222 results about "Mepiquat chloride" patented technology

The invention relates to a plant growth regulator composition containing maleic hydrazide and the purposes thereof. The composition contains maleic hydrazide (A) and a combination of known plant growth regulators, such as paclobutrazol, uniconazole, cycocel, mepiquat chloride, triapenthenol, daminozide, ethephon, taterpex and thidiazuron, wherein the weight ratio of the (A) to the (B) is 1: 300 to 500:1 and preferable 1:100 to 300:1, the (A) and the (B) can be proportioned with known aids and an excipient to prepare any agriculturally acceptable preparation; and the agriculturally acceptable preparation can be diluted with water or soil into a needed concentration of 1-8000 mg / kg, preferable 50-5000 mg / kg and used for regulating the growth of cultured plants, such as hedge plants, lawns, landscape plants, fruit trees, vegetables, economic crops, food oil crops and forage grass through the treatments of irrigation, flood irrigation, fertilization with water, jetting, spraying, scattering, smearing, injecting, transfusing, dressing seeds, spreading fertilizer, dispersing, and the like. The composition has the advantages of wide range of applications, low cost, good effect and synergy.

The invention discloses a plant growth regulating composition and its application. The composition comprises the following components: A) natural abscisic acid, B) gibberellic acid (GA3, or of GA4 +7), and C) an existing plant growth regulator. The existing plant growth regulator is selected from one or more than two of 6-BA (6-benzylaminopurine), thidiazuron, brassinolide, sodium nitrophenolate, potassium nitrophenolate, chlormequat chloride, triacontanol, naphthlcetic acid and its salt, indolebutyric acid and its salt, indoleacetic acid and its salt, ethephon, diethyl aminoethyl hexanoate, paclobutrazol, uniconazole, fulvic acid, Mepiquat chloride, nitrohumic acid, jasmonic acid and triapenthenol. Specifically, the components A), B) and C) are in a weight ratio of 1:0.001-500:0.001-500. The S-ABA (S-abscisic acid) added in the invention can expand the prevention and treatment objects, reduce or prevent phytotoxicity, reduce dosage, and lower the use cost.

The invention discloses a compound composition used for increasing the crop fertilization rate. The compound composition comprises a first component of phethalanilic acid, a second component selected from one or more of brassinolide, 6-benayl aminopurine, compound sodium nitrophenolate, diethyl aminoethyl hexanoate, prohexadione calcium, grain yellowing agents, forchlorfenuron, triacontanol, chlormequat chloride, mepiquat chloride, paclobutrazol, uniconazole, amino-oligosaccharin, humic acid, amino acid, alginic acid and chitosan oligosaccharide, and a third component selected from one or more of boric fertilizer, calcium fertilizer, nitrogen fertilizer, potash fertilizer, phosphatic fertilizer, iron fertilizer, copper fertilizer, magnesium fertilizer, manganese fertilizer, molybdenum fertilizer and silicon fertilizer. The composition can be prepared into an aqueous solution or a soluble solution or wettable powder or water dispersible granules which are allowed to be used for agriculture. The compatibility of all the components is reasonable, the key risks of the phethalanilic acid are lowered while it is ensured that the crop fertilization rate is effectively increased, the nutrition level and stress-resistant capacity of crops are improved, and the increase of production and income of crops is promoted.

The high-yield cultivation technique of wheat in saline-alkali field includes the following measures: selecting salt-resistant fall wheat species seed, using organic fertilizer as main fertilizer andusing microelement fertilizer for saline-alkali field crops as auxiliary fertilizer, selecting DEkang 961 as cultivatino species, before sowing, in tenth-twentieth of October, adopting wild flooding irrigation method, watering, salt-pressing and making moisture, after 3-5 days ploughing under to great depth and making land preparation, then film-covering and hole sowing with 1-3 days, after reviving in spring and when the first new leaf is grown and second new leaf is only produced spraying 20% mepiquat chloride paclobutrazol microemulsion on foliage.

