CN111528226A - Cotton defoliation ripener and application thereof - Google Patents
Cotton defoliation ripener and application thereof Download PDFInfo
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- CN111528226A CN111528226A CN202010492024.9A CN202010492024A CN111528226A CN 111528226 A CN111528226 A CN 111528226A CN 202010492024 A CN202010492024 A CN 202010492024A CN 111528226 A CN111528226 A CN 111528226A
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- weight
- cotton
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- thidiazuron
- ethephon
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 56
- 230000035613 defoliation Effects 0.000 title claims abstract description 28
- 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
- 239000005590 Oxyfluorfen Substances 0.000 claims abstract description 32
- OQMBBFQZGJFLBU-UHFFFAOYSA-N Oxyfluorfen Chemical compound C1=C([N+]([O-])=O)C(OCC)=CC(OC=2C(=CC(=CC=2)C(F)(F)F)Cl)=C1 OQMBBFQZGJFLBU-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims description 16
- 239000002837 defoliant Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000004563 wettable powder Substances 0.000 claims description 3
- 239000004480 active ingredient Substances 0.000 claims description 2
- 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 15
- 241000196324 Embryophyta Species 0.000 description 8
- 230000005070 ripening Effects 0.000 description 8
- 239000000575 pesticide Substances 0.000 description 6
- 239000000375 suspending agent Substances 0.000 description 6
- 239000003814 drug Substances 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 compound CN(C)NC(=O)CCC(O)=O NOQGZXFMHARMLW-UHFFFAOYSA-N 0.000 description 4
- 239000005510 Diuron Substances 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
- 238000011835 investigation Methods 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
- 150000001875 compounds Chemical class 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000000857 drug effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000011435 rock 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
- 239000005605 Pyraflufen-ethyl Substances 0.000 description 1
- 241000270295 Serpentes Species 0.000 description 1
- 238000010521 absorption reaction Methods 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
- 239000004495 emulsifiable concentrate Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 235000015097 nutrients Nutrition 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
- 239000002689 soil Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000009333 weeding Methods 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
- 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
-
- 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
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
- A01N33/18—Nitro compounds
- A01N33/20—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group
- A01N33/22—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group having at least one oxygen or sulfur atom and at least one nitro group directly attached to the same aromatic ring system
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a defoliation ripener which comprises 8-10 parts by weight of thidiazuron, 3-15 parts by weight of oxyfluorfen and 24-32 parts by weight of ethephon. The invention also discloses application of the cotton defoliating agent. The defoliation ripener can well promote defoliation of cotton, accelerate boll opening of the cotton and improve the yield of the cotton.
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 defoliating ripener 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.
Oxyfluorfen is absorbed into the body mainly through the coleoptile and mesocotyl of the plant. The oxyfluorfen can be absorbed by each part of the plant, but the difference of the drug effect is very large when the part of the plant is contacted with the drug. When the weed buds contact with the medicament, the damage is the heaviest, the medicament absorbed by the seeds and roots is less, only a trace amount of the medicament is transported upwards through the roots to enter the leaves, and the weeding effect is less. Therefore, oxyfluorfen only exerts significant efficacy when applied to the soil layer above the weed seeds, and is best applied pre-and post-emergence.
In the process of deeply researching the cotton defoliating ripener, the inventor surprisingly discovers that the defoliating effect of cotton can be obviously improved by mixing the thidiazuron, the oxyfluorfen and the ethephon, the dosage of the thidiazuron used alone is reduced, the defoliating effect of the thidiazuron is improved, and the ripener ripening effect of the ethephon is promoted. In addition, the mixing of the thidiazuron, the diethyloxyfluorfen and the ethephon can reduce the application frequency, the defoliation and ripening effect of the cotton can be achieved only 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 agent which can increase the defoliation speed of thidiazuron and the ripening effect of ethephon, reduce the application times, has excellent defoliation effect of cotton, low application cost and does not influence the yield and quality of cotton.
