CN102273460B - Plant growth regulator and application thereof - Google Patents
Plant growth regulator and application thereof Download PDFInfo
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- CN102273460B CN102273460B CN201110166461.2A CN201110166461A CN102273460B CN 102273460 B CN102273460 B CN 102273460B CN 201110166461 A CN201110166461 A CN 201110166461A CN 102273460 B CN102273460 B CN 102273460B
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Abstract
The invention discloses a plant growth regulator and application thereof. The plant growth regulator has active components of prohexadione calcium and uniconazole. Experiment show that prohexadione calcium and uniconazole have obvious synergism, so as to realize an ideal anti-lodging effect, eliminate side-effects caused by individual existence, and substantially reduce a usage amount of the active components, environmental pollution, and agricultural cost.
Description
Technical field
The present invention relates to a plant growth regulators and application thereof.
Background technology
The prosperous long lodging of paddy rice, wheat, corn and Soybean and Other Crops, brings very large loss to crop production, has also limited the further raising of output.
The general prohecadione calcium by name of Prohexadione calcium, chemical name is 3,5-dioxo-4-propiono cyclohexane-carboxylic acid calcium.
Summary of the invention
An object of the present invention is to provide two plant growth regulators.
The first plant growth regulator provided by the present invention, its active component is Prohexadione calcium and uniconazole P.
In above-mentioned the first plant growth regulator, the quality proportioning of described Prohexadione calcium and uniconazole P is 1: 100 to 10: 1; Preferably 1: 10 to 10: 1; Be specially again 1: 1,4: 1,1: 2,10: 1,1: 4,5: 1,6: 1,1: 9,1: 100 or 1: 24.
In above-mentioned the first plant growth regulator, the formulation of described plant growth regulator is water dispersible granules.
The second plant growth regulator provided by the present invention, by Prohexadione calcium, uniconazole P, wetting agent, dispersant, disintegrant, binding agent and media assemblage.
In above-mentioned the second plant growth regulator, the mass percent that described Prohexadione calcium accounts for described plant growth regulator is 0.1%-50%; Be specially 0.1%-30% or 5%-30%, then be specially 0.1%, 0.5%, 3%, 4%, 5%, 8%, 20%, 25% or 30%.
In above-mentioned the second plant growth regulator, the mass percent that described uniconazole P accounts for described plant growth regulator is 0.1%-72%; Be specially 5%-20%, then be specially 0.1%, 2%, 5%, 10%, 20%, 36%, 50% or 72%.
In above-mentioned the second plant growth regulator, the mass percent that described wetting agent accounts for described plant growth regulator is 1%-10% or 2%-5%, is specially 2%-5% or 2%-4%, then is specially 2%, 3%, 4% or 5%;
In above-mentioned the second plant growth regulator, the mass percent that described dispersant accounts for described plant growth regulator is 1%-10% or 3%-7%, is specially 5%-7%, then is specially 3%, 5%, 6% or 7%.
In above-mentioned the second plant growth regulator, the mass percent that described disintegrant accounts for described plant growth regulator is 2%-20%, is specially 10%-15%, then is specially 2%, 10%, 15% or 20%;
In above-mentioned the second plant growth regulator, the mass percent that described binding agent accounts for described plant growth regulator is 1%-10% or 2%-5%, is specially 2%, 3% or 5%.
In above-mentioned the second plant growth regulator, described wetting agent is as lower at least one: dioctyl sodium sulfosuccinate, Nekal BX, lauryl sodium sulfate, neopelex, ethoxylated dodecyl alcohol sodium sulphate and fatty alcohol-polyoxyethylene ether;
In above-mentioned the second plant growth regulator, described dispersant is as lower at least one: the copolymer of calcium lignosulfonate, sodium lignin sulfonate, acrylic acid and maleic anhydride, naphthalenesulfonate formaldehyde condensation compound and acrylate homopolymer salt;
In above-mentioned the second plant growth regulator, described disintegrant is as lower at least one: sodium carboxymethylcellulose, ammonium sulfate, sodium carboxymethyl starch, urea, sodium chloride, anhydrous sodium sulfate and calcium chloride;
In above-mentioned the second plant growth regulator, described binding agent is as lower at least one: polyethylene glycol, gelatin, polyvinylpyrrolidone, carboxymethyl cellulose, starch and polyvinyl alcohol;
In above-mentioned the second plant growth regulator, described filler is as lower at least one: bentonite, precipitated calcium carbonate, diatomite, white carbon, talcum powder, atlapulgite, kaolin, attapulgite and potter's clay;
In above-mentioned the second plant growth regulator, the weight average molecular weight of polyethylene glycol is 10000; The weight average molecular weight of sodium lignin sulfonate is 5000; The weight average molecular weight of polyvinylpyrrolidone is 5000-700000; The weight average molecular weight 272.38 of ethoxylated dodecyl alcohol sodium sulphate; The weight average molecular weight 575-605 of fatty alcohol-polyoxyethylene ether; The weight average molecular weight of polyvinyl alcohol is 63800-114400; The weight average molecular weight of acrylate homopolymer salt is 15000-30000; The weight average molecular weight of the copolymer of described acrylic acid and maleic anhydride is 15000-30000.
