82 results about "Paclobutrazol" patented technology

The invention provides an anti-premature senility management method for closely-planted double-layer truncated cone macadamia nut trees, and belongs to the technical field of fruit tree cultivation. The premature senility prevention management method comprises layered nutrition supply and flower and fruit protection management. The layered nutrition supply comprises the following steps: deeply applying a calcium magnesium phosphate fertilizer to the lower layer of soil greater than 60cm, and covering a root controller; organic fertilizers and biological agents are applied to 30-60 cm soil of the middle layer; a macroelement, humic acid and seaweed extract water-soluble fertilizer is applied to the 0-30 cm soil of the upper layer; the flower and fruit protection management comprises the steps that ABA and paclobutrazol are sprayed in the flower bud differentiation period; brassinolide and fluid boron are sprayed in the full-bloom stage; spraying forchlorfenuron and amino acid in a young fruit stage; nAA and monopotassium phosphate are sprayed in the fruit swelling period. Layered nutrition supply and flower and fruit protection management are carried out on the densely-planted double-layer truncated cone macadamia nut trees, premature senility of the densely-planted macadamia nut trees is prevented, branch development of the lower layer is promoted, the tree vigor is balanced, and the high-yield level is maintained.

The invention relates to the technical field of microalgae heterotrophic culture and biomass proliferation, in particular to a chlorella pyrenoidosa heterotrophic high-density proliferation method. The specific technical scheme is as follows: the heterotrophic high-density proliferation method of chlorella pyrenoidosa comprises the following steps: pre-culture and heterotrophic propagation of chlorella pyrenoidosa: inoculating a chlorella pyrenoidosa solution into a BG11 culture medium, and culturing for 3-4 days in a constant-temperature shaking table with the temperature of 25 + / -1 DEG C, the rotating speed of 200rpm and the light-dark ratio of 0h: 24h to obtain a primary culture chlorella solution; inoculating the primary culture algae liquid into a pre-sterilized and optimized heterotrophic culture medium, and carrying out expanding culture under the same culture condition for 3-4 days to obtain a secondary expanding culture algae liquid; (2) a heterotrophic high-density culture stage: regularly supplementing a nutrient culture medium containing high-concentration glucose, nitrate and phosphate by adopting an index fed-batch feeding strategy; other conditions are kept consistent during culture; and (3) an in-situ protein accumulation induction stage: when the chlorella pyrenoidosa reaches an exponential growth end stage, adding paclobutrazol into the system, and keeping other conditions consistent while keeping exponential fed-batch culture. According to the method disclosed by the invention, the biomass of the chlorella pyrenoidosa is increased by about 128.6% compared with that of the traditional batch culture, the protein content can reach 49.14%, meanwhile, the configuration of essential amino acids is improved, and the requirements of high-end biomass resource application are met. The method has the advantages of simplicity and convenience in operation and high production efficiency, and is suitable for the fields of high-quality protein extraction and related biomass production.

The invention discloses a water lily plant miniaturization treatment method which comprises the following steps: planting water lily fetal seedlings by using a pot sleeving method, recovering the seedlings with clear water for 15-20 days, applying paclobutrazol once every 6-9 days until new root systems grow out and the root systems and soil are staggered, and applying a 0.08-0.15 mL / L paclobutrazol suspending agent with 25% of effective components for three times in total. According to the method, the leaf area and the flower stem of the water lily can be obviously reduced, the flowering number is not influenced, and the plant growth condition is good. The method is easy to operate and convenient to use, can be widely applied to small-sized cultivation of water lily plants, and lays a foundation for production of small-sized water lily potted flowers suitable for family gardening.

