38 results about "Chrysopogon zizanioides" patented technology

The invention provides a strengthened hyperaccumulation phytoremediation technology for arsenic and cadmium heavy metal polluted soil. The technology comprises stabilization repairing and ecological repairing. In the stabilization repairing process, after an upper layer of to-be-repaired heavy metal polluted soil and a stabilizer are evenly stirred, water is added for irrigation, and curing is conducted under the nature condition, wherein the stabilizer comprises, by weight, 40-60 parts of lime, 30-50 parts of sepiolite and 5-10 parts of monocalcium phosphate. In the ecological repairing process, vetiver grass is planted in cured soil subjected to stabilizer treatment. According to the technology, the nutrient condition, the pH value and the redox potential of the heavy metal polluted soilare adjusted in the stabilization repairing process, and the mobility of the heavy metal is cured; the vetiver grass and other plants are used for conducting enrichment absorption on heavy metal, andthe plant root system is used for conducting stable curing on the heavy metal; and safe and efficient arsenic and cadmium heavy metal polluted soil is achieved through combination of the two above processes, and the repairing cost is reduced.

The invention discloses a vetiver substrate for culturing edible mushrooms, which can comprehensively replace main raw materials for culturing the edible mushrooms, such as floristic chestnuts, cotton seed hulls, wheat straws and the like, comprises a main component of vetiver and is prepared by the following steps: drying, crushing and soaking to wet with limewater the vetiver, adding accessories and other materials into the wet vetiver, filling the mixture into sterilizing bags for sterilization, and performing cooling, sterilization, inoculation, mushroom formation, color change, debagging and fruiting management. The substrate radically develops a derived valuable channel for turning waste into wealth for the long-term development of the vetiver, and ecologically, reduces timber harvesting rate in response to the appeal of the state, simultaneously solves the problem that mushroom farmers cannot bear big bulge in the prices of the conventional substrates, such as the cotton seed hulls, and increases the yield of the edible mushrooms due to the close texture of the vetiver.

The invention discloses a method for controlling stony desertification through biological engineering. The method comprises a step of planting vetiveria zizanioides and paspalum natatum, wherein the vetiveria zizanioides and the paspalum natatum are intercropped; and the vetiveria zizanioides is planted along the outer rings of contour lines, and the paspalum natatum is planted among the vetiveria zizanioides. Because of the mutual tropism and the compatibility of the spatial and temporal distribution of roots, the two grasses are mutually beneficial, the nutrient resources can be utilized at high efficiency, the effective utilization of nitrogen and phosphorus is effectively improved, and the efficiency of improving the rocky desertification lands is greatly improved. The vetiveria zizanioides has nodule bacteria, so that wasteland hills can become terraced fields with fertile deep soil layers through the interception of the hedgerow of the vetiveria zizanioides layer by layer after the vetiveria zizanioides is continuously planted for multiple years; the paspalum natatum is in favor of accumulation of humus; after the lands are covered with the paspalum natatum, the effects of suppressing weed germination are realized; and the dead developed roots and the dead stems of the aboveground parts are decomposed in the soil to form the humus, so that the purposes of zero-ploughing, improving the physical and chemical properties of the soil and increasing the nutrients of the soil are realized without intertilling and weeding.

The invention discloses a preparation method of vetiveria zizanioides L. oil and an application of the vetiveria zizanioides L. oil in cigarettes. Vetiver roots are taken as raw materials and are subjected to smashing, organic solvent ultrasonic extraction, ethanol extraction and concentration to obtain the vetiver oil which is a specific spice for cigarettes. After being added to flue-cured tobacco type or mixed type cigarette tobaccos which are subjected to sensory evaluation, the specific spice for cigarettes has an important function of promoting the cigarette quality. The method disclosed by the invention is simple and convenient in process, simple in equipment, low in cost, slight in pollution and high in extraction rate; the component analysis shows that the total content of aroma components of a product is high, and the variety of the aroma components is rich.

