CN106900731A - Plant growth regulator composition with synergistic effect - Google Patents

Abstract

The invention discloses a plant growth regulator composition with synergistic effect. The active ingredients include A and B, wherein the active component A is thiadizuron, and the active component B is triacontanol and its derivatives. The invention also provides the use of the composition. Test results show that the composition of the invention can well regulate crop growth, improve disease resistance and stress resistance, promote crop health, and increase crop yield.

Description

Plant growth regulator composition with synergistic effect

technical field

The invention belongs to the application field of agricultural plant protection, and relates to a plant growth regulator composition, which contains active ingredients thiadidiuron and triacontanol or derivatives thereof.

Background technique

Thidiazuron (pyraclostrobin) is a new type of high-efficiency plant growth regulator. After being absorbed by plants, pyraclostrobin can promote the separation tissue between petiole and stem, thereby promoting the shedding of mature leaves. At higher concentrations, it can stimulate the production of ethylene. Promotes the activity of pectin and cellulase. Under the condition of low concentration, it has the function of cytokinin, and can induce the differentiation and budding of plant callus. The structural formula is as follows:

Triacontanol is a natural long carbon chain plant growth regulator. Its chemical name is n-triacontanol, and its structural formula is CH3(CH2)28CH2OH. Harmless and side effects to humans and animals, no pollution to the environment. In developed agricultural countries, as early as the 1970s and 1980s, triacontanol was fully sprayed as a plant growth regulator for high agricultural yields and optimized quality structure. Due to imperfect technology in my country, there is no sufficient rigorous attitude. If you act too hastily, you will go into a misunderstanding. The redevelopment of triacontanol is a national spark project, which was completed in 1996. The rejuvenated triacontanol is synchronized with the world level, and it will be accompanied by "WTO" to reform the agricultural structure, optimize products, maintain ecological balance, return to nature, increase production, and provide important technical substances for green food. Triacontanol can be absorbed by the stems and leaves of plants, and then promote the growth of plants, increase the accumulation of dry matter, improve the permeability of cell membranes, increase the content of chlorophyll, increase photosynthetic intensity, enhance amylase, multioxidase, peroxidase Enzyme activity. Triacontanol can promote germination, rooting, stem and leaf growth and flowering, make crops mature earlier, increase seed setting rate, enhance cold resistance and drought resistance, increase yield, and improve product quality. Derivatives of triacontanol generally include triaconyl phosphate or salts thereof. Triacontanyl phosphate (salt) easily enters the plant body and slowly releases triacontanol during the metabolism in the body, and because triacontanyl phosphate (salt) is in the molecular structure of triacontanol Phosphate (salt) is added to the plant, which has an important impact on the metabolism of plants.

Contents of the invention

The object of the present invention is to provide a plant growth regulator with synergistic effect to promote crop growth, improve crop resistance, crop yield and drought resistance. The inventors found that the combination of thiadizuron and triacontanol and its derivatives has a significant effect on regulating crop growth, increasing yield and improving drought resistance.

Another object of the present invention is to provide a preparation method of a plant growth regulator composition comprising two active ingredients A and B and its application in the field of agriculture to regulate and promote the growth of crops.

The purpose of the present invention can be achieved through the following measures:

A plant growth regulator composition with synergistic effect, the composition contains two active components A and B, wherein the active component A is thiadizuron, and the active component B is triacontanol or its derivatives , the weight ratio between the two components is that the weight ratio of the active component A to the active component B is 1:0.011-20.

In a preferred solution, the weight ratio of active component A to active component B is 1:0.012-18, and the weight ratio between the two can be further preferably 1:0.013-17 to make the effect more obvious.

In a preferred solution, the weight ratio between A and B components can be adjusted arbitrarily within the range of the following ratios: 1:0.011, 1:0.012, 1:0.013, 1:0.014, 1:0.015 . : 0.028, 1: 0.029, 1: 0.03, 1: 0.04, 1: 0.05, 1: 0.06, 1: 0.07, 1: 0.08, 1: 0.09, 1: 0.1, 1: 0.11, 1: 0.12, 1: 0.13 , 1:0.14, 1:0.15, 1:0.16, 1:0.17, 1:0.18, 1:0.19, 1:0.2, 1:0.3, 1:0.4, 1:0.5, 1:0.6, 1:0.7, 1 :0.8, 1:0.9, 1:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:11 , 1:12, 1:13, 1:14, 1:15, 1:16, 1:17, 1:18, 1:19, 1:20, or within the range formed by any two ratios to select within.

