56 results about "Phragmidium violaceum" patented technology

The invention discloses a quick cultivating and planting method for large crape myrtle landscape trees. The quick cultivating and planting method is characterized by comprising the following steps: selecting a perishable weed-tree pile which is nearly 2m in height, 0.2-0.4m in lower-end diameter and 0.15-0.35m in upper diameter as a tree shaft model; firmly around the tree shaft model, planting un-branched crape myrtle trees of 2-3 years in the soil, wherein the adjacent trunks are close to each other; using a plastic film to firmly cover and fix the trunks on the tree shaft model; removing the film in late June of the year, using a new film to recover the trunks in the late autumn, removing the new film in late June of the next year; and covering the trunks for another time by another new film in the late autumn, and removing the coating and the bonded films in the late June of the third year; and carrying out nutrient and water management according to a normal management method of an artificial cultivation method of crape myrtle during the whole cultivating and planting period. The quick cultivating and planting method can quickly cultivate large crape myrtle landscape trees within three years; the diameter at breast height of the trees can be designed by pre-selecting the diameter size of the model shaft model; the cultivated and planted large landscape trees are smooth and upright in trunks; the main branches are good in modelling; and the planting and cultivating survival rate is 100%.

The invention discloses a crape myrtle root part grafting landscaping method, which comprises the following concrete steps of 1, seedling selection: selecting 2 to 3 strains of crape myrtle with great flower color differences, unique stem shapes and similar specifications; 2, root treatment: clearing root soil, maintaining the root system completion, enabling roots to be tightly leaned through regulating the directions or the angles, maintaining main stems in a V shape or a heart shape, using tightly leaned parts of the root system being 2cm under the ground as grafting points, and removing root systems around the grafting points so that the leaning connecting treatment is convenient; 3, layer butt joint anastomosis formation at two sides of the root part by adopting a root part leaning connecting grafting method; 4, interface healing promotion: using a grafting film for tightly and firmly binding the interface part, using humid soil for compactly covering the interface part, then, planting tree seedlings into the soil, always maintaining the soil moisture, maintaining the water fertilizer supply of the root part in three months after the grafting, and preventing and treating pestdiseases in time in the growth period; and 5, trimming and landscaping treatment. The crape myrtle root part grafting landscaping method has the advantages that the flower arrangement technology is used in the seedling culture process, and the ornamental effect of the crape myrtle is greatly improved.

The invention relates to a lagerstroemia indica cutting breeding method, which belongs to the technical field of plant cuttage. The method comprises the following steps: I, preparing a cutting matrix, sterilizing perlite, coco coir, peat and red earth, uniformly mixing with growth liquid, and spraying chitosan gel; II, cutting: selecting epicormic branches of the lagerstroemia indica for cutting; III, cutting managing: managing the sunlight, temperature, humidity, nutrition and sterilization; IV, transplanting to a plant nursery: transplanting the lagerstroemia indica to the plant nursery after the roots of the cut epicormic branches of the lagerstroemia indica are fully developed. The lagerstroemia indica cutting breeding method has the advantages of high survival rate and high growth speed.

The invention provides a crape myrtle nursery stock cottage cultivation method which comprises the steps that 1. the method is carried out on July and August in each year; 2. chemical weeding is forbidden in a scion collecting field, and nursery stock water permeating is carried out 20 days before dry scion collecting; 3. 25 cm-30 cm deep ploughing is carried out on a selected field parcel; 4. soil is subjected to disinfection; 5. column standing and shed building are carried out, and sunshade net covering is carried out for sun shading; 6. after a seedbed is subjected to complete watering, S-metolachlor is used for being sprayed to cover weeds; 7. annual half-lignification branches are selected for pruning; 8. too-tender tops of the branches are removed, 40 g of Guoguang naphthylacetic acid powder and 40 Kg of water are mixed to form a solution in a dissolution mode, and cutting slip soaking is carried out for 15-20 minutes; and 9. before cottage, water is sprayed to the seedbed for 3-4 times, the cottage depth is 1 / 3-1 / 2 of the cutting slip length. According to the method, crape myrtle seedlings cultivated in a cottage mode are high in survival rate, quick in growing, long in flowering phase and capable of being used as urban landscape trees for planting.