The invention provides a simple and effective planting method for vetiver at a severe environment, which comprises the following steps: selecting a 1-2-year good-quality vetiver seed source 2 months before transplanting; retaining the length of the root system to be about 5cm and the length of the aboveground part to be 20cm to 25cm after the trimming; dividing a large cluster of vetiver seedlings into clusters with not less than 6-8 strains per cluster along easy-separation positions; putting the vetiver seedlings in plastic bags filled with fine clay substrates for cultivation until stems and leaves grow healthy and strong and fibrous roots are sufficiently developed; and hardening the seedlings for 1-2 times. Plastic films are adopted to cover the seedlings after the transplanting, and the films cannot be removed completely until external environmental conditions are improved and young leaves and new roots grow. In the invention, the situation that the planting of the vetiver is restricted by climatic factors (such as temperature and water content) or irrigation conditions of planting points for a long time is broken, and perennial construction is realized; moreover, the technological measure is simple; a normalized seedling mode is easy to form; the stable quality and the consistency of the seedlings are ensured; the survival rate is as high as over 95% in the high temperature summer season in large-area production and application; and the survival rate of anti-season planting also reaches over 85%.

The invention discloses a method for preparing a biological culture material by grinding and stirring before insulated fermentation. The method comprises steps as follows: S1, preparing the biological culture material: a material A contains cottonseed hull, bagasse, distiller's grains, rice bran, pine wood chips, soybean meal, palm kernel shells, decomposed pig manure, sucrose, light calcium carbonate, calcium superphosphate, potassium dihydrogen phosphate, magnesium sulfate and vitamin B; a material B contains spica prunellae slag, coconut shell powder, walnut shell powder, chestnut bracteal shell powder, lotus shell powder, banana stems and leaves, honeysuckle stems and leaves, radix angelicae dahuricae stalks, ginkgo leaves, garlic stalks, cassava stem bits, spartina anglica powder, ageratina adenophora, chrysopogon zizanioides, dicranopteris linearis, pennisetum purpureum, poplar leaves, ganoderma lucidum fruiting bodies, apple pomace, mushroom bran, xylose cinder and cyanobacteria; S2, the biological culture material prepared in the S1 is placed in a grinding and stirring device. A device for grinding and stirring before insulated fermentation is adopted for treatment, so that nutrients in a biological culture solution are easier to absorb, and the nutrients are richer.

The invention mainly belongs to the field of cultivation of an edible / medicinal fungi by utilizing Juncao in the fungus production and particularly relates to a method for cultivating the edible / medicinal fungi by utilizing the Juncao. A culture medium is prepared from the steps of taking dried Juncao as raw materials, adding urea, lime and a metal inorganic salt preparation, mixing the materials and performing composting fermentation, and the culture medium of the edible / medicinal fungi is prepared. The urea is added to control the carbon nitrogen ratio of the culture medium of the edible / medicinal fungi to be in a range of (30-40):1. The Juncao is one or any compositions of neyraudia reynaudiana, miscanthus floridulus, imperatorial, reed, chrysopogon zizanioides and saccharum arundinaceum. According to the method, the urea is added to adjust the carbon nitrogen ratio and enable the carbon nitrogen ratio to be (30-40):1. The carbon nitrogen ratio in the range is the best carbon nitrogen ratio needed by the edible / medicinal fungus entity in the growth and development period. The metal inorganic salt preparation is added in the method to meet the requirements of the edible / medicinal fungus for metallic elements.

