFFFAOYSA-N 0.000 description 1
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 description 1
- FCRACOPGPMPSHN-UHFFFAOYSA-N desoxyabscisic acid Natural products OC(=O)C=C(C)C=CC1C(C)=CC(=O)CC1(C)C FCRACOPGPMPSHN-UHFFFAOYSA-N 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000002363 herbicidal effect Effects 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 235000011073 invertase Nutrition 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- UITGLCUULOSTEG-UHFFFAOYSA-N n-cyclopropylpropanamide Chemical compound CCC(=O)NC1CC1 UITGLCUULOSTEG-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
- 239000004563 wettable powder Substances 0.000 description 1
Classifications
-
- 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
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/04—Sulfonic acids; Derivatives thereof
- A01N41/06—Sulfonic acid amides
-
- 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
- A01N25/30—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 characterised by the surfactants
-
- 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
- A01N53/00—Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof
-
- 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
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
- A01N57/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals
-
- 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
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a cotton defoliating agent. Belongs to the technical field of pesticides. The defoliant comprises the following components in parts by weight: 20-30 parts of cyclopropylamide, 30-50 parts of fomesafen, 10-15 parts of glyphosine and 10-15 parts of sodium bicarbonate. Compared with the prior art, the invention has the following beneficial effects: the composition has a synergistic effect, and the defoliating effect is far better than that of a component used alone; the defoliation of cotton can be promoted, the boll opening of cotton can be accelerated, the yield of cotton can be improved, and the quality of cotton is not influenced; the good activity and defoliation effect can be still kept in the environment of lower than 20 ℃; the dosage is less, and the environment is not polluted.
Description
Technical Field
The invention relates to the technical field of pesticides, and particularly relates to a cotton defoliant.
Background
Cotton is an important economic crop, can be made into fabrics of various specifications, can also be used for extracting edible oil, and plays an important role in the agricultural and economic pattern of China. But in recent years, the economic benefit of cotton is obviously reduced due to shortage of labor resources and large rise of labor cost. In order to reduce the cost and improve the cotton planting benefit, the realization of fully-mechanized cotton picking is the inevitable choice for the development of the cotton industry. Defoliation and ripening are important prerequisites for mechanical cotton picking. The defoliation and ripening method mainly adopts a plant growth regulator to intervene in the physiological and biochemical processes of cotton, accelerate the plant aging and realize defoliation.
Currently, the common cotton defoliants include thidiazuron and ethephon. The principle of the Thidiazuron defoliation is that after the Thidiazuron defoliation is absorbed by plants, abscisic acid and ethylene can be generated by the cotton plants, so that a separation layer is formed between a leaf stalk and the cotton plants, and cotton leaves automatically shed. However, thidiazuron has high cost, slow defoliation speed and poor low temperature resistance. Ethephon has good ripening effect, but has poor defoliation effect, thereby influencing the influence of mechanical harvesting on the quality of cotton.
In conclusion, the problem to be solved by the technical personnel in the field is how to provide a cotton defoliating agent with low temperature resistance and good defoliating effect.
Disclosure of Invention
In view of the above, the present invention provides a cotton defoliating agent.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cotton defoliating agent comprises the following components in parts by weight: 20-30 parts of cyclopropylamide, 30-50 parts of fomesafen, 10-15 parts of glyphosine and 10-15 parts of sodium bicarbonate.
The cyclopropyl propionamide is an important plant growth regulator containing a cyclopropane structure, and can promote cotton seed flowering and leaf dropping and inhibit leaf dropping regeneration in a cotton maturation period. In addition, the cyclopropanamide is added into the defoliating agent, so that the use temperature of the defoliating agent can be effectively reduced, and the defoliating agent can still keep good activity and defoliating effect in the environment with the daily average temperature of lower than 20 ℃. The defoliating agent can prolong the functional period and boll development period of cotton leaves and promote the effective development of bolls.
Fomesafen is a herbicide for treating stems and leaves, can prevent and kill annual and perennial broadleaf weeds, and has the action mechanism of destroying the photosynthesis of plants, leading the leaves to yellow and wither rapidly. The drug effect is rapid and the precipitation does not influence the drug effect.