The invention provides a crape myrtle old branch cutting propagation method and belongs to the technical field of plant cuttage. The method is characterized by including the following steps of (1) old branch collection, (2) soil preparation and bed culture, (3) cuttage, (4) field management and (5) old branch transplantation. The crape myrtle old branch cutting propagation method can be suitable for the weather soil environment of China, the rooting condition is good, the yield reaches over 85%, a gap of the related technical field is filled, operation is simple, the propagation speed is high, and the market prospect is good.

The invention discloses a crape myrtle tree form with a spindly skeleton and a pruning method thereof, which relate to the technical field of garden tree pruning. A trunk of the tree form is obvious, and the trunk is thick and skeleton-shaped, so that an operation of controlling the diameter of a crown, the size of a tree body and the height of the trunk according to the growth space is facilitated; branches are distributed uniformly, a state that lower branches are sparse and upper branches are dense, outer branches are sparse and inner branches are dense, and the branch trend is mean and robust is kept, branches are well-arranged, and a certain distance is kept between layers; the ventilation and light transmission properties are good, thereby facilitating the robust growth of plants, and reducing plant diseases and insect pests; and inflorescences inserted in the periphery of a crown in the flowering period are easy to form a neat bulk structure, the pruning method is simple to operate, easy to carry out, and applicable to the standardized production and management of nurseries, and facilitates the highlighting of a crape myrtle landscape effect in case of being applied to gardens, therefore, the pruning method is suitable to be promoted and applied in garden production.

The invention discloses a rapid cutting propagation method of crape myrtle single-plant germplasm. On the basis that crape myrtle single plants with the good characters of the natural tree type, flowering habit, flower color and flower diameter size and the like are surveyed and screened out, incising and sprouting promotion is performed on optimized single-plant rootstock portions or purging and sprouting promotion is performed on the surface soil layer lateral roots to form young root sucker coppice shoots at the developmental stage, the coppice shoots are used for ear making and cutting propagation, cutting seedlings are used for building a cutting orchard, cutting orchard building and management are performed by routine, scion wood is completely collected and processed on the base of the trunk of the stock plant to promote sprouting and cultivation of coppice shoots, the standard quality of ear cutting and making is strictly regulated, the cutting seedbed matrix arrangement is simplified, rooting accelerator arrangement and using method are optimized, limitation of the cutting season is broken through, rapid long-term large-scale cutting seedling is achieved, the cutting survival rate and nursery stock quality are improved, and the cutting seedling cost is lowered.

The invention discloses a method for culturing seedlings of crape myrtle. The method comprises the steps of garden selection, land preparation, seed treatment before seeding, seeding, shed erecting, shed removing and daily management. According to the method disclosed by the invention, the growth situation of the crape myrtle is fully considered, seeds are treated by adopting potassium permanganate, gibberellin and naphthylacetic acid through years of practical experience, the germination rate and the germination vigor of the seeds can be effectively increased, meanwhile, a favorable growing environment is provided for young seedlings by utilizing a greenhouse method, and the growing speed and the growth vigor of plants are increased.

The invention discloses a cultivation technology for keeping crape myrtle blooming continuously. The cultivation technology specially comprises the steps that firstly, after leaves fall in the autumn of the first year and before air temperature is decreased to zero degree, base fertilizer is annularly applied to the roots of the crape myrtle in a topdressing mode; secondly, when branches of the crape myrtle grow to 30-40cm in length in the spring of the second year, one third of the branches of the crape myrtle are selected for cutting-back, the parts, 10cm in length, of one third of the branches are kept during cutting-back, and two thirds of the branches, which are reserved, constitute a first set of branches which bloom firstly; thirdly, the cutting-back branches constitute a second set of blooming branches after sprouting; fourthly, when the first set of branches starts to bloom, 0.3% monopotassium phosphate and 0.2% urea are sprayed on leaves, and a foundation is laid for blooming of the second set of branches. According to the cultivation technology, by means of grouping and pruning of the branches of the crape myrtle, fertilizer supplement and other measures, the crape myrtle can bloom continuously as long as four months, the full-bloom stage of the crape myrtle can be kept around the National Day, a festive atmosphere can be added to the National Day, and an ornamental effect of the crape myrtle is improved greatly.

