380results about How to "Improve germination rate" patented technology

Provided is a bletilla striata rapid propagation seedling cultivation method. Fermented bark and a mixture of humus and river sand serve as a base material, the base material is laid on a seedling cultivation vessel, 1-2 layers of gauze is laid on the base material, water is poured to soak the base material, bletilla striata seeds are sown on the gauze, a transparent plastic film is utilized to wrap the seedling cultivation vessel, and the seedling cultivation vessel is placed in an artificial intelligent cultivation box to grow seedlings and strengthen the seedlings. The bletilla striata rapid propagation seedling cultivation method breaks through a traditional corm planting and cultivation mode of bletilla striata, the quality degeneration problem existing in vegetative propagation is resolved, and a new path is created for sexual propagation seedling cultivation of the bletilla striata genus of orchidaceae. The bletilla striata rapid propagation seedling cultivation method is simple in operation, low in cost and short in seedling cultivation period; the germination rate reaches up to 90%, the planting percent is 70%-80%, and good practical popularization significance is provided for large-scale propagation seedling cultivation of the bletilla striata.

The invention relates to a macrobranchium rosenbergii larvae breeding method, and relates to the technical field of aquaculture. The invention provides a macrobranchium rosenbergii breeding method with the advantages of high larvae output rate, high survival rate, high raising nutrition, uniform larvae individual size, clean body surface, no damage or deformity, and increased economic benefit. The method provided by the invention has the advantages of simple operation, low cost, significant effect, and significant economic and social benefits.

The invention discloses a preparation method for artificial seeds of dendrobium candidum. The method comprises: inducing dendrobium candidum stems in a culture medium so as to obtain protocorms, which are then subjected to proliferation culture, and transferring the protocorms into an MS culture solution with 0.5mg/L of ABA (abscisic acid) for shaking culture, changing the culture solution every 10d, after 30d, selecting a protocorm as an embedding propagule, making artificial seeds by an instillation method, taking the MS culture medium, 4mg/L of 6-BA, 0.4mg/L of NAA, 2% of sodium alginate and 0.2% of carbendazim to prepare basic artificial endosperm, adding 2% of chitosan and 5.0-10% of nanometer TiO2 into sodium alginate so as to form an artificial seed coat matrix, and carrying out research on germination and storage of artificial seeds. The preparation method of the invention can enhance seed germination rate and make the seeds convenient for storage and transportation. Adding of a special material into artificial endosperm or an artificial seed coat in the invention can promote germination of the artificial seeds or prolong storage of the artificial seeds.

The invention relates to a cultivation method of alfalfa. The cultivation method includes the steps: in the land selection step, a plot with deep, thick and loose soil and less prone to waterlogging is selected, the plot is tilled, crop rotation is performed, gramineous crops or root crops are planted as previous crops as required, and continuous cropping of leguminous crops as precious crops is forbidden; in the land preparation step, 28cm deep cultivation is performed after the previous crops are harvested, the surface is leveled in time, weeds are removed, raking, leveling and compacting are performed, and moisture preservation and water storage are performed; in the base fertilizer application step, organic fertilizer special for alfalfa is used, and 20kg-25kg of the organic fertilizer is applied per mu as base fertilizer; in the variety selection step, AiFeiNiTe alfalfa is selected; in the seed treatment step, seeds are cleaned and aired for 2-3 days before sowing and are then soaked in seed soaking agent and subjected to nodule bacteria inoculation.

The invention discloses a crossbreeding and seedling rapid propagation method of paphiopedilum pacific shamrock. The method comprises the following steps: carrying out artificial pollination, selecting the ripeness of the seeds, enabling the seeds to germinate to form protocorms, and enabling protocorms to differentiate into plantlets, carrying out strong seedling culture, acclimatization and transplantation, and carrying out cultivation management on the transplanted seedlings. The method has the advantages of high hybridization setting percentage, high germination rate of hybrid seeds, low browning rate of protocorms, rapidness in seedling forming, good quality of seedlings, strong operability and high application value, the conventional protocorm subculture proliferation stage is eliminated, the breeding and production cycles are effectively shortened, the bud mutation probability and the production cost are reduced, and important significance is provided for enriching the varieties of paphiopedilum, and improving the quality of paphiopedilum.

