59 results about "Salix warburgii" patented technology

The invention provides a combined remediation method for heavy metal contaminated soil. The method includes the steps that charcoal base fertilizer is applied to the heavy metal contaminated soil, and the charcoal base fertilizer and the soil are evenly mixed and then aged; after ageing is over, ricinus communis is planted, then a microorganism complex microbial inoculant is inoculated into the soil, and the ricinus communis is overall removed after ricinus communis fruits are harvested; after the ricinus communis plant is overall removed, charcoal base fertilizer is applied again into the soil where the ricinus communis is planted, and the charcoal base fertilizer and the soil are evenly mixed and aged; after ageing is over, a willow is planted, a microorganism complex microbial inoculant is inoculated into the soil, and the willow is overall removed after a certain period; and the steps are executed cyclically and repeatedly until the content of heavy metal in the soil reaches the safety standard. The combined remediation method is good in soil governing effect, fast in effect taking, short in time, capable of beautifying the environment while the heavy metal contaminated soil is governed and high in practicability.

The invention provides a preparation method for extracting salicin from bamboo-willow bark. The method comprises the following steps: Step 1, a raw material is dried and pulverized, wherein the bark of bamboo-willow with age more than 2 years is adopted as a raw material, and is dried and pulverized; the powder is sieved with a mesh with a size of 20-40 meshes, such that bamboo-willow park powder is prepared; the powder is dried with a continuous microwave drying method under a drying temperature of 60-95 DEG C, such that bamboo-willow park powder is obtained, wherein the particle size of the powder is 20-40 meshes. The raw material adopted by the method has the advantages of low solvent consumption and low cost. The extraction separation method is simple to operate, and has low equipment requirement, such that the method is suitable for large-scale popularization. In a product 1, salicin content is stabilized at 80-85%, and a yield is approximately 2.0%.

The invention discloses a radish planting method which comprises the first step of soil preparation and fertilization, the second step of seed treatment, the third step of seeding and seedling culture, the fourth step of thinning and final singling, the fifth step of water and fertilizer management, the sixth step of disease and insect control and the seventh step of radish harvesting. In the first of soil preparation and fertilization, loose and fertile sandy soil with sufficient sunlight is selected, the soil is disinfected through a disinfectant, then intensive farming and fertilization are carried out, 1000-1500 kg of farmyard manure, 5-8 kg of slow release urea, 2-3 kg of potassium sulphate, 10-15 kg of monocalcium phosphate, 50-70 kg of bamboo charcoal and 50-70 kg of willow saw powder are applied to each mu of soil to be evenly mixed with the soil on the surface layer, ridges with the width of 1.2 m, height 30 cm and furrow width of 30 cm are formed, and a conical pit forming device is used for forming pits. According to the radish planting method, the environment needed by growth of radish root systems can be effectively ensured, the radish quality is improved, the stress resistance and disease and insect resistance of radish crops are enhanced, the yield is high, and radishes are high in quality and free of pollution.

The invention provides a method for recovering acid-heavy metal contaminated soil. The method includes the steps that biological activated carbon base fertilizer is applied to the acid-heavy metal contaminated soil, mixed evenly and aged; after aging is finished, earthworms are placed in the soil to be cultured, and castor oil plants are planted and completely removed after fruits of the castor oil plants are harvested; after the castor oil plants are completely removed, earthworms are placed in the soil to be cultured again; after the earthworms are introduced into the soil normally, willows are planted, and the willows are completely removed after a period of time; the steps mentioned above are cyclically and repeatedly executed till the content of heavy metal in the soil reaches the safety standard. The method for recovering the acid-heavy metal contaminated soil has the extremely remarkable beneficial effects that a restoration period is short and the soil cannot be secondarily contaminated.