The invention discloses health-maintaining and health snakegourd seeds. The health-maintaining and health snakegourd seeds are prepared from the following substances: snakegourd seeds, tea leaves, herba schizonepetae, anises, cinnamons, radix stemonae, polygala tenuifolia, liquorice roots, Chinese angelica, poria cocos, cortex dictamni, melia azedarach leaves, pseudo-ginsengs, gingko leaves, wolfberry fruits, radix polygoni multiflori, feather cockscomb seeds, walnut kernels, blueberries, hawthorn fruits, chrysopogon zizanioides, pelargonium graveolens, common jasmin orange and an additive; and the additive is prepared from the following substances: table salt, acesulfame, tartaric acid, alginate oligosaccharide, gentiobiose, multiplex vitamin of electrolyte and bee pollen extract. The snakegourd seeds prepared by the invention have the characteristics of complete nutrients, uniform taste, stable quality, faint scent and easiness of being cracked; the biting rate of insects including mosquitoes and flies and the like can be greatly reduced, and the eating safety of the product is improved; the health-maintaining and health snakegourd seeds have relatively good effects of invigorating the stomach and moistening the lung, and clearing away heat and toxin, and do not easily cause internal heat after being eaten for a long period; and furthermore, people do not easily have a fatigue feeling when people sit for a long time and eat the snakegourd seeds, so that the eating comfort is greatly improved, and the snakegourd seeds have very good health-maintaining and health effects.

The invention discloses insect-prevention crispy snakegourd seeds. The insect-prevention crispy snakegourd seeds are prepared from the following substances: snakegourd seeds, tea leaves, fineleaf schizonepeta herb, anises, radix stemonae, polygala tenuifolia, liquorice roots, Chinese angelica, poria cocos, cortex dictamni, melia azedarach leaves, streptocaulon griffithii hook, auricled hedyotis herb, chrysopogon zizanioides, pelargonium graveolens, cryptomeria japonica and an additive; and the additive is prepared from the following substances: table salt, cyclamate, citric acid, lycium barbarum polysaccharides, polyporus polysaccharides and multiplex vitamin of electrolyte. The snakegourd seeds prepared by the invention have the characteristics of complete nutrients, uniform taste, stable quality, delicate fragrance and easiness of cracking, and the biting rate of insects including mosquitoes, flies and the like can also be greatly reduced, so that the eating safety of the product is improved; furthermore, the snakegourd seeds have relatively good effects of invigorating the stomach and moistening the lung, maintaining beauty and keeping young and the like; people do not easily get internal heat after eating the seeds for a long period; and a preparation method of the insect-prevention crispy snakegourd seeds is simple and reasonable and a popularization value is very good.

The invention relates to the technical field of pest prevention and treatment, and aims to provide a trapping device with a composite insect sex pheromone lure and an application for the trapping device. Key points of a technical scheme of the invention are as follows: the trapping device comprises a trap body and the composite sex pheromone lure arranged in the trap body, wherein the composite sex pheromone lure comprises a shell and a composite sex pheromone carrier arranged in the shell; and the compound sex pheromone comprises the following components in parts by weight: 50 to 70 parts ofcis 11-octadecenal, 400 to 600 parts of cis 13-octadecenal, 50 to 70 parts of cis 11-octadecenol, 80 to 200 parts of cis 13-octadecenol, 40 to 50 parts of cis 11-hexadecenal, 20 to 60 parts of cis 9-hexadecenal, 60 to 80 parts of linalool, 40 to 60 parts of (E)-alpha-bergamotene, 100 to 200 parts of a vetiver grass extracting solution, 1 to 3 parts of an antioxidant and 2 to 5 parts of an anti-ultraviolet agent. The trapping device with the compound insect sex pheromone lure provided by the invention is applied to insect and pest prevention and treatment for rice borer, chilo suppressalis andcnaphalocrocis medinalis. The trapping device provided by the invention has the advantages of large prevention and treatment range, good prevention and treatment specificity and high prevention and treatment effects.

The invention relates to the technical field of essential oil, and particularly discloses vetiver grass compound essential oil and a preparation method thereof. The vetiver grass compound essential oil comprises, by mass, 70%-84% of vetiver grass essential oil, 2%-4% of jasmine flower essential oil, 2%-5% of lavender essential oil, 0.5%-0.8% of chamomile essential oil, 10%-15% of jojoba seed oil and 2%-5% of lemon essential oil. The compound essential oil is essential oil achieving natural extracting and free of chemical addition; the compound essential oil is obtained by compounding the vetiver grass essential oil with other essential oil, the fragrance is pleasant, the calming efficacy of vetiver grass itself is reserved, a great synergistic function among all kinds of the essential oil is exerted, and the sterilizing effect of the vetiver grass compound essential oil is very obvious.