Above-mentioned arbitrary described plant growth regulator is following 1) to 5) in arbitrary described application also belong to protection scope of the present invention:
1) regulate crop yield, be specially raising crop yield;
2) regulate crop tiller number, be specially and increase crop tiller number;
3) regulate crop plant height or regulate crop fringe position high, be specially reduce crop plant height or reduce crop fringe position high;
4) regulate crop base portion 1-3 length of internode, be specially and shorten crop base portion 1-3 length of internode;
5) improve crop lodging tolerance.
In above-mentioned application, described crop is gramineous crop or legume; Described gramineous crop is paddy rice, wheat or corn; Described legume is soybean.
Last object of the present invention is to provide the using method of above-mentioned arbitrary described plant growth regulator.
The using method of plant growth regulator provided by the invention, is by described plant growth regulator water wiring solution-forming, at crop growth period, carries out foliar spray; Described crop comprises paddy rice, wheat, corn and soybean.
In actual applications, the water dispersible granules dilute with water of the present invention effective dose, carries out foliage spray, and adjustable plant growth is controlled stipes and extended, and prevents prosperous length and lodging.The present invention can be used for various crop, comprises paddy rice, wheat and maize etc.
Experiment shows, uniconazole P and Prohexadione calcium are mixed and have obvious synergistic effect, reach desirable lodging-prevention effect, eliminate the side effect of alone existence simultaneously, greatly reduce the usage amount of active ingredient, reduces environmental pollution, and obviously reduces agricultural cost.
Experiment also shows, in the mixture of uniconazole P and Prohexadione calcium, add auxiliary agent and filler, be made into water dispersible granules, can directly use water dispersible granules, and need not be prepared into the formulations such as missible oil, aqueous emulsion and microemulsion, can overcome the harm that missible oil with an organic solvent brings to environment in a large number, also can overcome the harm that wetting powder dust drift etc. brings to environment, operator; Meanwhile, water dispersible granules product is easy to packing, metering, transportation and storage, to the mankind and Environmental security, is a kind of optimal selection that substitutes traditional missible oil and pulvis.
Compare with existing plant growth regulator, the water dispersible granules of Prohexadione calcium of the present invention and uniconazole P has following features:
1, apply and compare separately with Prohexadione calcium, can effectively regulate paddy rice, wheat, corn and Soybean and Other Crops growth, control stipes and extend, prevent prosperous length and lodging; Reduced agriculture application cost;
2, apply and compare separately with uniconazole P, greatly reduce the side effect to output organ;
3, water dispersible granules, to environment, people and animals and other beneficial organism safety, is difficult for producing poisoning, is easy to control discharge and orientation; Fast and there is no a bales stained without dust, particle disintegration rate; Storage-stable is good, can preserve more than 2 years; Preparation technology is simpler, and suitable batch production is produced.
Embodiment
The experimental technique using in following embodiment if no special instructions, is conventional method.
In following embodiment, material used, reagent etc., if no special instructions, all can obtain from commercial channels.
Test plant:
Paddy rice, kind, for richer, is Japanese introduced variety.
Paddy rice, kind, for cultivating rice 12, is numbered black careful rice 2006009.
Wheat, kind is capital winter No. 8, is numbered state and examines wheat 990008.
Corn, kind is Nongda 3138, is numbered state and examines beautiful 980004.
Soybean, kind is middle yellow No. 13, is numbered state and examines beans 2001008.
The public can buy from market as above plant variety.
Reagent agent:
Prohexadione calcium (85% former medicine, Yizailing Agriculture Science and Technology Co., Ltd., Hubei); Uniconazole P (95% former medicine, purchased from Jiangsu Qi Zhou green chemical industry Co., Ltd).
The weight average molecular weight of polyethylene glycol is 10000;
Copolymer of maleic anhydride and acrylic acid (MA-AA), is also the copolymer of acrylic acid and maleic anhydride, and weight average molecular weight is 15000-30000;
The weight average molecular weight 5000 of sodium lignin sulfonate;
The weight average molecular weight 5000-700000 of polyvinylpyrrolidone (K30);
The weight average molecular weight 272.38 of ethoxylated dodecyl alcohol sodium sulphate;
The weight average molecular weight 575-605 of fatty alcohol-polyoxyethylene ether;
The weight average molecular weight 63800-114400 of polyvinyl alcohol;
The weight average molecular weight of acrylate homopolymer salt is 15000-30000.
In embodiment 1-10, the nature examination method of water dispersible granules is as follows:
Nature examination: carry out product detection according to water dispersible granules quality control index, index includes effective component content, wetability, dispersion (disintegration) property, foaming characteristic, pH scope, suspensibility and heat storage stability etc.Concrete grammar is as follows:
Take 1.0 grams of samples and pour the band plug graduated cylinder that 250 milliliters of standard hard water are housed into, the time that record product all departs from liquid level is wetability: repeatedly put upside down back and forth graduated cylinder, the number of times that records the whole disintegrations dispersions of sample is dispersion (disintegration) property; Put upside down back and forth after graduated cylinder 30 times, after standing 30 seconds, record the foaming characteristic that foam volume is product; After standing 30 minutes, with vavuum pump, remove graduated cylinder upper strata 90% volume solution to the w that weighs
1dried and clean culture dish, and with a small amount of standard hard water, rinse graduated cylinder and move to culture dish 2 times, dry to constant weight w for 80 ℃
2, calculate suspensibility %=(1-(w
2-w
1)) * 10/9 * 100%.
