91 results about "Underground stem" patented technology

The invention relates to the technical field of traditional Chinese herbal medicine cultivation, in particular to a herbahouttuyniae cultivation method, which comprises the following steps of: 1) determining a planting time: planting seedlings at a period from the middle ten days and last ten days of September to the first ten days of November every year; 2) determining a planting mode: selecting high-stalk crops for interplanting; 3) preparing the seedlings: conducting asexual reproduction by using subterraneous stems of herbahouttuyniae as reproduction materials; 4) planting the seedlings: directly placing the seedlings on compartment surfaces and covering the compartment surfaces with rice straw or maize stalks after the seedlings are planted; 5) conducting field management: removing weed at the growth period of the herbahouttuyniae, removing ill herbahouttuyniae plants, weak herbahouttuyniae plants and non-herbahouttuyniae crops during weeding, and making sure that the herbahouttuyniae is not damaged; and during top dressing, using farm manure as main fertilizers and chemical fertilizers as auxiliary fertilizers, paying attention to reasonable drainage and irrigation and keeping soil wet at the entire growth period of the herbahouttuyniae; and 6) harvesting at a proper time and the like. By adopting the herbahouttuyniae cultivation method, the yield of the herbahouttuyniae is high, the damage by diseases and insects is reduced, the herbahouttuyniae diseases such as southern blight and zonate spot can be effectively prevented and controlled, and the yield of the herbahouttuyniae and the mass content of medicinal components in the herbahouttuyniae are improved to the utmost extent.

The present invention discloses a wet land species diversity habitat system construction method which comprises the steps of: deep water area construction; shallow water area construction, wherein the area with the water depth being less than 50 cm is 30%-50% of the total water area, and abundant flow state environment is built; sandy beach construction; swamp area construction including the steps of planting pieces of emerged plants having developed subterraneous stems in a low-lying swamp area which is waterlogged all year round, or appropriately accompanying plants such as softstem bulrush, cattail, water horsetail and marsh marigold and the like, or alternately planting sedge; and aquatic vegetation zone construction including the steps of coastwise arranging emerged plant zones and floating-leaved plant zones in a land and water interface hydro-fluctuation belt zone so as to form an isolating barrier, the depth into the water being at least 10 meters. According to the method, the biology habitat function of a wet land can be newly built or recovered, a good growth and propagation place is provided for wet land biology, and an appropriate ecological environment is provided for birds, amphibians, fishes and periphyton.

The invention discloses a method for quickly culturing stools of asparagus officinalis and promoting germination of tender stems and cultivating the same of the asparagus officinalis, and belongs to the technical field of plant cultivation. The method includes selecting asparagus officinalis varieties with short dormant periods, protecting roots of the asparagus officinalis to quickly cultivate seedlings of the asparagus officinalis by the aid of artificial substrates, transplanting the seedlings at the age of 70-90 days into cultivation tanks to cultivate the seedlings by the aid of soilless mixed substrates in a root restriction manner and cultivating healthy and strong underground stems of the annual asparagus officinalis; promoting spouting of the tender stems in greenhouses or sunlight greenhouses by means of artificial warming, producing green asparagus officinalis under natural light conditions in winters and springs or producing white asparagus officinalis in a mulching manner by the aid of sunshade films. The method has the advantages that the method is combined with technologies for storing the stools of the asparagus officinalis by means of low-temperature moisture retention and the like, the asparagus officinalis can be cultivated in a batched manner in different seasons in controllable environments, accordingly, the high-quality asparagus officinalis can be produced industrially and intensively, purposes of producing and supplying the asparagus officinalis throughout the year can be achieved, and the produced asparagus officinalis is excellent in commercial property, good in quality and free of pollution and has an excellent planting benefit.

