CN114391546A - Plant growth regulator applied to paris polyphylla and using method thereof - Google Patents
Plant growth regulator applied to paris polyphylla and using method thereof Download PDFInfo
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- CN114391546A CN114391546A CN202210040151.4A CN202210040151A CN114391546A CN 114391546 A CN114391546 A CN 114391546A CN 202210040151 A CN202210040151 A CN 202210040151A CN 114391546 A CN114391546 A CN 114391546A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—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
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/25—Root crops, e.g. potatoes, yams, beet or wasabi
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
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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
- 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
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/36—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 singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
- A01N37/38—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 singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system
- A01N37/40—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 singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system having at least one carboxylic group or a thio analogue, or a derivative thereof, and one oxygen or sulfur atom attached to the same aromatic ring system
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/22—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom rings with more than six members
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
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Abstract
The invention relates to a Chinese medicinal material planting technology and a disease control technology, belongs to the field of Chinese medicinal materials and plant protection, and particularly discloses a plant growth regulator applied to paris polyphylla and a using method thereof, wherein the plant growth regulator comprises the following steps: (1) during the planting period of the paris polyphylla, spraying 2-3 times of paclobutrazol solution to stems and leaves after seedlings are completely grown in each year; (2) during the period of planting the paris polyphylla, before rainy seasons come every year, a mixed solution of brassinolide and salicylic acid is sprayed to stem leaves for 3-4 times.
Description
Technical Field
The invention relates to a Chinese medicinal material planting technology and a disease control technology, belongs to the field of Chinese medicinal materials and plant protection, and particularly relates to a plant growth regulator applied to paris polyphylla and a using method thereof.
Background
Paris polyphylla (Paris polyphylla smithvar. yunnanensis (Franch.) Hand), also called typhonium giganteum, Paris polyphylla rhizoma alismatis and the like, is a perennial herb plant of Paris polyphylla of liliaceae, is a variety of Paris polyphylla (p. polyphylla), is mainly distributed in most areas of Yunnan and adjacent Sichuan and Guizhou areas, is also distributed in Fujian, Guangxi, Hunan, Hubei and the like, and is grown under the forest, bush and grass slope with the altitude of 1400 + 3600 m.
Yunnan manyleaf paris rhizome is recorded as a brand of Yunnan 'Shida Yunyuan medicine' by Yunnan province in 2020, is used as a medicine by roots and stems, is one of original plants of the Yunnan manyleaf paris rhizome recorded by Chinese pharmacopoeia of people's republic of China, is a common Chinese herbal medicine for each minority nationality and folk in Yunnan province, and is a main raw material of the brand Chinese medicines of' Yunnan Baiyao ', antiviral granules' and the like. The price of Yunnan manyleaf Paris rhizome has risen year by year since the 21 st century, from the first 20 yuan/kg to the highest 1300 yuan/kg, and in recent years, although there is a certain fall back, the price is still high. Due to the stimulation of market price, wild resources are excavated to be endangered, artificial planting is promoted, and the planting area of the paris polyphylla exceeds 15 ten thousand mu only in various places in Yunnan province at present. In the paris polyphylla planting process, paris polyphylla has various diseases, mainly white mold, brown spot, root rot, anthracnose, stem rot, leaf spot, gray mold, bacterial soft rot and the like, can reduce yield seriously after occurrence, even has no grain harvest, and the paris polyphylla disease control technology mainly adopts medicament control to inhibit or kill pathogenic bacteria, but because of long-term use of sterilization and bacteriostasis pesticides, each pathogenic bacteria generates stronger drug resistance and drug resistance, and meanwhile, the excessive use of agriculture causes a new problem of paris polyphylla planting industry, namely overproof pesticide residue, and seriously restricts the development of paris polyphylla planting industry.
