44results about How to "Small branch" patented technology

The invention relates to a novel polyethylene powder coating, and especially relates to the preparation of the polyethylene powder coating compositely modified by carbon nanofibers and epoxy resin. The polyethylene powder coating of the invention comprises 100 parts of linear low density polyethylene (PE), 5-10 parts of carbon nanofibers, 10-15 parts of epoxy resin, 5-20 parts of micron-grade inorganic fillers, 1-3 parts of silane coupling agents, and 1-5 parts of powder additives. The preparation employs a parallel-exhausting twin-screw extruder, a high-speed mixer, and a high-speed pulverizer. The obtained product has high mechanical strength, good impact resistance, and excellent adhesion to metal substrates.

The invention relates to the field of machinery, in particular to a rhubarb planting method. The rhubarb planting method comprises the following steps: tidying the land; breeding; transplanting: transplanting, to be specific, transplanting seedlings with buds in March to April in the next year after the seedlings are unearthed, digging holes according to a line spacing of 70 cm and a row spacing of 50 cm, and keeping the holes 30 cm deep, and growing one of the seedlings (or the buds) in each of the holes; field management, to be specific, ridging the rootstocks as the rootstocks are enlarged to promote growth of the rootstocks and facilitate drainage and freezing resistance; except seeds reserved for planting, removing flowers and blossoms as soon as possible to facilitate development of the rootstocks; meanwhile, preventing diseases and insect attacks; harvesting, processing and storing: in the third or fourth year after transplanting of the rhubarb, when the stem leaves on the ground are withered, harvesting the rhubarb as the best time, firstly cutting off the aboveground part, and then taking out the rootstocks; peeling off the roots and skins, naturally drying in the shade or conducting smoke seasoning with fire, conducting the smoke seasoning repeatedly for multiple times for accelerating drying; after drying and processing, storing the rhubarb in a dry and cold place.

The invention discloses a preparation method of a spinnable polycarbosilane precursor material. The preparation method includes the steps: placing polydimethyl silane into a pyrolysis kettle, openinga vacuum valve of the pyrolysis kettle, turning on a vacuum pump, closing the vacuum valve of the pyrolysis kettle when the pyrolysis kettle is vacuumized to be -0.08 to -0.09Mpa, opening a nitrogen valve of the pyrolysis kettle, leading in nitrogen, enabling the internal pressure of the pyrolysis kettle to be 0.04Mpa and maintaining the pressure for 20-24 hours; vacuumizing the pyrolysis kettle to be lower than -0.09Mpa, turning on a stirring device and a heating device of the pyrolysis kettle, heating the inside of the pyrolysis kettle to reach the temperature of 200 DEG C, keeping the temperature for 1-3 hours, continuously stirring the polydimethyl silane in the pyrolysis kettle at high temperature and low pressure to remove residual solvents of the polydimethyl silane, increasing thetemperature for pyrolysis, transferring the polydimethyl silane to a synthesis kettle and performing synthesis at the high temperature and high pressure to obtain polycarbosilane. A molecular chain inthe prepared polycarbosilane is good in linearity, branches on the molecular chain are fewer and less crossed, the polycarbosilane is moderate in viscosity and good in spinnability, the molecular weight of the prepared polycarbosilane is moderately 800-1300, and the polycarbosilane is the most spinnable.

The invention discloses a tissue culture and rapid propagation method of E. urophylla*E. Grandis DH32-43. The method is implemented through the steps of explant establishment, explant disinfection, primary culture, subculture, rooting culture, seedling-hardening, transplantation and the like. According to the invention, special culture medium components are selected for the primary culture, subculture and rooting culture, the E. urophylla*E. Grandis is fast in growth and high in survival rate after being transplanted by virtue of a reasonable seedling-hardening measure, and the purposes of high propagation coefficient and excellent propagation effect are achieved; besides, the method is low in production cost, and the genetic characteristics of obtained tissue culture seedlings are consistent, therefore, the method is an effective way for tissue culture and rapid propagation of eucalyptuses, and has wide application range.

