CN111642516A - Cotton defoliation ripening composition and application thereof - Google Patents
Cotton defoliation ripening composition and application thereof Download PDFInfo
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- CN111642516A CN111642516A CN202010492025.3A CN202010492025A CN111642516A CN 111642516 A CN111642516 A CN 111642516A CN 202010492025 A CN202010492025 A CN 202010492025A CN 111642516 A CN111642516 A CN 111642516A
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- thidiazuron
- ethephon
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 56
- 239000000203 mixture Substances 0.000 title claims abstract description 47
- 230000005070 ripening Effects 0.000 title claims abstract description 42
- 230000035613 defoliation Effects 0.000 title claims abstract description 38
- HFCYZXMHUIHAQI-UHFFFAOYSA-N Thidiazuron Chemical compound C=1C=CC=CC=1NC(=O)NC1=CN=NS1 HFCYZXMHUIHAQI-UHFFFAOYSA-N 0.000 claims abstract description 49
- UDPGUMQDCGORJQ-UHFFFAOYSA-N (2-chloroethyl)phosphonic acid Chemical compound OP(O)(=O)CCCl UDPGUMQDCGORJQ-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000005976 Ethephon Substances 0.000 claims abstract description 44
- CONWAEURSVPLRM-UHFFFAOYSA-N lactofen Chemical compound C1=C([N+]([O-])=O)C(C(=O)OC(C)C(=O)OCC)=CC(OC=2C(=CC(=CC=2)C(F)(F)F)Cl)=C1 CONWAEURSVPLRM-UHFFFAOYSA-N 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000004480 active ingredient Substances 0.000 claims description 3
- 239000004563 wettable powder Substances 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- 239000012053 oil suspension Substances 0.000 claims description 2
- 239000004094 surface-active agent Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 239000004562 water dispersible granule Substances 0.000 claims description 2
- 241000219146 Gossypium Species 0.000 description 48
- 230000000694 effects Effects 0.000 description 14
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000000575 pesticide Substances 0.000 description 6
- 229950003776 protoporphyrin Drugs 0.000 description 6
- 239000000375 suspending agent Substances 0.000 description 6
- KSFOVUSSGSKXFI-GAQDCDSVSA-N CC1=C/2NC(\C=C3/N=C(/C=C4\N\C(=C/C5=N/C(=C\2)/C(C=C)=C5C)C(C=C)=C4C)C(C)=C3CCC(O)=O)=C1CCC(O)=O Chemical compound CC1=C/2NC(\C=C3/N=C(/C=C4\N\C(=C/C5=N/C(=C\2)/C(C=C)=C5C)C(C=C)=C4C)C(C)=C3CCC(O)=O)=C1CCC(O)=O KSFOVUSSGSKXFI-GAQDCDSVSA-N 0.000 description 5
- XMTQQYYKAHVGBJ-UHFFFAOYSA-N 3-(3,4-DICHLOROPHENYL)-1,1-DIMETHYLUREA Chemical compound CN(C)C(=O)NC1=CC=C(Cl)C(Cl)=C1 XMTQQYYKAHVGBJ-UHFFFAOYSA-N 0.000 description 4
- NOQGZXFMHARMLW-UHFFFAOYSA-N Daminozide Chemical group CN(C)NC(=O)CCC(O)=O NOQGZXFMHARMLW-UHFFFAOYSA-N 0.000 description 4
- 239000005510 Diuron Substances 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 4
- 240000002024 Gossypium herbaceum Species 0.000 description 4
- 235000004341 Gossypium herbaceum Nutrition 0.000 description 4
- 238000003306 harvesting Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002837 defoliant Substances 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000004575 stone Substances 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
- 230000001133 acceleration Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 229930002875 chlorophyll Natural products 0.000 description 2
- 235000019804 chlorophyll Nutrition 0.000 description 2
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000002363 herbicidal effect Effects 0.000 description 2
- 239000004009 herbicide Substances 0.000 description 2
- 230000003859 lipid peroxidation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 240000001140 Mimosa pudica Species 0.000 description 1
- 235000016462 Mimosa pudica Nutrition 0.000 description 1
- 102000004316 Oxidoreductases Human genes 0.000 description 1
- 108090000854 Oxidoreductases Proteins 0.000 description 1
- 239000005605 Pyraflufen-ethyl Substances 0.000 description 1
- 241000270295 Serpentes Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006696 biosynthetic metabolic pathway Effects 0.000 description 1