Paclobutrazol belongs to a plant growth retardant in five plant growth regulators, is a common plant growth regulator in plant tissue culture, has the functions of dwarfing plants, thickening stems and branches and delaying flowering phase, also has the functions of promoting rooting, promoting flower formation and fruit setting, increasing chlorophyll content of leaves, changing leaf structures and the like on partial plants, is widely applied to traditional Chinese medicinal materials at present, and mainly has the functions of increasing yield and improving quality. Brassinolide is a sixth plant growth regulator, is firstly found in rape pollen in 1970 and is firstly separated in 1979, has physiological functions of regulating the growth of plant roots, the elongation of stems, the extension of leaves, the development of vascular systems, the growth of pollen tubes and the like, and is mainly applied to crops at present to promote production and increase income. Salicylic acid also belongs to the sixth plant growth regulator, participates in regulating the growth and development of plants and various stress responses, and is an important plant growth regulator for plant defense responses, especially systemic acquired resistance. Three plant growth regulators are mainly applied to grain crops, fruits, vegetables and the like in agriculture at present, besides paclobutrazol, brassinolide and salicylic acid are applied to traditional Chinese medicinal materials less, and related reports are hardly seen.
Aiming at the defects of the existing disease control technology in the paris polyphylla planting technology, the invention particularly discloses a technology for enhancing the self resistance of the paris polyphylla and reducing the occurrence of the diseases of the paris polyphylla by using a plant growth regulator.
The invention is realized by the following scheme:
a plant growth regulator applied to Paris polyphylla comprises effective components of paclobutrazol, brassinolide and salicylic acid.
Preferably, the concentration of the paclobutrazol is 80-100 mg/L.
Preferably, the concentration of the brassinolide is 300-350 mg/L, and the concentration of the salicylic acid is 60-80 mg/L.
Preferably, the paclobutrazol, the brassinolide and the salicylic acid are mixed with 0.2-0.4% of organic silicon in a mass ratio during preparation and use.
Further, the invention provides a use method of the plant growth regulator applied to the paris polyphylla, which is characterized by comprising the following steps:
(1) spraying paclobutrazol solution to stems and leaves for 2-3 times during the planting period of the paris polyphylla;
(2) and spraying a brassinolide and salicylic acid mixed solution to stems and leaves for 3-4 times during the planting period of the paris polyphylla.
Preferably, the spraying in the step (1) is carried out 2-3 times continuously at an interval of 10-15 days every time after the seedlings are completely grown in 4-5 months every year.
Preferably, the spraying in the step (2) is carried out for 1 time every 7-10 days and 3-4 times continuously before the rainy season of 5-6 months per year comes.
Preferably, the spraying time in the steps (1) and (2) is ten points earlier.
The invention has the beneficial effects that
1. Paclobutrazol, brassinolide and salicylic acid, the defense mechanism of the paris polyphylla disease is to shorten the plant height of the paris polyphylla and increase the thickness of stems, so that the base part wound of the stems caused by lodging and bending of the paris polyphylla can be effectively avoided, and the invasion path of pathogenic bacteria wound is reduced; the leaf of the paris polyphylla can be thickened and greened, and the direct invasion of pathogenic bacteria can be effectively resisted; meanwhile, the defensive resistance of the paris polyphylla is induced, and the occurrence of diseases is reduced and lightened. The three plant growth regulators do not directly act on pathogenic microorganisms, do not cause drug resistance and drug resistance of the pathogenic microorganisms, and are a sustainable prevention and control means for the paris polyphylla diseases for a long time.
2. The invention relates to a preventive measure carried out in the early stage of occurrence of diseases of paris polyphylla, which can effectively reduce the occurrence of diseases of paris polyphylla such as white mold, brown spot, root rot, anthracnose, stem rot, leaf spot, gray mold, bacterial soft rot and the like, and alleviate the occurrence symptoms, belongs to a broad-spectrum disease prevention method, does not need to prevent and treat specific diseases, simultaneously has better prevention and treatment effect, and can effectively avoid the use of pesticides.