The invention discloses a cultivation method for controlling tips and promoting flower bud differentiation of syzygium samarangense, and belongs to the technical field of tip control cultivation of syzygium samarangense. The method comprises the following steps: slightly shearing 70-80 days before flower forcing in the wax apple production period, applying a phosphorus-potassium-silicon mixed fertilizer in holes on the ground, and applying the fertilizer once every 15 days, totally twice; then a mixed aqueous solution of potassium phosphite and paclobutrazol is sprayed to leaf surfaces and drips water, spraying is conducted once every 15 days, and spraying is conducted 2-3 times in total; after spraying is conducted for 5-7 days, closed girdling is conducted, after 40-45 days, a mixed aqueous solution of auxin and a plant nutrition regulator is used for spraying, spraying is conducted once every 15 days, and spraying is conducted 1-2 times in total. The silicon fertilizer is mixed and added in the fertilizer and water management period to assist in increasing the absorption and utilization rate of the phosphorus-potassium fertilizer; besides, through the synergistic effect of tip control, trunk girdling and a mixed aqueous solution of auxin and a plant nutrition regulator, syzygium samarangense plants are stable, flower bud differentiation is promoted, meanwhile, the method has the characteristics of disease resistance, disease prevention, high flower forcing and flowering rate and large inflorescence amount, and the important effects of annual flowering and fruiting and promotion of syzygium samarangense industry synergy can be achieved; the method has the advantages of simple operation process, high efficiency, stability, few use times and labor cost saving.

The utility model relates to the technical field of paclobutrazol production, and discloses a pretreatment device convenient to clean and maintain for paclobutrazol production, which comprises a support plate, a lifting rotating replacement part and a rotating cleaning part, support legs are fixedly mounted on the outer wall of the bottom of the support plate, and support base plates are fixedly mounted at the bottoms of the support legs; the lifting rotating replacement part is arranged at the top of the supporting plate; and the rotary cleaning part is arranged at the top of the supporting plate. The cleaning fur is in close contact with the barrel wall, dirt is removed through friction, the cleaning stirring blocks stir at the barrel bottom to form vortexes and disturbances, the barrel wall and the barrel bottom can be comprehensively and deeply cleaned through the combination mode, residual materials and dirt are effectively removed, the cleanliness of the pretreatment stirring barrel is guaranteed, and the cleaning efficiency is improved. Through cooperative operation of the electric telescopic rod and the rotating motor, rapid switching and positioning of the stirring device and the cleaning device are achieved, complex manual dismounting and remounting are not needed, and time and labor cost are saved.

This invention relates to the field of soil treatment technology, specifically a method and its application for reducing compound fungicides in soil-plant systems by combining nano-silica and nitrification inhibitors. Nitrification inhibitors are used as a nitrogen management measure, and the application of nanomaterials influences soil abiotic properties and bacterial communities to drive the degradation of paclobutrazol and carbendazim. The application of nitrification inhibitors (DCD) produces multiple effects: significantly reducing carbendazim residues in soil-plant systems, paclobutrazol residues in soil, and NO3 in plants. ‑ -N and promote the content of soluble sugars and proline in plants. DCD reduces the activity of the soil electron transport system and β-glucosidase activity, while the addition of nano-SiO2 can mitigate this negative effect. Nano-SiO2 selectively enhances the performance of DCD in reducing compound fungicide residues in pak choi and reducing paclobutrazol residues, but hinders the degradation of carbendazim in pak choi.

The invention relates to an ionic liquid for capping cotton, an emulsion in water as well as a preparation method and application of the ionic liquid and the emulsion in water, and belongs to the technical field of plant growth regulation. The ionic liquid disclosed by the invention comprises paclobutrazol and salicylic acid, and the molar ratio of the paclobutrazol to the salicylic acid is 1: (1-1.5); the method comprises the following steps: mixing the ionic liquid with an emulsifier, an anti-freezing agent and water, and uniformly mixing by using a high-speed homogenizer to obtain an emulsion in water product for cotton capping. The ionic liquid disclosed by the invention is relatively good in water solubility, has capping and high-temperature-resistant activity, and can be directly processed into an emulsion in water. Stem and leaf treatment is performed in the early flowering stage of cotton, the effective utilization rate is high, capping is stable, and the high-temperature resistance of cotton can be improved. Meanwhile, the ionic liquid and the emulsion in water are simple in preparation process and convenient to apply.