The invention belongs to the technical field of corn hybridization, and discloses a breeding method of corn hybrids. The method is mainly technically characterized by comprising the following steps: firstly, establishing a heterosis group and a heterosis mode, hybridizing a public selfing line Q319 and a local germplasm 81162, adopting a pedigree method, conducting selfing for six generations, selecting a superior line, cultivating a selfing line Heng H1027 which belongs to a PB group*Reid group, dividing the selfing line Heng H1027 into a group A, introducing a selfing line PH4CV variant to backcross with PH4CV, then conducting selfing for five generations to breed a selfing line Heng HC705, and dividing a pedigree of the heterosis group into an Iodent group which belongs to a male parent group B; performing test-matching and grouping on a newly introduced germplasm material, then performing line selection, then carrying out circulating line selection, enabling F1 generation inheritable characters to be stable, carrying out selfing or improved line backcrossing on single plants, and realizing segregation of F2 or BC1 generation characters; and planting ear rows in the F3 generation, performing phenotype selection and inter-group test-matching rotation selection on the segregated ear rows and individuals, and finally obtaining the new corn hybrid variety. The method has the advantages of early maturity, short stems, lodging resistance and suitability for mechanical grain harvesting.

The invention discloses a breeding method for clonal DH33-27 variety of Eucalyptus urophylla*E.grandis. The method comprises the following steps: firstly, taking Eucalyptus urophylla U16 serving as a female parent and Eucalyptus grandis G33 serving as a male parent as parents; performing emasculation and bagging, pollen collection, hand pollination, cap bag removal, seed collecting and sowing and breeding to realize consistent character expression and stable inheritance. The clonal DH33-27 variety of Eucalyptus urophylla*E.grandis which is not subjected to segregation of character has the variety characteristics that the leaves are lanceolate, terminal buds are green, veins are obvious, seedling stems are slightly red, tree trunks in the early stage is brownish red, the upper parts of the tree trunks are cyan, and the tree trunks are completely peeled in the later period; the clonal DH33-27 variety of Eucalyptus urophylla*E.grandis has the characteristics of high general performance, straight stem shapes, order forest form, small branches, high annual average amount of growing stock and obvious economic benefit, is free of plant diseases and insect pests and suitable for large-scale cultivation promotion.

The invention provides a cultivation method of low-temperature pepper seedlings, and belongs to the technical field of seedling-growing production of overwintering peppers. The method comprises the following steps of A, selection of good varieties; B, seed soaking by an agent, wherein firstly, seeds are soaked by warm water at 45-50 DEG C, then soaked in clear water at normal temperature for 1.5-2.5 h, and then put in a 1% trisodium phosphate solution; C, temperature-varying germination accelerating; D, sowing in a seedling growing tray; E, seedbed management, wherein when it is sunny in the end of November and the pepper seedlings grow robustly, the seedling growing plug is lifted a little bit, so that roots are broken, 3-5 sunny days after root breaking should be ensured so that seedlingrecovery can be conducted, transplanting and field planting are conducted in a greenhouse when it is sunny after the Beginning of Spring, and transplanting and field planting are conducted in an openfield after a gale and around Fresh Green. According to the cultivation method, heeling in temporary planting is not needed, diseases can be reduced, the cultivated seedlings have a large germinationpotential and grow robustly, flower bud differentiation is early, and the seedlings cultivated by open-field transplanting and greenhouse field planting are put into the market 25 days and 50 days separately earlier than common peppers do.

The invention discloses a tissue culture and rapid propagation method for eucalyptus urophydis DH32-26 varieties. The tissue culture and rapid propagation method is realized through the steps of explant establishing, explant disinfection, primary culture, subculture, rooting culture, domestication, transplanting and the like; a special culture medium is selected for primary culture, subculture and rooting culture, and reasonable domestication measures are adopted, so that the transplanted eucalyptus urophydis is rapid in growth and high in survival rate, and the aims of high propagation coefficient and good propagation effect are achieved. Meanwhile, the method disclosed by the invention is low in production cost, is an effective path for tissue culture and rapid propagation of a eucalyptus, and is wide in application range; and the genetic characters of the obtained tissue culture seedlings are consistent.