The invention discloses a Bacillus subtilis WB8 capable of producing diosgenin, and belongs to the technical field of applied microbiology. The strain is separated from internal issues of subterraneous stems of a medicinal plant of Dioscorea zingiberensis wright, can synthesize and secrete a metabolin of a host plant, namely diosgenin, and has the preservation number of CCTCC (China Center For Type Culture Collection) NO:M2010271; and the strain is rod-like, has the size of 1-1.5*3-5 mu m, forms a single-chain sporocarp, releases endospore, has rough colony with grid bulges, forms pellicle through liquid fermentation, has rich foam, and can grow 16SrDNA core sequence 1542bp with the thermophilic temperature of between 30 and 35 DEG C, the pH of 6.0-9.0 and capacity of tolerating 9.0 percent NaCl, wherein the core sequence has the sequence number of HM210636. The strain liquid is fermented by a common culture medium for 48 to 60 hours, the chloroform extract of the fermentation liquor is the diosgenin, and the diosgenin has the activity of inhibiting pathogenic bacteria and resisting tumor cells. The strain provided by the invention can produce the diosgenin; and compared with the conventional process of extracting the diosgenin from yam plants, the method avoids the pollution of strong acid and yam byproducts on environment, and has potential industrial application prospect.

The invention discloses a method for improving inland saline alkali soil by virtue of interplanting jerusalem artichoke and oat. The method comprises the following steps of: (1) performing land leveling in autumn, applying organic fertilizers, desulfuration gypsum and a chemical modifier and performing winter irrigation; (2) applying chemical fertilizers in spring, and performing rotary tillage and rake leveling; (3) interplanting and seeding at an interval of three rows of jerusalem artichoke and 10 rows of oat, wherein seed tuber seeding is adopted for the jerusalem artichoke; the jerusalem artichoke plant quantity per mu is controlled at 3000 plants, and the oat seeding quantity is 10kg / mu; (4) cultivating and weeding as well as hilling during a period that the main stem of jerusalem artichoke has 7 to 8 leaves, and spraying a herbicide before sealing ridges of the oat so as to control field weeds; and (5) starting harvesting oat seeds at the stage of milky ripeness, and starting harvesting underground stem tuber of the jerusalem artichoke when leaves of the jerusalem artichoke start turning yellow in the middle ten days of October, wherein the straws of oat are utilized as silage, and the straws of jerusalem artichoke are utilized as feedstuff. According to the method, the complementation of advantage effects of the jerusalem artichoke and the oat is utilized, so that mutualism and joint yield increase are realized; the jerusalem artichoke and the oat adsorb saline matters in the soil simultaneously and fertilize the soil, so that the saline-alkali harms are reduced.

The invention discloses a method for restoring wet land and mud-flat soil polluted by high-concentration cesium. The method comprises the steps of transplanting 100 sections of subterraneous stems and roots of alternanthera philoxeroides for each square meter of wet land and mud-flat soil polluted, and keeping more than 80% of water holding capacity in soil fields; harvesting and intensively processing overground parts of the plants when the main stems are about 50cm; in harvesting, reserving 1-2 sections of stubbles so as to be beneficial to regeneration, and harvesting and intensively processing the plants again when the main stems of the seedlings are about 50cm; harvesting the plants for three times in one year, and harvesting for a plurality of years; and applying a compound fertilizer additionally in 15-20 days after the seedlings are transplanted or harvested. According to the method, the operation is simple, the management is convenient, the cost is low, and the restoring effect is good.

A peony tissue culture and rapid propagation method relates to Paeonialactiflora Pall seedlings which are rapidly propagated in short time through a tissue culture technical means to keep parent original excellent properties. The peony tissue culture and rapid propagation is realized by using peony subterraneous stems as explants through the stages of peony starting culture, cluster bud induction, cluster bud enrichment culture, test-tube plantlet rooting, test-tube plantlet domestication transplanting and the like. Therefore, the rapid propagation of the peony seedlings is realized under the conditions of manual control, massive test-tube plantlets are obtained, and the peony commercializing process is promoted.

The invention relates to a resistance-type winter bamboo shoot detector, which consists of a storage battery direct-current power supply circuit (8), a ground resistance detection circuit (9), a single-chip microcomputer control circuit (10), a nixie tube display circuit (11), a sound-light prompt circuit (12) and a shell (6), and also comprises a nixie tube display screen (1), a sound generator or a light emitter (2), a storage button (3), a display mode control button (4) and a power supply main switch (5) which are arranged on the shell (6). Positive and negative probes (7) are installed on the bottom surface of the shell. The detection method of the resistance-type winter bamboo shoot detector is realized through four steps: selection of time, climate, forestland and detection and digging points, pretreatment before detection and digging, detection, and digging. The detector has functions of automatic relevant digital processing and sound / light display, and is suitable for dark places and bamboo shoot growers who start work early, knock off late and suffer from unsound eyesight; the detection reliability is high, the problems that a great quantity of holes are dig in the forestland, underground stems are broken during digging, the bamboo shoot bodies are crushed during digging and the yield of bamboo shoots and bamboos is influenced as a result of untargeted digging are prevented from occurring, the bamboo shoot digging efficiency is high, the detector is simple to operate and the manufacturing cost is low.

