CN113068691B - Synergistic composition containing uniconazole special for axillary bud inhibitor - Google Patents

Synergistic composition containing uniconazole special for axillary bud inhibitor Download PDF

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CN113068691B
CN113068691B CN202110374109.1A CN202110374109A CN113068691B CN 113068691 B CN113068691 B CN 113068691B CN 202110374109 A CN202110374109 A CN 202110374109A CN 113068691 B CN113068691 B CN 113068691B
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uniconazole
axillary bud
synergistic composition
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CN113068691A (en
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许中怀
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Sichuan Pepsi Dongwang Biotechnology Co ltd
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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
    • 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
    • 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
    • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/46—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom rings with more than six members
    • 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
    • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/647—Triazoles; Hydrogenated triazoles
    • A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
    • 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
    • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A01N65/08—Magnoliopsida [dicotyledons]
    • A01N65/20—Fabaceae or Leguminosae [Pea or Legume family], e.g. pea, lentil, soybean, clover, acacia, honey locust, derris or millettia

Abstract

The invention discloses a synergistic composition containing uniconazole special for an axillary bud inhibitor, which comprises active components A and B, wherein the component A is flumetralin and uniconazole, and the component B is azone and a flat-stem astragalus root extract. In the component A, the mass ratio of the flumetralin to the uniconazole is 30: 1-1: 30; in the component B, the mass ratio of the azone to the astragalus platyphylla extract is 15: 1-1: 30; in the special synergistic composition for the axillary bud inhibitor, the mass ratio of the component A to the component B in the special synergistic composition for the axillary bud inhibitor is 30: 1-30: 13. Within a certain proportion range, the special synergistic composition for the axillary bud inhibitor can regulate the growth of tobacco and cotton and inhibit the growth of axillary buds.