The utility model relates to the technical field of paclobutrazol production, in particular to a mixing device for production of a plant growth regulator paclobutrazol, which comprises a stirring tank, a feeding hopper is fixedly mounted at the upper end of the stirring tank, a base is fixedly mounted at the lower end of the stirring tank, a discharging pipe is fixedly mounted on the lower side of the stirring tank, and a feeding hopper is fixedly mounted at the upper end of the stirring tank. The discharging pipe is located at the center of the lower side of the stirring tank, a first motor is fixedly installed at the upper end of the stirring tank, a stirring assembly is arranged in the stirring tank, and a conveying assembly is arranged at the lower end of the discharging pipe. The first motor of the output shaft drives the rotating shaft and the stirring rod to rotate, the stirring rod swings on the support with the circular shaft as the axis, meanwhile, the rotating shaft rotates to drive the gear and the universal coupling to rotate, and the gear further drives the universal coupling and the stirring rod to rotate at the rear end of the rotating shaft through the gear ring. Therefore, rotary stirring of the rotating shaft and the stirring rod and rotary stirring of the axis of the stirring rod are achieved, and the uniformity and efficiency of material mixing are improved.

The invention belongs to the technical field of rice planting, and discloses a rice lodging-resistant strength method which comprises the following steps: S1, selecting a treatment agent: selecting paclobutrazol as an inhibitor for internode elongation; s2, preparing a pesticide: weighing paclobutrazol and clear water according to the rice planting area, and uniformly mixing to obtain a paclobutrazol solution; wherein the dosage of the paclobutrazol is 225 g / hm < 2 > to 300 g / hm < 2 > according to pure product calculation; the use amount of the clear water is 225kg / hm < 2 > or 30L / hm < 2 >; s3, spraying a paclobutrazol solution: spraying the paclobutrazol solution 3-5 days before the tillering period of the rice and jointing. The problem that rice is prone to lodging under the conditions of partial nitrogen, high yield and poor variety lodging resistance is solved, and the yield and quality of the rice are improved.

The application discloses a mango shoot control and flower promoting PGRs-multifunctional structured molecular additive synergistic composition and application thereof, and belongs to the technical field of mango growth regulation. The composition is composed of five sub-compositions used in stages, each of the sub-compositions containing a plant growth regulator, a nutrient element and a specific structured molecular additive; the structured molecular additive is combined with the plant growth regulator through physical embedding, electrostatic adsorption or hydrophobic interaction. The application also provides an application method of the composition, including two stages of soil shoot control and leaf surface regulation. Through construction of an intelligent delivery system, the application realizes environment-responsive release, slow release and targeted delivery of active ingredients, effectively solves technical bottlenecks of poor stability, low targeting and high residual risk of traditional plant growth regulators, can accurately regulate the growth cycle of mangoes, significantly improves yield and quality, and greatly reduces pesticide residues and environmental load.

The invention relates to a hybridoma cell strain secreting a mepiquat chloride monoclonal antibody and application of the hybridoma cell strain, and belongs to the technical field of immunodetection. The hybridoma cell strain is preserved in China General Microbiological Culture Collection Center (CGMCC) on April 17, 2025, the preservation address is No.3, No.1 Yard, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC No.46517. The monoclonal antibody secreted by the hybridoma cell strain has good sensitivity and specificity to mepiquat chloride, the IC50 value of the mepiquat chloride is 4.981 ng / mL, structural analogues and functional analogues of the mepiquat chloride, such as chlormequat chloride, paclobutrazol and uniconazole, have no cross reaction, the cross reaction rate is smaller than 1%, and the monoclonal antibody secreted by the hybridoma cell strain can be used for preparing the mepiquat chloride monoclonal antibody. Therefore, low-concentration mepiquat chloride can be accurately detected.

The invention relates to the technical field of grape cultivation, in particular to a method for delaying vitis heyneana germination, which comprises the following steps: in the first ten-day period of March, spraying a treating agent on vitis heyneana, and the treating agent comprises the following components: maleic hydrazide, ethephon, paclobutrazol, morning glory extract and tobacco extract. The method is easy to operate, low in cost, green and safe, germination of vitis quinquangularis is delayed by spraying the pesticide, high-incidence time of downy mildew is avoided in the florescence of the vitis quinquangularis, and meanwhile the growth quality of the vitis quinquangularis is effectively improved.