The present invention relates to a method for cultivating cotton in medium saline and alkaline land, belonging to the field of plant cultivation technology, mainly for solving the problem of planting cotton in saline and alkaline land. Said method is characterized by that it includes the following steps: adopting short-seasonal cotton species whose growth stage is about 115 days, in the midde ten days of fifth month, after the surface temperature is risen again, sowing; adopting sowing in deep furrow, mulching, after emergence of seedlings postponing the time of transplanting seedlings; planting desity is about 6000 plants / mu, non-training, only pruning tip, adopting mepiquat chloride (DPC) to make chemical control of its whole growth process, finally controlling plant height and making it be about 80cm.

The invention belongs to a cotton growth regulator, and particularly relates to a pruning synergist for cotton for inhibiting the apical growth superiority of the cotton, namely picking top shoot in a cotton growth period. The pruning synergist is characterized in that main components of the pruning synergist comprise flumetralin and mepiquat chloride. Compared with the mepiquat chloride or the flumetralin used alone, the pruning synergist for the cotton produces good synergy, achieves good pruning effect, meanwhile avoids physical damage to cotton plants, saves manpower and time, improves the growth of the cotton, enhances the photosynthesis of the cotton, and improves the yield and quality of the cotton.

The invention discloses a chemical topping method of cotton, comprising the following steps of: a, 3-5 days before and after the first bloom period of the cotton, spraying mepiquat chloride to carry out basic chemical control so that the cotton can grow stably without growing vigorously, wherein the dosage of the mepiquat chloride is 4-10g / mu; b, before and after the full bloom period of the cotton, spraying chemical topping agent on leaf surfaces, wherein the spray should be higher than the cotton plants, the dosage of the chemical topping agent is 40-80ml / mu and 15-30kg of water is mixed; and c, 3-15 days after the spraying of the chemical topping agent, spraying the mepiquat chloride to stabilize the chemical control of plant type, wherein the dosage of the plant type is 8-15g / mu, and the topping agent comprises the following components is percentage by weight: 20-30% of mepiquat chloride emulsion, 40-60% of water and 15-25% of flumetralin emulsion. Through the method, the automatic topping of the cotton can be realized, the topping quality can be ensured, the topping uniformity of cotton fields can be improved, the labor efficiency can be improved and the labor intensity can be lightened.

The invention discloses a cotton no-tillage summer direct seeding cultivation method. The method comprises the steps of (1) variety and seed selection, (2) seeding time, (3) chemical weed control, (4) seedling management, (5) chemical regulation, (6) the fertilizing amount and fertilizing method, and (7) ethephon ripening acceleration. In the step of chemical weed control, after planting, preemergence herbicide is evenly sprayed in each 667 m<2>, and weeds are sealed. In the step of seedling management, after cotton seedlings come up out of the ground, a half amount type Bordeaux mixture is sprayed. In the step of chemical regulation, mepiquat chloride is sprayed at the bud stage, at the initial bloom stage and after topping stage respectively, and the dosage and the spraying frequency of the mepiquat chloride are adjusted according to the weather condition, soil fertility, field density and cotton plant growth vigor. In the step of the fertilizing amount and fertilizing method, nitrogen of 12-14 kg is applied in each 667 m<2>, the high dosage is used in cotton which is sowed before May 20th, and the low dosage is used in cotton which is sowed after May 20th. In the step of ethephon ripening acceleration, ethephon is sprayed, and the cotton boll opening rate can be improved by more than 20%. The method is easy to implement, operation is simple and convenient, and the effects of lowering cotton production cost, stabilizing or improving cotton yield, increasing cotton planting benefits and reducing environmental burdens are achieved.