The invention discloses a xanthoceras sorbifolium Bunge seed low-variable temperature lamination membrane covering direct sewn seedling growing method which comprises the following steps: collecting fruits, sorting and grading seeds, carrying out after-aging treatment on the seeds, preparing lamination sand, preparing lamination vermiculite, preparing lamination perlite, preparing a lamination medium, sterilizing the seeds, carrying out low-variable temperature lamination and membrane covering, and the like. The method has the beneficial effects of being rapid in seed germination, high in seedling rate, rapid in seedling growth speed, low in seedling growing cost, high in seedling rate of seeds, simple and convenient in management, convenient in in-situ material obtaining, high in transplanting survival rate, good in seedling commodity property, and the like, and is applicable to large-scale seedling growing in nursery lands.

The invention discloses a cultivation method for bringing tea trees into production in advance. The cultivation method includes steps of (1), clearing lands, applying fertilizers, carrying out watering and covering the lands with black mulching films; (2), dipping the roots of tea seedlings in root liquid for 10-15 s before the tea seedlings are transplanted; (3), transplanting the tea seedlings, to be more specific, digging holes in the mulching films and planting the tea seedlings in double-row and double-plant modes; (4), carrying out watering and soil covering, to be more specific, sufficiently watering the tea seedlings with root colonizing water, then carrying out soil covering and sealing on broken openings of the mulching films but necessarily exposing soil in the ranges of 10-12 cm around the root stock of the tea seedlings; (5), applying fertilizers, to be more specific, perforating the mulching films to apply the fertilizers, or furrowing the centers of small tea rows to apply the fertilizers and applying the compound fertilizers with the pH (potential of hydrogen) values of 6-7; (6), secondarily pruning the tea seedlings and carrying out secondary topping on the tea seedlings. The root liquid comprises 800-1000 times dilution of rooting agents, 1200-1500 times dilution of bactericides and 0.4-0.6 kg / L of clay. The cultivation method has the advantages that the survival rate of the tea seedlings can be increased, and the tea trees can be brought into production in advance by a year; more than a half of weeding cost can be reduced, the quality of the tea trees can be enhanced, the yield of the tea trees can be increased, and economic value of the tea trees can be increased.

The invention discloses a low-temperature stacking, germination-accelerating and seedling-growing method for Prunus mongolica Maxim seeds. The method comprises the following steps: seed collection, cleaning and careful selection of the seeds, after-ripening treatment of the seeds, and stacking and germination-accelerating treatment. The seeds treated by the method have the advantages of fast seedling emergence speed and high emergence rate; and the method has the advantages of simplicity, good seedling quality, low cost of seedling growth, high outplanting rate of the seedlings, and effectiveness in control of nursery field weeds.

The invention discloses an early-maturing efficient planting method for intercropping of greenhouse broad beans and garlic and belongs to the technical field of crop planting. The method comprises the following steps of: intercropping greenhouse broad beans and garlic, ridging and transplanting vernalized broad bean seedlings from the bottom of July to the beginning of October, and sowing garlic in the corresponding period; harvesting the broad bean green pods from the beginning of December to the Spring Festival, harvesting garlic sprouts from the first ten-day period of October to the Spring Festival, and retaining garlic without harvesting the garlic sprouts to the coming year to harvest young garlic shoots and the heads of garlic, wherein 1000-1250kg of garlic sprouts are produced per mu, so that 3000-4500 yuan can be increased per mu; about 1500-2000kg of broad bean green pots are produced per mu, so that the output value per mu of broad beans is about 10000 yuan. The planting method is incomplex in technology and stable in benefit, and the economical benefit is favorably increased and the income of farmers is favorably increased; the utilization efficiency and yield efficiency of land are favorably increased; sterilization and insect dispelling are facilitated, so that plant diseases and insect pests are prevented or reduced, and the cost is lowered and the effect is increased; by reducing nitrogen competition of soil, input of a nitrogen fertilizer is reduced, so that the cost is lowered.