- ANWUQYTXRXCEMZ-NYABAGMLSA-L chlorophyllide a Chemical compound C1([C@H](C2=O)C(=O)OC)=C(N3[Mg]N45)C2=C(C)\C3=C\C(=N2)C(CC)=C(C)\C2=C\C4=C(C=C)C(C)=C5\C=C/2[C@@H](C)[C@H](CCC(O)=O)C1=N\2 ANWUQYTXRXCEMZ-NYABAGMLSA-L 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 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
- 230000000857 drug effect Effects 0.000 description 1
- 239000004495 emulsifiable concentrate Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000003278 haem Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003504 photosensitizing agent Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical group C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001052 transient effect Effects 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
- 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
- A01N27/00—Biocides, pest repellants or attractants, or plant growth regulators containing hydrocarbons
-
- 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
- A01N37/48—Nitro-carboxylic acids; 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
- 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
Abstract
The invention discloses a defoliation ripening composition which comprises 8-10 parts by weight of thidiazuron, 2-10 parts by weight of lactofen and 24-32 parts by weight of ethephon. The invention also discloses application of the cotton defoliation ripening composition. The defoliation ripening composition can well promote defoliation of cotton, accelerate boll opening of the cotton and improve cotton yield.
Description
Technical Field
The invention belongs to the technical field of pesticides, relates to a pesticide composition and an application field thereof, and particularly relates to a defoliation ripening composition and an application thereof.
Background
The defoliating agent is sprayed before cotton harvesting, so that the shedding and concentrated boll opening of cotton leaves can be promoted, the impurity content of cotton is reduced, and the mechanical cotton harvesting efficiency is improved. At present, 87 cotton defoliating agent products which are approved to be registered and are in the period of validity in China are obtained, wherein 45 single agents are used, and 42 mixed agents are used. The single dose is mainly thidiazuron, and 43 doses are available; the other 2 are pyraflufen-ethyl. The mixture mainly comprises 40 thidiazuron and diuron, and the other 2 thidiazuron and ethephon are thidiazuron and ethephon respectively. Therefore, the effective components of cotton defoliant products in China are single, and new defoliant products are urgently needed to be applied to production. In the production process of cotton, cotton farmers generally use defoliating mixed agents diuron, thidiazuron and ethephon.
After the thidiazuron is absorbed by the plant, abscisic acid and ethylene can be generated by the cotton plant, so that a separation layer is formed between a leaf stalk and the cotton plant, and cotton leaves fall off automatically. The thidiazuron can also promote the nutrient components of the leaves to be transferred to young and tender cotton bolls on the upper parts of the plants, and the cotton plants cannot die, so that the multiple effects of ripening acceleration, defoliation, yield increase and quality increase are integrated. The thidiazuron can make the cotton early mature, the boll opening is relatively advanced and concentrated, the proportion of cotton before frost is increased, and the mechanical and manual harvesting is facilitated. The ethephon has good ripening acceleration effect, and can rapidly crack the cotton bolls and dry the leaves after dehydration when being used on cotton. However, the thidiazuron and diuron have higher cost, the thidiazuron has lower defoliation speed and poorer low-temperature resistance, the ethephon has good ripening effect, but the defoliation effect is poor, thereby influencing the influence of mechanical harvesting on the quality of cotton. Therefore, in the process of developing a new cotton defoliant, the dosage of thidiazuron and diuron should be reduced, and the ethephon incorporation ratio and application times should be strictly controlled.