The invention relates to the field of cosmetics, and discloses a skin care composition containing a black willow bark extract. The composition comprises the following components in percentage by mass:0.1-30% of black willow bark extract, 0.1-20% of a humectant, 0.01-3% of a thickening agent, 0.1-20% of grease, 0.1-5% of an emulsifier, 0.01-10% of functional additives and the balance of purified water. The composition can effectively soften cutin, help the aged cutin fall off, clean skins, effectively help skins repair rough pores, and make the skins more moisturized, younger and healthier.

The invention provides a method for improving artificial hybridization of willow cut twigs. The method comprises the following steps: 1, bud twig collection and treatment, wherein an excellent single plant which grows robust and is free of plant diseases and insect pests and at the prime age is selected as a parent, and before buds begin to expand at the beginning of February, the twigs provided with buds are cut from the middle or upper portion of the crown in a selected mother tree, the diameter of each twig ranges from 1 cm to 2.5 cm, and the length of each twig is 1m; (2) after the twig is picked, conducting water planting on the male bud twigs in a greenhouse; placing the female bud twigs in shade for water planting, wherein the indoor temperature ranges from 8 DEG C to 11 DEG C, and the relative humidity ranges from 40% to 50%; three to five days later, moving the female bud twigs into the greenhouse for water planting together with the male bud twigs. According to the method, a soil culture method is adopted after the cut twigs are subjected to water planting and induced to root, the twigs are moved into flowerpots containing nutrient soil after root primordia emerge through water planting, for the bud twigs which are subjected to soil culture and root, a small amount of water is only supplied to the flowerpots when necessary, work such as pruning, cleaning and water exchange in the water planting process can be reduced, and labor and time are saved.

The invention discloses a paper mulberry sapling raising method in the technical field of agricultural planting. The paper mulberry sapling raising method comprises the steps that 1, cottage branchesare selected, wherein lignified branches of healthily growing and disease and pest free seed paper mulberries of 1-3 years old are selected as cutting seedlings, the stem nodes of each cutting seedling is 5, and 2-3 half leaves are retained; 2, a seedling raising medium is prepared from, by weight, the following raw materials: 10-13 parts of river sand, 5-8 parts of straw, 3-6 parts of plant ash,3-4 parts of chicken manure and 5-8 parts of willow bark liquid, and the raw materials are evenly mixed, and after the seedling raising medium is obtained; 3, cuttage is performed, wherein slope pruning is conducted on the bottom ends of the selected cutting seedlings, 2-4 stem nodes are of each cutting seedling are embedded into the seedling raising medium, then normal roots are watered; 4, management is performed until new buds grow from the cutting seedlings; 5, seedling hardening and cultivation are performed, wherein the cutting seedlings are transplanted to the seedling raising medium after new buds grow from the cutting seedlings for 5-10 days, the humidity of the seedling raising medium is kept to 40-50%, and the temperature is kept to 25-27 DEG C. By adopting the scheme, the rooting rate and survival rate of cutting seedlings can be effectively improved.

The invention relates to a method for processing willow seeds, which comprises the following steps: 1)preparing a treatment fluid by taking 90-95 parts of water, 3-4.5 parts of potassium nitrate, 2-4 parts of Bbidens biternata and 2-5 parts of garden balsam according to weight, taking bidens biternata and garden balsam in water for backflow extraction for 3 hours to obtain an extract, then adding potassium nitrate in the extract and mixing for dissolving to obtain the treatment fluid; and 2)immersing the willow seeds by an urea solution with weight concentration being 0.5% for processing for 2 hours under temperature of 30 DEG C, then immersing the seeds by the treatment fluid prepared in the step 1) for processing for 24 hours under temperature being 25 DEG C, and then planting. According to the invention, the germination rate of the willow seeds is high.

The invention relates to a treatment method for willow tree cuttings. The treatment method comprises the following steps: firstly, primary selection of cuttings; secondly, disease-resisting capability screening of the cuttings; thirdly, treatment of the cuttings; fourthly, cottage of the cuttings. Through experiments, after the cuttings treated by using the treatment method provided by the invention are cultivated into saplings, the resistance capability of the saplings to diseases is remarkably improved, i.e., the disease incidence is reduced from conventional 22 percent to 7 percent or lower; the treatment method disclosed by the invention realizes an obvious effect on improvement on the disease resisting capability of the cuttings by sufficiently utilizing the advantage that the willow tree cuttings are easy to survive.