The invention also aims to provide application of the cotton defoliation ripener.
In order to achieve the purpose, the invention provides a defoliating ripener, which is characterized by comprising 8-10 parts by weight of thidiazuron, 3-15 parts by weight of oxyfluorfen and 24-32 parts by weight of ethephon; the auxiliary agent in the defoliation ripener comprises a surfactant and/or a filler; the weight percentage of the active ingredients of the defoliant in the composition is 25-75%.
In an embodiment of the invention, the defoliating ripener may include 8 to 9 parts by weight of thidiazuron, 5 to 15 parts by weight of oxyfluorfen and 28 to 32 parts by weight of ethephon.
In an embodiment of the invention, the defoliating ripener may include 8 to 9 parts by weight of thidiazuron, 10 to 15 parts by weight of oxyfluorfen and 28 to 32 parts by weight of ethephon.
In an embodiment of the present invention, the defoliating ripener may include 8 parts by weight thidiazuron, 15 parts by weight oxyfluorfen and 28 parts by weight ethephon.
In the embodiment of the invention, the application concentration of the thidiazuron in the defoliating ripener can be 120-150 g/ha, the application concentration of the oxyfluorfen can be 75-225 g/ha, the application concentration of the ethephon can be 360-480 g/ha, and the water consumption can be 450-900 l/ha.
In an embodiment of the invention, the defoliating ripener may be in the form of a solution, a wettable powder, a suspension, a dispersible oil suspension or a water dispersible granule.
The use of the composition of the invention as a cotton defoliant, i.e. for defoliating 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 defoliating ripener in 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: the thidiazuron is 80 percent of thidiazuron wettable powder, the ethephon is 40 percent of ethephon water aqua, and the oxyfluorfen is 240g/L of oxyfluorfen emulsifiable concentrate.
Example 1
8 parts by weight of thidiazuron, 5 parts by weight of oxyfluorfen and 28 parts by weight of ethephon are uniformly mixed to prepare a composition suspending agent with the mass fraction of 41% (namely, in the composition suspending agent, the thidiazuron accounts for 8 wt%, the oxyfluorfen accounts for 5 wt%, and the ethephon accounts for 28 wt%).
Example 2
8 parts by weight of thidiazuron, 10 parts by weight of oxyfluorfen and 28 parts by weight of ethephon are uniformly mixed to prepare a composition suspending agent with the mass fraction of 46% (namely, in the composition suspending agent, the thidiazuron accounts for 8 wt%, the oxyfluorfen accounts for 10 wt%, and the ethephon accounts for 28 wt%).
Example 3
8 parts by weight of thidiazuron, 15 parts by weight of oxyfluorfen and 28 parts by weight of ethephon are uniformly mixed to prepare a composition suspending agent with the mass fraction of 51% (namely, in the composition suspending agent, the thidiazuron accounts for 8 wt%, the oxyfluorfen accounts for 15 wt%, and the ethephon accounts for 28 wt%).
Test example
Investigation method, data processing and calculation method involved in the test example:
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 98% and 100% respectively after the application of the Shihezi and Aral in the example 3 20 days, and are higher than the defoliation rates of the single use of the thidiazuron, the combination of the thidiazuron and the ethephon and the combination of the oxyfluorfen and the ethephon. In addition, the defoliation rates of example 1 and example 2 were only 81% and 86% at the highest 20 days after application of the shihezi and alaer, which was lower than the defoliation rate of example 3 for cotton.
TABLE 1 defoliation (%) of examples 1 to 3 on cotton (water consumption for spraying 450L/ha)
The results of examples 1-3 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 Aral can reach 89% and 85%, respectively, which is higher than the cotton yield of the single use of thidiazuron, the combination of thidiazuron and ethephon and the combination of oxyfluorfen and ethephon. Similarly, the boll opening rate of example 1 and example 2 is only 68% and 72% at the highest 20 days after the application of the pebble and Aral, and is lower than that of example 3 for cotton.