The invention discloses a seed selection method of E. urophylla*E. Grandis clone DH32-13. The method comprises the following steps: firstly, a female parent Eucalyptus urophylla U16 and a male parent Eucalyptus grandis G46 are taken as parents, and subjected to castration, bagging, pollen collection, artificial pollination, bag removing, seed collecting, seeding and seed selection to obtain the E. urophylla*E. Grandis clone DH32-13 with consistent characters, stable inheritance and not subjected to character segregation. The E. urophylla*E. Grandis clone DH32-13 has the characteristics of straight stem form, neat forest phase, small branches, no plant diseases and insect pests, large annual average stand volume, remarkable economic benefits, and capability of being suitable for being planted in large-area regions.

The invention discloses a tissue culture and rapid propagation method for eucalyptus urophydis DH32-29 varieties. The tissue culture and rapid propagation method is realized through the steps of explant establishing, explant disinfection, primary culture, subculture, rooting culture, acclimatization, transplanting and the like; a special culture medium is selected for primary culture, subculture and rooting culture, and reasonable acclimatization measures are adopted, so that the transplanted eucalyptus urophydis is rapid in growth and high in survival rate, and the aims of high propagation coefficient and good propagation effect are achieved. Meanwhile, the method disclosed by the invention is low in production cost, is an effective path for tissue culture and rapid propagation of a eucalyptus and is wide in application range; and the genetic characters of the obtained tissue culture seedlings are consistent.

The invention discloses a dormancy breaking method for nitraria tangutorum. The method comprises following steps: collecting fruits of the nitraria tangutorum; taking seeds from the collected fruits;selecting the seeds; treating the seeds; cleaning the treated seeds; performing low-temperature deposition treatment on the cleaned seeds. The method is simple and convenient to operate, and has gooddormancy breaking effect, high one-time germination rate, high field emergence speed and wide applicable range.

The invention discloses a chemical control method for improving the lodging-resistance capability and yield of flax through uniconazole. The method comprises the step of growth vigor assessment, wherein the growth vigor of the flax in the rapid growing period is comprehensively assessed; the step of pesticide preparation, wherein the uniconazole is dissolved through anhydrous alcohol, and then concentration water adding preparation is carried out; the step of application period selection in the budding period of the flax, wherein when the flax plant is in the budding period, the optimal application period is selected; the step of pesticide applying, in the sunny windless morning or afternoon, a sprayer is used for evenly spraying the uniconazole. Compared with an lodging-resistance breeding method, the method has the advantages that the height of the flax can be quickly reduced, branches of the flax can be shortened, the group structure is improved, the stem diameter and the root diameter of the flax are increased, the lodging-resistance capability is enhanced, and the yield increasing effect is remarkable; after 100 mg / kg uniconazole is applied in the squaring period, the effects of shortening the flax plant and increasing the stem diameter, the fruiting number of the single plant, the thousand seed weight and the yield are remarkable, and the yield of the flax is increased by 27.83% compared with that of a comparison set.

The invention relates to the technical field of connecting joints, in particular to a reinforced concrete belt steel ring plate connecting joint used for a precast beam column and a connecting method.The connecting joint comprises a precast column and a plurality of precast beams which are arranged around the precast column, wherein the center line on which the circle center of a circle enclosedby the precast beams is located is coaxial with the center axis of the precast column; a reinforcing steel bar, positioned at the outer layer, in the precast column extends in a direction away from the precast column, and a reinforcing steel plate is arranged on the extended reinforcing steel bar; connecting reinforcing steel bars which are arranged towards the reinforcing steel plate are arrangedon the precast beam; the connecting reinforcing steel bars are fixedly connected to the reinforcing steel plate; and concrete layers are poured between the precast column and the precast beams. In aprocess of the connecting method, the novel connecting joint structure is adopted. A series of problems generated by connecting reinforcing steel stacking and placing in the prior art are solved, connection of the reinforced ring beam joint is realized through a brand-new connecting joint structure and a brand-new connecting method, and a construction process is simplified; and moreover, the connected ring beam joint is higher in compactness, is higher in stress strength and is better in anti-seismic property.