The invention discloses a highway soil slope flood damage prevention method which includes steps of A1, piling; A2, planting shrub seeds at position which is 2-3cm lower than the ground of a slope; A3, laying local crop straws on the slope uniformly at the thickness ranging from 10cm to 15cm; and A4, covering with a net. After one or two years, the shrub seeds grow, the crop straws are decomposed completely to be a good organic fertilizer, and the organic fertilizer is absorbed and utilized by soil of the slope gradually and is an environment-friendly material. Willow or locust piles driven into the soil can grow and sprout at the probability of 80% at least during construction in spring or autumn, roots of the piles can grow and flourish gradually, then biological 'piles' and landscape 'piles' which grow strongly gradually are formed, and subsequent maintenance is almost omitted.

The invention discloses a coastal saline and alkaline land rain season willow root cutting forestation method. The coastal saline and alkaline land rain season willow root cutting forestation method includes variety selection, forest land underground water level control, soil improvement, bed manufacture, plastic film mulching, forestation and management. Compared with the prior art, the coastal saline and alkaline land rain season willow root cutting forestation method has the advantages that rainfall is large and forestation land is small in saline and alkaline stress effect in a rain season, and therefore willows easily sprout and grow, and then the willows can grow to be 1m high after the rain season is finished, the forestation land can be effectively mulched through proper close planting, salt surface infiltration action of the forestation land is inhibited, the forestation in the rain season can effectively avoid influences of spring drought, the root cutting forestation in the rain season has obvious advantages for coastal beach forestation land with no fresh water irrigated, and additionally by using the root cutting forestation, cuttings are completely inserted into soil, water retaining capacity of wickers is strong, and willow forestation survival rate on the coastal saline and alkaline land is improved, and furthermore when the root cutting forestation is used, forestation material consumption is small, the root cutting wickers are quick to collect and transport, forestation cost is low, close joining of all forestation environments is facilitated, and forestation efficiency is improved.

The invention provides a preparation method of willow panels. The method comprises the steps that willow log is cut into willow log sections with the length being 2-4 m; an automatic peeling machine is adopted for peeling bark, and meanwhile, the sections are aired until the moisture content of the willow log sections is 2-5%; then the willow log sections are soaked in a soak solution, then soakedin clear water, taken out and aired; then a cutting machine is adopted for cutting the willow log sections into willow boards with the thickness being 1-3 cm, then the willow boards are placed into liquid carbon dioxide and taken out, and after being held in a place with the temperature being 40-50 DEG C for one to two hours, the willow boards are soaked in alkali liquor and taken out; and the willow boards are soaked in a titanium sulfate and ferric sulfate mixed solution and taken out, the solution is drained form the willow boards, and then the willow boards are placed into a heating chamber for high-temperature treatment, taken out and subjected to surface treatment to obtain the willow panels. According to the preparation method of the willow panels, through pretreatment on the willow panels, survival of injurious insects in the willow panels is avoided, meanwhile, the strength of the willow panels is improved, the service lives of the willow panels are prolonged, and the panelsare in the specific light red and have a certain self-cleaning function.

The invention discloses a method for reducing willow catkins, and is characterized by comprising the following aspects: before blooming, applying a germination inhibitor to the root of a willow, wherein the germination inhibitor comprises the following components: triadimefon, salicylic acid, ethanol, betaine, ammonium chloride, potassium dihydrogen phosphate, boric acid, manganese chloride, sodium molybdate, and iron sulfide; during the blooming period of the willow, spraying a flowering inhibitor, wherein the flowering inhibitor comprises the components of water, gibberellin, ethanol, thiophanate methyl, zinc nitrate, manganese chloride, calcium acetate, magnesium chloride, boric acid and potassium dihydrogen phosphate, promoting female flowers to be converted into male flowers or inhibiting flower growth, and lowering the flowering rate; using a willow fruiting inhibitor to block an ethylene action mechanism and inhibit fruit ripening so as to reduce the ripening ratio of catkin fruits.