The invention relates to a method for wintering and frost protection of vetiver grass in the north. According to the technical scheme, the method includes the following steps that (1), after the outdoor temperature is reduced below zero, cropland is subjected to permeable irrigation once; (2), the vetiver grass is cut till the vetiver grass is 3-10 cm away from the ground, and the rhizomes of thevetiver grass are not damaged; (3), the upper portion and the periphery of the vetiver grass are covered with charcoal, then comprehensive earthing is carried out, and the charcoal is completely covered with earth; (4), on the tenth day after the tomb sweeping day, the earth is removed, the charcoal is left in the cropland, complete watering is carried out once, and germination of the vetiver grass is promoted. The method has the advantages that by means of the method, the wintering survival rate of the vetiver grass can be increased to 95% or above, the wintering survival rate of cultivated seedlings in control treatment is zero, compared with a traditional charcoal material, the vetiver grass is subjected to frost protection treatment in a charcoal mode by means of the method, the biomass is increased to 8 tons per mu from 3 tons per mu after wintering, and the wintering survival rate and the biomass are both remarkably increased.

The invention discloses a vetiveria zizanioides and grass blanket combination based green slope protection method. The method comprises the steps of planting vetiveria zizanioides (1) on a side slope (3), laying the front end of a grass blanket (2) in an anchoring ditch (4), fixing the grass blanket (2) by using a fixing piece (5), then covering the ditch with soil and treading down the soil; laying the grass blanket (2) by expansion from top to bottom; and forming an opening by using a tool in a position where the vetiveria zizanioides (1) is met, sorting out the vetiveria zizanioides (1), arranging the grass blanket (2) flatly, and fixing the grass blanket (2) by using the fixing piece (5). According to the vetiveria zizanioides and grass blanket combination based green slope protection method, during the early stage, rainstorm is prevented from washing out the side slope and the unstable vetiveria zizanioides depending on an anti-washout function immediately generated after the grass blanket is laid; and during the later stage, with the degradation of the grass blanket, the projects such as the side slope and the like are protected from being washed out by atmospheric precipitation and surface runoff depending on a living protective layer formed by a dense and netty fibrous root system formed by gradual growth of the vetiveria zizanioides in the ground and a strong steam leaf hedge formed by gradual growth of the vetiveria zizanioides on the ground, thereby achieving the purposes of stabilizing a soil body, conserving water and soil, improving the environment and preventing disasters.

The invention discloses application of chrysopogon zizanioides in eutrophic water. Compared with the prior art, the invention has the advantages that: chrysopogon zizanioides root, stem and leaf extracting solution and chrysopogon zizanioides culture water have effect of inhibiting growth of Microcystis aeruginosa and mixed algae in Chaohu Lake water; and chrysopogon zizanioides roots and leaves have absorption and degradation effects on microcystin MC-LR. Due to the developed root system of the chrysopogon zizanioides and capacity of the chrysopogon zizanioides of growing in the eutrophic water, the chrysopogon zizanioides planted on shores of lakes or in floating beds can absorb nitrogen and phosphorus in water, improve water quality and protect dikes, also can effectively inhibit the algae and absorb cyanobacterial toxins, and has important application significance for protecting water environment.