The invention discloses a high-yield cotton cultivation method. The high-yield cotton cultivation method includes the steps: using a constant value mode of 1.5m X 4m and 3m X 4m as spacing in the rows and spacing between rows of fruit trees in jujube-cotton intercropping; before cotton seeding, topdressing and irrigating for the first time on the last twenty days of March, implementing autumn ploughing and winter irrigation, and completing fertilization, land preparation and weed control before autumn ploughing; selecting high-quality seeds, and starting to seed on April 1st and April 5th , wherein seeding depth is 2-3cm, seeding rate is 60-75kg / hm2, 2-3 seeds are sown in each hole, and earthing depth is 1.0-1.5cm; starting final singling when one true leaf appears, intertilling timely, using mepiquat chloride 9 to control the plant height within a range of 65-70cm, and subjecting cotton to topdressing, irrigation, topping and collection; preventing pests such as tetranychus, aphid, thrips and cotton bollworm in jujube-cotton intercropping cropland. By means of the high-yield cotton cultivation method, land utilization rate is fully increased, adverse impact of jujubes on cotton intercropped with the jujubes is lessened, yield of intercropped cotton is maintained and improved, high yield and high efficiency of the cropland can be achieved finally, and consequently income increase is facilitated for farmers.

The invention relates to an agricultural composition containing chitosan oligosaccharide and fipronil, the agricultural composition is characterized by also containing one or a plurality of component from an insecticidal component, a sterilization component, a plant growth regulator and a fertilizer component, the insecticidal component is selected from one or a plurality of component of abamectin, chlorpyrifos, fosthiazate, thiamethoxam, phoxim, spinosad, isazofos, ivermectin, profenofos, thiodicarb and imidacloprid, the sterilization component is selected from one or a plurality of component of ethylicin, azoxystrobin, fludioxonil, hymexazol, difenoconazole and propiconazole, the plant growth regulator is selected from one or a plurality of component of mepiquat chloride, naphthylacetic acid, chlormequat chloride, uniconazole, paclobutrazol and indolebutyric acid, and the fertilizer component is selected from one or a plurality of component of nitrogen, phosphorus, potassium, calcium, magnesium, boron, zinc and amino acids. The agricultural composition can be one of a granule agent, a microcapsule agent, an absorbent product, a water agent, a water emulsion agent, a suspending agent, a water dispersible granule agent, a wettable powder agent and a microemulsion agent, and is used for root irrigation, sprinkling and pouring, furrow application pesticide-clay mixture or hole application, and the agricultural composition is used for the control of plant diseases and insect pests and regulation of plant growth.

The invention discloses a method for simultaneously determining multiple plant growth regulators in exported vegetables. The method comprises the following steps: extraction, purification, concentration, ultrahigh-performance liquid chromatography-triple quadrupole / composite linear ion hydrazine mass spectrometer (UHPLC-QTRAP) determination and the like. The method can simultaneously determine the 17 plant growth regulators, including gibberellin, indolyl-3-butyric acid, p-chlorophenoxyacetic acid, abamectin, diethyl aminoethyl hexanoate, atrazine, simazine, 6-benzyl aminopurine, 2,4-dichlorphenoxyacetic acid, forchlorfenuron, mepiquat chloride, chlormequat chloride, paclobutrazol, uniconazole, abscisic acid, thidiazuron and p-fluorophenoxyacetic acid. The method disclosed by the invention has the advantages of simple steps, short time consumption, high accuracy and high precision.

The invention relates to the field of agricultural technology, in particular to a novel chemical cotton topping method for use in a shine early cotton region. The novel chemical cotton topping method comprises the following steps: from the seeding stage to maturation stage of cotton, spraying mepiquat chloride onto leaf surfaces for performing basic conventional chemical control; when the plant heights are 55-65 centimeters and the fruit branch quantity is 6-8 at the cotton maturation stage, spraying a chemical topping aqueous solution onto the top of cotton plants, wherein the chemical topping aqueous solution comprises the following components in parcentage by weight: 15-20 percent of mepiquat chloride soluble powder, 5-10 percent of Tuyouta cotton topping aqueous solution and 70-80 percent of water, and the using amount of the chemical topping aqueous solution is 40-50ml per mu. Through mechanical spraying and topping, the effects of topping and regulating plant growth are achieved, plant growth is inhibited, the labor force and labor intensity are reduced, the topping efficiency is increased, the topping cost is reduced, the yield is increased, and full-mechanical cotton production can be realized instead of manual topping.