The present invention relates to the topping and stem planting propagation of ramie and the seedling period management of low position ramified seedling in field. During stem planting propagation of ramie, the stem is topped while planting or while hardening-off after planting; or, the tender stem is cut into section and stem planted to grow seedling, and after the branches are formed, the growth point is eliminated and the low position ramified seedling is cultivated via secondary branching cultivation. The low position ramified seedling is planted deeply in field and promoted to grow independent root system via intertillage and earthing, so as to form new plant. The said propagation process can promote the growth of root system and rhizome and has obvious features of high yield, high quality and high efficiency.

The invention discloses an ecological cultivation method for houttuynia cordata and relates to the field of eco-agriculture and crop growing. The cultivation method comprises preparation of land for growing field crops, seed stem disinfection, non-woven geotextile laying, seed stem laying, seedling culture matrix covering and growth management of the land for growing the field crops and the like.The method of enabling non-woven geotextile to serve as the bottom, laying seed stems in the middle and performing seedling culture matrix covering is adopted to the cultivate houttuynia cordata seedstems, the growing environment of rhizomes is optimized, rapid growth of the rhizomes is promoted, so that the rhizomes are high in yield and quality, harm of weeds and soil insects is greatly reduced simultaneously, and environmental pollution caused by farmland pesticide applying is reduced. In addition, the ecological cultivation method further greatly reduces working intensity, saves working hours and effectively reduces production cost.

The invention discloses a tissue culture propagation method for alpinia japonica and belongs to the technical field of plant tissue culture. The issue culture propagation method comprises the following steps: S1) taking and disinfecting an explant; S2) performing adventitious bud induction; S3) performing adventitious buds proliferation; S4) performing rooting culture; S5) hardening seedlings andtransplanting, wherein in the S1), subterraneous stems of the alpinia japonica are taken as raw materials and are disinfected for three times so as to obtain explant-pink buds. The alpinia japonica cultured by the method disclosed by the invention is short in cycle, fast in propagation and high in survival rate; meanwhile, the tissue culture propagation method disclosed by the invention can also be applied to Hongfengshou alpinia japonica.

The invention provides a bio-organic fertilizer for planting a lotus root. The lotus root is a crop with relatively high economic value and nutritive value, but lotus root rot is frequently caused due to continuous cropping. The lotus root rot mainly occurs in the underground stem and root of the lotus root, causes the problem that leaves of the over-ground part turn yellow, or brown and rotten, or even causes withering of the over-ground part; the initial symptom of the underground part is not significant, and a vascular bundle close to the center turns brown after being opened, and gradually expands and extends to the newborn underground steam, or even the underground stem is rotted and blackened; the symptoms of the leaves of the over-ground part also appear; the leaves become light, and are dried up and curled, or even the leaves in the entire field are withered and yellow, and are in a burned state; hyphae and pink sticky substances appear from the underground stem of the infected plant; a part of underground stem displays water-soaking scabs; finally, a lotus whip, the infected stem and the infected root part display purple-brown scabs; the interior of the lotus whip turns brown; the infected stem shrinks in the longitudinal direction; and the lotus root dies. The firstly infected part of the lotus root rot is in an aquatic environment, and the disease is not easy to find, and is difficult to prevent and treat.

The present invention relates to tissue culture method of aquatic plant. The fast propagation process of Potarnogeton lucens includes the following steps: 1. taking the underground stem tip as the culture; 2. washing the culture; 3. inoculating to inducing culture medium to culture; 4. transferring to differentiating and proliferating culture medium to culture; 5. further culturing the separated buds in the differentiating and proliferating culture medium to obtain great amount of Potarnogeton lucens buds, or transferring the Potarnogeton lucens buds in rooting culture medium to induce rooting and to obtain Potarnogeton lucens seedling. The present invention has optimized recipes of inducing culture medium, differentiating and proliferating culture medium and rooting culture medium, and can propagate great amount of Potarnogeton lucens seedlings used for water body vegetation.