Description

Synergistic composition containing uniconazole special for axillary bud inhibitor
Technical Field
The invention belongs to the technical field of agricultural cultivation and planting, and relates to a synergistic composition containing uniconazole special for an axillary bud inhibitor.
Background
In the tobacco cultivation process, a topping and smearing branch is adopted, so that the growth advantage of the top end can be controlled, and the development of root systems is promoted; the tobacco after topping and branch-removing can concentrate nutrient substance to supply leaf for growth, and the yield and quality of tobacco leaf can be synchronously improved. The chemical bud inhibitor is used for inhibiting the growth of the axillary buds, is an important technical measure for improving the yield and the quality of the tobacco, and the use of the bud inhibitor has good and bad effect on the prevention and treatment effect of the growth of the axillary buds, so that the planting efficiency and the yield and the quality of the tobacco are directly influenced.
Flumetralin belongs to dinitroamine compounds and has the characteristics of contact killing and local systemic. The fluvalicarb mainly influences the function of an enzyme system in a plant body, increases the content of chlorophyll and protein, and achieves the purpose of inhibiting the growth of axillary buds by inhibiting the cell division of axillary bud growth points. The flumetralin mainly acts on lateral buds, has no phytotoxicity on fully-extended leaves, and has the characteristics of strong effect and low leaf residue.
Uniconazole belongs to triazole plant growth retardant, is a broad-spectrum and high-efficiency plant growth regulator and can inhibit the synthesis of gibberellin. Uniconazole controls the nutrient absorption of plants, inhibits the biosynthesis of gibberellin, inhibits cell elongation and realizes the growth regulation of the plants. Uniconazole has the advantages of inhibiting top growth, dwarfing plants, promoting root growth, enhancing light and efficiency and inhibiting respiration. Meanwhile, the uniconazole has the functions of protecting cell membranes and organelle membranes and improving the stress resistance of crops.
Azone is a highly effective, nontoxic penetration enhancer and a novel nonionic surfactant. The azone is easy to adsorb, and can obviously reduce surface tension. The azone can rapidly destroy a protective layer formed by a wax layer and a mucilage layer of a worm body or a plant body, promote pesticide to permeate into a pesticide application object to play a drug role, simultaneously reduce the gradient of the solubility of the pesticide on the surface and in the pesticide application object, and greatly reduce the dosage of the pesticide. The azone can improve and prolong the pesticide effect of pesticide, acaricide, bactericide, herbicide, etc., and the reduction effect of the pesticide amount is obvious.
Astragalus platyphylla is a perennial herb of Astragalus of Leguminosae of the family of Astragalus. The dried and mature seeds of the astragalus platyphylla are named as flatstem milkvetch seeds, are traditional Chinese medicines in China, and mainly contain chemical components such as flavonoids, triterpenes, amino acids, trace elements and the like. After the seeds of the astragalus membranaceus with flat stems are harvested, the stems and the roots of the astragalus membranaceus with flat stems are mostly agricultural wastes except a small amount of the astragalus membranaceus with flat stems serving as winter storage feed for livestock.
In the prior art, different pesticides are mixed to prepare a composition, so that the purpose of synergy is achieved. For example, patent CN111034728A discloses a tobacco axillary bud inhibitor and a method for inhibiting tobacco axillary bud, wherein the tobacco axillary bud inhibitor contains fluazinam and prohexadione calcium as active ingredients, the combination of fluazinam and prohexadione calcium exhibits a synergistic effect of inhibiting tobacco axillary bud, inhibits the germination and growth of tobacco axillary bud for a long period of time at a low application dose, and no significant phytotoxicity to tobacco stem and leaf is observed. In addition, patent CN107467018A discloses a tobacco bud-inhibiting compound preparation, which comprises two active components of flumetralin and oxyfluorfen, wherein the weight part ratio of the flumetralin to the oxyfluorfen is 1: 60-60: 1. In addition, patent CN105309428A discloses a pesticide composition for bud inhibition and its application in inhibiting the growth of tobacco axillary buds, wherein the pesticide composition comprises flumetralin and trifluralin; the weight ratio of the flumetralin to the trifluralin is 5: 50-40: 10. The combination of various pesticides is adopted in the patent, and most of the prepared compositions have the characteristics of safety, mildness and high bud inhibition efficiency.
Patent CN106070207A discloses a bud inhibitor composition capable of reducing the pesticide residue of a bud inhibitor in tobacco leaves, which is used as a tobacco bud inhibitor and comprises flumetralin and butralin, wherein the ratio of the effective components of the flumetralin and the butralin is 2.5: 28.8-10: 7. The bud inhibition effect of the composition disclosed in CN106070207A is obviously better than that of each single agent after one week of application, but the duration of the drug effect is short, and the problem of axillary bud regrowth and the like easily occurs after several weeks of application.
The inventor of the present patent application has found through intensive research a synergistic composition for axillary bud inhibitors containing uniconazole, which is used for regulating plant growth, especially for inhibiting tobacco axillary bud growth and cotton tip growth, and which is not disclosed in the known literature, and it is difficult for those skilled in the art to know the beneficial effects of the composition for plant growth regulation.
Disclosure of Invention
The invention aims to provide a synergistic composition containing uniconazole special for an axillary bud inhibitor, which has excellent growth regulating effect on plants, particularly inhibits the growth of tobacco axillary buds and inhibits the top growth of cotton so as to avoid the problems of yield reduction and quality reduction of agricultural products caused by improper growth inhibition of tobacco axillary buds and excessive growth of cotton.
Based on the above purpose, the invention provides a synergistic composition containing uniconazole special for axillary bud inhibitors, which comprises an effective component A and an effective component B, wherein the component A is flumetralin and uniconazole, and the component B is azone and astragalus platyphylla extract.
One of ordinary skill in the art will readily recognize that many combinations or combinations of agents to improve the efficacy of a composition are used, but because the components and the underlying mechanisms are not known, it is difficult to predict whether the inhibitory effects of multiple agents in combination or combination are synergistic. The inventor researches through an intensive test, and according to the evaluation of comprehensive effects shown by a field test, the composition disclosed by the invention shows excellent regulating effect on the growth of plants such as tobacco and cotton, and is superior to the using effect of the combination of flumetralin and uniconazole.