The glyphosine has the function of accelerating the ripening of plants, belongs to a medicament capable of stimulating the plants to generate ethylene, inhibits the growth of the plants by being absorbed by the leaf surfaces of the plants, also inhibits the activity of acid invertase, can delay the growth of the crops, reduces the respiration consumption and increases the sugar accumulation. The compound is used together with fomesafen, and has obvious synergistic effect on defoliation and ripening of cotton.
The leaf blade reduces the respiration, transpiration and photosynthesis of the leaf blade under the saline-alkali stress action of sodium bicarbonate, the growth of the leaf blade is hindered, the leaf blade enters the aging period in advance to be yellow, and the growth of cotton plants is not affected after the sodium bicarbonate is applied.
Preferably, the cotton defoliating agent comprises the following components in parts by weight: 10-25 parts of cyclopropylamide, 35-45 parts of fomesafen, 10-12 parts of glyphosine and 10-12 parts of sodium bicarbonate.
Preferably, the cotton defoliating agent comprises the following components in parts by weight: 25 parts of cyclopropylamide, 38 parts of fomesafen, 12 parts of glyphosine and 10 parts of sodium bicarbonate.
Preferably, one or more of a wetting agent, a dispersing agent and an emulsifying agent is also included.
Preferably, the humectant is glycerin or dimethyl sulfoxide.
The wetting agent is a surfactant, and is composed of hydrophilic group and lipophilic group, when the wetting agent is contacted with solid surface, the lipophilic group is attached to the solid surface, and the hydrophilic group is extended outwards into the liquid, so that the liquid can form continuous phase on the solid surface. When the pesticide is a hydrophobic solid powder, the surface of the pesticide is not easily wetted by water, and is difficult to dissolve in water to sink and agglomerate. If a wetting agent is added, the wetting molecules are directionally arranged on the surface of the solid, so that the surface energy of water is reduced, water can wet the solid, and solid powder is dispersed in the water to form a stable suspension. In addition, if wax is present on the plant leaves, the liquid medicine is not wetted after being sprayed, and becomes spherical and falls off. In order to spread the liquid medicine on the plant leaves to exert its effect sufficiently with good wetting property, a wetting agent is added.
Preferably, the dispersant is sodium dodecyl sulfate.
The action mechanism of the dispersant is as follows: (1) the adsorption on the surface of solid particles reduces the interfacial tension between liquid and liquid or between solid and liquid. The surface of the condensed solid particles is easy to wet; (2) the surface of the solid ion forms a bilayer structure, the polar end of the outer dispersant has stronger affinity with water, the degree of wetting the solid particles by water is increased, and the solid particles are far away from each other due to electrostatic repulsion; (3) the system is uniform, and the suspension performance is improved.
Preferably, the emulsifier is Tween 80 or NP-10.
The emulsifier forms a firm emulsion film to form a stable emulsion by reducing the interfacial free energy, and the droplet particles form a sphere to keep the minimum surface area by reducing the interfacial free energy.
Preferably, the dosage form of the cotton defoliating agent is suspension.
The suspending agent has the advantages of both wettable powder and missible oil, can be wetted by water, has better suspension property after being diluted by water, and can be directly sprayed with liquid.
According to the technical scheme, compared with the prior art, the invention has the following beneficial effects: (1) the composition has a synergistic effect, and the defoliating effect is far better than that of a component used alone; (2) the defoliation of cotton can be promoted, the boll opening of cotton can be accelerated, the yield of cotton can be improved, and the quality of cotton is not influenced; (3) the good activity and defoliation effect can be still kept in the environment of lower than 20 ℃; (4) the dosage is less, and the environment is not polluted.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The required medicament is a conventional experimental medicament purchased from a market channel; the unrecited experimental method is a conventional experimental method, and is not described in detail herein.
Example 1
The defoliating agent formula (in parts by mass) comprises:
20 parts of cyclopropylamide, 30 parts of fomesafen, 10 parts of glyphosine and 10 parts of sodium bicarbonate.
Example 2
The defoliating agent formula (in parts by mass) comprises:
30 parts of cyclopropylamide, 50 parts of fomesafen, 15 parts of glyphosine and 15 parts of sodium bicarbonate.
Example 3
The defoliating agent formula (in parts by mass) comprises:
10 parts of cyclopropylamide, 35 parts of fomesafen, 10 parts of glyphosine and 10 parts of sodium bicarbonate.