The invention discloses a method for obtaining an excellent clone through fiber bamboo subterraneous stem in-situ multiple mutagenesis. The method comprises the steps that a subterraneous stem of fiber bamboo is selected; an internal irradiation mutagenic agent is selected to be prepared into mutagenic agent solutions separately; a chemical mutagenic agent ethylmethane sulfonate is selected to beprepared into mutagenic agent solutions separately; a stainless steel continuous syringe is used for filling different segments of the selected subterraneous stem of the fiber bamboo with the internalirradiation mutagenic agent of different concentrations, and injection ports are sealed by non-sticking adhesive tapes; after 30-40 days, the stainless steel continuous syringe is used for filling the different segments of the selected subterraneous stem of the fiber bamboo with the chemical mutagenic agent solution, and the injection ports are sealed by non-sticking adhesive tapes; after earthing is performed for 60-90 days, different mutagenic buds on the segments, subjected to multiple treatment of the internal irradiation mutagenesis and mechanical mutagenesis, of the subterraneous stem are germinated into bamboo, and through screening and underground root dividing propagation, the clonal new germplasm or new species of the fiber bamboo with excellent traits.

The present invention discloses the quick breeding method of eel grass. The underground stem tip of eel grass as the cultured matter is cultured through disinfection, inducing culture, differentiation, proliferation and rooting culture to propagate eel grass quickly. Over 10,000 seedlings of eel grass may be cultured in one year with one underground stem tip of eel grass. The present invention makes it possible to provide great amount of eel grass seedlings for restoring water vegetation and decorating aquarium.

The invention provides special bio-organic fertilizer for lotus root planting. The lotus root is an economical crop with a high nutritive value, however, the lotus root rhizome rot is frequently caused due to continuous cropping and mainly happens to a subterraneous stem and roots of the lotus root, thereby causing yellowing, browning and rotting of leaves of the overground part, even withering of the overground part; the initial symptoms of the subterraneous stem are not remarkable, a vascular bundle in the center can be found browning when cut, the browning part gradually expands to a newly grown subterraneous stem, and rotting and blacking of the subterraneous stem are even caused; the leaves of the overground part then have the symptoms, the leaf color fades, the leaves are dried up and curled, and even leaves of the whole field get withered and yellow as if burnt by fire; the subterraneous stem of the diseased or infected plant has hyphae and pink viscous substances, and part of the stem has water-soaking scab; finally, stolon, diseased stems and diseased root parts all have purple brown scab, the stolon gets brown inside, the diseased stem longitudinally shrinks, and the lotus root necrotizes; and the part firstly infected by the lotus root rhizome rot is in an aquatic environment, and the disease cannot be easily found and is difficult to control.

The invention discloses a tropical water lily year-round cultivation method applicable to a subtropical region. According to the method, tropical water lilies are overwintered by a simple conservationand fertilization mode in an auxiliary manner, tropical water lily plants are pretreated, temperature, nutrients, ventilation, water level and the like are managed during overwintering conservation,overwintering obstacles of the tropical water lilies are solved, and subterraneous stem rotting and plant floating of the tropical water lilies are remarkably improved. According to the cultivation method, the tropical water lily plants are cultivated in independent small flowerpots, the flowerpots are placed on the ground far away from water, spaces are remarkably saved, the growth speed of the plants is more easily controlled, growing environment conditions are most economically, effectively, simply and easily controlled, slow growth of the tropical water lilies can be ensured, the tropicalwater lilies cannot enter a dormant period, year-round and multi-year cultivation of the tropical water lilies in the subtropical region is easily achieved, and the method can be applicable to varioustropical water lily varieties and has excellent generalization performance.