3. The paclobutrazol, the brassinolide and the salicylic acid are plant endogenous plant growth regulators, have the advantages of low dosage in the process of preventing the paris polyphylla diseases, short residual period in soil and safety to human bodies and the environment, and are originally in plants.
4. The invention can reduce the harm of harmful insects of paris polyphylla such as aphids, red spiders and the like to a certain extent.
5. The invention can also increase the yield of the paris polyphylla medicinal material to a certain extent and improve the total quality of the paris polyphylla.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
1. After the paris polyphylla seedlings are transplanted, in 4 months in the next year, after the seedlings are completely grown up, preparing a paclobutrazol solution with the concentration of 80mg/L, adding 0.2% of organic silicon into the paclobutrazol solution, spraying paris polyphylla stems and leaves before ten points in the morning, preparing the paclobutrazol solution with the concentration of 80mg/L again every other 10 days, adding 0.2% of organic silicon into the paclobutrazol solution, and spraying paris polyphylla stems and leaves before ten points in the morning.
2. After the paclobutrazol solution is sprayed, in 6 months, in the early vegetative growth stage of the Yunnan manyleaf Paris rhizome, a mixed solution of 300mg/L brassinolide and 60mg/L salicylic acid is sprayed once before the ten morning spots, organic silicon is added into the mixed solution according to the mass ratio of 0.2%, the mixed solution of 300mg/L brassinolide and 60mg/L salicylic acid is sprayed once again before the ten morning spots every 7 days, the organic silicon is added into the mixed solution according to the mass ratio of 0.2%, and the organic silicon is continuously sprayed for 3 times.
3. The incidence rates of diseases such as stem rot, leaf spot, brown spot, gray mold, bacterial soft rot, root rot, anthracnose and the like are obviously reduced, and the harm is reduced, wherein the stem rot and the bacterial soft rot are the best, the incidence rate of the stem rot is only 0.27 percent, the incidence rate of the bacterial soft rot is only 0.49 percent, and the harm is light.
The statistical method of each disease in the embodiment and the comparative example of the invention is a five-point sampling method, the single-point statistic is 0.25 square meters, the statistical period is the peak period of each disease and before falling seedlings in autumn, the occurrence statistical data is the number of the occurrence plants of each disease, which accounts for the statistical number of the Yunnan rhizoma paridis, is the occurrence rate of each disease of the Yunnan rhizoma paridis, and the data obtained in the embodiments and the comparative examples of the invention is the data of the statistics of the growth of the Yunnan rhizoma paridis in the current year of two years.
Example 2
1. After the paris polyphylla seedlings are transplanted, in 4 months next year and completely grown, preparing a paclobutrazol solution with the concentration of 100mg/L, adding 0.4% of organic silicon, spraying paris polyphylla stems and leaves before ten o 'clock in the morning, preparing the paclobutrazol solution with the concentration of 100mg/L again every 15 days later, adding 0.4% of organic silicon, and spraying paris polyphylla stems and leaves before ten o' clock in the morning.
2. After the paclobutrazol solution is sprayed, in 5 months, in the early vegetative growth stage of the Yunnan manyleaf Paris rhizome, a mixed solution of brassinolide with the concentration of 350mg/L and salicylic acid with the concentration of 80mg/L is sprayed once before the ten morning spots, organic silicon is added into the mixed solution according to the mass ratio of 0.4%, the mixed solution of the brassinolide with the concentration of 350mg/L and the salicylic acid with the concentration of 80mg/L is sprayed once again before the ten morning spots every 10 days, the organic silicon is added into the mixed solution according to the mass ratio of 0.4%, and the organic silicon is continuously sprayed for 2 times.
3. The incidence rates of diseases such as stem rot, leaf spot, brown spot, gray mold, bacterial soft rot, root rot, anthracnose and the like are obviously reduced, and the harm is reduced, wherein the stem rot and the bacterial soft rot are the best, the incidence rate of the stem rot is only 0.21 percent, the incidence rate of the bacterial soft rot is only 0.24 percent, and the harm is light.