The application provides a method for preventing early decline of densely-planted double-layered circular table-shaped macadamia nut trees, and belongs to the technical field of fruit tree cultivation. The method for preventing early decline comprises hierarchical nutrient supply and flower and fruit protection management. The hierarchical nutrient supply comprises: deep application of calcium, magnesium and phosphorus fertilizer in the lower layer of more than 60cm soil, and covering with a root control device; application of organic fertilizer and biological bacteria agent in the middle layer of 30-60cm soil; and application of a large amount of elements, humic acid and seaweed extract water-soluble fertilizer in the upper layer of 0-30cm soil. The flower and fruit protection management comprises: spraying ABA and paclobutrazol during flower bud differentiation period; spraying brassinolide and fluid boron during full flowering period; spraying forchlorfenuron and amino acid during young fruit period; and spraying NAA and potassium dihydrogen phosphate during fruit swelling period. The application supplies nutrients hierarchically and protects flowers and fruits for densely-planted double-layered circular table-shaped macadamia nut trees, prevents early decline of the densely-planted macadamia nut trees, promotes the development of lower branches, balances tree vigor and maintains high yield.

The invention relates to the technical field of lily genetic breeding, in particular to a stable genetic transformation method for infecting lily scales without depending on a tissue culture technology. According to the method, a stable genetic transformation system without tissue culture of the lily scales is established through an agrobacterium tumefaciens mediated method, and different agrobacterium tumefaciens strains, infection conditions, infection time and the infection efficiency of paclobutrazol (PBZ) on the lily scales are systematically explored. The defect that a genetic transformation system needs to use a sterile tissue culture technology to induce calluses is overcome. By optimizing key parameters of a tissue culture-free genetic transformation system of the lily scales, a reference basis is provided for subsequently establishing an efficient and stable genetic transformation system.

This invention discloses a hapten, an artificial antigen, and their applications for detecting paclobutrazol. The paclobutrazol hapten prepared by this invention retains the characteristic structure of paclobutrazol to the greatest extent possible. The paclobutrazol antibody prepared using the paclobutrazol hapten of this invention exhibits high potency and specificity, with a half-maximum inhibitory concentration (WMC) of 0.31 ng / mL and a linear range of 0.03–19.63 ng / mL. Furthermore, it shows no cross-reactivity with other structural and functional analogs such as uniconazole and hexaconazole. This invention simplifies the synthesis steps of the paclobutrazol hapten, and the method for preparing the paclobutrazol artificial antigen and its antibody is simple and low-cost. It also establishes a more efficient immunoassay method, capable of meeting the requirements for large-scale on-site sample testing and has broad application prospects.

The invention discloses a culture medium for acer elegans tissue culture, and belongs to the technical field of plant tissue culture. The culture medium comprises a double system of a germination culture medium with the pH value of 5.5-5.8 and a rooting culture medium with the pH value of 5.8-6.3. Wherein the germination culture medium takes potassium nitrate, calcium nitrate terahydrate, magnesium chloride hexahydrate and monopotassium phosphate as basic components, an ammonium-free solution system is innovatively adopted, a redox buffer system formed by ascorbic acid and cysteine is combined, and plant growth regulators such as TDZ and gibberellin are added. The rooting culture medium promotes root development through potassium nitrate and calcium nitrate tetrahydrate in a specific ratio in cooperation with IBA and phloroglucinol, and cane sugar is adopted as a carbon source and supplemented with activated carbon. By strictly controlling the molar ratio of Ca to Mg (2-2.5: 1) and the synergistic effect of paclobutrazol and other components, the browning occurrence rate of explants and the occurrence rate of glass seedlings are greatly reduced, and reliable technical support is provided for acer elegans germplasm resource preservation and industrial seedling raising.

This invention discloses a method for improving the aroma of regenerated fragrant rice. Belonging to the field of crop cultivation technology, this method significantly increases the content of the aroma compound 2-acetyl-1-pyrroline (2AP) in regenerated fragrant rice by simultaneously applying paclobutrazol or uniconazole (two plant growth regulators) during the tillering fertilizer application for the first-season fragrant rice, applying urea as a bud-promoting fertilizer before harvesting the first-season fragrant rice, and controlling the harvesting timing and stubble height of the first-season fragrant rice. Simultaneously, it can stabilize or increase the yield of fragrant rice, achieving stable or increased yield while improving the aroma. This invention is beneficial for improving the rice quality of regenerated fragrant rice and promoting its production.