The invention discloses a cuttage method for crape myrtle twigs with a low cost and a high survival rate, and belongs to the field of plantation. The method specifically comprises the steps of selection of cutting slips; preparation of treating fluid for roots; treatment of the cutting slips; preparation of cutting medium; cuttage of the cutting slips; management after the cuttage. According to the cuttage method, all the operational steps are reasonable in matching, and the survival rate of the cultivated cutting slips reaches 97% or above; due to the fact that the physical performance of the cutting slips is improved, the management cost is reduced in the cuttage process, the cost of the finally cultivated cutting seedlings is reduced by about 30% compared with a traditional method, and thus economic benefits are increased greatly.

The invention discloses to a cultivation method for a specimen tree, crape myrtle, which comprises a routine cultivation method with the steps: a. cultivation seedlings; b. inverted planting seedlings, that is, the top end of seedling is downward and the root is upward; c. sprouting and growing of seedlings, that is, new twigs are growing out from the trunks of the inverted seedlings; d. specimen forming, that is, trees are cared and pruned to lead the peripheral diameter of tree branches at the place 450 - 550mm above the ground to be 250 - 350mm and the peripheral diameter of tree branches at the place 800 - 1200 mm above the ground to be 60 - 150 mm; when overall height reaches 2500 to 3500mm, the trees can be sold. The invention has the advantages that: by adopting inversion cultivation method, the growth cycle are greatly shortened with high enjoyment and comparatively high survival rate.

The invention discloses a crape myrtle planting process technology which comprises the steps of field culture, pot culture, fertilization, disease and pest prevention and control and pruning. Pot culture conducted on grown-up seedlings obtained through cuttage of current-year old branches is a good rapid bonsai culture method, coiling, bundling and shaping are performed when spring twig growth stops and branches are lignified, bonsai at various postures are formed through traction of thin coir ropes. In fertilization, disease and pest prevention and control, crape myrtle management is generally extensive, shooting nitrogen phosphorus and potassium fertilizers are combined in the first ten days of March, and phosphorus and potassium fertilizers are applied in the last ten days of May to the first ten days of June to strengthen branches and promote flower formation. If diseases are found, Bordeaux mixture and 600 times of carbendazim are adopted for prevention and control. The growth demand for warmth preference of crape myrtles is met through reasonable testing and research, the adaptability is good, the problem that the crape myrtles are afraid of cold is solved. In the method, the lighting demand of the crape myrtles is fully considered, the conditions suitable for crape myrtle growth are summarized, a favorable growing environment is created, and the survival rate is improved.

The invention relates to an interplanting method of hickory nuts and crape myrtle. The interplanting method comprises the following steps of selecting a field, selecting seedlings, performing soil preparation, digging holes, planting the crape myrtle, and grafting the crape myrtle by a conventional method; selecting hickory nut seedlings, and placing the hickory nut seedlings in a liquid medicine pot for soaking for one day before the hickory nut seedlings are planted; and by using the crape myrtle as a center, planting three hickory nut seedlings around each crape myrtle, fertilizing the crape myrtle every two months, fertilizing the hickory nuts every two months, and trimming and drawing branches in the fertilizing process once every one month. The interplanting method has the beneficial effects that the hickory nuts and the crape myrtle are interplanted, through the technique, not only is the problem that the soil is in short supply solved, but also the yield of the hickory nuts planted by the interplanting method is higher than that of the hickory nuts by a method for singly planting the hickory nuts, the nutrient value is high, and the survival rate of the crape myrtle is also increased by 15%-20%.