The invention relates to a production method for realizing double-cropping fruiting of grapes. The production method specifically comprises the steps of carrying out pruning on grape fruit trees and dormancy breaking and bud forcing on branch buds in autumn and winter periods every year, and thus promoting the grapes to germinate, bloom and fruit earlier; appropriately planning to prune the grape fruit trees of which first-cropping fruit harvesting is completed and carrying out secondary bud forcing and flower forcing, and thus promoting the grape fruit trees to realize secondary flowering and fruiting. A dormancy breaking and bud forcing agent is formed by hydrogen cyanamide water solution; during production and management of the grape fruit trees, fertilizer is applied according to a conventional method, besides, novel fertilizer-organic water soluble fertilizer which is formed by pretty red flowers and a kalium-calcium pack is additionally applied; optimized selection, matching and scientific application are carried out on how to select and apply leaf fertilizer. The production method disclosed by the invention has the beneficial effects that high yield, stable yield and good quality of the one year-two harvest grapes can be realized.

The invention discloses an electric rice cooker used for brown rice germination and cooking and a control method thereof. The electric rice cooker comprises a body, a cover and an inner cooker, wherein, the body is provided with a heating device used for heating the electric rice cooker and a control device used for controlling the power supply and power failure of the heating device, in the process of brown rice germination, the control device provides power to the heating device continuously or discontinuously; the heating device heats the electric rice cooker continuously or discontinuously, so that the inner temperature of the electric rice cooker fluctuates within the range of basic temperature Tn suitable for brown rice germination, the fluctuating temperature is tn; during the germination process, an automatic steam discharge device is in an open state; the heating device heats continuously or discontinuously to the basic temperature Tn suitable for brown rice germination and Tn is 30-40 DEG C, so that the temperature is controlled in a range from Tn-tn to Tn+tn, tn is 1-5 DEG C. By using the electric rice cooker and the control method of the invention, germinated brown rice with high nutritive value can be cooked without lengthening time.

The present invention discloses a method for raising germination percentage of sweet iris seeds. Said method includes the following steps: firstly, soaking sweet iris seeds in auxin, gibberellin or potassium nitrate solution, then taking out the sweet iris seeds from said solution and placing the sweet iris seeds into a day-and-night temperature variable and dark environment to make germination. At day, it uses 2.5-30deg.C temperature to make treatment for 6-12hr, and at night it uses 15-20deg.C temperature to make treatment for 12-18hr.

The invention provides a spinach seed germination accelerating method comprising seed selection, seed soaking, refrigerator temperature-varying seed storage, rare earth seed dressing, and finally germination accelerating. The germination accelerating method greatly improves the germination rate of spinach seeds, and shortens the germination time; and the content of selenium, molybdenum and other trace elements in spinach is high, and the spinach planted by the germination accelerating method has high content of selenium and other trace elements.

The invention discloses a plantation method of selenium-rich edible canna. The method comprises the following steps: establishing a water irrigation and drainage system; applying mineral powder and a selenium-rich base fertilizer; carrying out breeding edible canna cutting and breeding; spreading fine sands and wood chips before sowing; digging plantation pits, and planting the breeding edible canna; and sprinkling a selenium-rich nutrient solution when the height of edible canna seedlings reaches 10-15 cm, and applying a selenium-rich fertilizer after the edible canna seedlings are germinated for 30-35 d. Scientific cultivation management is carried out, the selenium mineral powder and the selenium-rich base fertilizer are applied to the plantation field in the soil preparation process, and the selenium-rich nutrient solution and the selenium-rich fertilizer are applied in the plantation process, so harvested edible canna stem tubers have high output, are rich in the selenium element, and have extremely high nutrition values and economic values.

The invention discloses a method for obtaining virus-free seedlings of pure cymbidium efficiently. The method includes: selecting pure cymbidium capsules with good living conditions, implanting the capsules in an MF solid culture medium to sprout after disinfection treatment of 15% hydrogen peroxide, 0.1% mercury bichloride and 75% ethyl alcohol, scissoring bud tips, stem tips or root tips of pure cymbidium seedlings after seeds sprout and grow to form 2 tender leaves, putting the bud tips, the stem tips or the root tips of the pure cymbidium seedlings in a induction protocorm culture medium MY after disinfection treatment to perform dedifferentiation culture to form protocorms, taking out the protocorms, cutting the protocorms into 1mm <2> blocks, implanting the blocks in a protocorm redifferentiation induction medium MZ to form buds and novel roots through induction, opening aseptic bottle caps of plant tissue culture bottles when plants of the seedlings grow up to 4cm-6cm and each seedling has 5-6 roots, taking the bottles to an illumination culture frame to be cultured, and performing habituated culture gradually. According to the method, success rate of pure cymbidium seedling culture can be improved, breeding period can be shortened greatly, and virus-free pure cymbidium seedlings can be obtained.