The invention discloses a restoration method of organic polluted soil. The restoration method comprises the following steps that (1) a soil restoration agent is evenly spattered onto the surface of the organic polluted soil, and deep ploughing and mixing are conducted; (2) one week later, willow seedlings 1-2 m high are planted on the soil treated in step (1), pteris vittata is interplanted in thespace of the willow seedlings; and (3) after being planted for two months, pteris vittata is pulled out and replanted for three times, and then one-year restoration is completed. The restoration method of the organic polluted soil is easy and feasible, has the outstanding removal effects on various organic pollutants such as organic pesticide residue, polychlorinated biphenyl and phenol in the organic polluted soil, the organic pesticide residue removal rate can be as high as 85.9% or above, the removal rate of polychlorinated biphenyl is 84.3% or above, and the removal rate of phenol is 86.2% or above; the raw materials are easy to get, the production cost is lowered, and the economic benefits are outstanding.

The invention relates to a cutting processing method capable of improving willow disease resistance. The method specifically comprises the following steps of 1, cutting clipping preprocessing; 2, cutting cuttage preprocessing; 3, caring and daily management after cutting cuttage. As is tested by experiments, the cutting processing method effectively improves the disease resistance of cuttage seedlings, the disease occurrence rate within 3 months is merely 4.1% or below, while in an existing cuttage method, the disease occurrence rate of the willow cuttage seedlings within 3 months reaches up to 15.2%. As can be seen, and the cutting processing method has an obvious effect of improving the disease resistance of the willow cuttage seedlings.

The invention provides a method for anticorrosive treatment of willow twigs, and relates to the technical field of production of wicker products. The treatment process is performed on live willow twigs on a willow, and the method comprises the following specific steps: (1) injecting an anticorrosive drug solution into the trunk of the willow from a position below a trunk bifurcation of the willow by adopting a transfusion method; (2) determining the initial time for injecting the anticorrosive drug solution into the willow; and (3) determining the cutting time of the willow twigs. The method for anticorrosive treatment of the willow twigs, provided by the invention, is simple in alive tree anticorrosive treatment process, and breaks through the conventional anticorrosive treatment method; after anticorrosive treatment of alive willow twigs, raw woods and plate squared timbers can be directly used outdoors, the economic added value of the willow is promoted, the willow twigs can be directly used for weaving wicker products, the steps for performing anticorrosive treatment on the willow twigs in the conventional willow weaving process are thoroughly changed, the anticorrosive effect is greatly improved, and the utilization ratio of drugs is also greatly promoted compared with that of the conventional method.

The invention provides an excavation method for a salt-tolerant gene of salix matsudana. The method comprises the steps that salt-tolerant salix matsudana and salt-sensitive salix matsudana are crossbred to obtain an F1 population, the F1 population is divided into salt-tolerant and salt-sensitive filial generations, and through salt stress, root systems of the salt-tolerant and salt-sensitive filial generations are subjected to transcriptome sequencing to obtain differential expression gene sequences separately; based on the salt-tolerant filial generation, a high-density genetic map is established, salt tolerance QTLs positioning is conducted, a QTL section is obtained through calculation, the QTL section, the differential expression gene sequences and a salix matsudana whole genome arecompared, and through analysis, the salt-tolerant candidate gene is obtained; through salt stress, the relative expression of the salt-tolerant candidate gene of the salt-tolerant filial generation ismeasured, the salt-tolerant candidate gene is determined as a salt-tolerant re-selection gene, instantaneous conversion is conducted, a salt-tolerant physiological index of a salix matsudana seedlingis detected, and the salt-tolerant re-selection gene is determined as a salt-tolerant gene. According to the excavation method, the problem is solved that during traditional salt-tolerant salix matsudana breeding, the salt-tolerant gene cannot be accurately found out.