Lactofen is a selective post-emergence herbicide, is a serious inhibitor of sensitive plant protoporphyrin oxidase, catalyzes the oxidation of protoporphyrin to protoporphyrin IX in a chlorophyll biosynthesis pathway, and is a transient metabolite, a photosensitizer which obviously causes lipid peroxidation in tissues, does not accumulate in plant tissues and is an intermediate product of a heme precursor substance and a chlorophyll early precursor substance. Under the action of herbicide, protoporphyrin IX is accumulated, the accumulated amount of protoporphyrin IX is obviously and positively correlated with the toxicity level, and the increase of protoporphyrin causes the decrease of chlorophyllide, finally causes lipid peroxidation, causes membrane damage and causes cell leakage.
In the process of deeply researching the cotton defoliation ripening composition, the inventor surprisingly discovers that the defoliation effect of cotton can be obviously improved by mixing the thidiazuron, the lactofen-diclofop-methyl and the ethephon, the dosage of the thidiazuron used alone is reduced, the defoliation effect of the thidiazuron is improved, and the ripening effect of the ethephon is promoted. In addition, the mixing of thidiazuron, lactofen and ethephon can reduce the application times, the defoliation and ripening effect of cotton can be achieved by applying the pesticide once, and the yield and the quality of the cotton cannot be influenced. Thus, the present invention has been completed through further studies.
According to the data search made by the inventor, no patent and other published data conflicting with the present invention are found.
Disclosure of Invention
In order to overcome the defects of slow defoliation speed of thidiazuron and poor ripening effect of ethephon in the background art, the invention aims to provide the cotton defoliation ripening composition which can increase the defoliation speed of thidiazuron and the ripening effect of ethephon, reduce the application times, has excellent defoliation effect of cotton, is low in medication cost and does not influence the yield and quality of cotton.
The invention also aims to provide application of the cotton defoliation ripening composition.
In order to achieve the purpose, the invention provides a defoliation ripening composition which is characterized by comprising 8-10 parts by weight of thidiazuron, 2-10 parts by weight of lactofen and 24-32 parts by weight of ethephon; the auxiliary agent in the defoliation ripening composition comprises a surfactant and/or a filler; the weight percentage of the defoliating ripening active ingredients in the composition is 25-75%.
In an embodiment of the present invention, the defoliating ripening composition may include 8 to 9 parts by weight of thidiazuron, 3 to 9 parts by weight of lactofen, and 28 to 30 parts by weight of ethephon.
In an embodiment of the present invention, the defoliating ripening composition may include 8 to 9 parts by weight of thidiazuron, 6 to 9 parts by weight of lactofen, and 28 to 30 parts by weight of ethephon.
In an embodiment of the present invention, the defoliating ripening composition may comprise 8 parts by weight thidiazuron, 9 parts by weight lactofen and 28 parts by weight ethephon.
In the embodiment of the invention, the concentration of thidiazuron applied in the defoliation ripening composition can be 120-150 g/ha, the concentration of lactofen applied can be 45-144 g/ha, the concentration of ethephon applied can be 360-480 g/ha, and the water consumption can be 450-900 l/ha, based on the amount of the active ingredients.
In an embodiment of the invention, the defoliating ripening composition may be in the form of a solution, a wettable powder, a suspension, a dispersible oil suspension or water dispersible granules.
The composition of the invention is used for defoliating and ripening cotton, namely for detaching plant leaves.
The compositions of the present invention exhibit a synergistic effect, the activity of which is more pronounced than the expected sum of the activities using the individual compounds, and the individual activities of the individual compounds.
The composition of the invention can promote defoliation of cotton, accelerate boll opening of cotton, improve cotton yield and does not affect cotton quality.