In the present invention, suitable triacontanol derivatives include triacontanyl phosphate or triaconyl phosphate, wherein triaconyl phosphate includes: potassium triacontanyl phosphate, sodium triaconyl phosphate Salt, triaconyl phosphate ammonium salt, or other triaconyl phosphate compounds.

The present invention finds through experiments that the composition is used to better regulate the growth of crops, promote the health of crops, improve the yield and drought resistance of crops, and the composition can be used in promoting or regulating plant growth in the agricultural field , especially in regulating the growth of sorghum or soybean crops.

The present invention provides the use of the composition comprising component A (thiadizuron) and component B (triacontanol or its derivatives) in the field of agriculture to regulate the growth of crops, especially in sorghum or soybean to regulate the growth of crops, It can be used to improve the effect of disease resistance and increase production.

In order to give full play to the advantageous effects of the present invention, the composition of the present invention can also be mixed with other pesticides (such as fungicides, insecticides, herbicides, plant growth regulators), fertilizers, etc., and these mixed with it are existing There are conventional pesticides or fertilizers disclosed in the art.

The composition of the present invention can be made into a pesticide-approved dosage form from active ingredients and pesticide adjuvants.

The above-mentioned composition can specifically include pesticide adjuvants, such as one or more of carriers, solvents, dispersants, wetting agents, adhesives, thickeners, adhesives, surfactants, etc., which can be used during application. Mix commonly used auxiliaries.

Suitable auxiliaries, which can be solid or liquid, are generally substances commonly used in the processing of dosage forms, such as natural or regenerated minerals, solvents, dispersants, wetting agents, adhesives, thickeners, binders or fertilizers .

The method of applying the composition of the present invention comprises applying the composition of the present invention to the above-ground parts of plant growth, especially the leaves or foliage. You can choose to soak the seeds or smear it on the surface of the control object. The frequency and amount of application depends on the biology and climatic conditions of the pathogen. A growing locus of plants, such as a paddy field, may be soaked with a liquid formulation of the composition, or the composition may be applied to the soil in solid form, such as in granular form (soil application).

These compositions may be applied containing the active ingredient alone or mixed with additives (pesticide adjuvants).

The composition of the present invention can be prepared into pesticide-acceptable formulations, such as aqueous formulations, suspension formulations, soluble liquid formulations, microcapsule formulations, microemulsions, and the like. According to the properties of these compositions, the purpose to be achieved by applying the composition and the environmental conditions, the composition can be applied by methods such as spraying, misting, dusting, sowing or pouring.

Microcapsule formulations suitable for the present invention include: microcapsule suspensions, microcapsule suspension-suspension concentrates, microcapsule suspension-water emulsions, etc., which are characterized in that the capsule wall (i.e. capsule core) contains active ingredients thidiazuron and 30 Alkanol or its derivatives are mixed according to a certain ratio, that is, the two are mixed to make microcapsules. The microcapsules are stably dispersed and suspended at a certain concentration in water as the continuous phase to form a microcapsule suspension. Or prepare one of the active ingredients into a microcapsule suspension, prepare the other active ingredient into an emulsion, mix the prepared two ingredients, stir, and shake well to obtain a microcapsule suspension-suspension agent or microcapsule suspension agent-water emulsion.

The composition of the present invention can be prepared into various dosage forms by known methods, and active ingredients and auxiliary agents, such as solvents and solid carriers, can be uniformly mixed and ground with surfactants when necessary to prepare the required formulations. dosage form.

The above-mentioned solvent can be selected from aromatic hydrocarbons, preferably containing 8-12 carbon atoms, such as xylene mixture or substituted benzene, phthalates, such as dibutyl phthalate or dioctanoic acid phthalate, aliphatic hydrocarbons, such as cyclic Hexane or paraffin, alcohols and glycols and their ethers and esters, such as ethanol, ethylene glycol, ethylene glycol monomethyl; ketones, such as cyclohexanone, strong polar solvents, such as N-methyl-2 -pyrrolidone, dimethylsulfoxide or dimethylformamide, and vegetable oil or vegetable oils, such as soybean oil.