The present application relates to the Malus domestica Borkh cultivation technical field, specifically, it relates to a kind of greenhouse container seedling cultivation method for improving the ornamental of Malus domestica Borkh. Including the following steps, selecting the root control container of air permeability, preparation special cultivation substrate;Strong seedling is planted in root control container, is placed in shady environment and is carried out with slow seedling;Control day and night temperature, illumination and water nutrient;Water and fertilizer integration system is used to irrigation and fertilization;Use physical method of pinching, pull branch, ring cutting, and combine with the foliar spray of paclobutrazol;Through the coupling application of accurately regulated day and night temperature difference and photoperiod management, water and fertilizer integration and synergistic drought stress, and the organic combination of physical shaping and chemical control, the synergistic effect between temperature, illumination, water, nutrient and other factors is generated, so that the beneficial effects of inhibiting overgrowth, promoting branching, efficient inducing flower bud differentiation and shaping compact plant type are realized synchronously on the whole, and the ornamental quality and growth consistency of Malus domestica Borkh container seedling are improved.

This invention discloses a composition for prolonging the flowering period of durian and a method for regulating the flowering period of durian. The composition includes: a first spray agent, consisting of the following components in the indicated weight ratios: 5-20g of cytokinin-like substances; 1-5g of gibberellin-like substances; 10-30g of polyamine-like substances; 5-15g of boron source; 100-300g of energy-regulating components; 1-5g of slow-release carrier and penetration-promoting components; and water to 1000g; and a second spray agent, consisting of the following components in the indicated weight ratios: 20-50g of flowering rhythm-regulating components, which are composed of 5-10g of paclobutrazol, 3-8g of uniconazole, and 0.5-2g of chlorpyrifos; 2-5g of slow-release carrier and penetration-promoting components; and water to 1000g. This invention, through the combined design of the first spray agent (flowering promoter) and the second spray agent (flowering control), transforms the initiation of durian flower buds from a "single trigger" to a "controllable, phased trigger," thereby prolonging the flowering period while maintaining or even improving fruit-setting capacity.

The invention relates to the technical field of malus spectabilis seedling cultivation, in particular to a greenhouse container seedling cultivation method for improving the ornamental value of North American malus spectabilis. Comprising the following steps: selecting an air-permeable root control container, and preparing a special culture medium; the robust seedlings are planted in a root control container, and the container is placed in a shading environment for seedling recovery; controlling day and night temperature, illumination and water nutrients; a water and fertilizer integrated system is adopted for irrigation and fertilization; physical methods of pinching, branch pulling and girdling are applied, and paclobutrazol is sprayed on leaf surfaces; through precise regulation and control day and night temperature difference and photoperiod management, coupling application of water and fertilizer integration and synergistic drought stress and organic combination of physical shaping and chemical regulation and control, a synergistic interaction effect is generated among factors such as temperature, illumination, moisture and nutrients; therefore, the beneficial effects of inhibiting spindling, promoting branching, efficiently inducing flower bud differentiation and shaping compact plant types are synchronously achieved on the whole, and the ornamental quality and growth consistency of the North American malus spectabilis container seedlings are improved.

The utility model belongs to the technical field of sampling detection, and particularly relates to a sampling detection device for paclobutrazol chlorination reaction, which comprises a connecting piece and a sampling needle, a through hole is formed in the middle of the connecting piece; the middle part of the through hole is fixedly connected with a rubber sleeve; the bottom of the connecting piece is rotationally connected with a first cover plate through a torsional spring. The first cover plate is located at the bottom end of the through hole; a lantern ring is mounted in the middle of the sampling needle; a pair of lug plates is fixedly connected to the middle of the lantern ring. A pair of clamping grooves is formed in the middle of the connecting piece; the clamping groove is arranged in an L shape; through the structure, when sampling detection is carried out in the paclobutrazol chlorination reaction, the situation that external impurities enter the reaction kettle to pollute reactants is reduced, meanwhile, the situation that external gas enters the reaction kettle to cause large change of the temperature in the reaction kettle is reduced, and then the influence on the paclobutrazol chlorination reaction is reduced.