The invention discloses an effervescent tablet of a plant growth regulator composition and a preparation method thereof. The effervescent tablet of the plant growth regulator composition is made of the raw materials including the substances based on the parts by mass: 0.1-30 parts of diethyl aminoethyl hexanoate, 0.1-60 parts of mepiquat chloride, more than 0 part and less than or equal to 40 parts of water-blocking agent, 3-30 parts of acidic effervescence agent, 3-30 parts of alkaline effervescence agent, 1-10 parts of binding agent and 1-20 parts of glidant. The effervescent tablet can be prepared by a direct drying tabletting method or a wet granulation and secondary tabletting method, wherein the direct drying tabletting method can be used for preparing the effervescent tablet by mechanically grinding auxiliary agent, evenly mixing the auxiliary agent and two active components and directly tabletting; and the wet granulation and secondary tabletting method can be used for preparing the effervescent tablet by drying the two active components, grinding the auxiliary agent, preparing acidic and alkaline soft materials by mixing, bonding and pelleting, and finally tabletting. Thewater-blocking agent is introduced to solve the problem of moisture absorption of active ingredient solid preparation of mepiquat chloride; furthermore, the prepared mepiquat chloride composition effervescent tablet of the plant growth regulator diethyl aminoethyl hexanoate is a new formulation product having the characteristics of rapid disintegration, completely dissolving out of the active ingredient and accurate and quantitative field operation.

The invention relates to a plant growth regulating composition containing jasmonic acid and methyl jasmonate. The plant growth regulating composition contains an active component A and an active component B, wherein the active component A is jasmonic acid or methyl jasmonate, and the active component B is any one selected from a group consisting of benzyl aminopurine, forchlorfenuron, ethephon, tetramethyl glutarate, mepiquat chloride and choline chloride. The plant growth regulating composition is mainly used for improving enzyme activity, promoting seed germination, enhancing germination capacity and photosynthetic intensity, increasing the content of chlorophyll, maintaining greenness, preventing ageing, promoting development of roots and effective fertilizer absorption of crops, assisting the inferior part of a crop in good growth, enhancing absorption of water and fertilizer by plants and adjusting the balance of moisture in plants so as to improve drought resistance and cold resistance of plants; and the plant growth regulating composition can improve immunity, disease and insect resistance and crop quality and increase yield and income.

The invention discloses a method for increasing the alfalfa seed yield. The method comprises the steps that soil is prepared and fertilizers are applied from the middle ten days to the last ten days of March and membrane covering, bunch planting and alfalfa seed pelleting are carried out in the middle and last ten days of March; the seedlings of alfalfa emerge in the middle ten days of April, alfalfa enters the squaring stage in the last ten days of May, and 3-4g of mepiquat chloride is sprayed per mu at the squaring stage; boron fertilizers, potassium dihydrogen phosphate and molybdenum fertilizers are sprayed every other ten days from the bud stage to initial flowering, and watering is carried out once at every flowering stage in the middle and last ten days of June; pesticides are sprayed before flowering to control thrips and aphids and alfalfa enters the flowering stage in the first ten days of July; the seeds are harvested when 70-80% of seed pods become brown in the first ten days to the middle ten days of September. The method has the beneficial effects that the used coated seeds are inoculated with rhizobia, so that the application amount of nitrogen fertilizers is reduced, and environmental pollution of the nitrogen fertilizers is alleviated; the production cycle of the alfalfa seeds is shortened from two years to one year, namely, one season of seeds are additionally produced, so that the occupation ratio of the land on which alfalfa is planted in the current year can be reduced, the use ratio of the land is increased, and the seed yield and the incomes of growers are increased.

The invention provides a plant growth regulating composition including amino acid and mepiquat chloride; amino acid is selected from any one or more of aspartic acid, threonine, serine, glutamic acid, glycine, alanine, cystine, valine, methionine, isoleucine, leucine, tyrosine, phenylalanine, lysine, histidine, arginine, tryptophan and proline, and the mass ratio of mepiquat chloride to amino acid is selected to be 1 to (1-3); the composition is applied to vegetables, not only can improve the yield of the vegetables, but also can improve the quality of the vegetables.