The invention discloses an olive container nursery method. The olive container nursery method is achieved through following steps: 1) preprocessing seeds: storing olive seeds in a freezing room for 3-4 moths; when planting the seeds, fetching out the seeds from the freezing room, and firstly, soaking the seeds in 75% alcohol solution for 0.5-1.0min, then, using 0.1% mercury bichloride solution to sterilize the seeds for 10-15min, and finally soaking the seeds in aseptic warm water for 40-45 hours; then, mixing the seeds with wet sand evenly so as to obtain a mixture, placing the mixture in a brown paper packing box with holes, and accelerating germination on a seedbed; 2) sowing the seeds: placing the primed seeds 30% in opening rate into a ventilated and permeable seedling nursing container, sequentially covering the primed seeds with 2cm fine sand and 1cm selenium-rich soil after sowing the seeds, and then using a black film to cover the seeds for heat preservation; 3) performing seedling management: sprouting the seeds 25-28 days after seed sowing, spraying 0.8-1.2% Bordeaux liquid once every 7-8 days after sprouting, and performing seedling hardening and transplanting when four pairs of main leaves are grown on each seedling. The olive container nursery method has the advantages of being high in emergence rate, high in breeding efficiency, high in seedling quality and the like. Compared with an existing container nursery technology, the olive container nursery method improves integrated quality of the seedlings by more than 5%.

The invention discloses a soil conditioner applied to mine ecological restoration in an arid region as well as preparation and application methods thereof. The soil conditioner is prepared from the following raw materials: potassium polyacrylate, decomposed coal, biological potassium fulvate of sugar factory byproducts, natural zeolite powder and a compound microbial agent. The preparation method comprises the following steps: uniformly mixing the potassium polyacrylate, decomposed coal, biological potassium fulvate and natural zeolite powder in parts by weight; and adding water and diluting the compound microbial agent according to a ratio of 1:100, uniformly spraying, uniformly mixing again, and balancing for 10-20 days. The soil conditioner can be used for soil replacement covering engineering for repairing flat slope surface or slope surface with gentle slope in mining area and also can be used for ecological bag slope repair engineering for repairing soil sediment slope surface in mining area with steep slope and poor soil conditions. The soil conditioner can achieve the effects of obviously improving the plant emergence rate, improving water and nutrient conditions, improving physical and chemical properties of soil, increasing soil activity, accelerating the soil-ripening process and promoting vegetation growth.

The invention provides a method for improving the germination rate of wild peach seeds. The method comprises the following steps: (1) intensively collecting mature fresh wild peach seeds and putting the seeds under the sun to be dried; storing the dried wild peach seeds in a fresh-keeping storehouse; (2) immersing the wild peach seeds for 10 days by using a germination accelerating solution at the day which is 10 days before seeding; fishing out the seeds and washing; then drying; (3) selecting micro-acidity soil with good water discharging property, deep soil layer and the pH (Potential of Hydrogen) of 5.5-6.5; blending a mixture of yellow sand and soil into a deeply-overturned land; sorting the land into one row with the size of 1.2m; and (4) uniformly arraying the immersed wild peach seeds on the sorted land and covering one layer of a humus layer on the arrayed wild peach seeds, wherein the thickness of the humus layer is 1-3cm; and keeping the suitable humidity of the soil to wait for the germination of the seeds. The method provided by the invention is simple and feasible; compared with a traditional seeding method, the germination rate can be up to more than 90%; the germination rate of the wild peach seeds is greatly improved, the planting cost is reduced and the economic benefits are improved.