Example 4
The defoliating agent formula (in parts by mass) comprises:
25 parts of cyclopropylamide, 45 parts of fomesafen, 12 parts of glyphosine and 12 parts of sodium bicarbonate.
Example 5
The defoliating agent formula (in parts by mass) comprises:
25 parts of cyclopropylamide, 38 parts of fomesafen, 12 parts of glyphosine and 10 parts of sodium bicarbonate.
Example 6
The formula of the defoliating agent comprises:
fomesafen.
Example 7
The formula of the defoliating agent comprises:
and (3) glyphosine.
Example 8
The formula of the defoliating agent comprises:
sodium bicarbonate.
Example 9
The defoliating agent formula (in parts by mass) comprises:
25 parts of cyclopropylamide, 38 parts of fomesafen, 12 parts of ethephon and 10 parts of sodium bicarbonate.
Example 10
The defoliating agent formula (in parts by mass) comprises:
38 parts of fomesafen, 12 parts of glyphosine and 10 parts of sodium bicarbonate.
Example 11
The defoliating agent formula (in parts by mass) comprises:
38 parts of fomesafen and 12 parts of glyphosine.
Example 12
The defoliating agent formula (in parts by mass) comprises:
38 parts of fomesafen and 10 parts of sodium bicarbonate.
Example 13
The defoliating agent formula (in parts by mass) comprises:
20 parts of cyclopropylamide, 30 parts of fomesafen, 10 parts of glyphosine, 10 parts of sodium bicarbonate, 3 parts of glycerol and 2 parts of sodium dodecyl sulfate.
Example 14
The defoliating agent formula (in parts by mass) comprises:
20 parts of cyclopropylamide, 30 parts of fomesafen, 10 parts of glyphosine, 10 parts of sodium bicarbonate, 5 parts of dimethyl sulfoxide and 803 parts of tween.
Example 15
The defoliating agent formula (in parts by mass) comprises:
20 parts of cyclopropylamide, 30 parts of fomesafen, 10 parts of glyphosine, 10 parts of sodium bicarbonate and NP-101.
Experiment 1
(1) Test subjects: the cotton defoliants of examples 1-12 were tested.
(2) Measurement indexes are as follows: defoliation rate, boll opening rate and fiber length.
(3) Cotton variety: middle cotton plant 50.
(4) The process is as follows:
the planting density is 8 ten thousand plants per hectare, and the growth vigor of the cotton during the test period is the same as that of field management. The defoliating agent is applied in the cotton boll opening period, and the application amount is 450 kg/hectare.
After the application of the pesticide, the temperature is recorded, the total number of leaves and bolls of the cotton are investigated 14 days after the application of the pesticide, the defoliation rate and the boll opening rate are calculated, and the cotton is harvested 30 days after the application of the pesticide, and the length of cotton fibers is measured.
The defoliation rate is (total number of leaves of the plant before application-number of leaves remained in the plant during investigation)/total number of leaves of the plant before application multiplied by 100%
The boll opening rate is equal to the number of bolls opening/total bolls multiplied by 100 percent
(5) As a result:
the change in air temperature after application is shown in Table 1.
TABLE 1 air temperature Change after application of the drug
| 1d | 2d | 3d | 4d | 5d | 6d | 7d | |
| Maximum air temperature (. degree. C.) | 22 | 23 | 21 | 20 | 19 | 24 | 25 |
| Minimum air temperature (. degree. C.) | 10 | 9 | 11 | 8 | 5 | 13 | 12 |
| Average air temperature (. degree. C.) | 16 | 16 | 14 | 12 | 10 | 17 | 17 |
TABLE 1 continuation of the table
The results of the measurements of the defoliation rate, the opening rate and the fiber length are shown in Table 2.