The invention discloses a cotton seedling culturing pesticide fertilizer composition. The cotton seedling culturing pesticide fertilizer composition is prepared by mixing mepiquat chloride, indoleacetic acid, azoxystrobin, metalaxyl, 15 to 25 mass percent of grass carbon, borax, zinc sulfate, monopotassium phosphate, magnesium sulfate, monoammonium phosphate and ammonium sulfate; the cotton seedling culturing pesticide fertilizer with the brand new composition integrates multiple functions of fertilizer efficiency, sterilization and disinfection, chemical regulation, rooting promotion and the like, saves labor and time, is low in cost, innocent, high in fertilizer efficiency, and high in utilization rate, and inhibits vain growth at a seedling stage, controls soil-borne disease at the seedling stage, promotes root development, and resists drought and low temperature. The seedling does not wilt, is high in disease resistance and the production of the cotton is increased obviously.

The invention discloses a multifunctional coating farmland fertilizer, which comprises the following raw materials by weight part: 26-30 parts of urea, 58-63 parts of wheat bran, 15-18 parts of potassium sulfate, 56-59 parts of straw powder, 57-60 parts of rapeseed cake, 52-57 parts of bean cake, 10-13 parts of plant ash, 1-2 parts of calcium pantothenate, 1-2 parts of white copperas zinc sulfate, 1-2 parts of carbendazim, 1-2 parts of mepiquat chloride, 6-8 parts of EM inocula, 19-24 parts of monoammonium phosphate, 16-19 parts of potassium nitrate, 7-9 parts of soil amendment and a proper amount of water. The multifunctional coating farmland fertilizer has a reasonable formula, has necessary constant elements for vegetation, carbendazim for promoting the plant growth and carbendazim possessing bactericidal effect are added, plant growth is promoted, and harmful bacterium can be killed simultaneously; the added soil amendment has the effects for increasing efficiency and promoting plant to absorb nutrition; and the urea coating is employed, slow release effect is obvious, fertilizer efficiency is good, and fertility is durable.

The invention relates to the field of cotton planting, in particular to a cultivation method of southern XinJiang film-free cotton. The method comprises the steps of choosing early-maturing upland cotton varieties for use, wherein the cotton varieties mature within 120 days under the film-mulching cultivation condition and mature within 135-140 days under the film-free cultivation condition; conducing fertilization and ploughing for sowing, wherein the planting density is 240,000-255,000 plants.hm<-2>; when cotyledons stretch flat, conducting continuous chemical regulation twice, wherein the usage amount of mepiquat chloride is 1.4-1.6 g.hm<-2> and 0.8-1.2 g.hm<-2> respectively, and the usage amount of mepiquat chloride is 4.3-4.8 g.hm<-2> after topping is conducted; conducting water and fertilizer management and disease pest and weed prevention and control in a growing period. According to the cultivation method of the southern XinJiang film-free cotton, the cotton does not need to be covered with mulching film, and thus white pollution caused by the mulching film is prevented; the specific early-maturing upland cotton varieties are selected and adopted, by adding a proper amount of base fertilizer and with the assistance of chemical regulation and water and fertilizer management, sufficient nutrients are provided for all stages of growth of the cotton, later maturity, yield reduction and quality lowering caused by later sowing are overcome in the cultivated cotton, and thus the yield is steadily increased, and the quality is gradually improved.

The invention discloses a cultivation method of a sweet potato and aims at providing a sweet potato with high starch content and quality. The adopted technical scheme is to cultivate the sweet potatoby applying iron oxide red soil. The cultivation method of the sweet potato comprises the following steps: (1) applying iron oxide red soil; (2) cutting sweet potato vines in a rainy season; and (3) spraying a mepiquat chloride solution before harvesting. The technical scheme adopted by the invention is simply operated. The sweet potato cultivated by the technical scheme has high starch content and quality.