Further, in the synergistic composition containing uniconazole special for the axillary bud inhibitor, the component A is flumetralin and uniconazole, and the mass ratio of the flumetralin to the uniconazole in the component A is 30: 1-1: 30; preferably, the mass ratio is 10: 1-1: 10.
Further, in the synergistic composition containing uniconazole special for the axillary bud inhibitor, the component B is azone and a astragalus platyphylla extract, and the mass ratio of the azone to the astragalus platyphylla extract in the component B is 15: 1-1: 30; preferably, the mass ratio is 7: 1-1: 16.
Further, in the synergistic composition containing uniconazole specially used for the axillary bud inhibitor provided by the invention, the astragalus platyphylla extract is an extract of a whole plant of astragalus platyphylla.
Further, in the special synergistic composition for the axillary bud inhibitor containing uniconazole provided by the invention, the mass ratio of the component A to the component B in the special synergistic composition for the axillary bud inhibitor is 30: 1-30: 13; preferably, the mass ratio is 10: 1-10: 3.
The present invention is not particularly limited with respect to the method for producing the astragalus platyphylla extract. The synergistic composition containing uniconazole special for the axillary bud inhibitor provided by the invention takes a whole plant of astragalus platyphylla as a raw material, and can be obtained by water leaching, organic solvent leaching, supercritical fluid extraction or other conventional modes after being dried and crushed.
Organic solvent extraction can be taken as one of the preferable modes for obtaining the astragalus platyphylla extractive, and the operation process is roughly as follows: taking the whole aired and crushed astragalus platyphylla (including stems, leaves and roots), ultrasonically extracting the obtained crushed material by using an organic solvent, and recovering the organic solvent in the extract liquid to obtain a concentrated solution of the astragalus platyphylla extract, thereby obtaining the astragalus platyphylla extract. The organic solvent is preferably one or a mixture of methanol, ethanol, chloroform, acetone and ethyl acetate, or other organic solvents capable of obtaining the astragalus platyphylla extract.
Supercritical fluid extraction can also be taken as one of the preferable modes for obtaining the astragalus platyphylla extract, and the operation process is roughly as follows: placing the whole aired and crushed astragalus platyphylla in an extraction kettle, selecting carbon dioxide as an extracting agent, extracting at 40-60 ℃ under the pressure of 15-30 MPa for 2-6 hours, and recovering the carbon dioxide under reduced pressure after extraction is finished to obtain the astragalus platyphylla extract.
According to the actual application requirement, the composition can be prepared into one of dosage forms such as an aqueous emulsion, a microemulsion, a suspending agent, wettable powder, water dispersible granules and the like according to a method known by a person skilled in the art. The functional composition also contains an auxiliary agent required by pesticide preparation, and the auxiliary agent can be one or a mixture of more of a solvent, an emulsifier, a wetting agent, a stabilizer, a dispersant, a thickening agent, a pH regulator, an antifoaming agent, an antifreezing agent, a filler and the like. The adjuvants of the present invention may be known substances, such as various adjuvants commonly used in pesticide preparations, and may be varied according to circumstances, and are not particularly limited.
The invention also provides the application of the composition in regulating the growth of plants. As described above, the composition shows excellent axillary bud inhibition effect on tobacco and good capping effect on cotton within a proper dosage ratio range.
Compared with the prior art, the synergistic composition containing the uniconazole special for the axillary bud inhibitor has the beneficial effects or advantages that:
compared with the prior art, the main contribution of the invention is to provide the synergistic composition containing uniconazole special for the axillary bud inhibitor, the composition comprises an effective component A and an effective component B, the component A is flumetralin and uniconazole, and the component B is azone and astragalus platyphylla extract. The inventor of the patent conducts field efficacy test on the composition, and finds that the growth regulating effect of the composition on plants is better than the using effect of the combination of flumetralin and uniconazole in a certain proportion range, and the component B has no regulating effect on the growth of the plants, which shows that the component B has a synergistic effect on the component A. Through further experimental investigation of the inventor, the composition is found to have a remarkable growth regulating effect on plants, particularly tobacco and cotton.
Detailed Description
The following examples are given to illustrate the technical aspects of the present invention, but the present invention is not limited to the following examples.
Example 1
The synergistic composition special for the axillary bud inhibitor provided in this example uses the whole plant of astragalus platyphylla (including stem, leaf and root) as raw material to prepare the astragalus platyphylla extract.
(1) First preparation method of Astragalus platyphylla extract (methanol extract of Astragalus platyphylla)
Weighing 100g of the whole aired and crushed astragalus platysternifolius plant, placing the whole plant in a 5L extraction kettle, adding 2.5kg of methanol, performing reflux extraction for 2-3 hours, and performing reduced pressure concentration to remove the solvent to obtain the astragalus platysternifolius extract.
(2) Radix astragali oblate extract preparation method two (supercritical carbon dioxide extract of radix astragali oblate)
Weighing 100g of air-dried and crushed whole platyhodium astragali, placing the whole platyhodium astragali in an extraction kettle, adjusting the pressure to 15-30 MPa, the temperature to 40-60 ℃, and the time to 2-6 h. And (3) after extraction is finished, recovering carbon dioxide under reduced pressure to obtain the astragalus platyphylla extract.
(3) Preparation method of radix astragali oblate extract (organic extract of radix astragali oblate)
Putting the whole dried and crushed astragalus platyphylla in a stirring container, adding 4-10 times by weight of organic solvent, and stirring and leaching for 2-4 times in a constant-temperature water bath kettle at 40-80 ℃ for 12-36 hours each time; separating and filtering to obtain leaching liquor, evaporating and concentrating the leaching liquor under the vacuum degree of 0.05 Mpa-0.09 Mpa, and recovering the organic solvent in the leaching liquor to obtain the astragalus platyphylla extract.
Example 2
The embodiment provides a field test of the effect of a synergistic composition containing uniconazole special for an axillary bud inhibitor on the inhibition of tobacco axillary buds. The effective components of the composition are flumetralin, uniconazole, azone and astragalus membranaceus supercritical carbon dioxide extract.