A weed herbicide is prepared by the following raw materials by weight parts: 9.5 % of fomesafen, 2.5 % of quizalofop p ethyl, 23 % of clomazone, 42 % of 1,1'-dimethyl 4,4'-dichloro bipyridine, and 40 % of glyphosin. The weed herbicide can control various annual weeds, is strong in killing effect on perennial weeds, while underground stems and roots of the perennial weeds can sprout new branches, and has no influence on lignified brown stems and trunks. The weed herbicide is suitable for controlling weeds in orchards, mulberry gardens, rubber plantations and forests, as well as weeds at non-cultivated lands, ridges and road sides, and can control weeds for corns, sugarcanes, soybeans, nursery gardens and other wide-row crops by directed sprays. The weed herbicide can be further used as an auxiliary medicament used after a defoliant for machine harvested crops. For an ideal defoliating effect is not achieved when a harvesting stage is approaching after the crops are applied with the defoliant, the weed herbicide can be used to rapidly kill green tissues of the crops, dehydrate and dry the green tissues, and do not influence short-period stacking and transporting of the harvested fruits after a mechanical harvesting.

The invention belongs to the technical field of rice cultivation and particularly relates to a hydroponic culture method for rice underground stems. The method mainly includes seedling acquisition andgrid hydroponic culture. Seedlings are obtained by germination of seeds or induced germination of stem-node dormant buds. The induced germination of the stem-node dormant buds is achieved by means ofthe method, wherein the stems (overground stems or underground stems) with nodes are placed in a treatment liquid containing 0.5-2 mg / L 6-BA (6-benzyl adenine) or KT (kinetin) and then placed in a shaker for shaking culture at 100-200 rpm / min for 1-3 days, the treatment liquid is replaced once a day, and the treatment is stopped after germination of the stem-node buds; after the seedlings grow toa 3-5 leaf stage, hydroponic culture is started, and a metal mesh and a sponge block are adopted as a hydroponic fixing device; the seedlings are clamped by using the sponge block and then loaded into grids of the metal mesh to be perpendicular to the liquid surface; a 0.5* nutrient solution of the international rice research institute is adopted for recovering culture for 5-10 days and then replaced with a 1* nutrient solution for continuous culture. Through a grid fixing method, the advantages of convenient observation and easy control over experimental conditions of the hydroponic cultureare fully utilized, and a research is conducted on the development of the rice underground stems.

The invention discloses an ecological restoration method for treating a eutrophic water body by utilizing Nuphar sinensis, which is particularly applied to ecological restoration of city park lakes with landscape requirement on a water area and large-scale eutrophicated shallow water lake lakeside zones. The method comprises the following steps of: adopting the Nuphar sinensis as a pioneer species for restoring aquatic vegetation, adopting a subterraneous stem propagation body or seedling vegetative propagation manner in shallow water areas and / or river bank zones, and field planting the Nuphar sinensis in a patchiness distribution manner; in the next year, utilizing a 'centripetal radiation pressure seedling method' to realize rapid expansion of plant groupings so as to form an annular plant grouping; and planting submerged plants in a restoration area, so that the plant cover degree reaches more than 60 percent finally. Compared with a traditional plant material restoration technology, the method has the characteristics of excellent water quality purification effect, simple management and high economic value, has the advantages of ecological features, sightseeing performance and economical efficiency, and has wide popularization and application prospect.

The invention provides a biological organic fertilizer for planting lotus roots. The lotus roots are crops with a high economic and nutrient value, but the rot disease of the lotus roots is often caused due to continuous cropping. The rot disease of the lotus roots is mainly generated at the subterranean stems and the roots of the lotus roots, so that leaves of the overground parts of the lotus roots become yellow, brown and decomposed, and even the overground parts are sapless. The initial symptom of the underground stems is not obvious, when the underground stems are split, the vascular bundles near the center of the underground stems become brown, newborn underground stems gradually become brown, and even the underground stems are decomposed and become black. Then, the the leaves of the overground parts have symptoms of the disease, the color of the leaves become light, the leaves are withered and curly, and even the leaves of the lotus roots in the whole field are withered and yellow and same like being burnt by fire. Mycelium and pink glutinous substances appear on the underground stems of diseased plants, and partial underground stems of the diseased plants present water-soaking scabs. Finally, the diseased parts of lotus whips, diseased stems and roots all present purple brown disease scabs, the inner parts of the lotus whips become brown, the diseased stems are longitudinally creased, and the lotus roots are necrotized. The first part, infected by rot disease, of the lotus roots is in aquatic environment, so that the disease is not easy to find and is difficult to prevent and treat.