The invention provides a method of releasing cleroderma harmandis for biological control of anoplophora glabripennis on willow trees. The method comprises the steps of in a pre-releasing investigation stage, checking affected willow trees and marking the trees; when newly hatched larvae of the anoplophora glabripennis is in an age peak, starting the manual release of cleroderma harmandi imagoes; the cleroderma harmand release time is from middle June to early and middle July, the daily average temperature during the cleroderma harmand release is about 25 DEG C, and the release of cleroderma harmand is conducted before 10 AM and after 5 PM; the release quantity ratio between the cleroderma harmand and the anoplophora glabripennis is 1-7:1; using adhesive tapes to paste glass tubes filled with cleroderma harmandis to the shady surfaces which are 1 meter away from the ground, of the trunks of the affected trees; unplugging cotton plugs to allow the cleroderma harmandi to crawl out. Compared with the prevention method of chemical pesticides, the method of releasing cleroderma harmandis for the biological control of the anoplophora glabripennis on the willow trees can completely solve the environmental pollution problem, the economical benefits are increased by more than 80%; release of the cleroderma harmandis for consecutive three years can effectively control the anoplophora glabripennis inflicting the willow trees.

The invention relates to a traditional Chinese medicine agent for treating uroschesis, which is prepared from the following medicinal materials in parts by weight: 3-9 parts of cornu cervi pantotrichum, 9-15 parts of purslane, 5-15 parts of cyrtomium fortunei, 2-5 parts of purple gynura root, 5-15 parts of polygonum cuspidatum, 3-9 parts of morinda officinalis, 3-7 parts of sambucus Chinese lindl., olea ferruginea royle, 9-15 parts of selfheal, 9-15 parts of narrowfruit currant root, 7-15 parts of salvia miltiorrhiza, 5-10 parts of lithospermum, 3-7 parts of celtis biondii, 4-9 parts of radix cynanchi atrati, 3-7 parts of lasia heterophylla schott, 9-25 parts of lalang grass rhizome, 2-5 parts of saussurea medusa maxim., 3-6 parts of caulis aristolochiae manshuriensis, 4-9 parts of rhizoma corydalis, 3-6 parts of akebiaquinata, 9-15 parts of patrinia heterophylla and 15-30 parts of rhizoma phragmitis. A clinical trial proves that the agent can treat the uroschesis safely and effectively.

The invention relates to a treating agent for a willow seed. The treating agent is prepared from the following components by weight: 90 to 95 parts of water, 3 to 4.5 parts of sodium bicarbonate, 2 to 4 parts of Spanishneedles herb and 2 to 5 parts of Herba Taxilli. The treating agent for the willow seed has low cost, is simple to use, can effectively promote germination of the willow seed, increases the germination rate of the willow seed, shortens germination time of the willow seed, improves germination efficiency of the willow seed and enhances stress resistance like saline-alkaline tolerance of a germinated plant.

The invention discloses a method for improving the willow cutting survival rate with a wicker skin extract. The method includes the following steps: (1) collecting wicker skins in the wicker processing process, washing the wicker skins, placing the wicker skins in a soak solution, increasing the temperature of the soak solution to 95-98 oC, conducting heat preservation for 3-4 hours, conducting filtering to obtain a filtrate and then cooling the filtrate to room temperature to obtain the wicker extract; (2) evenly mixing the wicker extract, sodium ferrocyanide, trimethyl ammonium chloride, N-(2)-L-alanyl-L-glutamine, disodium uridine-5'-monophosphate and water to obtain a willow seed strip soaking solution; (3) inserting the morphological lower end of a willow seed strip into the willow seed strip soaking solution for 30-40 minutes and then cutting the willow seed strip. The method for improving the willow cutting survival rate with the wicker skin extract is simple in operation and low in cost, and can effectively improve the cutting survival rate of the willow seed strip.