The invention provides an epsilon phase modification agent in a zinc-copper alloy. The modification agent is bismuth with the purity of 99.10wt.%-99.99wt.% or a zinc-bismuth intermediate alloy with bismuth content of 10%-30% by mass. A small amount of the modification agent is added and a good modification treatment effect can be obtained, a method for modification treatment is provided, only thetemperature needs to be raised and the modification agent is added in the treatment process, the growth of the epsilon phase can be restrained, the number of crystal nucleus of the epsilon phase is increased, the grain size of the epsilon phase is reduced, branches of the epsilon phase are reduced, and the epsilon phase is more evenly distributed in an alloy matrix.

The invention discloses a tissue culture and rapid propagation method of Eucalyptus urophylla DH32-26 variety, which is realized through the steps of explant establishment, explant disinfection, primary culture, subculture, rooting culture, seedling hardening and transplanting. , A special medium composition was selected for primary culture, subculture and rooting culture. Reasonable seedling hardening measures made Eucalyptus macrophylla grow fast after transplanting, with a high survival rate, and achieved the purpose of high reproduction coefficient and good reproduction effect. Simultaneously, the production cost of the method of the invention is low, and the obtained tissue culture seedlings have consistent genetic traits, which is an effective way for tissue culture and rapid propagation of eucalyptus, and has a wide application range.

The invention relates to a pumping well fault diagnosis expert system based on a generation type rule. The pumping well fault diagnosis expert system comprises a man-machine interface, a comprehensivedatabase and a generation type rule library, wherein the man-machine interface is used for the information interaction between a user and all modules of a fault diagnosis system, the user inputs fault information through the man-machine interface, all diagnosis results are displayed on the man-machine interface, the comprehensive database is connected with an inference machine and an explanationmachine and used for storing expression information in the fault diagnosis process and has an initial state, a middle conclusion and a final conclusion, and the generation type rule library is connected with the inference machine and the explanation machine and has a diagnosis rule and a solution in the field of problems to be solved. The pumping well fault diagnosis expert system is suitable fordiagnosis of critical working conditions; compared with other existing popular methods, the expert concept is more expressed, the pumping well fault diagnosis expert system can be better oriented to operation layer users with no professional knowledge background at all, the system is a non-black-box model in the fault diagnosis process and is more clear and easier to understand, and some unnecessary production problems caused when the user does not understand the mechanical operation cannot happen.

The invention discloses a crossbreeding method for low-stem maize. The maize with plant height which is 1.5m or lower, small tassel, few branches, long spike and long grain is selected as a female provenance, and a maize with plant height 2m or lower, large tassel, sufficient pollen, long spike and long grain is selected as a male provenance, and therefore, a maize plant obtained by hybridizationis short, is suitable for high-density plantation and has the characteristics of high maize yield, stable yield, high disease resistance, resistance to lodging and high stress resistance.

The invention discloses a planting method of high-yield bayberry, which is characterized by including the following steps: orchard selection and arrangement, bayberry seedling pretreatment, hole digging and planting, rational topdressing of fertilizer, prevention and control in winter, and pest and disease control. A unique Chinese medicine liquid is prepared to replace the traditional pesticides.The Chinese medicine liquid has the advantages of good pest and disease control effect, no residue and difficult development of resistance, and well guarantees the quality of bayberry. The use effects obtained in five consecutive years show that the comprehensive average morbidity of bayberry treated with the Chinese medicine liquid is reduced by 20-30% compared with traditional pesticides. An organic fertilizer with a unique formula is used, which can improve the permeability, water retention property and fertilizer retention capacity of soil and prevent soil diseases and pests. The organicfertilizer integrates the advantages of yield increase, high efficiency, long-term effect, soil improvement and soil-borne disease inhibition, costs low, has no residue or pollution, and improves thequality of bayberry.