The composition of the invention promotes the absorption of the defoliation ripening composition in a low-temperature environment, and has remarkable promoting effect on defoliation and boll opening of cotton.
The composition has the advantages of small dosage, reduced application frequency and reduced environmental hazard.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to specific embodiments below.
The agents used in the following examples: thidiazuron is 80% thidiazuron wettable powder, ethephon is 40% ethephon water aqua, and lactofen is 240g/L lactofen emulsifiable concentrate.
Example 1
8 parts by weight of thidiazuron, 3 parts by weight of lactofen and 28 parts by weight of ethephon are uniformly mixed to prepare the composition suspending agent with the mass fraction of 39% (namely, in the composition suspending agent, the thidiazuron accounts for 8 wt%, the lactofen accounts for 3 wt%, and the ethephon accounts for 28 wt%).
Example 2
8 parts by weight of thidiazuron, 6 parts by weight of lactofen and 28 parts by weight of ethephon are uniformly mixed to prepare a composition suspending agent with the mass fraction of 42% (namely, in the composition suspending agent, the thidiazuron accounts for 8 wt%, the lactofen accounts for 6 wt%, and the ethephon accounts for 28 wt%).
Example 3
8 parts by weight of thidiazuron, 9 parts by weight of lactofen and 28 parts by weight of ethephon are uniformly mixed to prepare a composition suspending agent with the mass fraction of 45% (namely, in the composition suspending agent, the thidiazuron accounts for 8 wt%, the lactofen accounts for 9 wt%, and the ethephon accounts for 28 wt%).
Test example
The investigation method, the data processing and calculation method related to the test example are as follows:
the investigation method comprises the following steps: before the application, 20 cotton plant fixing hanging tags are randomly selected in the middle row of each cell, and the total number of leaves of cotton at each point of each cell is investigated on the day of application. The number of the residual leaves of each point of the plant-fixed cotton is respectively investigated 10 days and 20 days after the pesticide application, the defoliation rate of each investigation is respectively calculated, the boll opening rate of the cotton 20 days after the pesticide application is calculated, and the yield is measured during the boll opening period of the cotton.
The drug effect calculation method comprises the following steps:
the results show that the defoliation rates of the cotton in the examples 1-3 are 96% and 100% respectively after the application of the stone river and the Aral in the example 3 20 days, and are higher than the defoliation rates of the single use of the thidiazuron, the mixed use of the thidiazuron and the ethephon and the mixed use of the lactofen and the ethephon. In addition, the defoliation rates of examples 1 and 2 were only 84% and 86% at the highest 20 days after application of the shihe and alaer, which was lower than that of example 3 for cotton.
TABLE 1 examples 1 to 3% defoliation rate (%) of cotton (water consumption for spraying 450L/ha)
The results of examples 1 to 3 on the cotton yield are shown in table 2, and it can be seen from the results that the cotton yield of example 3 20 days after the application of the stone river and the alaer can reach 84% and 89%, respectively, which are higher than the cotton yield of the single use of thidiazuron, the mixed use of thidiazuron and ethephon and the mixed use of lactofen and ethephon. Similarly, the boll opening rate of example 1 and example 2 20 days after the application of the pebble and alura is only 71% and 75% at the highest, which is lower than that of example 3 for cotton.
TABLE 2 examples 1 to 3 boll opening ratio (%)
The results of the examples 1 to 3 on the yield increase of cotton are shown in Table 3, and the yield increase of cotton after the application of the mixture to the river and the Aral in the example 3 is respectively 20% and 21%, which is higher than the yield increase of cotton with single thidiazuron, the combination of the thidiazuron and ethephon and the combination of lactofen and ethephon. Similarly, the cotton yields of examples 1 and 2 were only 15% and 16% at the highest after application to the cobra and alura, which is lower than the cotton yield of example 3.