TABLE 2 examples 1 to 3 boll opening ratio (%)
The results of the examples 1-3 on the yield increase rate of cotton are shown in Table 3, and the yield increase rate of the cotton after the application of the mixture in the example 3 to the stone river and the Aral is 23% and 22%, respectively, which is higher than the yield increase rate of the cotton with single thidiazuron, the combination of the thidiazuron and ethephon and the combination of the oxyfluorfen and ethephon. Similarly, the cotton yields of examples 1 and 2 were only 17% and 16% maximum after application to the cobra and alura, which is lower than the cotton yield of example 3.
The average temperature when the pesticide is applied in the rock river area is only 15 ℃ and is lower than the average temperature (24 ℃) applied in the Alar area, 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 | 10 | 11 |
| Thidiazuron and ethephon | 8:28 | 120g+420g | 15 | 16 |
| Oxyfluorfen + ethephon | 5:28 | 75g+420g | 6 | 5 |
| Oxyfluorfen + ethephon | 10:28 | 150g+420g | 8 | 6 |
| Oxyfluorfen + ethephon | 15:28 | 225g+420g | 9 | 8 |
| Thidiazuron, oxyfluorfen and ethephon | 8:5:28 (example 1) | 120g+75g+420g | 16 | 14 |
| Thidiazuron, oxyfluorfen and ethephon | 8:10:28 (example 2) | 120g+150g+420g | 17 | 16 |
| Thidiazuron, oxyfluorfen and ethephon | 8:15:28 (example 3) | 120g+225g+420g | 23 | 22 |
| 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 ripener is characterized by comprising 8-10 parts by weight of thidiazuron, 3-15 parts by weight of oxyfluorfen and 24-32 parts by weight of ethephon; the auxiliary agent in the defoliation ripener comprises a surfactant and/or a filler; the weight percentage of the active ingredients of the defoliant in the composition is 25-75%.
2. A defoliating ripener according to claim 1, wherein the defoliating ripener comprises 8 to 9 parts by weight of thidiazuron, 5 to 15 parts by weight of oxyfluorfen and 28 to 32 parts by weight of ethephon.
3. A defoliating ripener according to claim 1, which comprises 8 to 9 parts by weight of thidiazuron, 10 to 15 parts by weight of oxyfluorfen and 28 to 32 parts by weight of ethephon.
4. A defoliating ripener according to claim 1, wherein the defoliating ripener comprises 8 parts by weight thidiazuron, 15 parts by weight oxyfluorfen and 28 parts by weight ethephon.
5. The defoliating ripener of claims 1 to 4, wherein the concentration of thidiazuron applied in the defoliating ripener is 120 to 150 g/ha, the concentration of oxyfluorfen applied is 75 to 225 g/ha, the concentration of ethephon applied is 360 to 480 g/ha, and the amount of water used is 450 to 900 liters/ha.
6. A defoliating ripener according to claim 1, wherein the defoliating ripener is in the form of a solution, a wettable powder, a suspension, a dispersible oil suspension or a water dispersible granule.
7. A defoliating ripener according to claim 1, wherein the defoliating ripener is used as a cotton defoliating agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010492024.9A CN111528226A (en) | 2020-06-03 | 2020-06-03 | Cotton defoliation ripener and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010492024.9A CN111528226A (en) | 2020-06-03 | 2020-06-03 | Cotton defoliation ripener and application thereof |
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| CN111528226A true CN111528226A (en) | 2020-08-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114868756A (en) * | 2022-06-15 | 2022-08-09 | 德州市农业科学研究院 | Mung bean mature period defoliation dehydrating agent composition and application thereof |
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| 马艳;彭军;崔金杰;奚建平;李希风;: "几种脱叶催熟剂在棉花上的应用效果研究", 中国棉花, no. 09, 15 September 2009 (2009-09-15) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114868756A (en) * | 2022-06-15 | 2022-08-09 | 德州市农业科学研究院 | Mung bean mature period defoliation dehydrating agent composition and application thereof |
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