The aforementioned solid carriers, such as those used for suspending and dispersible agents, are generally natural mineral fillers, for example talc, kaolin, montmorillonite or attapulgite. In order to manage the physical properties of the composition, it is also possible to add highly dispersible silicic acid or highly dispersible absorbent polymer carriers, such as granular adsorptive carriers or non-adsorbed carriers, suitable granular adsorptive carriers are porous types, such as pumice, bentonite or Bentonite; suitable non-absorbent carriers such as calcite or sand. In addition, a large number of pregranulated materials of inorganic or organic nature can be used as supports, in particular dolomite.

Depending on the chemical nature of the active ingredient in the composition of the invention, suitable surfactants are ligninsulfonic acid, naphthalenesulfonic acid, phenolsulfonic acid, alkaline earth metal or amine salts, alkylarylsulfonates, alkyl Sulphates, alkyl sulphonates, fatty alcohol sulphates, fatty acid and sulphated fatty alcohol glycol ethers, also sulphonated naphthalene and condensates of naphthalene derivatives with formaldehyde, naphthalene or naphthalene sulphonic acid with phenol and formaldehyde Condensate, polyoxyethylene octylphenyl ether, ethoxylated isooctylphenol, octylphenol, nonylphenol, alkylaryl polyglycol ether, tributylbenzene polyglycol ether, tributylbenzene polyglycol ether, Stearyl phenyl polyglycol ether, alkyl aryl polyether alcohol, ethoxylated castor oil, polyoxyethylene alkyl ether, ethylene oxide condensate, ethoxylated polyoxypropylene, polyethylene laurate Glycol ether acetals, sorbitol esters, lignin sulfite waste liquor and methylcellulose.

In the composition of the present invention, the mass content of the active ingredient in the composition can reach 0.1-80%, preferably 0.1-50%, more preferably 0.2-30%.

Plants in the present invention include but are not limited to sorghum or soybean.

The two active ingredients in the composition of the present invention exhibit a synergistic effect, and the activity of the composition is more significant than the expected sum of the activities of the individual compounds, as well as the individual activity of the individual compounds. Other features of the composition of the present invention are mainly as follows: 1. The compounding of the composition of the present invention has obvious synergistic effect; 2. The composition of the present invention can well regulate the growth of crops and improve disease resistance. Stress resistance, promoting crop health, increasing crop yield, improving crop drought resistance, etc.

detailed description

In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not used to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the within the protection scope of the present invention.

Percentages in all formulations of the following examples are percentages by weight (percentage). The processing techniques of various preparations of the composition of the present invention are prior art, and can be changed according to different situations.

One, dosage form preparation embodiment

(1) Processing and Examples of Suspending Agent

Mix the active ingredients thiadizuron and triacontanol with the dispersant, wetting agent, thickener and water according to the proportion of the formula, and mix them evenly, and get the semi-finished product after sand milling and/or high-speed shearing. After analysis, add water to mix evenly and filter to obtain the finished product.

Embodiment 1: 9.9% thiadizuron triacontanol suspension concentrate

Thidiazuron 9.9%, triacontanol 0.1%, xanthan gum 4%, white carbon black 6%, glycerol 3%, sodium benzoate 4%, fatty alcohol polyoxyethylene ether phosphate 5%, water to make up to 100%.

Example 2: 3.05% thiadizuron triadecyl potassium phosphate suspension concentrate

Thidiazuron 3%, triacyl potassium phosphate 0.05%, white carbon black 4%, ethylene glycol 6%, sodium lignosulfonate 8%, xanthan gum 3%, water to make up to 100%.

Embodiment 3: 1.9% Thidiazuron Triacontanol Suspending Concentrate

Thidiuron 0.1%, triacontanol 1.8%, ethylene glycol 5%, kaolin 3%, aluminum magnesium silicate 7%, sodium lignosulfonate 6%, water to make up to 100%.

Embodiment 4: 1.42% thiadizuron · triadecyl sodium phosphate suspending agent,

Thidiazuron 1.4%, triacontanol 0.02%, bentonite 5%, glycerin 5%, sodium methylnaphthalenesulfonate formaldehyde condensate 4%, water to make up to 100%.

(2) Processing and Examples of Microemulsion

The active ingredients thiadizuron and triacontanol are mixed with solvent, emulsifier, and fluid in proportion, and after fine grinding and high-speed shearing, a semi-finished product is obtained, which is then processed into a finished product.

Embodiment 5: 0.21% thiadizuron triadecyl phosphate microemulsion

Thidiazuron 0.03%, triacyl phosphate 0.18%, 3% cyclohexanone, 5% xylene, 20% calcium dodecylbenzenesulfonate, and water to make up to 100%.