The invention discloses a garden pavilion artistic cultivation method of crape myrtle plants. The method includes the steps of artistic modeling designing of a crape myrtle garden pavilion; making andinstalling directional dry formwork supporting frame of crape myrtle single plant; making and installing single plant crape myrtle directional dry formwork; preparing dry site and fertility remolding; selecting and cultivating single plant dry seedling; directional single seedling cultivation; processing method of an inner plane of the crape myrtle pavilion and an access path; site transformationof the designed crape myrtle park pavilion and site fertilization of crape myrtle seedling planting; making crape myrtle pavilion single plant approach grafting support frame; single plant orderly approach grafting; growth and healing molding. The garden pavilion art of the crape myrtle plants is high in artistic value and ornamental value, and the ornamental effect and seedling value are improved.

The invention relates to a crape myrtle tender branch vessel cuttage method and belongs to the technical field of plant cutting. The crape myrtle tender branch vessel cuttage method comprises the following steps including the first step of cutting medium and vessel preparation, the second step of cutting spike selection, the third step of the cuttage process, the fourth step of the transplanting process, the fifth step of follow-up management and the sixth step of seedling adaptation, wherein S1, the cutting medium and vessel preparation is conducted, and sterilized perlite, an organic cutting medium, a nutrition pot, a cuttage disk and a water tank are prepared; S2, the cutting spike selection is conducted, and crape myrtle tender branches are selected for cuttage; S3, the cuttage process is conducted, and the crape myrtle tender branches are put into the water tank in a cuttage mode; S4, the transplanting process is conducted, and after callus tissues of the crape myrtle tender branches subjected to the cuttage are formed, the crape myrtle tender branches are transplanted into the nutrition pot and urgently need to be cultivated in the water tank; S5, the follow-up management is conducted, water level in the water tank is kept, and perpendicular incidence of sunshine on the water tank needs to be avoided; S6, the seedling adaptation is conducted, and then the cultivation is completed after the seedling adaptation. By means of the crape myrtle tender branch vessel cuttage method, the defect that entire tender branches can not be used in the existing crape myrtle cuttage technology is overcome, cuttage breeding production can be conducted in the whole crape myrtle growing season, large-scale crape myrtle breeding can be achieved, the survival rate is high, the finished products after the cuttage are container-grown seedlings, and the long-distance transport is facilitated.

The invention relates to the technical field of flower planting, and discloses a method for processing crape myrtle seeds. The method comprises the following steps: fermenting seeds, drying the seeds, soaking the seeds, accelerating germination of the seeds, and sowing the seeds. The method is simple, the germination rate of the crape myrtle seeds is remarkably increased, that is, up to 59.7%, the germination acceleration time is 4-5 days, the unearthing time of buds after sowing is 2-3 days, the planting efficiency of crape myrtle is remarkably improved, and the planting cost is reduced by 10.6%; and mature crape myrtle fruits are harvested and fermented with acetic acid, then peel is decomposed, nutrient components in the peel are leached out, rice micro-molecule nutrient components can be generated, the pH value is reduced to 4.7-4.9, the activity of dormancy substances in seeds is inhibited, seed dormancy is broken, nutrient components can permeate into seed coats, the nutrient components in the seeds are increased, the activity of embryos inside the seeds is improved, and thus germination can be accelerated.

The invention discloses a method for raising lagerstroemia indica seedlings by grafting in summer. The method comprises steps as follows: improved lagerstroemia indica lignified branches in the length of 8 cm-10 cm are taken as scions and treated from the early July to the late August, then the scions are grafted on lagerstroemia indica stocks with an improved cut-grafting method and bound and fixed with grafting films, the grafting films wrapping the scions are broken after 10-25 days so that new buds can emerge and grow. The method adopts an efficient and low-cost lagerstroemia indica grafting technique and can be applied to raising of lagerstroemia indica seedlings by grafting in summer in a large scale, and the survival rate is up to 90% or higher. With the popularization and application of the method, the supply capacity of improved lagerstroemia indica seedlings can be greatly improved, and the economic benefits are great.