Take 1.0 grams of samples and pour the band plug graduated cylinder that 100 milliliters of standard hard water are housed into, put upside down back and forth 30 times, with pH meter, measure pH scope;
Use detects active ingredient Prohexadione calcium and uniconazole P content with the high performance liquid chromatograph (U.S. Agilent company, 1100) of UV-detector.Prohexadione calcium high-efficient liquid phase chromatogram condition is as follows, column packing: octadecyl silylanizing silica gel (particle diameter 5 μ m); Post: internal diameter 4.6mm, long 150mm stainless steel tube; Column temperature: 40 ℃; Detector: wavelength 275nm; Mobile phase: acetonitrile: water: acetic acid (30: 70: 0.5) mixed solution; Flow velocity: 1.0ml/min; Retention time: 10min.Before post, methylate derivative, exchange naphthenic acid carry out quantitatively by peak area method, it is multiplied by 1.18 coefficient conversions is Prohexadione calcium salt content.Uniconazole P high-efficient liquid phase chromatogram condition is as follows, column packing: the anti-phase Zorbax SB of Waters (particle diameter 5 μ m); Post: internal diameter 4.6mm, long 150mm stainless steel tube; Column temperature: 25 ℃; Detector: wavelength 254nm; Mobile phase: methyl alcohol: water (75: 25) mixed solution; Flow velocity: 0.8ml/min; Retention time: 12min.
The sample that takes certain mass packs, and places 14 days for 54 ℃, then detects the wherein content of Prohexadione calcium and uniconazole P by high performance liquid chromatography, according to changes of contents, calculates active ingredient heat storage resolution ratio.
The preparation (1 to 1) of embodiment 1,0.2% Prohexadione calcium Uniconazole water dispersible granules
Form: former medicine and auxiliary agent are selected and proportioning is: former medicine 0.12 mass parts of 85% Prohexadione calcium (pure approximately 0.1 mass parts), former medicine 0.11 mass parts of 95% uniconazole P (pure approximately 0.1 mass parts), wetting agent is dioctyl sodium sulfosuccinate 2 mass parts, dispersant is calcium lignosulfonate 5 mass parts, disintegrant is sodium carboxymethylcellulose 15 mass parts, binding agent is polyethylene glycol 2 mass parts, and filler is bentonite 75.77 mass parts.
The performance indications of 0.2% Prohexadione calcium Uniconazole water dispersible granules of embodiment 1 preparation are: Prohexadione calcium content 0.10% (quality percentage composition), uniconazole P content 0.10% (quality percentage composition), moisture 1.0% (quality percentage composition), wetability qualified (5 seconds), dispersed (disintegration) qualified (6 times), foaming characteristic qualified (15 milliliters), pH value 6.0, suspensibility 90%, screen analysis 99%, heat storage stability is qualified, active ingredient Prohexadione calcium resolution ratio 0.5%, active ingredient uniconazole P resolution ratio 1.0%.
Water dispersible granules preparation method: calculate respectively each amounts of components by each proportioning, weigh, mix, obtain compound; Compound granulation after ultra micro air-flow crushing (after pulverizing, granularity is below 10-25 μ m); Oven dry, 20-60 mesh sieve divide, and obtain water dispersible granules.
The preparation (3 to 2) of embodiment 2,10% Prohexadione calcium Uniconazole water dispersible granules
Former medicine and auxiliary agent are selected and proportioning is: former medicine 9.5 mass parts of 85% Prohexadione calcium (pure approximately 8 mass parts), former medicine 2.2 mass parts of 95% uniconazole P (pure approximately 2 mass parts), wetting agent is Nekal BX 3 mass parts, dispersant is the acrylic copolymer salt (copolymer of acrylic acid and maleic anhydride, mean molecule quantity is 15000-30000, Beijing Guangyuan Yinong Chemical Co.,Ltd, trade name: GY-D06) 6 mass parts, disintegrant is ammonium sulfate 10 mass parts, binding agent is gelatin 3 mass parts, and filler is precipitated calcium carbonate 66.3 mass parts.Concrete preparation process is with embodiment 1.
The assay method of 10% each performance indications of Prohexadione calcium Uniconazole water dispersible granules of embodiment 2 preparations is with embodiment 1.Concrete measurement result is: Prohexadione calcium content 8.05%, uniconazole P content 2.07%, moisture 1.2%, wetability qualified (5 seconds), dispersed (disintegration) qualified (8 times), foaming characteristic qualified (10 milliliters), pH value 6.7, suspensibility 88%, screen analysis 98%, heat storage stability is qualified, active ingredient Prohexadione calcium resolution ratio 0.8%, active ingredient uniconazole P resolution ratio 1.2%.
The preparation (1 to 2) of embodiment 3,15% Prohexadione calcium Uniconazole water dispersible granules
Former medicine and auxiliary agent are selected and proportioning is: former medicine 5.9 mass parts of 85% Prohexadione calcium (pure approximately 5 mass parts), former medicine 10.6 mass parts of 95% uniconazole P (pure approximately 10 mass parts), wetting agent is lauryl sodium sulfate 4 mass parts, dispersant is sodium lignin sulfonate 7 mass parts, disintegrant is sodium carboxymethyl starch 10 mass parts, binding agent is polyethylene glycol 5 mass parts, and filler is diatomite 57.5 mass parts.Concrete preparation process is with embodiment 1.