The invention discloses a slope reinforcement and ecological repair technology taking iron tailings as aggregate. The slope reinforcement and ecological repair technology is characterized in that corematerials for slope reinforcement adopt the iron tailings and plant vetiver grass in company with reineckea carnea plants and are locked by anchor rods, and the multiple effects of sewage control, slope protection and greening are achieved; and the slope reinforcement and ecological repair technology comprises the following technological processes: (1) a slope surface is trimmed and a concrete retainer is constructed; (2) bottom layer base cloth and a PE anti-seepage film are laid; (3) construction materials are prepared; (4) construction is performed and PC drainpipes are laid; (5) the anchor rods are used for reinforcement; (6) the plants are planted; and (7) professional curing management is carried out. The iron tailings are utilized as the aggregate for the slope protection, and reineckea carnea is planted, so that an iron tailing resource utilization approach is explored, waste materials are recycled, land pollution can be reduced, and an ecological value is produced at the sametime; and the vetiver grass acts as a reinforcement material, so that the skid resistance of a side slope is improved greatly.

The invention provides a method for interplanting vetiver grass and barbadosnut, and belongs to the technical field of crop planting. The method comprises the following steps of culturing seedlings, preparing an interplanting land, interplanting, managing and protecting, harvesting seeds, and cutting forage grass, wherein the interplanting land is developed to be a strip-shaped flat land being 50cm in width; the central spacing between the strips is the line spacing and is 300cm; barbadosnut planting embankments are excavated based on the planting distance of 200cm; two vetiver grass planting cavities are excavated between barbadosnut seedlings based on the planting distance of 50cm; base fertilizer composed of compound fertilizer and calcium superphosphate in ratio of 1: 2-5 is applied during planting barbadosnut seedlings; 2 to 3 tillers are planted in each cavity of vetiver grass; additional fertilizer is applied 90 days after barbadosnut seedlings are fixed in planting; additional fertilizer is applied to vetiver grass about 45 days after vetiver grass grows; the additional fertilizers are the same as the base fertilizers. With the adoption of the method, the biodiesel can be developed, the utilization rate of idle lands between barbadosnut seedlings can be raised, the water and soil loss of a new barbadosnut planting land can be effectively controlled, 3,500 to 4,000kg fresh vetiver grass leaves can be averagely harvested from land per mu and used as forage grass, and thus more 700 to 800 Yuan economic income is brought.

The invention relates to a comprehensive green prevention and control method for rice field diseases and insect pests, and belongs to the technical field of agricultural disease and insect pest prevention. The comprehensive green prevention and control method for rice field diseases and insect pests comprises agricultural measures, biological prevention and control and green chemical prevention and control. The agricultural measures comprise the following steps that (1), rice-green crop rotation is carried out; (2), strong seedlings are bred; and (3), scientific fertilization is carried out. The biological prevention and control method comprises the following steps that (1), trichogramma is released in the field; (2), vetiver grass is planted for trapping; (3), flowering plants are planted; and (4) the pests are trapped and killed with a sex attractant. The green chemical prevention and control specifically comprises the step of selecting a green biological pesticide for prevention in the early stage of pest and disease damage. According to the comprehensive green prevention and control method for the rice field diseases and insect pests, systematic and comprehensive green prevention and control measures are adopted for different diseases and insect pests in the whole growth season of rice through agricultural measures, biological prevention and control, green chemicals and other methods, and the purpose of comprehensive green prevention and control of the rice field diseases and insect pests is achieved.

The present invention relates to the development of a novel clone of Vetiver [Vetveria zizaniodes (L) Nash. syn. Chrysopogon zizaniodes (L.) Roberty; family Poaceae], named ‘CIMAP-KHUS 40’ characterised by somatic chromosome number 4x=40, larger stomata, fast growing deep penetrating roots, and seed infertility disabling its spread as a weed. This clone has unique ISSR and RAPD profiles that serve as DNA-fingerprints, and is developed from a unique diploid plant (2n=20). The invention document details all the pertinent data relating to this clone, its biological features and usefulness, and the method of its development.

The invention provides a printing and dyeing wastewater treatment process. According to the process, a biomass filtering layer, a dinas filtering layer and an activated carbon filtering layer are adopted for filtering the water, and therefore a better effect is achieved. The developed root system of vetiver grass is utilized for treating the waste water, and the effect is good. Activated carbon can effectively absorb matter in the water to improve the quality of the filtered water, and therefore a better effect is achieved.