The invention discloses a fast germination accelerating method for crape myrtle seeds. The method comprises the following steps: (1) seeds are put into a seed disinfectant to be soaked for 3-4 h; (2) the seeds are taken out of the disinfectant, the disinfectant on surfaces of the seeds are reserved, and the seeds are put onto a wooden sieve and fumigated with steam from under the wooden sieve for 14-18 min; (3) the seeds are irradiated with ultraviolet light for 15-20 min after being fumigated and then are sown. With the adoption of the method, the germination acceleration time of the crape myrtle seeds can be effectively shortened, the germination rate of the seeds can be relatively high, requirements of the crape myrtle seeds for fast sowing and seedling raising can be met, and the method is simple in operation and environment-friendly and has great popularization and use value.

The invention discloses a lagerstroemia transplanting method, and relates to the technical field of transplantation of greening trees. The lagerstroemia transplanting method comprises the following steps: planting; watering and applying fertilizer: watering lagerstroemia for 1-3 times in regions with spring drought, after autumn, applying composted human or livestock manure or urine or in May and June, applying liquid fertilizer for 1-2 times while watering; trimming: in the growth process of the lagerstroemia, removing lateral buds at the lower parts of stems at any time, and in the falling process of leaves, trimming leggy branches, deadwoods and ill branches, wherein 0.5-1 kg of a water-retaining agent is spread into filled fine soil in the planting process and the water-retaining agent comprises calcium chloride and potassium carboxymethyl cellulose in a ratio of 1: 1-3. By the lagerstroemia transplanting method, not only moisture absorption and water retention can be achieved, but also fertilizer, and potassium, calcium and metal elements can be supplied to the lagerstroemia so as to promote the growth of the lagerstroemia; the lagerstroemia transplanting method is particularly applicable to transplantation of arid regions; the survival rate can reach more than 90%.

The invention relates to a cuttage culture medium for crape myrtle twigs and a preparation method thereof. The cuttage culture medium is prepared from the following components in parts by weight: 50-80 parts of yellow subsoil, 5-8 parts of coarse sand, 15-25 parts of fine sand, 8-15 parts of sticky rice pulp, 3-5 parts of quick lime and 0.5-1.2 parts of cured vegetable oil, wherein the mass ratio of sticky rice powder to water in the sticky rice pulp is 1:(1.5-2). The preparation method comprises the following steps: mixing the sticky rice pulp with the quick lime; reacting for 2-3min, and then mixing with the yellow subsoil, the coarse sand and the fine sand in proportion and paving onto a seedbed; adopting a thin pick for poking small holes distributed in the form of rectangular array in the cuttage culture medium; and dropwise adding the cured vegetable oil into the cuttage culture medium. The cuttage culture medium provided by the invention is especially suitable for a cutting seedling method for the crape myrtle twigs. A single cutting slip can be stably erected in the medium and the cutting slips need not be bounded and then inserted, so that the cutting slips are greatly saved and the seedling cost is lowered.

The invention belongs to the technical field of ornamental potted landscape preparation, and particularly relates to a preparing method of a small-sized crape myrtle potted landscape. The method comprises the steps of stock selection, stock processing, stock cultivation, grafting and management after grafting. Compared with the prior art, the method has the advantages that cultivation is conducted under the leeward and shading condition, the low-light illumination synergistically acts with the natural plant growth inhibitor, the method is matched with an auxiliary effect of an iron wire, the crape myrtle potted landscape is dwarfed, through a multi-year grafting mode for many years, the crape myrtle potted landscape has more layering, and the ornamental value is improved; meanwhile, the sealing solution promotes wound healing and rapid germination, and reduces the harm of harmful substances to wounds; the prepared crape myrtle potted landscape is good in modeling retention degree and high in laying, the grafting survival rate is improved, the germination time is shortened, and the method can be applied and popularized.