The invention relates to the technical field of agricultural planting, in particular to self-made rooting liquid for planting of stevia rebaudiana and a preparation method. The rooting liquid comprises the following components of willow shoots, poplar shoots, cactus, Chinese rose branches, herbs of knotroot bristlegrass, dracocephalum moldavicum, white sugar and rice vinegar. The preparation method comprises the following steps: separately weighing the willow shoots, the poplar shoots, the cactus, the Chinese rose branches, the herbs of knotroot bristlegrass and the dracocephalum moldavicum, placing the weighed willow shoots, the weighed poplar shoots, the weighed cactus, the weighed Chinese rose branches, the weighed herbs of knotroot bristlegrass and the weighed dracocephalum moldavicum in a container for mashing, and adding water which is 5-10 times of the weighed components for soaking to obtain a mixture; filtering the mixture to obtain soaking liquid; weighing the white sugar and the rice vinegar in a compounding ratio, adding the weighed white sugar and the weighed rice vinegar to the soaking liquid for uniform mixing, and performing concentration so as to obtain the rooting liquid. According to the rooting liquid for planting of the stevia rebaudiana, and the preparation method, disclosed by the invention, the rooting liquid is good in rooting effect, low in cost, natural and free from pollution; the preparation method is simple and convenient to operate, and suitable for vast peasants to use, and has high application value.

The invention provides a method for culturing willow seedling by a culture medium, and relates to the technical field of willow planting. The method comprises the following steps: preparing a culture medium, cleaning seedlings, drying, soaking, and culturing. Using the technology to culture willow seedlings, planting survival rate is high in later planting, and the method is suitable to be used for soil in different properties, and has low requirements on land. After planting, management is easy, and just simple normal maintenance is needed, and special management is not needed.

The invention discloses an improved control hybridization method on the tree of a willow. The method comprises the following steps of dwarf arbor willow cultivation, young tree girdling, greenhouse flower forcing, pollination, management after pollination and hybrid collection. The improved control hybridization method on the tree of the willow has the advantages that the advantages of the outdoorhybridization on the tree and greenhouse branch-cutting hydroponic hybridization are fully utilized, the disadvantages of the outdoor hybridization on the tree and greenhouse branch-cutting hydroponic hybridization are abandoned, thereby improving the hybrid maturity and harvest rate and improving the breeding effect, and the method is very suitable for hybridization breeding of an arbor willow with thin branches; the hybridization method and needed facilities are simple and grasped by general staffs, and suitable for scientific research and production personnel occupied in willow breeding.

A method for cultivation of cyclocarya paliurus leaves for preparing two types of tea is characterized by including steps: step one, in spring, after picking of cyclocarya paliurus spring tea, keepingnew branches and leaves as summer leaves; step two, alternately picking the summer leaves kept in the first step, and processing into cyclocarya paliurus black tea; step three, performing multi-batchpicking of gradually growing summer leaves until young shoots stop growing; step four, performing primary cultivation management on cyclocarya paliurus plants in summer and autumn; step five, pickingall of the remaining leaves on cyclocarya paliurus trees in one time in autumn, and keeping for preparation of broken black tea; step six, after picking of autumn leaves and before picking of autumnleaves in the next year, performing secondary cultivation management on cyclocarya paliurus. The summer leaves of cyclocarya paliurus are harvested alternately and prepared into high-quality black tea, the autumn leaves are all harvested for preparing the broken black tea, the two types of tea can be obtained in one year, tea product types are enriched, and the cyclocarya paliurus leaf utilizationrate is comprehensively improved.

The invention belongs to the field of agricultural forests and fruits, and discloses a compound preparation for repairing an injury of bark of a weeping willow. When the bark of the weeping willow is injured, a wound is easy to worsen; the compound preparation prepared by the method can prevent the wound from worsening, accelerate wound healing, increase a seedling survival rate and repair the injury of the bark of the weeping willow. The compound preparation is characterized in that the compound preparation is prepared by a method comprising the following steps: 1, 100-110 weight parts of water and 14.5 weight parts of sodium metasilicate pentahydrate are stirred uniformly; 2, 3 weight parts of boric acid are added to the liquid in Step 1, and stirred for 5-10 minutes; and 3, 30 weight parts of iron dichloride tetrahydrate are added to the liquid in Step 2, and stirred for 5-10 minutes.