The present invention discloses the quick breeding method of royal waterplatter. The stem tip of royal waterplatter as the cultured matter is cultured through disinfection, inducing culture, differentiation, proliferation and rooting culture to propagate royal waterplatter quickly. Over 10,000 seedlings of royal waterplatter may be cultured in one year with one underground stem tip of royal waterplatter. The present invention makes it possible to provide great amount of royal waterplatter seedlings for decorating water scenes.

The invention discloses a bamboo forest directional cultivation method aiming at utilization of raw bamboo materials of tea rods. The method comprises the steps that firstly, a tea rod bamboo forest is regulated and controlled, one-year-old and two-year-old bamboo plants are not selectively cut, three-year-old and four-year-old bamboo plants are properly and selectively cut, and five-year-old bamboo plants are completely cut, so that the bamboo plants of the tea rod bamboo forest are evenly distributed, the density is controlled to be 25000-40000 plants / hectare, and the average breast diameteris controlled to be 1.5-2.5 cm; then, the bamboo plants are subjected to branch drawing and leaf threshing for 5-8 discs, so that the height under branches is increased, bamboo shoots with the grounddiameter ranging from 1.5 cm to 2.5 cm are reserved, and the bamboo shoots with other ground diameters are dug; and then the space structure of the underground stems of the tea pole bamboo forest areregulated and controlled by cutting old roots and alternately reclaiming in a strip-shaped and groove-shaped manner, so as to realize directional cultivation of the tea pole bamboo forest. By means of the method, the yield of the raw bamboo in the tea pole bamboo forest can be increased, sustainable development can be achieved, and higher economic benefits are achieved.

The invention discloses a multipurpose medium for artificial cultivation of crocus sativus L. and a culture method of the medium and belongs to the technical field of artificial cultivation. The multipurpose medium for artificial cultivation of the crocus sativus L. comprises sandy soil, clay, a soil conditioning agent, rotted leaves, water, plant ash, superphosphate and vermiculite. Through the multipurpose medium, the yield of the crocus sativus L. can be effectively increased, compared with non-medium planting, the fresh yield can be increased by 45% or above, the medium contains rich organic matter and multiple kinds of microelements, is soft in structure and achieves moisture and fertilizer conservation, and in combination with a cultivation technology method of artificial cultivationof the crocus sativus L., the technical problems are solved that during existing artificial cultivation of the crocus sativus L., the crocus sativus L. grows up difficultly, and the yield is low; thelabor efficiency of weeding can be obviously improved, during harvesting, the subterranean stems are not easily damaged, the damage rate of the subterranean stems of the crocus sativus L. is reduced,and the quality of the crocus sativus L. is improved; the crocus sativus L. is not easily in contact with medicine hormones in the growth process, diseases hardly occur, and the excellence rate is improved.

The invention discloses a method for planting zingiber striolatum diels. The method comprises a first step of selecting land: selecting a low mountain, using rhizomes for reproduction, digging fixed planting holes from the middle ten days and the last ten days of November to February next year, placing the rhizomes in a fixed planting device, wherein the fixed planting device is a hollow ellipsoidal elastic device with the lower portion provided with a plurality of vertical strip holes and a mixture of rabbi dung organic fertilizer and expanded perlite with a thickness of 0.3-0.5 m is placed in the fixed planting device, placing the rhizomes on the upper portion of the fixed planting device, making buds upward, and pouring clear water mature with a concentration of 5-8% after earthing; performing topdressing and irrigation, and performing pest control: during a pest damage period, mixing water with essential oil containing volatile gas and extracted from zingiber striolatum diels, and then spraying the solution on a zingiber striolatum diels plant; and a fifth step of performing harvesting: wherein edible parts of zingiber striolatum diels include tender shoots, flower tendrils and the rhizomes and are different at harvesting periods. Zingiber striolatum diels is planted in a mode of performing planting in the fixed planting device and taking gas of zingiber striolatum diels to expel pests, so as to solve a problem that in the prior art, the yield is low when zingiber striolatum diels is planted at the position of a low mountain.