The invention discloses a method for identifying plant variety, and provides a method for identifying crape myrtle variety. The method comprises the following steps: 1) carrying out polymerase chain reaction (PCR) amplification by taking a genome deoxyribonucleic acid (DNA) of to-be-detected crape myrtle as a template and using a primer composed of two single-chain DNA molecules shown in a sequence 1 and a sequence 2, so as to obtain a PCR product; 2) sequencing the PCR product, and listing the nucleotide formulas of the to-be-detected crape myrtle according to the sequencing result; 3) comparing the nucleotide formulas obtained in the step 2) with corresponding nucleotide formulas of a plurality of crape myrtle varieties, so as to determine the variety of the to-be-detected crape myrtle. An experiment proves that the method is accurate, and simple and fast to operate, the production efficiency and the quality monitoring level of related enterprises can be improved, and the defects of the traditional method are effectively compensated. In addition, identification of a non-flowering phase (for example, a seedling stage) is simultaneously achieved. The method has important significance on facilitation of development of new variety breeding of the crape myrtle, crape myrtle flower and wood industries and urban garden greening, and environmental protection.

The invention discloses a cutting breeding method for crape myrtle. The cutting breeding method for the crape myrtle comprises the following steps: (1) selecting half-lignified current-year branches, cutting to be cuttings of which the length is 7-9 cm, keeping 2-3 leaves at the upper part of each branch; (2) soaking the cuttings in soaking solution for 12-14 hours, and placing the cuttings in a sealed container in which the concentration of carbon dioxide is 800-820 ppm, and taking out after 20-25 min; and (3) taking out the cuttings in the container, and placing in 10-14 DEG C of the environment for 40-60 min, and inserting in a seeding matrix, wherein the inserting depth is 3-4 cm. The method is used so that the rooting percentage of the crape myrtle cuttings is higher and the growth rate of the cuttings is faster, the seedling period is shorten, the utilization ratio of the land is improved, the bred crape myrtle cuttings has good stress resistance and higher survival rate, and the method is suitable for large-scale promotion and planting.

The invention discloses a lagerstroemia indica and dragon juniper combination cultivation modeling method. The lagerstroemia indica and dragon juniper combination cultivation modeling method includes the following steps that 1, root control containers with the specification of 50 cm*50 cm are selected and serve as modeling plant cultivation containers; 2, mature lagerstroemia indica plants are selected, and are transplanted in the root control containers; 3, young dragon juniper seedlings are selected and are transplanted in the root control containers; 4, the transplanted lagerstroemia indica plants and the transplanted dragon juniper plants are subjected to additional fertilizer applying and watered, the whole plants are put on a place with good ventilation and illumination together with the root control containers, and after the plants stably grow, the next step is carried out; 5, the two plants are clipped; 6, dragon junipers are modeled. The modeling shapes are determined according to the branch conditions of the dragon junipers, trunks need to be bent and wound around trunks of the lagerstroemia indica plants, and it is important to note that the vertical height of the trunks of the dragon junipers cannot over 50 cm. According to the lagerstroemia indica and dragon juniper combination cultivation modeling method, the lagerstroemia indica and the dragon junipers are subjected to combination modeling innovating, the defect that a traditional single tree variety is monotonous in color is overcome, and the ornamental value of a modeled product is improved.

A clip disinfection treatment agent for crape myrtle cut branches is prepared from 8-12g of ofloxacin gel, 8-12ml of Chinese prickly ash oil, 7-9g of potassium dihydrogen phosphate, 4-6ml of 1.8% avermectin missible oil, 3-5g of alanine, 8-12ml of a gibberellin aqua, 4-6g of mint extract, 7-9g of compound sodium nitrophenolate, 12-18g of 50% carbendazim wettable pulvis, 2-4g of neutral protease, 3-5g of proanthocyanidins, 8-12g of low sodium salt, 2-4g of curcumin, 2-4g of chelated zinc, 15-25g of modified starch, 12-17ml of Chinese liquor, 8-12g of tea saponins, 4-6g of ammonium phosphate, 2-4g of azadirachtin and 3-5g of alkaloids of Sophora flavescens. The treatment agent disclosed in the invention has the advantages of promotion of the vitality of plant sprouts, easy rooting, high survival rate, good disease resistance, reduction of seedling insect diseases, improvement of nutrients required by normal growth of seedlings, plantation cost reduction, and economic benefit increase.