The assay method of 15% each performance indications of Prohexadione calcium Uniconazole water dispersible granules of embodiment 3 preparations is with embodiment 1.Concrete measurement result is: Prohexadione calcium content 5.01%, uniconazole P content 10.02%, moisture 1.2%, wetability qualified (5 seconds), dispersed (disintegration) qualified (10 times), foaming characteristic qualified (10 milliliters), pH value 6.2, suspensibility 91%, screen analysis 99%, heat storage stability is qualified, active ingredient Prohexadione calcium resolution ratio 0.3%, active ingredient uniconazole P resolution ratio 0.9%.
The preparation (10 to 1) of embodiment 4,22% Prohexadione calcium Uniconazole water dispersible granules
Former medicine and auxiliary agent are selected and proportioning is: former medicine 23.8 mass parts of 85% Prohexadione calcium (pure approximately 20 mass parts), former medicine 2.2 mass parts of 95% uniconazole P (pure approximately 2 mass parts), wetting agent is neopelex 4 mass parts, dispersant is that (mean molecule quantity is 15000-30000 to acrylate homopolymer salt, Beijing Guangyuan Yinong Chemical Co.,Ltd, trade name: GY-D04) 6 mass parts, disintegrant is urea 10 mass parts, binding agent is polyvinylpyrrolidone (K30) 5 mass parts, and filler is white carbon 49 mass parts.Concrete preparation process is with embodiment 1.
The assay method of 20% each performance indications of Prohexadione calcium Uniconazole water dispersible granules of embodiment 4 preparations is with embodiment 1.Concrete measurement result is: Prohexadione calcium content 20.15%, uniconazole P content 2.03%, moisture 1.3%, wetability qualified (5 seconds), dispersed (disintegration) qualified (8 times), foaming characteristic qualified (15 milliliters), pH value 6.3, suspensibility 90%, screen analysis 99%, heat storage stability is qualified, active ingredient Prohexadione calcium resolution ratio 0.7%, active ingredient uniconazole P resolution ratio 1.0%.
The preparation (1 to 4) of embodiment 5,25% Prohexadione calcium Uniconazole water dispersible granules
Former medicine and auxiliary agent are selected and proportioning is: former medicine 6.0 mass parts of 85% Prohexadione calcium (pure approximately 5 mass parts), former medicine 21.2 mass parts of 95% uniconazole P (pure approximately 20 mass parts), wetting agent is Nekal BX 3 mass parts, dispersant is naphthalenesulfonate formaldehyde condensation compound 5 mass parts, disintegrant is sodium chloride 15 mass parts, binding agent is gelatin 2 mass parts, and filler is talcum powder 47.8 mass parts.Concrete preparation process is with embodiment 1.
The assay method of 25% each performance indications of Prohexadione calcium Uniconazole water dispersible granules of embodiment 5 preparations is with embodiment 1.Concrete measurement result is: Prohexadione calcium content 5.02%, uniconazole P content 20.10%, moisture 1.5%, wetability qualified (8 seconds), dispersed (disintegration) qualified (7 times), foaming characteristic qualified (15 milliliters), pH value 6.6, suspensibility 91%, screen analysis 98%, heat storage stability is qualified, active ingredient Prohexadione calcium resolution ratio 0.9%, active ingredient uniconazole P resolution ratio 1.2%.
The preparation (5 to 1) of embodiment 6,30% Prohexadione calcium Uniconazole water dispersible granules
Former medicine and auxiliary agent are selected and proportioning is: former medicine 29.5 mass parts of 85% Prohexadione calcium (pure approximately 25 mass parts), former medicine 5.3 mass parts of 95% uniconazole P (pure approximately 5 mass parts), wetting agent is ethoxylated dodecyl alcohol sodium sulphate 3 mass parts, dispersant is calcium lignosulfonate 7 mass parts, disintegrant is sodium carboxymethyl starch 15 mass parts, binding agent is gelatin 2 mass parts, and filler is atlapulgite 38.2 mass parts.Concrete preparation process is with embodiment 1.
The assay method of 30% each performance indications of Prohexadione calcium Uniconazole water dispersible granules of embodiment 6 preparations is with embodiment 1.Concrete measurement result is: Prohexadione calcium content 25.02%, uniconazole P content 5.00%, moisture 1.0%, wetability qualified (5 seconds), dispersed (disintegration) qualified (8 times), foaming characteristic qualified (12 milliliters), pH value 6.3, suspensibility 85%, screen analysis 98%, heat storage stability is qualified, active ingredient Prohexadione calcium resolution ratio 0.7%, active ingredient uniconazole P resolution ratio 0.7%.
The preparation (6 to 1) of embodiment 7,35% Prohexadione calcium Uniconazole water dispersible granules
Former medicine and auxiliary agent are selected and proportioning is: former medicine 35.4 mass parts of 85% Prohexadione calcium (pure approximately 30 mass parts), former medicine 5.3 mass parts of 95% uniconazole P (pure approximately 5 mass parts), wetting agent is dioctyl sodium sulfosuccinate 2 mass parts, dispersant is the acrylic copolymer salt (copolymer of acrylic acid and maleic anhydride, mean molecule quantity is 15000-30000, Beijing Guangyuan Yinong Chemical Co.,Ltd, trade name: GY-D06) 6 mass parts, disintegrant is sodium carboxymethylcellulose 15 mass parts, binding agent is PVP K30 3 mass parts, filler is kaolin 33.3 mass parts.Concrete preparation process is with embodiment 1.