The invention discloses a rapid nonsexual systematic mating of Herba Epimedii, which is performed as following: A, forming ridge in greenhouse or plastics greenhouse and paving muck soil with thickness of 10-15cm;B, choosing plants in good health and free from disease, removing overground leaves, taking underground stem part, cutting at the position capable of tillering bud into pieces of 2-3cm with at least on tillering oculus to obtain seedlings; C, soaking in clean water for 1-2h, seeding with spacing in the rows and between the rows of 5cmX5cm-10cmX10cm and sowing depth of 5-8cm, covering soil, irrigating rooting water, and overlaying film; D, ripping away the film after sprouting, watering, weeding, and transplanting after 2-4 months. The invention can maintain properties of the plants. Progenitive first filial generation of Herba Epimedii has stable properties and high survival rate. The invention has simple method and wide application, and is suitable for popularization in countryside.

The invention belongs to the technical field of culture of cystoathyrium chinense and discloses a culture method of cystoathyrium chinense through sporophyte propagation. Underground stems of cystoathyrium chinense are soaked in a washing powder solution with the concentration of 3-5 g / mL and treated with 75% ethanol and 0.1% mercury bichloride solution, disinfection is convenient, and damage to buds is low. A culture medium with the pH value of 5.8-6.0 is used for primary culture on the buds under 2,000-2,100 lx, the buds are promoted to rapidly germinate into GGBs (green globular bodies), the GGBs can be used for subinoculation and propagation. Compared with components of a strong seedling culture medium and a proliferation culture medium, gibberellin is added, the proportion of all components are adjusted, so that the strong seedling effect can be maximized. The method is adopted for hardening of seedlings, and the survival rate of cystoathyrium chinense seedlings can reach 80% or above.

The invention relates to the technical field of seed breeding of carex dispalata. In a wild state, carex dispalata generates new plants mainly depending on extension of subterraneous stems; when carex dispalata are planted in landscape engineering, a manner of plant-division cultivation by digging the subterraneous stems is mainly adopted, therefore, the planting manner is high in death rate, vacant regions after death need to be filled with seedlings in the later period, and the cost of the engineering is increased; for the technical problem, the invention discloses a seed collecting and pregermination method of carex dispalata. The method mainly comprises the following steps: selection of carex dispalata plants and collection of seeds; cleaning, airing and soaking of the seeds; cold sand storage of the seeds; pregermination by stirring. The method disclosed by the invention is simple and easy in operation and low in cost, the seeds of carex dispalata processed by adopting the method can germinate about five days after seeding, and the survival rate of the seeds after 28 days is over 90%, therefore, the germination rate and the survival rate of the seeds can be greatly improved, and seedlings come out evenly and are good in growth.

The invention discloses a method for increasing emergence rates of seedlings of single-cropping zizania aquatica. The method includes selecting varieties for seedling fields; carrying out planting at earlier stages; growing seedlings from zizania aquatica tubes; growing seedlings from underground stems of zizania aquatica. The method for increasing the emergence rates of the seedlings of the single-cropping zizania aquatica has the advantages that the method is easy and convenient to implement, the seedlings can be grown from the zizania aquatica tubes and the underground stems of the zizania aquatica, accordingly, the emergence rates of single-cropping zizania aquatica seedling production bases can be increased, the emergence rates of the seedlings of the single-cropping zizania aquatica can be doubled, seedling demand pressures due to annual double-cropping modes of the single-cropping zizania aquatica can be relieved, and good service effects can be realized.

An artemisia selengensis defoliating harvester comprises a handle, a box, a leaf collecting groove, a divider, a storage frame and wheels. A defoliating mechanism is arranged at one end of the leaf collecting groove, the box is arranged at the other end of the leaf collecting groove, the storage frame is arranged at the other end of the box, the handle is arranged at the surface, the wheels are arranged at the bottom faces of the box and the leaf collecting groove, and a harvesting mechanism is arranged in the box; and the defoliating mechanism is arranged at one end of the box, a conveying mechanism is arranged at the other end of the box, the handle and an exhaust fan are arranged at the surface of the box, and the wheels are arranged at the bottoms of the box and the defoliating mechanism. According to the artemisia selengensis defoliating harvester, labor cost is reduced, efficiency is high, a cutting edge is sharp when artemisia selengensis is harvested, wounds at the cut portionsare small, the phenomenon that roots of the harvested artemisia selengensis are rotted is prevented, fallen leaves on the ground can be rapidly removed after the artemisia selengensis is harvested, and nutrient intake and photosynthesis of subterranean stems are prevented from being hindered.