The invention discloses a method for increasing the seedling rate and seedling survival rate of the endangered plant Tibetan paeonia ludlowii and relates to a method for increasing the seedling rate and seedling survival rate of Tibetan paeonia ludlowii. The invention aims at solving the problems of low seedling rate and seedling survival rate and long seedling culture time of the endangered horticultural plant Tibetan paeonia ludlowii. The method comprises the following steps: (I) disinfecting the collected seeds of paeonia ludlowii; (II) preparing MS medium mother liquid; (III) preparing a paeonia ludlowii induction medium; (IV) stripping the peel and endosperm of the paeonia ludlowii seeds, separating out the embryo and inoculating to the surface of the paeonia ludlowii induction medium; (V) culturing in an incubator to obtain aseptic seedlings; (VI) preparing a rooting medium; (VII) inoculating the aseptic seedlings into the rooting medium for rooting culture; and (VIII) acclimatizing and transplanting the aseptic seedlings after the rooting culture. The method disclosed by the invention is applied to the field of Tibetan endangered plant resource protection.

The invention discloses a breeding method for promoting drought resistance of peony and belongs to the technical field of agricultural planting. According to the invention, the drought-resisting breeding for the peony is realized according to the three steps: 1) ageing treatment, 2) mixing a drought-resisting agent with seeds, and 3) planting. According to the invention, the ageing treatment is combined with the drought-resisting agent, so that the germination rate of the seeds is effectively increased, the drought resistance of the seeds is promoted, and the mu yield of the peony is increased. According to the invention, the average mu yield of the peony is 238-246kg and is 16.7-20.6% higher than the mu yield 204kg of the conventional planting, the emergence rate of the seeds is 94-98%, the germination rate is 95.4-97.9%, the survival rate of the seedlings is 92.8-96.4%, the emerging time is 26-31 days, the determined organic selenium content of the peony seeds reaches up to 0.32-0.37mg/kg, and the economical benefit is remarkable.

The invention discloses a method and a special seed soaking agent for promoting germination of cucumber seeds under the condition of salt stress. The seed soaking agent comprises calcium chloride, L-glutamic acid and water, wherein the molar concentration ratio of the calcium chloride to the L-glutamic acid is 0.5:5-20, preferably 0.5:10. The method for promoting germination of cucumber seeds under the condition of salt stress comprises the step that the seed soaking agent for promoting germination of cucumber seeds under the condition of salt stress is used to soak the cucumber seeds before seeding. The method for promoting germination of cucumber seeds under the condition of salt stress can obviously improve the germination ratio of the cucumber seeds under the condition of salt stress, and the germination ratio is more than 45%. The method is very favorable for improving the utilization ratio of resources and provides the guarantee for vegetable production in salinized areas.

The invention discloses a method for planting peony. The method comprises a step (1) of seedling culture, a step (2) of seedling transplantation and a step (3) of management after fixed plantation. According to the method, under the reasonable matching effect of each step, the seedling rate of seeds can reach 90% or above, peony grows vigorously, the flowering phase of the peony can be prolonged by 10-15 days, the per mu yield of the peony can be improved by 25-30%, the content of iron element and potassium element in the peony can be improved by about 20%, the content of paeonol in moutan bark can be improved by about 30%, and the cultivated peony is plump and bright-colored and has very good sight enjoying and medicinal values.

The invention discloses a three-dimensional one-cultivation-two-harvest high-yield brewing glutinous sorghum cultivation method, which includes sorghum variety choosing, soil preparation, fertilization, seedling growing, transplantation, disease and insect pest control, regenerated sorghum germination promotion, fertilization, disease and insect pest control and other steps. By choosing a glutinous sorghum variety suitable for producing Maotai-flavor liquor, adopting plastic hole plate seedling growing method to grow seedlings, transplanting sorghum seedlings according to double triangles, applying seedling promoter and jointing fertilizer early and adopting other methods, the yield of sorghum per mu is increased by more than 200 kilograms on average and the income per mu is increased by nearly RMB 1000 yuan, so the method can bring remarkable economic benefit in comparison with conventional sorghum cultivation methods.