The cultivation method of super early mature cotton includes selecting the cotton variety with genetically limited fruit bearing shoot or zero-type shoot in the 2-4 fruit bearing shoot positions; thrice spraying marketable mepiquat chloride of the amount of 1-1.5 g, 1.5-2 g and 2-3 g each mou in the full bud stage, the initial bloom stage and the full bloom stage separately. Compared with available similar variety, the present invention has growth period as short as 101 days, planting density up to 6000-12000 plants / mou and about 50 % raised cotton yield.

The invention discloses an agent for controlling excessive vegetative growth and strengthening seedlings of peanuts and a preparation method and an application of the agent. By taking silicate, mepiquat chloride and uniconazole as effective components, 1-10% of silicate, 10-50% of mepiquat chloride, 0.1-5% of uniconazole and 1-50% of an assistant and soluble filler are evenly mixed and ground to obtain the agent for controlling excessive vegetative growth and strengthening seedlings of peanuts; and by utilizing the stress resistance of the silicate and the characteristic of coordinated nutrient utilization, the absorption and the utilization of elements such as N, P and K in soil caused by peanut root systems are promoted, the capability of photosynthesis of the peanut is enhanced, the problems of excessive vegetative growth and lodging of aboveground parts are effectively controlled by matching with the mepiquat chloride and the uniconazole for adjusting the development process of the peanut, the seed setting rate and the grain plumpness rate of the peanut are increased, and the problems of soil nutrient deficiencies and excessive vegetative growth and lodging of the peanut in the south region of China are effectively solved. The prepared agent for controlling excessive vegetative growth and strengthening seedlings of peanuts can effectively improve the stress resistance of the peanut, has a good yield-increasing effect, and is simple in production process, simple and convenient in using method, and easy to popularize and apply.

The present invention discloses a multifunctional chemical modulator for peanut plants and an application method thereof. The multifunctional chemical modulator is formed by mixing 5% of mepiquat chloride, 3% of potassium epoxypropionate, 3% of alpha- Hydroxy-2-pyridinemethanesulfonic acid, 5% of KHCO3, 20% kresoxim-methyl, 25% of carbendazim, 5% of methyl jasmonate, 10% of brassinolide, 0.04% of triacontanol, 10% of cyclodextrin, 4% of chitin and 9.96% of ammonium molybdate. The application method comprises diluting the multifunctional chemical modulator 500-800 times and spraying on peanut leaf surfaces at a standard of 80g / mu during the blooming and peg formation period, the early pod formation period, and the pod maturation period of peanut plants. According to the invention, beneficial effects of effectively improved the peanut yield per mu, an average leaf area index and daily increment of dry matter accumulation.

The invention discloses a winter wheat recommended fertilization method and relates to the technical field of crop fertilization. The method includes the steps that after summer crops are harvested, soil is deeply ploughed or deeply scarified, chicken manure, cow dung and human feces are mashed and mixed to be uniform, the mixture is scattered to the earth surface, and the soil is subjected to rotary tillage and soil preparation; winter wheat seeds are dressed with bactericide or / and insecticide; 3-5 days after rotary tillage and soil preparation, the soil is irrigated before sowing is carried out; 2-3 days after irrigation before sowing is carried out, the soil is subjected to sowing, fertilization and rotary tillage integrated operation; on the last ten days of December, the soil is subjected to warming irrigation; 2-3 days after warming irrigation, straw smashed segments are laid on the earth surface; at the elongation stage of winter wheat, the soil is topdressed, and mepiquat chloride, gibberellins and plant cell cytokinin are sprayed. According to the method, the earth temperature is increased through winter irrigation and laying of the straw smashed segments, water and fertilizer are retained, it is avoided that the wheat is subjected to frost bites and frost damage, so that the normal growth period of the wheat is affected, and the yield of the wheat is stably increased.

A suspended dry coating agent of seeds for preventing and eliminating pests and diseases and providing high fertility is proportionally prepared from fipronil, carbendazim, mepiquat chloride, lignin sulfonate, carboxymethyl cellulose sodium, bentone, and the trace elements contained substance chosen from boric acid, ammonium molybdate, zinc sulfate, manganese sulfate, and copper sulfate.