The assay method of 35% each performance indications of Prohexadione calcium Uniconazole water dispersible granules of embodiment 7 preparations is with embodiment 1.Concrete measurement result is: Prohexadione calcium content 30.00%, uniconazole P content 5.01%, moisture 1.4%, wetability qualified (5 seconds), dispersed (disintegration) qualified (15 times), foaming characteristic qualified (15 milliliters), pH value 6.5, suspensibility 82%, screen analysis 99%, heat storage stability is qualified, active ingredient Prohexadione calcium resolution ratio 0.9%, active ingredient uniconazole P resolution ratio 1.2%.
The preparation (1 to 9) of embodiment 8,40% Prohexadione calcium Uniconazole water dispersible granules
Former medicine and auxiliary agent are selected and proportioning is: former medicine 4.8 mass parts of 85% Prohexadione calcium (pure approximately 4 mass parts), former medicine 38.0 mass parts of 95% uniconazole P (pure approximately 36 mass parts), wetting agent is ethoxylated dodecyl alcohol sodium sulphate 5 mass parts, dispersant is sodium lignin sulfonate 5 mass parts, disintegrant is anhydrous sodium sulfate 20 mass parts, binding agent is carboxymethyl cellulose 3 mass parts, and filler is attapulgite 24.2 mass parts.Concrete preparation process is with embodiment 1.
The assay method of 40% each performance indications of Prohexadione calcium Uniconazole water dispersible granules of embodiment 8 preparations is with embodiment 1.Concrete measurement result is: Prohexadione calcium content 4.03%, uniconazole P content 36.00%, moisture 1.2%, wetability qualified (5 seconds), dispersed (disintegration) qualified (10 times), foaming characteristic qualified (8 milliliters), pH value 6.4, suspensibility 87%, screen analysis 99%, heat storage stability is qualified, active ingredient Prohexadione calcium resolution ratio 1.0%, active ingredient uniconazole P resolution ratio 0.8%.
The preparation (1 to 100) of embodiment 9,50.5% Prohexadione calcium Uniconazole water dispersible granules
Former medicine and auxiliary agent are selected and proportioning is: former medicine 0.6 mass parts of 85% Prohexadione calcium (pure approximately 0.5 mass parts), former medicine 52.8 mass parts of 95% uniconazole P (pure approximately 50 mass parts), wetting agent is lauryl sodium sulfate 3 mass parts, dispersant is naphthalenesulfonate formaldehyde condensation compound 7 mass parts, disintegrant is sodium carboxymethyl starch 10 mass parts, binding agent is starch 5 mass parts, and filler is potter's clay 21.6 mass parts.Concrete preparation process is with embodiment 1.Preparation method and preparation example 1 are basic identical.
The assay method of 51% each performance indications of Prohexadione calcium Uniconazole water dispersible granules of embodiment 9 preparations is with embodiment 1.Concrete measurement result is: Prohexadione calcium content 0.50%, uniconazole P content 50.09%, moisture 0.8%, wetability qualified (5 seconds), dispersed (disintegration) qualified (12 times), foaming characteristic qualified (15 milliliters), pH value 5.9, suspensibility 92%, screen analysis 98%, heat storage stability is qualified, active ingredient Prohexadione calcium resolution ratio 1.3%, active ingredient uniconazole P resolution ratio 0.7%.
The preparation (1 to 24) of embodiment 10,75% Prohexadione calcium Uniconazole water dispersible granules
Former medicine and auxiliary agent are selected and proportioning is: former medicine 3.6 mass parts of 85% Prohexadione calcium (pure approximately 3 mass parts), former medicine 75.9 mass parts of 95% uniconazole P (pure approximately 72 mass parts), wetting agent is fatty alcohol-polyoxyethylene ether 5 mass parts, dispersant is naphthalenesulfonate formaldehyde condensation compound 3 mass parts, disintegrant is calcium chloride 2 mass parts, binding agent is polyvinyl alcohol 2 mass parts, and filler is kaolin 8.5 mass parts.Concrete preparation process is with embodiment 1.
The assay method of 78% each performance indications of Prohexadione calcium Uniconazole water dispersible granules of embodiment 10 preparations is with embodiment 1.Concrete measurement result is: Prohexadione calcium content 3.02%, uniconazole P content 72.08%, moisture 0.6%, wetability qualified (5 seconds), dispersed (disintegration) qualified (8 times), foaming characteristic qualified (10 milliliters), pH value 6.1, suspensibility 86%, screen analysis 99%, heat storage stability is qualified, active ingredient Prohexadione calcium resolution ratio 0.5%, active ingredient uniconazole P resolution ratio 1.7%.
In embodiment 11-16, be all with using after distilled water diluting by composition.
Basic identical described in the preparation method of the Prohexadione calcium contrast medicament water dispersible granules in embodiment 11-16 or uniconazole P contrast medicament water dispersible granules and embodiment 1-10, different is not add uniconazole P or Prohexadione calcium, supplies the active ingredient lacking with filler.
Prohexadione calcium and uniconazole P synergistic effect in embodiment 11, plant growth regulator composition
1, experimental technique
Reagent agent: Prohexadione calcium (85% former medicine); Uniconazole P (95% former medicine).For examination Prohexadione calcium and the equal water of uniconazole P, be configured to 1% suspension mother liquor, add by mass percentage 2.5% farm chemical emulgent 1602 and 1% agriculture breast 500#, add 0.2% xanthans adjusting viscosity.During use, be diluted with distilled water into respectively variable concentrations, use.