TABLE 2 defoliation, boll opening, fiber length results
| Defoliation Rate (%) | Boll opening ratio (%) | Fiber length (mm) | |
| Example 1 | 95.8 | 79.4 | 28.1 |
| Example 2 | 94.6 | 81.3 | 29.4 |
| Example 3 | 95.0 | 78.6 | 28.5 |
| Example 4 | 93.1 | 77.4 | 27.9 |
| Example 5 | 96.4 | 80.7 | 30.1 |
| Example 6 | 31.2 | 54.3 | 24.2 |
| Example 7 | 22.8 | 46.7 | 25.3 |
| Example 8 | 17.6 | 48.2 | 25.7 |
| Example 9 | 79.4 | 70.4 | 27.3 |
| Example 10 | 68.7 | 75.3 | 27.1 |
| Example 11 | 50.4 | 68.3 | 26.7 |
| Example 12 | 42.9 | 64.1 | 24.3 |
As can be seen from the results in Table 2, (1) the defoliating effect of the compounded defoliant of the invention is far better than that of the defoliant using a single component; (2) in the application process, the average temperature is below 20 ℃, so that the effect of the defoliant can be influenced without applying cyclopropylamide.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The cotton defoliant is characterized by comprising the following components in parts by mass: 20-30 parts of cyclopropylamide, 30-50 parts of fomesafen, 10-15 parts of glyphosine and 10-15 parts of sodium bicarbonate.
2. The cotton defoliant according to claim 1, comprising the following components in parts by mass: 10-25 parts of cyclopropylamide, 35-45 parts of fomesafen, 10-12 parts of glyphosine and 10-12 parts of sodium bicarbonate.
3. The cotton defoliant according to claim 1, comprising the following components in parts by mass: 25 parts of cyclopropylamide, 38 parts of fomesafen, 12 parts of glyphosine and 10 parts of sodium bicarbonate.
4. The cotton defoliating agent of claim 1, further comprising one or more of a wetting agent, a dispersing agent, and an emulsifying agent.
5. The cotton defoliating agent of claim 4, wherein said humectant is glycerin or dimethyl sulfoxide.
6. The cotton defoliant according to claim 4, wherein said dispersing agent is sodium dodecyl sulfate.
7. The cotton defoliating agent according to claim 4, wherein said emulsifier is Tween 80 or NP-10.
8. The cotton defoliant according to any one of claims 1 to 7, wherein the formulation of said cotton defoliant is a suspension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010827711.1A CN111937880B (en) | 2020-08-17 | 2020-08-17 | Cotton defoliating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010827711.1A CN111937880B (en) | 2020-08-17 | 2020-08-17 | Cotton defoliating agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111937880A true CN111937880A (en) | 2020-11-17 |
| CN111937880B CN111937880B (en) | 2021-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010827711.1A Expired - Fee Related CN111937880B (en) | 2020-08-17 | 2020-08-17 | Cotton defoliating agent |
Country Status (1)
| Country | Link |
|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112450223A (en) * | 2020-11-25 | 2021-03-09 | 中国农业科学院棉花研究所 | Cotton defoliating agent additive and preparation and use methods thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110250195A (en) * | 2019-05-08 | 2019-09-20 | 江苏省农业科学院 | A kind of composition for disleave, cotton defoliant and preparation method thereof |
| CN110463717A (en) * | 2019-09-02 | 2019-11-19 | 中国农业科学院棉花研究所 | Cotton defoliation ripening composition and cotton defoliation ripening agent |
| CN111264550A (en) * | 2020-03-30 | 2020-06-12 | 中国农业科学院棉花研究所 | Cotton defoliating agent composition and application thereof |
| CN111374141A (en) * | 2020-03-30 | 2020-07-07 | 中国农业科学院棉花研究所 | Pesticide composition for defoliation and ripening of cotton and application thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110250195A (en) * | 2019-05-08 | 2019-09-20 | 江苏省农业科学院 | A kind of composition for disleave, cotton defoliant and preparation method thereof |
| CN110463717A (en) * | 2019-09-02 | 2019-11-19 | 中国农业科学院棉花研究所 | Cotton defoliation ripening composition and cotton defoliation ripening agent |
| CN111264550A (en) * | 2020-03-30 | 2020-06-12 | 中国农业科学院棉花研究所 | Cotton defoliating agent composition and application thereof |
| CN111374141A (en) * | 2020-03-30 | 2020-07-07 | 中国农业科学院棉花研究所 | Pesticide composition for defoliation and ripening of cotton and application thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112450223A (en) * | 2020-11-25 | 2021-03-09 | 中国农业科学院棉花研究所 | Cotton defoliating agent additive and preparation and use methods thereof |
| CN112450223B (en) * | 2020-11-25 | 2021-06-29 | 中国农业科学院棉花研究所 | Cotton defoliating agent additive and preparation and use methods thereof |
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