The invention discloses a method for cultivating sapodilla dolls, which is a new plant variety. A panicled fameflower root which belongs to a portulacaceous fameflower annual or perennial herbaceous plant is taken as a male parent, and is hybridized with a sapodilla which belongs to a perennial solanaceae herbaceous plant and is taken as a female parent; a hybrid progeny seedling is taken as a scion, and is grafted on calabash which belongs to a cucurbitaceous plant and is taken as a rootstock; and a fruit borne on a grafted branch after grafting is stippled by use of gibberellin and mepiquat chloride solution, so as to generate a fruit exactly like a doll, namely a sapodilla doll. The new plant variety cultivated by the method has the advantages of developed root system, thick leaves, deep green color, vigorous growth, strong disease resistance, high yield, rich fruit nutrition, beautiful appearance and processing convenience.

The invention relates to a pesticide composition containing antibacterial peptide. The pesticide composition comprises the active components of an active component A and an active component B, The active component A is antibacterial peptide, and the active component B is selected from any following compound: trinexapac-ethyl, mepiquat chloride, ethephon, paclobutrazol, brassinolide, diethyl aminoethyl hexanoate, gibberellic acid, heteroauxin, amino-oligosaccharin, bacillus subtilis, paclobutrazol, uniconazole, tetramethyl glutaric aciduria, triacontanol, compound sodium nitrophenolate, compound potassium nitrophenolate, S-ABA, choline chloride, chlormequat, forchlorfenuron, naphthylacetic acid, and benayl aminopurine, which have sterilization effect on crops, so that the pesticide composition enlarges bactericidal spectrum, enhances enzyme activity, promotes seed germination, enhances photosynthetic intensity, increases chlorophyll content, keeps green and antioxidant, promotes root system development, and improves absorption of a plant to water and the fertilizer, so that the drought resistance and the cold resistance of the plant are improved; and the pesticide composition has the functions of increasing immunity, enhancing disease and insect resistance, improving crop quality, and increasing yield and income.

The invention discloses a method for spraying mepiquat-chloride to a cotton field at low altitude by an aviation plant protection unmanned aerial vehicle. Under specific weather conditions and withina preset time, the mepiquat-chloride serving as a plant growth regulator is sprayed to cotton by the unmanned aerial vehicle in aviation plant protection. In the spraying process, the flight height ofthe aviation plant protection unmanned aerial vehicle is 1.5 meters above the tops of cotton plants, flight speed is 5 meters per second, spraying width is 4 meters, spraying volume is 1 liter per mu, and the dosage of the mepiquat-chloride is 10g per mu. The method for spraying the mepiquat-chloride to the cotton field at low altitude by the aviation plant protection unmanned aerial vehicle caneffectively improve the action effect of the mepiquat-chloride and has the advantages that spraying efficiency and operation efficiency are high, labor, time and water are saved, accordingly, cost isreduced and the like.

The invention provides a plant growth regulator and a preparation method and application thereof as well as a prevention and control method for tree obstacles of a power grid line gallery, and relatesto the technical field of plant growth regulators. The plant growth regulator is prepared by compounding uniconazole, paclobutrazol, chlormequat, maleic hydrazide, choline chloride, chitosan, ethephon, mepiquat chloride, 6-benzylaminopurine, brassinolide and diethylaminoethyl hexanoate, so that the aims of changing a high-coarse growth conversion relation of plants in various angles, acceleratingthe ripening and ageing of the plants and comprehensively realizing regulation and control of the plants are realized. According to the prevention and control method for the tree obstacles of the power grid line gallery, the plant growth regulator is applied and the growth height of gallery trees is reduced so that the aim of preventing and controlling the tree obstacles of the power grid line gallery is realized. According to the method provided by the invention, the problem in the prior art that a method for effectively controlling the growth of the trees on an overhead power transmission line gallery is lacked is alleviated, and the aims that an ecological landscape and benefits of forest farmers are not damaged and tree obstacle threats are not caused are realized.