The tobacco variety to be tested is 'K326', the test site is in a high-quality tobacco planting base of a county of New county of Yongzhou city, Hunan province, the soil is a yellow mud field, the texture is loose, the fertility is moderate, the terrain is open, and the drainage and irrigation are convenient.
Test set-up test group 1, test group 2, control group 1, control group 2, control group 3, control group 4 and blank control group. Test group 1 a mixed treatment agent was prepared by compounding flumetralin, uniconazole, azone and astragalus membranaceus supercritical carbon dioxide extract according to the proportions described in table 1; in the test group 2, flumetralin and uniconazole are compounded into a mixed treatment medicament according to the proportion shown in the table 1; the control group is single agent of each component, and the blank control group is clear water.
Each treatment was set up with 4 test cells, 30 tobacco plants per test cell. The test time is that the central flower of the tobacco plant 1/2 is opened, the top leaf is cut when the length is more than 20cm, and all axillary buds longer than 2cm are removed. Immediately applying the pesticide by a cup drenching method after topping the tobacco, wherein each group of pesticide is diluted by 200 times during pesticide application, and the pesticide dosage of each plant is 20 ml. The number of viable buds (exceeding 2cm) was investigated 1 time at 2, 4 and 6 weeks after the administration of 3 random samples per cell and 10 plants per cell, and the data recording results are shown in Table 1.
The bud inhibition (%) was calculated as follows:
Figure BDA0003010492710000081
TABLE 1 synergistic effect of a synergistic composition containing uniconazole for axillary bud inhibitor on tobacco axillary bud inhibition
Figure BDA0003010492710000082
Note: the component A is flumetralin (A)1) And uniconazole (A)2) A combination of (A) and (B), component B being azone (B)1) And radix astragali extract (B) obtained by supercritical carbon dioxide extraction2) A combination of (A)1And A2The mass ratio of the component A to the component B is 1:11And B2The mass ratio in component B is 1: 1.
As can be seen from the data in the table 1, the synergistic composition containing the uniconazole special for the axillary bud inhibitor comprises the effective components of flumetralin and uniconazoleThe azone and the astragalus membranaceus supercritical carbon dioxide extract have a good effect of inhibiting tobacco axillary buds within a certain proportion range, the maximum bud inhibition rate of 2 weeks after application reaches 97.93%, the maximum bud inhibition rate of 4 weeks after application reaches 97.34%, the maximum bud inhibition rate of 6 weeks after application reaches 91.25%, the effect is remarkably higher than the effect of combined use of flumetralin and uniconazole, and the effect is superior to the use effect of each single agent. Further analysis of the data in Table 1 shows that the tobacco suckercontaining effect and suckercontaining duration are effectively improved after the component A is added into the component B, and the component B1Single agents and B2The single agent has no effect of inhibiting the bud of the tobacco, namely the addition of the component B realizes the synergistic effect on the component A.
Example 3
This example provides a field test of the effect of a synergistic composition containing uniconazole for axillary bud inhibitors on cotton topping. The effective components of the composition are flumetralin, uniconazole, azone and astragalus membranaceus supercritical carbon dioxide extract.
The cotton variety to be tested is 'Xinluzhong No. 37', the test site is in Nanjiang cotton ball, and the field management is the same as the high-yield management level in the field.
The test set-up test group 1, test group 2 and control group 1, control group 2, control group 3, control group 4 and control group 5. Test group 1 a mixed treatment agent was prepared by compounding flumetralin, uniconazole, azone and astragalus membranaceus supercritical carbon dioxide extract according to the proportions shown in table 2; in the test group 2, flumetralin and uniconazole are compounded into a mixed treatment medicament according to the proportion shown in the table 2; the control group 1 was manually topped; the control groups 2-5 are respectively flumetralin single dose, uniconazole single dose, azone single dose and radix astragali platyphyllae supercritical carbon dioxide extract single dose.
Each group of treatment sets 3 test cells, each test cell having an area of 50m2. The chemical topping application concentration is 0.2g/L, and the application dosage is 2.5kg/hm2. Spraying the cotton tip with a knapsack sprayer, and picking off the tip of the cotton according to the standard of one leaf and one heart. In each group, 10 cotton plants (5 cotton plants in the middle row and 5 cotton plants in the side row) are selected before spraying, and the cotton plant height, leaf age, fruit branch number and bud boll condition are determined at fixed points; each cell in boll opening periodAnd (3) selecting continuous 15 cotton plants to investigate various agronomic characters, wherein the data recording results are shown in a table 2.
TABLE 2 agronomic traits of cotton chemically topped with a synergistic composition specific for axillary bud inhibitor containing uniconazole
Figure BDA0003010492710000101
Note: the component A is flumetralin (A)1) And uniconazole (A)2) A combination of (A) and (B), component B being azone (B)1) And radix astragali extract (B) obtained by supercritical carbon dioxide extraction2) A combination of (A)1And A2The mass ratio of the component A to the component B is 1:11And B2The mass ratio in component B is 1: 1.
As can be seen from the data in the table 2, when the synergistic composition containing the uniconazole special for the axillary bud inhibitor is sprayed, the effective components of the flumetralin, the uniconazole, the azone and the astragalus membranaceus supercritical carbon dioxide extract can effectively delay and inhibit the top growth of cotton within a certain proportion range, and the capping effect is achieved. The effect of spraying the synergistic composition containing the uniconazole special for the axillary bud inhibitor is obviously higher than the effect of using the flumetralin and the uniconazole in a combined way by the number of single plants, namely the synergistic effect of the component A is realized by adding the component B. It is worth noting that the number of fruit branches of the synergistic composition containing the uniconazole special for the axillary bud inhibitor is less than that of the fruit branches of manual topping, and the difference between the number of single-plant fruiting branches and the number of manual topping is not great, which indicates that the empty fruit branches at the top are new fruit branches within the duration of chemical topping effect, do not affect the fruiting performance and are not the main reason for affecting the yield.
As described above, the present invention can be preferably implemented, and the above-mentioned embodiments only describe the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various changes and modifications of the technical solution of the present invention made by those skilled in the art without departing from the design spirit of the present invention shall fall within the protection scope defined by the present invention.