The invention discloses a method for preventing and controlling valsa canker and dry cracking of willows. The technical scheme comprises the following key points: 1) coating diluted lime powder or lime paste on trunks of the willows in summer; 2) coating diluted lime powder or lime paste on the trunks of the willows in winter too; 3) in the case of disease speckles, removing the disease speckles or infected barks by using a knife, and enabling a cut edge to be sloped; 4) washing and disinfecting wounds by using a bactericidal medicine; and 5) coating the wounds with diluted lime powder or limepaste. The method provided by the invention achieves the effect that the valsa canker and dry cracking of the willows can be effectively prevented and controlled.

The invention discloses a method for cultivating golden cicadae in a willow forest. The method includes the steps of firstly, renovating soil, to be more specific, laying a layer of water-dripping pipe in the middle of the sandy soil, and laying a thermal-insulation layer, which is made of multilayer cotton cloth, above the water-dripping pipe; secondly, planting willows; thirdly, laying a layer of sand in deep pits, filling fine sand with golden cicada larvae onto the sand, and planting cicada-egg branches; fourthly, performing growth management, to be more specific, regulating turning on water supply equipment, spraying water mist in the air around the cicada-egg branches every day, and spraying water to the ground near the cicada-egg branches; within the 7 days after the third step, using cotton cloth 0.5cm in thickness to cover the ground near the cicada-egg branches every day when mist spraying and water spraying are not performed; fifthly, harvesting, to be more specific, collecting golden cicadae and periostracum cicadae on the ground; sixthly, collecting the cicada-egg branches. The method has the advantages that the yield of golden cicadae is increased, and manpower and material resources are saved.

The invention discloses a method for preparing willow leaf tea. The method comprises the following steps: processing willow, processing willow leaves, picking the willow leaves, rinsing, carrying out fixation, rolling, drying, and packaging. The method disclosed by the invention has the advantages that the willow is processed by adopting a herbaceous plant solution and a fertilizer, so that the willow can rapidly grow in a short time, the growth of the willow leaves is promoted, and nutritional ingredients inside the willow leaves can be more stable and are hardly lost during post treatment; the willow leaves are sprayed with nutrient solution before being picked, so that the willow leaves absorb protein ingredient and other nutritional ingredients in the nutrient solution; traditional Chinese medicine ingredients are added, so that the nutritional ingredients in the willow leaves and the nutritional ingredients in the nutrient solution can be better fused and supplement each other in effect, the taste of the willow leaves can be effectively improved, and the willow leaf tea is smooth, fragrant and sweet in taste and has the effects of processing bronchitis, irregular menstruation, sore throat, lumbar muscle strain, arthralgia and obesity.

The invention relates to a method for removing heavy metals from a water body by composite wetland vegetation. The method is characterized in that a wetland system is built on the water body; and the composite wetland plants in the wetland system are reed, cattail and willow, the hydraulic retention time is 5-10 days, 10-100 plants of reeds are planted on each square meter, 10-150 plants of cattail are planted on each square meter, and 20-100 plants of willow are planted on each square meter. According to the plant density of three types of wetland plants, the removal capacities of the three types of plants are complementarily collocated and are mutually accelerated; meanwhile, because of the mutual action of the three types of wetland plants, the composite wetland vegetation has strong vitality, good tolerance and high competitiveness, the formed composite vegetation can be stable for a long term, and therefore, the higher removal efficiency can be kept for a long term within the loading capability range of the heavy metals; and the composite wetland vegetation with the optimized formula is applied to obviously lower the heavy metal content of effluent, the heavy metal content in the biomass of the composite wetland vegetation can be expected to reach 0.5-1% or above, and the composite wetland vegetation has the value of a mineral resource.