Various water dispersible granules compositions are all diluted with distilled water into variable concentrations, use.
Test plant: paddy rice (Oryza sativa L.), kind is for richer.
Method of testing (indoor rice seedling drop method): full seed is after 20% sodium chloride solution is selected, and with saturated liquor natrii hypochloritis's sterilizing 30min, flowing water is cleaned, distilled water immersion abundant imbibition in 24 hours under room temperature, after rinsing well 30 ℃ of vernalization; When most of seed shows money or valuables one carries unintentionally, select the seed of the long 2mm of bud left and right, be sown in the beaker that fills 1% agar, each beaker is sown into 20 grain germination seeds, and plumule is upwards.Then putting into the illumination box of 30 ℃ cultivates 2 days (incubator condition is each 12h round the clock, light intensity 12000Lux; Temperature 25-28 ℃, relative moisture 65%).To first intact leaves top from the imperfect leaf of first, stretch out 2mm left and right (height of seedling 1cm left and right), serial gradient concentration solution with micro syringe drop 1.0 μ L different proportion water dispersible granules compositions between the imperfect blade of first and first intact leaves, each water dispersible granules composition arranges 7 concentration gradients, each concentration arranges 4 containers and repeats, and contrast medicament Prohexadione calcium and each 7 concentration gradients of uniconazole P are set simultaneously; Under above-mentioned condition of culture, cultivate 3 days, measure the length of the second leaf sheath.7 concentration gradients of water dispersible granules composition and contrast medicament are respectively 1,2,4,8,16,32,64mg/L.
Calculate the average length of respectively processing the second leaf sheath, the clear water of take contrast paddy rice the second leaf sheath length is 100%, calculates each and processes the second leaf sheath growth inhibition ratio (%).According to the equation of linear regression of drug dose logarithm-the second leaf sheath growth inhibition ratio probability value, calculate contrast medicament and mixed medicament and suppress paddy rice the second leaf sheath 20% desired concn (EC that grows
20), the synergy computational methods of analogy Mixture Use of Insecticides (Sun Yunpei etc., 1960), calculate plant growth regulator composition co-toxicity coefficient.
2, experimental result
Prohexadione calcium, uniconazole P and Prohexadione calcium: uniconazole P is 9: 1,3: 1,1: 1,1: 3,1: 9 EC mixed with 1: 27
20as table 1. Prohexadione calcium is mixed with uniconazole P different proportion, show certain synergistic effect with co-toxicity coefficient, when mixed at 1: 3 both synergy the most obvious, co-toxicity coefficient is 291.32.
Table 1 Prohexadione calcium, uniconazole P and mixed EC
20and co-toxicity coefficient
The field trial that embodiment 12, plant growth regulator combination water dispersible granule are applied at rice seedling bed
1, test method
Material is paddy rice, and kind is for richer.
By after 10000 times of water-dispersible grain dilution agents, use, be about to 0.5g water dispersible granules and be dissolved in 5kg water.
Seed is 0.1% liquor natrii hypochloritis's sterilization 30 minutes with quality percentage composition, and in 30 ℃ of illumination boxs, vernalization is cultivated, and after seed shows money or valuables one carries unintentionally, sows.Until seedling growth to leaf, carry out foliar spray processing wholeheartedly time, set and state 7 processing: 1. clear water contrast, 2. contrast 10000 times of liquid of medicament 5% Prohexadione calcium water dispersible granules, 3. contrast 10000 times of liquid of medicament 20% Uniconazole water dispersible granules, 4. 10000 times of liquid of embodiment 5 preparation 25% Prohexadione calcium Uniconazole water dispersible granules, 5. contrast 10000 times of liquid of medicament 25% Prohexadione calcium water dispersible granules, 6. contrast 10000 times of liquid of medicament 5% Uniconazole water dispersible granules, 7. 10000 times of liquid of embodiment 6 preparation 30% Prohexadione calcium Uniconazole water dispersible granules, wherein process 2., 3. be and 4. processed group I, process 5., 6. be and 7. processed group II, till being sprayed to blade and having droplets fall.Each is processed and repeats 4 times, 100 square metres of community areas.After 3 week, representative rice shoot 30 strains are got in every community, measure plant height and individual plant tiller number (the results are shown in Table 2).
2, experimental result
As shown in table 2, the Prohexadione calcium of experiment preparation and uniconazole P combination water dispersible granule delay rice seedling growth, increase the individual plant effect of tillering and are better than the one-component application of same dose, show obvious synergistic effect.
The impact of table 2 plant growth regulator combination water dispersible granule on rice seedling growth
Embodiment 13, plant growth regulator combination water dispersible granule regulate paddy growth field trial
1, experimental technique
Material is paddy rice, and kind, for cultivating rice 12, is tested in 850 Farm Rice scientific and technological parks (model field), 2010 Nian Heilongjiang Province and carried out.Composition water dispersible granules (embodiment 6 preparations, containing active ingredient Prohexadione calcium 25% and uniconazole P 5%), per hectare is with 600 grams, and the jointing initial stage adds water 750L/ha wiring solution-forming, and blade face evenly sprays.With Prohexadione calcium 25%, uniconazole P 5%, be contrast, and do blank with clear water respectively.Community area 52.5m
2, repeat for 4 times.During results, investigate plant height, each length of internode and cell production (the results are shown in Table 3).