Embodiment 6: 0.6% thiadizuron·tririasyl potassium phosphate microemulsion

Thidiazuron 0.5%, triacyl potassium phosphate 0.1%, 6% methanol, 4% xylene, 15% dibenzyl biphenyl polyoxyethylene ether, and water to make up to 100%.

Embodiment 7: 1.6% thiadizuron·tririasyl potassium phosphate microemulsion

Thidiazuron 0.1%, potassium tridecyl phosphate 1.5%, 5% cyclohexanone, 7% xylene, 22% styrylphenyl polyoxyethylene ether, and water to make up to 100%.

Embodiment 8: 0.64% thiadizuron triacontanol microemulsion

0.62% thiadiuron, 0.02% triacontanol, 3% cyclohexanone, 5% xylene, 20% styrylphenylpolyoxyethylene-polyoxypropylene ether, and water to make up to 100%.

(3) Processing and Examples of Microcapsules

The active ingredients thiadizuron and triacontanol are mixed according to a certain ratio, that is, the two are mixed to make microcapsules. The microcapsules are stably dispersed and suspended at a certain concentration in water as the continuous phase to form a microcapsule suspension. Or prepare one of the active ingredients into a microcapsule suspension, prepare the other active ingredient into an emulsion, mix the prepared two ingredients, stir, and shake well to obtain a microcapsule suspension-suspension agent or microcapsule suspension agent-water emulsion.

Example 9: 2.2% Thidiazuron Triacontanol Microcapsule Suspension

Thidiazuron 2.1% Triacontanol 0.1%, Methyl Coconut Oil 17%, Polyoxyethylene Monopalmitate 5%, BHT 3%, Attractant Amino Acid 3%, Lignosulfonate 4%, Glycerol 5 %, Kethon 3%, vinyl acetate emulsion 4%, xanthan gum 2%, water to make up to 100%.

Example 10: 4.2% Thidiazuron Triacontanol Microcapsule Suspension-Suspension Concentrate

Thidiazuron 0.2%, triacontanol 4%, turpentine vegetable oil 14%, glyceryl lactate 6%, emulsifier polyoxyethylene castor oil 4%, stabilizer triphenyl phosphite 3%, toluene diisocyanate 15%, Acrylic acid-acrylate copolymer 5%, dipropylene glycol 3%, preservative sodium benzoate 1%, thickener xanthan gum 2.2%, water to make up to 100%.

Example 11: 0.56% thiadizuron triadecyl phosphate microcapsule suspension

Thidiazuron 0.55%, Triacyl Phosphate 0.01%, Gelatin 15%, Ethanol 5%, Triethylamine 3%, Ethylenediamine 5%, Naphthalene Sulfonate Formaldehyde Condensate 5%, Water to 100% .

Example 12: 0.43% thiadizuron · triadecylamine phosphate capsule suspension-suspension concentrate

Thidiazuron 0.42%, triacontanol 0.01%, turpentine vegetable oil 12%, attractant fatty acid glyceride 6%, polyoxyethylene lauryl ether 5%, ethylene glycol 3.5%, stabilizer potassium dihydrogen phosphate 2%, and Capsule prepolymer formaldehyde-urea prepolymer 15%, carrageenan 0.5%, sodium lignosulfonate 4%, preservative sodium benzoate 1%, water to make up to 100%.

(4) Processing and Examples of Soluble Liquids

Put the mixture of active ingredients thiadizuron and triacontanol in a certain proportion, surfactants, additives and water in an enamel kettle, and stir fully in a water bath until a transparent liquid is obtained, that is, a soluble liquid.

Example 13: 0.4% thiadizuron·tririadecylamine phosphate soluble solution

Thidiazuron 0.2%, Triacontanol 0.2%, Benzyldimethylphenol Ethoxylate 5%, Cyclohexanone 4%, Azazone dimethylformamide 6%, Ethylene Glycol 5%, Water to make up to 100%.

Example 14: 0.64% Thidiazuron Triacontanol Soluble Agent

Thidiazuron 0.60%, triacontanol 0.04%, alkylphenol polyoxyethylene ether polyoxypropylene ether 3%, methanol 3%, ethylene glycol 5%, and water to make up to 100%.

Example 15: 0.81% Thidiazuron Triacontanol Soluble Agent

Thidiazuron 0.8%, triacontanol 0.01%, sodium alkylbenzene sulfonate 6%, methanol 13%, ethylene glycol 4%, and water to make up to 100%.