The invention discloses a swage purification treatment type artificial wetland system. The swage purification treatment type artificial wetland system comprises three sewage channels, wherein each sewage channel is sequentially provided with a subsurface flow wetland unit I, a stabilization pond unit and a subsurface flow wetland unit II along the flowing direction of sewage; the subsurface flow wetland unit I, the stabilization pond unit and the subsurface flow wetland unit II of each sewage channel are communicated in sequence; the swage purification treatment type artificial wetland systemis further provided with a surface flow wetland unit; the subsurface flow wetland units II of all the sewage channels are communicated with the surface flow wetland unit; one or more of cannas, chrysopogon zizanioides, reeds, cyperus papyrus and thalia dealbata are planted in the subsurface flow wetland unit I in each sewage channel; water lilies are planted in each stabilization pond unit; one ormore of the cannas, the chrysopogon zizanioides, the reeds, the cyperus papyrus and the thalia dealbata are planted in each subsurface flow wetland unit II; cane shoots and typha orientalis are planted in the surface flow wetland unit. According to the swage purification treatment type artificial wetland system, the sewage is effectively purified through a design of configuring and constructing the artificial wetland system and selecting plants.

The invention discloses a healthy rice cultivation method based on whole-process green pest control. The healthy rice cultivation method specifically comprises the following steps that S1, fertilizersare reduced for controlling pests, specifically, the base fertilizers are applied during ploughing, 1000 kg of sheep manure and 25-30 kg of controlled release compound fertilizers are applied per mu,and topdressing is not carried out any more in the whole process; S2, the variety is selected, and specifically, the high-quality resistant rice variety is selected; S3, seedling raising, machine transplanting and thin planting are carried out, specifically, centralized seedling raising is carried out through a seedling raising substrate tray stacking dark germination method on May 10th-15th; a biodegradable black film is covered while machine transplanting is carried out, and no herbicide is used in the whole later period; and S4, green prevention and control are applied, specifically, vetiver grass is planted; nectariferous plants are planted; and weeds are reserved on ridges. According to the healthy rice cultivation method, the problems of difficult weeding, high labor consumption andthe like are solved at one time by applying machine transplanting and black film grass shielding, and especially, the resistant weeds are weeded; the sheep manure and the controlled release fertilizers are applied at one time during ploughing, so that the labor cost is further reduced, and the soil quality and the rice quality are improved; and comprehensive measures such as wide-row planting, and green prevention and control technologies are applied, and no chemical pesticide is used in the whole process.

The invention discloses a vetiver substrate for culturing edible mushrooms, which can comprehensively replace main raw materials for culturing the edible mushrooms, such as floristic chestnuts, cotton seed hulls, wheat straws and the like, comprises a main component of vetiver and is prepared by the following steps: drying, crushing and soaking to wet with limewater the vetiver, adding accessories and other materials into the wet vetiver, filling the mixture into sterilizing bags for sterilization, and performing cooling, sterilization, inoculation, mushroom formation, color change, debaggingand fruiting management. The substrate radically develops a derived valuable channel for turning waste into wealth for the long-term development of the vetiver, and ecologically, reduces timber harvesting rate in response to the appeal of the state, simultaneously solves the problem that mushroom farmers cannot bear big bulge in the prices of the conventional substrates, such as the cotton seed hulls, and increases the yield of the edible mushrooms due to the close texture of the vetiver.

The invention discloses a plant management method for heavy metal contaminated soil, which comprises the following steps of: firstly, adding urea into heavy metal contaminated soil, and maintaining the water content of the soil to be 50-70%; and then, planting willows and chrysopogon zizanioides in the heavy metal contaminated soil, and spraying 24-epibrassinolide 15 days after planting, thus realizing soil heavy metal contamination remediation. According to the method, the requirements for water, fertilizer and photosynthesis in the plant growth process are comprehensively considered, plant growth and heavy metal enrichment are promoted and the stress resistance of plants is improved through water and fertilizer regulation and physiological enhancement measures, and plant growth is promoted and enrichment of plants on cadmium, arsenic and lead is increased at the same time through combined regulation and control of urea, brassinolide and water. The combined regulation and control technology is easy to operate, extremely low in cost and environmentally friendly, and has extremely high application and popularization value.