The statistical method of lodging ratio: the ratio of the 45 ° of shared community of rice plant area areas of stem stalk and vertical plane inclination angle >.
2, experimental result
As can be seen from Table 3, alone Prohexadione calcium of paddy rice jointing initial stage, uniconazole P can to a certain degree reduce Plant Height of Rice, all can shorten base portion 1-3 length of internode, reduce rice lodging proportion; And appliable plant growth regulator composition water dispersible granules is processed significantly reduction plant height 13.05%, shorten basic three length of internode 28.98%, lodging tolerance significantly strengthens.From output, to compare with blank, alone Prohexadione calcium amount of increase in production is limited, and there is certain underproduction phenomenon in alone uniconazole P, and composition water dispersible granules is processed than blank volume increase 5.48%.
The impact of table 3 plant growth regulator composition water dispersible granules on Plant Height of Rice, length of internode and output
Embodiment 14, plant growth regulator combination water dispersible granule regulate wheat growth field trial
1, experimental technique
Material is wheat, and kind is capital winter No. 8.Tested in 2010 and carry out at Shang Zhuan township, Haidian District, Beijing City China Agricultural University Experimental Base.Composition water dispersible granules (embodiment 3 preparations, containing active ingredient Prohexadione calcium 5% and uniconazole P 10%), per hectare is with 225 grams, and the phase of standing up adds water 450L/ha wiring solution-forming, and blade face evenly sprays.With Prohexadione calcium 5%, uniconazole P 10%, be contrast, and do blank with clear water respectively.Community area 30m
2, repeat for 4 times.During results, investigate plant height, each length of internode and cell production (the results are shown in Table 4).
2, experimental result
As can be seen from Table 4, composition water dispersible granules can effectively be controlled wheat stalk base portion 1-3 internode elongation, but does not affect internode under fringe, and plant height all declines than contrast, alone Prohexadione calcium and uniconazole P, and lodging tolerance significantly strengthens.Composition water dispersible granules can significantly improve wheat yield, than blank volume increase 6.99%.
The impact of table 4 plant growth regulator composition water dispersible granules on Plant Height in Wheat, length of internode and output
Embodiment 15, plant growth regulator combination water dispersible granule regulating corn growth field trial
1, experimental technique
Material is corn, and kind is Nongda 3138.Tested in 2010 and carry out at Shang Zhuan township, Haidian District, Beijing City China Agricultural University Experimental Base.Community area 60m
2, wide-narrow row planting, large line space 70cm, little line space 50cm, density is 60000 strains/ha.April 20 sowing, foliage-spray while 6 of Mays 22 launching leaf.Composition water dispersible granules (embodiment 5 preparations, containing active ingredient Prohexadione calcium 5% and uniconazole P 20%) per hectare 225g, the phase of standing up adds water 450L/ha wiring solution-forming, and blade face evenly sprays, with Prohexadione calcium 5%, uniconazole P 20%, be contrast, and do blank with clear water respectively.During results, investigation respectively processes that plant height, fringe position are high, output (the results are shown in Table 5).
2, experimental result
Uniconazole P can reduce corn plant height after processing, and has certain effect of increasing production; Composition water dispersible granules can make corn plant height reduce 17.6cm after processing, the high reduction in fringe position 15.7cm, increases output 11.72%, and lodging situation does not occur.Compared with two contrasts, medicament is alone compares, and composition water dispersible granules shows obvious synergistic effect.
Table 5 plant growth regulator composition water dispersible granules is processed the impact on corn growth
Embodiment 16, plant growth regulator combination water dispersible granule regulate soybeans they grow field trial
1, experimental technique
Material is soybean, and kind is middle yellow No. 13.Tested in 2009 and carry out at Shang Zhuan township, Haidian District, Beijing City China Agricultural University Experimental Base.Community area 30m
2, line-spacing 30cm, spacing in the rows 10cm, May 8, sowing, processed in branching stage foliar spray.Composition water dispersible granules (embodiment 7 preparations, containing active ingredient Prohexadione calcium 30% and uniconazole P 5%) per hectare 450g, add water 450L/ha wiring solution-forming, blade face evenly sprays, with Prohexadione calcium 6%, uniconazole P 4%, be contrast, and do blank with clear water respectively.During results, the average grain yield of plant height and community (the results are shown in Table 6) is respectively processed in investigation.
2, experimental result
After two kinds of alone processing of medicament of Prohexadione calcium and uniconazole P, all can reduce to a certain extent soybean plant height, and improve soybean yields; Composition water dispersible granules can make soybean plant height reduce 5.03cm after processing, increase output 10.97%, and compared with two contrasts, medicament is alone compares, and composition water dispersible granules shows obvious synergistic effect.
Table 6 plant growth regulator composition water dispersible granules is processed the impact on soybeans they grow
Claims (6)
1. the application of a plant growth regulators in improving crop yield;
Described plant growth regulator, its active component is Prohexadione calcium and uniconazole P; The quality proportioning of described Prohexadione calcium and uniconazole P is 1:4.
2. application according to claim 1, is characterized in that: the formulation of described plant growth regulator is water dispersible granules.