Example 16: 1.1% Thidiazuron Triacontanol Soluble Agent

Thidiazuron 1%, triacontanol 0.011%, potassium lignin benzene sulfonate 6%, dimethyl sulfoxide 5%, isopropyl glycol 2%, water to make up to 100%.

2. Drug efficacy verification test

(1) Examples of biological assays

1. Comprehensive determination test of thiadizuron and triacontanol compound on sorghum growth regulation

Dilute thiadizuron and triacontanol with acetone at a certain concentration, spray the stems and leaves of the crops, and measure the effects of each concentration on the growth of the crops in the field, including the plant height, plant diameter, root length, and disease resistance of the crops , fruit quality, and yield were evaluated comprehensively.

Plant height control rate=(clear water control plant height-plant height after treatment)/clear water control plant height*100%

Stem diameter improvement rate=(clean water contrast plant stem diameter-plant stem diameter after treatment)/clear water contrast plant stem diameter*100%

Preventive effect=(morbidity index of (clear water contrast)-treatment post-morbidity index)/morbidity index of clear water contrast*100%

Grain thousand-grain weight increase rate=(grain thousand-grain weight of clean water control-grain thousand-grain weight after treatment)/grain thousand-grain weight of clean water control*100%

Yield improvement rate per mu = (yield per mu of clear water contrast - yield per mu after treatment) / yield per mu of clear water contrast * 100%

Table 1. Summary table of comprehensive determination of thiadizuron and triacontanol compound on sorghum growth regulation

Note: "Thia" in the table is the abbreviation of "thiadizuron", and "three" is the abbreviation of "triacontanol". Spraying period: Spraying at the seedling stage of sorghum. At this stage, sorghum plants have not yet started to suffer from diseases. The frequency of spraying: 2 times, to promote the growth process of sorghum, to mature early, and to increase production significantly.

Through experiments, the inventors found that there is a good synergistic effect between thiadizuron and triacontanol, and that thiadidiuron and triacontanol are mixed in different proportions, compared with a single dose of thiadizuron and triacontanol. , as well as the clear water control, have a significant effect on sorghum growth regulation, mainly in: promoting the growth of sorghum vegetative body, controlling the excessive growth of sorghum plants, promoting the increase of stem diameter, preventing lodging, promoting spikelet differentiation, improving sorghum's own disease resistance, and increasing grain Weight, increase the comprehensive yield of sorghum.

(2) Field efficacy verification test

1. Field comprehensive experiment of mixing thiadizuron and triacontanol on soybean growth regulation and drought resistance increase

Application period: soybean 4-5 leaf stage application.

Application times 2 times. Utilize the preparation embodiment of the present invention to carry out spraying, repeat three times, the result takes the average value.

Table 2 Field comprehensive experiment of thiadizuron mixed with triacontanol to regulate growth of soybean

Show from table 2 experimental data, product of the present invention is sprayed at soybean 4-5 leaf stage, can effectively promote the thick stem of soybean, regulate soybean growth, improve single plant pod number and soybean grain weight, thereby improve the yield of soybean.

Claims (10)

1. a kind of plant growth regulator composition with synergistic effect, it is characterised in that said composition includes two kinds of work of A and B Property component, wherein active component A is Thidiazuron, and active component B is triacontanol or derivatives thereof, active component A and activearm The weight ratio for dividing B is 1：0.011~20.

2. composition according to claim 1, it is characterised in that the weight ratio of active component A and active component B is 1： 0.012~18.

3. composition according to claim 2, it is characterised in that the weight ratio of active component A and active component B is 1： 0.013~17.

4. composition according to claim 2, it is characterised in that active component triacontanol derivative includes melissyl Phosphate or its salt.

5. composition according to claim 4, it is characterised in that the melissyl phosphate includes melissyl phosphoric acid Sylvite, melissyl sodium ascorbyl phosphate or melissyl phosphate amine salt.

6. composition according to claim 1, it is characterised in that said composition is made up on agricultural chemicals of active component and auxiliary agent The formulation of permission.

7. composition according to claim 6, it is characterised in that the formulation be suspending agent, microemulsion, soluble concentrate or Encapsulated form.

8. composition according to claim 6, it is characterised in that it is characterized in that the active component is in the composition Mass content is 0.1~80%.

9. the composition pesticide in claim 1~7 described in any one is in agriculture field promotion or the use of coordinate plant growth On the way.

10. purposes according to claim 9, it is characterised in that said composition is on regulation sorghum or soybean crops growth Using.