Example 3
1. After the paris polyphylla seedlings are transplanted, in 4 months next year and completely grown, preparing a paclobutrazol solution with the concentration of 90mg/L, adding 0.4% of organic silicon, spraying paris polyphylla stems and leaves before ten o 'clock in the morning, preparing the paclobutrazol solution with the concentration of 100mg/L again every 15 days later, adding 0.4% of organic silicon, and spraying paris polyphylla stems and leaves before ten o' clock in the morning.
2. After the paclobutrazol solution is sprayed, in 5 months, in the early vegetative growth stage of the Yunnan manyleaf Paris rhizome, a mixed solution of brassinolide with the concentration of 320mg/L and salicylic acid with the concentration of 70mg/L is sprayed once before the ten morning spots, organic silicon is added into the mixed solution according to the mass ratio of 0.4%, a mixed solution of brassinolide with the concentration of 330mg/L and salicylic acid with the concentration of 80mg/L is sprayed once again before the ten morning spots every 10 days, organic silicon is added into the mixed solution according to the mass ratio of 0.4%, and the organic silicon is continuously sprayed for 2 times.
3. The incidence rates of diseases such as stem rot, leaf spot, brown spot, gray mold, bacterial soft rot, root rot, anthracnose and the like are obviously reduced, and the harm is reduced, wherein the stem rot and the bacterial soft rot are the best, the incidence rate of the stem rot is only 0.18 percent, the incidence rate of the bacterial soft rot is only 0.33 percent, and the harm is light.
Comparative example 1
1. After the paris polyphylla seedlings are transplanted, in 4 months in the next year, after the seedlings are completely grown up, preparing a paclobutrazol solution with the concentration of 80mg/L, adding 0.2% of organic silicon into the paclobutrazol solution, spraying paris polyphylla stems and leaves before ten points in the morning, preparing the paclobutrazol solution with the concentration of 80mg/L again every other 10 days, adding 0.2% of organic silicon into the paclobutrazol solution, and spraying paris polyphylla stems and leaves before ten points in the morning.
2. After the paclobutrazol solution is sprayed, in 6 months, at the early vegetative growth stage of the paris polyphylla, salicylic acid solution with the concentration of 60mg/L is sprayed once to the stems and leaves of the paris polyphylla before ten points in the morning, organic silicon is added into the mixed solution according to the mass ratio of 0.2%, the salicylic acid solution with the concentration of 60mg/L is sprayed once again to the stems and leaves of the paris polyphylla before ten points in the morning every 7 days, the organic silicon is added into the solution according to the mass ratio of 0.2%, and the solution is continuously sprayed for 3 times.
3. The incidence of diseases such as leaf spot, brown spot, gray mold, bacterial soft rot, anthracnose and the like is reduced to a certain extent, but the incidence of diseases such as root rot and stem rot is not obviously reduced, and the incidence of diseases is not reduced.
Comparative example 2
1. After the paris polyphylla seedlings are transplanted, in 4 months next year and after the seedlings are completely grown, preparing a paclobutrazol solution with the concentration of 80mg/L, adding 0.2% of organic silicon into the paclobutrazol solution, spraying paris polyphylla stems and leaves before ten o 'clock in the morning, preparing the paclobutrazol solution with the concentration of 80mg/L again every 10 days later, adding 0.2% of organic silicon into the paclobutrazol solution, and spraying the paris polyphylla stems and leaves before ten o' clock in the morning.
2. After the paclobutrazol solution is sprayed, in 5 months, at the early vegetative growth stage of the Yunnan manyleaf Paris rhizome, 350mg/L of brassinolide solution is sprayed once before the ten morning spots, organic silicon is added into the mixed solution according to the mass ratio of 0.2%, the 350mg/L of brassinolide solution is sprayed once again before the ten morning spots every 7 days, the organic silicon is added into the solution according to the mass ratio of 0.2%, and the solution is continuously sprayed for 3 times.