The present application relates to a kind of dry-hot valley area early ripening of sugar orange is promoted, quality is increased and efficiency is increased planting method, belongs to sugar orange planting technical field.The method includes: selecting the adult fruit-bearing orchard of sugar orange after 3 years of planting, and the growth is good, and tree vigor is neat;In mid-late September to mid-late November of the year, keep soil humidity 50%-70%, and fruit tree presents day leaf drought curl, night restores normal state;In early October of the year, 30% multi-effect azole suspension concentrate 600-700 times liquid is sprayed;After fruit is picked, in mid-November of the year, and after flower bud differentiation is completed 70%-80%, pruning is carried out;In mid-late November of the year, fertilization is carried out, and is irrigated thoroughly;20% diacetate soluble powder is sprayed twice.By the method of the present application, per mu is increased by about 50%, and the fruit skin is smooth, and the fruit color and shape and size are uniform, and the fruit flesh is fresh and tender, and the solid content is significantly improved, easy to popularize and apply.

The invention discloses a walnut vigorous growth control method, and belongs to the technical field of walnut vigorous growth control, after walnut shoots grow to a certain length, a paclobutrazol solution is sprayed to treat walnut trees, paclobutrazol enters plant bodies to inhibit biosynthesis of gibberellin so as to reduce the gibberellin content, so that the elongation speed of plant cells is slowed down, and the yield of the walnut trees is increased. The vigorous growth situation of the plants is controlled, and effective vigorous growth control of the walnuts is achieved; in addition, a decomposer is prepared and applied to the soil, the decomposer efficiently decomposes paclobutrazol left in the soil, it is prevented that paclobutrazol is left in the soil for a long time, and later growth of walnuts is affected, and good application prospects are achieved.

The application discloses a cultivation method of Sichuan bergamot bonsai, and belongs to the field of plant cultivation. The method comprises the following steps: selecting a Sichuan bergamot plant with a growth time of more than 3 years, being healthy and free of pests and diseases as a mother tree, taking a brown branch with a growth time of more than 1 year as a cutting, and cutting to obtain cutting seedlings; mixing ordinary soil, vermiculite and grass carbon to obtain special soil; pruning the lignified main root and fibrous root of the cutting seedlings, soaking the root part in a rooting agent, and pruning the main stem and branches of the seedlings; after the seedlings are planted in the special soil, compacting the special soil, watering, and keeping warm; applying a mixed solution of paclobutrazol and chlormequat, potassium dihydrogen phosphate, a humic acid solution fertilizer and a nitrogen-phosphorus-potassium solution to the planted seedlings in sequence; pruning according to the fertilization time, and applying fertilizer after pruning. The application solves the problems of the existing Sichuan bergamot, such as high plant height, poor ornamental effect and poor appearance of fruits, can significantly dwarf and control the characteristics of the Sichuan bergamot plant and the oversized fruit type, and effectively improves the fruit setting rate and quality of the Sichuan bergamot bonsai.

The utility model relates to the technical field of production of a plant growth regulator paclobutrazol, and discloses a pressure-adjustable reaction device for producing the plant growth regulator paclobutrazol, which comprises a reaction kettle. By means of a pressure adjusting mechanism, when a pressure detector body detects that the pressure of the reaction kettle is too large, a signal of the pressure detector body is transmitted to a controller body, the controller body drives the cylinder, the cylinder drives a baffle and a sliding rod, the sliding rod drives a piston to stretch out and draw back, and a first exhaust pipe is opened; the opened first exhaust pipe enables compressed air to enter the purification box through the conveying pipe, the compressed air is exhausted from the second exhaust pipe after being purified by the purification plate, when the purification plate is blocked, the purification box is opened, the purification plate is pulled to be slidably pulled away from the sliding groove, cleaning is conducted, and the problems that gas is generated in the mixing reaction process of materials in the reaction kettle, the pressure on the inner side of the reaction kettle is increased, and the reaction kettle is damaged are solved. And the problem that human bodies are harmed due to the fact that the materials cannot be purified after being discharged is solved.