The invention belongs to the field of gum-eucommia-ulmoides-forest ultra-short-period directive cultivation methods, and discloses a gum-eucommia-ulmoides-forest ultra-short-period directive cultivation method. The gum-eucommia-ulmoides-forest ultra-short-period directive cultivation method includes the steps of afforestation land selecting, afforestation technology implementing, tending managing,disease-pest controlling, harvesting and yielding, wherein the afforestation technology includes soil preparation, base fertilizer applying, seedling selecting, density controlling and seedling planting; tending managing includes irrigating and watering, formula fertilizing, hormone foliage spraying, soil and fertilizer managing, tillage and weeding and shaping and pruning. According to the gum-eucommia-ulmoides-forest ultra-short-period directive cultivation method, comfortable and good soil environment space can be provided, the life function of roots is improved, extending of the roots tothe depth and the breadth is increased, robust growth is promoted accordingly, and the method can be of positive and actual significance in increasing of the eucommia-ulmoides unit leaf yield and gumyield.

The invention discloses a seed selection method of E. urophylla*E. Grandis clone DH30-1. The method comprises the following steps: firstly, a female parent Eucalyptus urophylla U16 and a male parent Eucalyptus grandis G22 are taken as parents, and subjected to castration, bagging, pollen collection, artificial pollination, bag removing, seed collecting, seeding and seed selection to obtain the E. urophylla*E. Grandis clone DH30-1 with consistent characters, stable inheritance and not subjected to character segregation. The E. urophylla*E. Grandis clone DH30-1 has the characteristics of fast growth, high yield, short rotation (industrial fiber material is adopted), straight stem form, small branches, neat forest phase, good material property, straight texture, good barrenness resistance, and capability of being suitable for being planted in large-area regions.

The invention provides a method for modification treatment on zinc-copper alloy by antimony elements. Modifier is antimony with the purify of 90.20-99.99 wt.% or zinc-antimony intermediate alloy withthe antimony-containing mass percent of 10-20%; and the modifier is added in the alloy smelting process, so that the growth of an epsilon phase can be inhibited, the number of epsilon-phase crystal nucleus is increased, the grain size of the epsilon-phase crystal nucleus is reduced, the branches are reduced, and the distribution of the particles in the alloy matrix tends to be more uniform. Meanwhile, the modification processing method is simple in process and convenient to operate.

The invention provides a plantation method for increasing yield of kiwi fruits and relates to the technical field of fruit tree cultivation. The plantation method comprises a plot processing stage, a sowing stage and a field management stage. According to the invention, organic fertilizers and chemical fertilizers are combined and used as fertilizers; high yield and high quality of plants can be achieved; soil can be protected; the method is characterized by natural, healthy, green and safe effects, avoidance of toxic and side effects, etc.; through rational cooperation of fertilizers, fertilization modes and other plantation methods, planted kiwi fruits have a high survival rate and high growth quality; and in addition, fruit yield of kiwi fruits is increased through rational fertilization.

The invention provides a method for increasing the parasitic yield of Phellodendron sinii Y.C Wu, and relates to the technical field of planting. The method for increasing the parasitic yield of the Phellodendron sinii Y.C Wu comprises the following steps: (1) cultivating hosts, (2) preparing parasitic bud ears of the Phellodendron sinii Y.C Wu, (3) treating branches of the Phellodendron sinii Y.C Wu, and (4) grafting and the like. The method for increasing the parasitic yield of the Phellodendron sinii Y.C Wu is provided for the first time, so that the vacancy of the prior art is made up; parasitic leaves of the Phellodendron sinii Y.C Wu can be used for making tea, parasitic wood can be used as a traditional Chinese medicine, and the parasitic wood has the effects of clearing liver and improving vision and reducing uric acid, and can also be used for dispelling wind and cold, resolving qi and relieving dyspepsia and treating influenza and other symptoms; Through the method for increasing the parasitic yield of the Phellodendron sinii Y.C Wu, the parasitic yield of the Phellodendron sinii Y.C Wu can be increased, and meanwhile damage to the hosts can be reduced.