Claims (6)

1. The synergistic composition special for the axillary bud inhibitor containing uniconazole is characterized in that the effective components comprise a component A and a component B, wherein the component A is flumetralin and uniconazole, and the component B is azone and a flat-stem astragalus root extract; in the component A, the mass ratio of the flumetralin to the uniconazole is 30: 1-1: 30; in the component B, the mass ratio of the azone to the astragalus platyphylla extract is 15: 1-1: 30; the mass ratio of the component A to the component B in the synergistic composition containing the uniconazole special for the axillary bud inhibitor is 30: 1-30: 13.
2. The synergistic composition containing uniconazole special for the axillary bud inhibitor according to claim 1, wherein in the component A, the mass ratio of the flumetralin to the uniconazole is 10: 1-1: 10.
3. The synergistic composition containing uniconazole of claim 1, wherein in the component B, the mass ratio of azone to astragalus platyphylla extract is 7: 1-1: 16.
4. The synergistic composition containing uniconazole special for the axillary bud inhibitor according to claim 1, wherein the mass ratio of the component A to the component B in the synergistic composition containing uniconazole special for the axillary bud inhibitor is 10: 1-10: 3.
5. Use of the synergistic composition for an axillary bud inhibitor comprising uniconazole according to any one of claims 1 to 4 for plant growth regulation.
6. The use of claim 5, wherein the plant comprises tobacco and cotton.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106614617A (en) * 2016-10-10 2017-05-10 四川省兰月科技有限公司 Water dispersion granule containing flumetralin and uniconazole
CN108041083A (en) * 2017-12-29 2018-05-18 西北农林科技大学 A kind of plant source pesticide synergist and its application

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106614617A (en) * 2016-10-10 2017-05-10 四川省兰月科技有限公司 Water dispersion granule containing flumetralin and uniconazole
CN108041083A (en) * 2017-12-29 2018-05-18 西北农林科技大学 A kind of plant source pesticide synergist and its application

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