The invention discloses a Belgian hare feed. The Belgian hare feed is prepared from the following raw materials in parts by weight: 18-23 parts of soybean meal, 36-42 parts of corn flour, 14-17 partsof bran, 12-15 parts of middling, 9-15 parts of pine needle powder, 10-14 parts of powder of medicinal stone "maifanshi", 3-7 parts of spartina anglica, 2-9 parts of agrimonia pilosa, 5-10 parts of leymus chinensis, 4-8 parts of oxalis rubra, 1-6 parts of vetiver grass, 2-5 parts of radix polygonati officinalis, 2-4 parts of flying squirrel's droppings, 4-5 parts of cuttlefish bones, and 5-8 partsof probiotics. The invention further discloses a preparation method of the Belgian hare feed. The Belgian hare feed has the characteristics of being complete and rational in feed nutrient matching and good in palatability; moreover, the feed has increased feed utilization rate. In addition, the feed is also capable of reducing occurrence of tinea pedis and foot dermatitis of Belgian hares to a certain extent so as to ensure healthy and rapid growth of the Belgian hare.

The invention discloses a method for promoting germination of seeds of Pulsatilla chinensis. Before the seed is sowed, soaking treatment is performed by using plant extract, and the plant extract is prepared from the following raw materials of: in parts by weight, 7-12 parts of Cymbopogon citratus, 1-5 parts of pomegranate seeds, 1-5 parts of apple seeds, 2-6 parts of mango kernels and 2-6 parts of peach kernels. After the seeds are soaked in the extract which contains active ingredients including Chrysopogon zizanioides, Cymbopogon citratus, pomegranate seeds, apple seeds, mango kernels and peach kernels, the survival rate of germination of the seeds of Pulsatilla chinensis is improved greatly, and the method has easily available raw materials, low cost and easy promotion.

The invention discloses fresh and refreshing perfume which comprises, by weight percentage, 3%-5% of water, 1%-3% of glycerol, 8%-12% of essence, 0%-1% of pigment and the balance ethyl alcohol. The essence comprises, by the weight percentage accounting for the total quantity of the perfume, 3.5%-5% of Clementine flower essential oil, 2.5%-3.5% of orange essential oil, 1.5%-2% of iris tectorum root essential oil and 0.5%-1.5% of vetiver grass essential oil. The perfume has natural and fresh fragrance, has functions of emotion relieving and refreshing, and makes people fresh, cool and happy after being used.

The invention discloses a green high-yield rice, shrimp and crab planting and breeding method which comprises the following steps: (1) rice transplanting: after rice transplanting, reserving breeding ditches between rice fields; (2) putting young shrimps and young crabs: putting young shrimps and young crabs into the culture ditches; (3) feeding: feeding mixed feed and animal bait after the fry and the juvenile crabs are put; the compound feed contains ajuga ciliata flowers and pittosporum tobira fruits; fresh vetiver grass is placed on the peripheries of the ridges and the breeding ditches, and compound feed is placed on the vetiver grass; on the second day, the compound feed, eggs and dead insects placed around the ridges and the breeding ditches are used for breeding the crayfishes and the river crabs. The method utilizes the shrimps and crabs to remove weeds and part of pests in the rice field, promotes rice growth, improves rice yield and quality, utilizes the rice field to provide a good growth environment for the shrimps and crabs, and promotes growth of the shrimps and crabs. Meanwhile, main insect pests of rice can be prevented and treated, the use of pesticides is reduced, and the purposes of environment friendliness and high yield are achieved on the whole.