The invention discloses a paclobutrazol powder processing device, and belongs to the technical field of powder packaging, the paclobutrazol powder processing device comprises a packaging machine rack, a feeding assembly is arranged on the back of the packaging machine rack, a feeding hopper is arranged at the upper end of the packaging machine rack, and a former is arranged below the feeding hopper; the bottom of the feeding hopper is detachably connected with a material injection pipe penetrating through the forming device, an outlet of the material injection pipe is detachably connected with a blocking plate, the diameter of the blocking plate is the same as that of the material injection pipe, a penetrating groove is formed in the blocking plate, the diameter of the blocking plate is the same as that of the material injection pipe, paclobutrazol powder diffusing upwards during filling can be directly intercepted, and powder adhesion on the inner wall of a packaging bag is reduced. The through groove can balance air pressure inside and outside the packaging bag, suction force generated by negative pressure when the packaging bag is conveyed downwards is avoided, filled powder is prevented from being secondarily adsorbed to an edge sealing area, powder interference at the edge sealing position is reduced from the source, heat sealing performance is guaranteed, and powder leakage and shelf life shortening are avoided.

The present application relates to the field of Chinese chestnut planting, and in particular, relates to a Chinese chestnut female-promoting and male-reducing growth regulator as well as a preparation method and application thereof. The Chinese chestnut female-promoting and male-reducing growth regulator comprises the following components: paclobutrazol, 6-benzylaminoadenine and a surfactant; wherein the concentration of the paclobutrazol is 20-100 mg / L; the concentration of the 6-benzylaminoadenine is 20-100 mg / L; and the volume concentration of the surfactant is 1%-3%. The Chinese chestnut female-promoting and male-reducing growth regulator is safe and reliable, has obvious effects, is good in stability and easy to operate, can be applied to the production of chestnut farmers, promotes the increase of female flowers and the reduction of male flowers of Chinese chestnut, promotes the differentiation of female flowers of Chinese chestnut, increases the female-male ratio of Chinese chestnut, and obviously increases the yield of a single Chinese chestnut tree.

The invention discloses a tip-controlling and flower-promoting PGRs-multifunctional structured molecular auxiliary synergistic composition for replacing paclobutrazol on mangoes and application of the tip-controlling and flower-promoting PGRs-multifunctional structured molecular auxiliary synergistic composition, and belongs to the technical field of mango growth regulation and control. The composition is composed of five seed compositions used in stages, and each seed composition comprises a plant growth regulator, nutrient elements and a specific structured molecular auxiliary agent. The structured molecular auxiliary agent and the plant growth regulator are combined through physical embedding, electrostatic adsorption or hydrophobic interaction. The invention further provides an application method of the composition. The application method comprises a soil shoot control stage and a leaf surface regulation stage. By constructing an intelligent delivery system, environment-responsive release, slow release and targeted delivery of active components are realized, the technical bottlenecks of poor stability, low targeting property, high residual risk and the like of a traditional plant growth regulator are effectively solved, the growth cycle of mangoes can be accurately regulated and controlled, the yield and the quality are remarkably improved, and meanwhile, the production cost is reduced. The pesticide residue and the environmental load are greatly reduced.

The application discloses application of paclobutrazol as a synergist of insecticides, and belongs to the technical field of agricultural production. The paclobutrazol is mixed with chemical pesticides, so that plant growth can be regulated, the toxicity of the insecticides can be significantly improved, the pesticide effect duration of the insecticides can be prolonged, the control effect of the insecticides is improved, and the paclobutrazol has important values in delaying development of drug resistance and prolonging the life period of pesticide varieties. In addition, the paclobutrazol is suitable for being mixed with various insecticides.

The present application relates to sweet potato planting technical field, especially to a kind of green planting method for reducing the damage of sweet potato narrow margin moth, according to the rule of narrow margin moth damage sweet potato, a set of narrow margin moth prevention and treatment planting strategy for sweet potato land is summarized, mainly in, by strictly controlling the use of paclobutrazol, so that sweet potato dwarf, control tuberous stem overgrowth, reduce the degree of stem and leaf dense, create an environment that is not suitable for narrow margin moth growth, while improving the chlorophyll content of leaf, leaf still can carry out sufficient photosynthesis, also will improve sweet potato yield;When paclobutrazol is applied, a variety of biological pesticides are mixed, and the biological pesticides that can effectively control narrow margin moth are found out to form a leaf environment with paclobutrazol, so as to effectively control the damage of narrow margin moth, the control effect reaches more than 90%, and other underground pests are also treated, the yield-increasing effect is obvious, the commodity nature of sweet potato is improved, and the efficient and cost-saving green planting of sweet potato is realized.