The average temperature of the pesticide applied in the rock river region is only 15 ℃ and is lower than the average temperature (24 ℃) applied in the Alar region, but the defoliation rate, the boll opening rate and the yield increasing rate of cotton in the rock river and the Alar in the examples 1-3 are not greatly different, so the temperature does not influence defoliation, boll opening and yield of the examples. However, when thidiazuron is used alone or when thidiazuron and ethephon are mixed, the defoliation rate, boll opening and yield of cotton in the rocky river region are slightly lower than those in the Alar region due to the influence of temperature.
TABLE 3 yield increase (%) of examples 1 to 3 to cotton
| Drug treatment | Mass ratio of | Hectare dosage (based on effective components) | Stone river | Alar |
| Thidiazuron | —— | 120g | 9 | 10 |
| Thidiazuron and ethephon | 8:28 | 120g+420g | 13 | 15 |
| Lactofen and ethephon | 3:28 | 45g+420g | 0 | 0 |
| Lactofen and ethephon | 6:28 | 90g+420g | 1 | 0 |
| Lactofen and ethephon | 9:28 | 135g+420g | 2 | 2 |
| Thidiazuron, lactofen and ethephon | 8:3:28 (example 1) | 120g+45g+420g | 14 | 14 |
| Thidiazuron, lactofen and ethephon | 8:6:28 (example 2) | 120g+90g+420g | 15 | 16 |
| Thidiazuron, lactofen and ethephon | 8:9:28 (example 3) | 120g+135g+420g | 20 | 21 |
| Clear water control | —— | 0 | 0 | 0 |
Those of ordinary skill in the art will understand that: the invention is not to be considered as limited to the specific embodiments thereof, but is to be understood as being modified in all respects, all changes and equivalents that come within the spirit and scope of the invention.
Claims (7)
1. The defoliation ripening composition is characterized by comprising 8-10 parts by weight of thidiazuron, 2-10 parts by weight of lactofen and 24-32 parts by weight of ethephon; the auxiliary agent in the defoliation ripening composition comprises a surfactant and/or a filler; the weight percentage of the defoliation ripening active ingredients in the composition is 25-75%.
2. The defoliating and ripening composition of claim 1, wherein the defoliating and ripening composition comprises 8 to 9 parts by weight thidiazuron, 3 to 9 parts by weight lactofen and 28 to 30 parts by weight ethephon.
3. The defoliating and ripening composition of claim 1, wherein the defoliating and ripening composition comprises 8 to 9 parts by weight thidiazuron, 6 to 9 parts by weight lactofen and 28 to 30 parts by weight ethephon.
4. A defoliating and ripening composition according to claim 1, wherein said defoliating and ripening composition comprises 8 parts by weight thidiazuron, 9 parts by weight lactofen and 28 parts by weight ethephon.
5. The defoliation and ripening composition according to claim 1, wherein the concentration of thidiazuron applied in the defoliation and ripening composition is 120-150 g/ha, the concentration of lactofen applied is 45-144 g/ha, the concentration of ethephon applied is 360-480 g/ha, and the amount of water used is 450-900 l/ha.
6. A defoliating and ripening composition according to claim 1, wherein said defoliating and ripening composition is in the form of a solution, a wettable powder, a suspension, a dispersible oil suspension or water dispersible granules.
7. The defoliating and ripening composition of claim 1, wherein said defoliating and ripening composition is used for defoliating and ripening cotton.
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| CN202010492025.3A CN111642516A (en) | 2020-06-03 | 2020-06-03 | Cotton defoliation ripening composition and application thereof |
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| CN202010492025.3A CN111642516A (en) | 2020-06-03 | 2020-06-03 | Cotton defoliation ripening composition and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| US20090247404A1 (en) * | 2006-02-02 | 2009-10-01 | Bone James R | Method for improving harvestability of crops |
| CN101971862A (en) * | 2010-09-02 | 2011-02-16 | 袁永贵 | High-efficiency defoliating and ripening agent used before picking cotton |
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