3. the application of a plant growth regulators in improving crop yield; Described plant growth regulator, by Prohexadione calcium, uniconazole P, wetting agent, dispersant, disintegrant, binding agent and media assemblage; The mass percent that described Prohexadione calcium accounts for described plant growth regulator is 0.1%-50%; The mass percent that described uniconazole P accounts for described plant growth regulator is 0.1%-72%; The mass percent that described wetting agent accounts for described plant growth regulator is 1%-10%; The mass percent that described dispersant accounts for described plant growth regulator is 1%-10%; The mass percent that described disintegrant accounts for described plant growth regulator is 2%-20%; The mass percent that described binding agent accounts for described plant growth regulator is 1%-10%; The quality proportioning of described Prohexadione calcium and uniconazole P is 1:100 to 10:1.
Described wetting agent is as lower at least one: dioctyl sodium sulfosuccinate, Nekal BX, lauryl sodium sulfate, neopelex, ethoxylated dodecyl alcohol sodium sulphate and fatty alcohol-polyoxyethylene ether;
Described dispersant is as lower at least one: the copolymer of calcium lignosulfonate, sodium lignin sulfonate, acrylic acid and maleic anhydride, naphthalenesulfonate formaldehyde condensation compound and acrylate homopolymer salt;
Described disintegrant is as lower at least one: sodium carboxymethylcellulose, ammonium sulfate, sodium carboxymethyl starch, urea, sodium chloride, anhydrous sodium sulfate and calcium chloride;
Described binding agent is as lower at least one: polyethylene glycol, gelatin, polyvinylpyrrolidone, carboxymethyl cellulose, starch and polyvinyl alcohol;
Described filler is as lower at least one: bentonite, precipitated calcium carbonate, diatomite, white carbon, talcum powder, atlapulgite, kaolin, attapulgite and potter's clay.
4. application according to claim 3, is characterized in that:
The mass percent that described wetting agent accounts for described plant growth regulator is 2%-5%;
The mass percent that described binding agent accounts for described plant growth regulator is 2%-5%.
5. application according to claim 4, is characterized in that:
The weight average molecular weight of polyethylene glycol is 10000; The weight average molecular weight of sodium lignin sulfonate is 5000; The weight average molecular weight of polyvinylpyrrolidone is 5000-700000; The weight average molecular weight 272.38 of ethoxylated dodecyl alcohol sodium sulphate; The weight average molecular weight 575-605 of fatty alcohol-polyoxyethylene ether; The weight average molecular weight of polyvinyl alcohol is 63800-114400; The weight average molecular weight of acrylate homopolymer salt is 15000-30000; The weight average molecular weight of the copolymer of described acrylic acid and maleic anhydride is 15000-30000.
6. according to the application described in any one in claim 1-5, it is characterized in that: described crop is paddy rice, wheat, corn or soybean; The using method of described plant growth regulator, is by described plant growth regulator water wiring solution-forming, at crop growth period, carries out foliar spray.
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| CN102701858B (en) * | 2012-06-15 | 2014-02-05 | 郑州郑氏化工产品有限公司 | Regulator composition for controlling vigorous growth, resisting lodging and increasing yield of rice |
| CN103392575B (en) * | 2013-08-06 | 2015-11-18 | 山东省寿光蔬菜产业集团有限公司 | A kind of Multifunctional seedling culturing matrix |
| CN104222103A (en) * | 2014-09-28 | 2014-12-24 | 郑州郑氏化工产品有限公司 | Compounding conditioning agent for excessive vegetative growth control of lawn |
| BR112018000666B1 (en) | 2015-07-16 | 2022-08-30 | Monsanto Technology Llc | METHODS OF PRODUCTION OF CODOMINANT EBS IN A YOUNG HAPLOID CORN PLANT AND IMPROVEMENT OF THE NUMBER OF DH1 SEEDS HARVESTED FROM A DH0 CORN PLANT |
| CN105347935A (en) * | 2015-11-19 | 2016-02-24 | 京博农化科技股份有限公司 | Crop lodging-resistance regulating composition |
| CN105685026A (en) * | 2016-02-22 | 2016-06-22 | 郑州郑氏化工产品有限公司 | Water-dispersible granule with prohexadione calcium and method for preparing water-dispersible granules |
| HUE046002T2 (en) * | 2017-06-12 | 2020-02-28 | Fine Agrochemicals Ltd | Growth regulator prohexadione calcium and prothioconazole |
| CN107711882B (en) * | 2017-11-27 | 2019-11-05 | 安阳全丰生物科技有限公司 | A kind of rice growth regulator composition containing Prohexadione calcium and nitric acid rare earth |
| CN112704081A (en) * | 2019-10-25 | 2021-04-27 | 盛世生态环境股份有限公司 | Plant growth regulator for promoting growth of under-forest crops and preparation method thereof |
| CN110810180A (en) * | 2019-11-22 | 2020-02-21 | 扬州大学 | Method for regulating rice plant type, promoting photosynthetic production and improving yield |
| CN110959614A (en) * | 2019-12-20 | 2020-04-07 | 浙江世佳科技股份有限公司 | Plant growth regulator and preparation method and application thereof |
| CN112006034A (en) * | 2020-09-07 | 2020-12-01 | 安徽省四达农药化工有限公司 | Plant growth regulator containing prohexadione calcium and uniconazole and application thereof |
| CN112876308B (en) * | 2021-02-02 | 2022-06-21 | 四川省农业科学院经济作物育种栽培研究所 | Radix ophiopogonis quality-improving and efficiency-increasing method with foliar fertilizer replacing paclobutrazol |
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