The invention mainly relates to the field of planting and discloses a crape myrtle culture medium. The crape myrtle culture medium is prepared from the following raw material: crape myrtle bark, rice chaff, maize straws, waste culture medium of edible fungi, biogas residues, bagasse, waste material of slaughtering, broccoli stems, EM bacteria, traditional Chinese medicines, red clover extract, slaked lime, vermiculite, diatomite and zeolite. The raw materials are rich, the nutrition is balanced, and the crape myrtle culture medium can provide nutritional ingredients, resist bacteria, kill insects and enhance the disease resistance of crape myrtles, so that the survival rate of the crape myrtle reaches 100%, the rate of diseases and pests is reduced to 4%, and the economic benefits are improved by 11.2%. The raw materials are fermented by mixed bacteria, and the added zeolite is enriched in micromolecular beneficial components, so that the growth, early flowering and production of a lot of flowers can be promoted, so that the flowering phase is prolonged by 20-25 days, and the ornamental value is improved. The crape myrtle culture medium is synergistic with multiple Chinese herbal medicines so as to inhibit diseases and pests, the incidence rate of the diseases and pests is reduced, usage of pesticides and bactericides is reduced, and the planting cost is saved. The medium is dried, contains multiple probiotics and is convenient to transport and use.

The invention provides an anti-freezing nutrient solution for crape myrtle, and relates to a crape myrtle excellent green anti-freezing technology. Since the crape myrtle has a very high ornamental value, the crape myrtle serving as a landscape tree is planted at public places such as two sides of a road and parks, and the anti-freezing solution of the crape myrtle should be green and friendly, and free of harm to people and livestock. The anti-freezing solution prepared by matching innocuous and non-poisonous raw materials such as polyethylene glycol, magnesium sulfate, tetramethylolmethane, glucose, plant hormone abscisic acid (ABA), glycerol and gelatin according to a certain ratio is capable of well strengthening the cold hardiness of the crape myrtle, the manufacturing process is simple, and a product is low in price and has excellent market popularization.

The invention discloses a planting method for increasing seedling emergence rate of common crape-myrtle. The method comprises the following steps: (1) subjecting stored common crape-myrtle seeds to tiled placement for 7 to 8 days, and spraying a treatment agent to the common crape-myrtle seeds every day; (2) placing the soaked seeds in a germination hastening box, carrying out germination hastening for 8 to 10 hours, adjusting the temperature to 25 DEG C to 27 DEG C and the humidity to 80% to 82%, carrying out ultraviolet irradiation, and adjusting the temperature to 27 DEG C to 28 DEG C, thehumidity to 82% to 84% and the irradiation to 800lx to 1,000lx 6 hours after germination hastening, so as to obtain germination hastened seeds; and (3) sowing the treated seeds to seedling beds in a greenhouse for seedling raising, carrying out watering every day, keeping the temperature of the greenhouse to 25 DEG C to 28 DEG C and the humidity to 78% to 82%, and preparing to carry out transplanting when the height of each common crape-myrtle seedling grown reaches 15cm to 18cm. The method is high in seedling emergence rate and is applicable to large-scale planting.

The invention relates to the field of fertilizers, and especially relates to a fertilizer for Lagerstroemia indica. The fertilizer comprises the following components in parts by weight: 20-25 parts of straw, 10-20 parts of sawdust, 10-12 parts of expanded perlite powder, 1-2 parts of a nitrification inhibitor DMPP, 0.3-0.5 parts of tea saponin, 80-100 parts of cow dung, 60-80 parts of rabbit manure, 3-5 parts of bacteria powder, 40-60 parts of bentonite, 60-80 parts of wood chips, 30-40 parts of bauxite, 20-30 parts of mica powder, 40-50 parts of silkworm excrement, 18-20 parts of mushroom dregs, 8-10 parts of sea-tangle dregs, 3-5 parts of citric acid residues, and 180-200 parts of water. The biological fertilizer can improve soil and does not have chemical additives, and is a novel green environment-friendly type fertilizer.