3. The incidence rates of stem rot, brown spot and gray mold are all obviously reduced, the harm is reduced, but the incidence rates of leaf spot, bacterial soft rot, root rot and anthracnose are still high although the harm is slight.
The paclobutrazol, brassinolide and salicylic acid have synergistic effect, and can not achieve good prevention and treatment effect by singly applying one or two. The paclobutrazol has the effects of dwarfing the paris polyphylla and increasing the thickness of stalks, but the application of high concentration can cause the paris polyphylla to be excessively dwarfed to inhibit the growth of the paris polyphylla, thereby influencing the yield of the paris polyphylla, and the appearance characters of the paris polyphylla can hardly be changed by low concentration, so that the spraying of brassinolide at the later stage can improve the current situation that the paris polyphylla is excessively dwarfed without influencing the thickening of the stalks.
After salicylic acid with a certain concentration is sprayed on plants, the salicylic acid is absorbed and transported through vascular bundles to induce the expression of disease course protein. The paris polyphylla is sensitive to the concentration of salicylic acid, when the concentration is low, the effect of preventing the diseases of the paris polyphylla cannot be achieved in a short period, the prevention and control effect can be achieved only after a certain amount of salicylic acid is accumulated in plants, when the concentration is high, phytotoxicity such as blackening and rotting of stems and leaves of the paris polyphylla and greening of leaf veins can be easily caused, the proper concentration of the disease-resistant salicylic acid can be generated in a short period, and the salicylic acid can be accumulated in the paris polyphylla in a certain period of time, so that the phytotoxicity of the salicylic acid with high concentration is generated. The brassinolide has the effect of regulating the vascular bundle development of the paris polyphylla, can effectively promote the absorption, transportation and expression of induced disease process protein of the salicylic acid, can utilize the low-concentration salicylic acid to induce the paris polyphylla to generate disease resistance in a short time, and can effectively avoid the defect that the high-concentration salicylic acid generates phytotoxicity and the low-concentration salicylic acid cannot generate the disease resistance.
Claims (8)
1. A plant growth regulator applied to Paris polyphylla is characterized in that the effective components of the regulator comprise paclobutrazol, brassinolide and salicylic acid.
2. The plant growth regulator applied to paris polyphylla as claimed in claim 1, wherein the concentration of paclobutrazol is 80-100 mg/L.
3. The plant growth regulator applied to paris polyphylla as claimed in claim 1, wherein the concentration of brassinolide is 300-350 mg/L, and the concentration of salicylic acid is 60-80 mg/L.
4. The plant growth regulator applied to Paris polyphylla according to any one of claims 1 to 3, wherein the paclobutrazol, brassinolide and salicylic acid are mixed with 0.2 to 0.4 percent of organosilicon by mass ratio when being prepared and used.
5. The use method of the plant growth regulator applied to the paris polyphylla as claimed in any of claims 1 to 3, which is characterized by comprising the following steps:
(1) spraying paclobutrazol solution to stems and leaves for 2-3 times during the planting period of the paris polyphylla;
(2) and spraying a brassinolide and salicylic acid mixed solution to stems and leaves for 3-4 times during the planting period of the paris polyphylla.
6. The use method according to claim 5, wherein the spraying in the step (1) is carried out 2-3 times continuously at an interval of 10-15 days after the seedlings are completely grown in 4-5 months per year.
7. The use method according to claim 5, wherein the spraying in the step (2) is carried out 1 time every 7-10 days and 3-4 times continuously before the rainy season of 5-6 months per year.
8. The use of claim 5, wherein the spraying time in step (1) (2) is ten o' clock before.
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| CN111296450A (en) * | 2020-02-26 | 2020-06-19 | 云南大学 | Multicomponent combined brassinolide plant growth regulator |
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| CN105732201A (en) * | 2016-02-24 | 2016-07-06 | 吕强 | Strawberry yield-increasing cultivating medium |
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