The invention relates to an ecological slope protection method facilitating slope plant growth. The ecological slope protection method facilitating slope plant growth comprises the steps that non-woven fabrics are buried in soil on the top of a soil slope, grass planting grids are laid on the non-woven fabrics, the grass planting grids are backfilled with garden soil, and Bermuda grass seeds are sowed; on the soil slope, concaved ditches are formed at intervals in the direction parallel to the slope bottom side, water leading channels are formed at intervals in the direction perpendicular to the slope bottom side, and the water leading channels are filled with non-woven fabric bags; and on the soil slope, the non-woven fabrics are laid, a latticed fabric is arranged on the non-woven fabrics in a covering manner, the garden soil is scattered to the latticed fabric, and shrub seeds and herbaceous flower seeds are sowed in the garden soil at intervals. According to the ecological slope protection method facilitating slope plant growth, rainwater can be retained on the slope soil to the maximum extent, soil humidity keeping time is relatively long, a favorable environment is provided for sprouting and growing of plants, the seeds sowed through the ecological slope protection method are high in emergence rate, relatively quick in sprouting and tidy in growth degree, and formation ofa plant landscape is facilitated.

The present invention provides a cultivating method for pecans, comprising the following steps of: (1) cultivation of rootstock seedlings; (2) management of the rootstock seedlings before grafting; (3) grafting time: grafting is performed when the daily average temperature is 25-30 DEG C and before the rainy season comes; (4) the grafting method: collecting thriving ligneous or semi-ligneous branches born in the current year as scion branches, removing compound leaves, keeping petioles which are 2-3 cm long, and soaking the petioles in water for 6-12 h; transversely cutting the upper and lower parts of a grafting bud, and vertically cutting the two sides of the grafting bud, so that the transverse cuttings are connected to the vertical cuttings, and the bud slice is slightly peeled; selecting a smooth surface 12-17 cm above the ground on the rootstock, peeling a piece of bark as large as the bud slice off the rootstock by using the same method, rapidly attaching the grafting bud to the place where the bark is peeled off, binding the grafting bud and the rootstock tight from bottom to top with a plastic strip, keeping 1-3 leaves above the connecting part on the rootstock and performing pruning, and removing all the leaves below the connecting part; and (5) management of grafted seedlings. The cultivating method increases the germination rate of pecans; and in addition, the grafted seedlings are high in survival rate, strong in growth potential and high in seedling rate, and the seedlings grow in an orderly and consistent manner and have developed root systems.

The invention relates to a non-tillage fertilizing, film spreading, bunch planting and earthing combined machine, comprising a rotary tillage mechanism arranged in front of a machine tool, a fertilizing, reshaping and compacting mechanism arranged at the middle part of the machine tool, a film spreading and earthing mechanism arranged at the rear section of the middle part of the machine tool and a bunch planting and film surface earthing mechanism arranged at the rear part of the machine tool, wherein a rotary blade is arranged below the rack of the rotary tillage, a reversing gear case is arranged at the upper end of the rack of the rotary tillage; a fertilizer can is arranged above the front of the rack of the machine tool, a slide type ditching and fertilizing shovel is arranged below the front of the rack of the machine tool, and a reshaping and compacting roller is arranged behind the ditching and fertilizing shovel; and a film hanging frame is fixedly connected above the rack of the machine tool, a film unfolding roller is arranged below the rack of the machine tool, a film pressing wheel is arranged at each of two sides behind the film unfolding roller, and an earthing disc is respectively arranged at the outer side of each of the two film pressing wheels. The non-tillage fertilizing, film spreading, bunch planting and earthing combined machine provided by the invention can complete multiple operations such as rotary tillage, fertilizing, reshaping and compacting, film spreading and earthing, bunch planting and earthing at film holes at one time, evaporation of moisture in soil can be avoided, the operation procedures are reduced, and labour intensity is lightened.

The invention relates to a method for efficiently planting cycas revoluta, relating to the technical field of tree planting. The method for efficiently planting cycas revoluta is characterized by comprising the following steps of: (1) selecting cycas revoluta seeds with good quality and putting the seeds in purified water, and soaking for about one week under normal temperature, wherein the amount of the purified water is suitable to immerse the cycas revoluta seeds; (2) after soaking, removing husks of the cycas revoluta seeds, knocking the budding parts of the cycas revoluta seeds to form small openings with a hammer or an extruding method; (3) deeply ploughing soil, mixing a mixture of yellow sand and earth in the deeply ploughed soil, splashing a layer of carbonfuran, and performing soil preparation to form 1.2 meters per row; (4) uniformly arranging the cycas revoluta seeds with knocked openings in the step (2) on the land after soil preparation with openings facing upwards, covering a layer of humus on the arranged cycas revoluta seeds, and splashing a layer of carbonfuran on the humus, wherein the thickness of the humus is 1-5 centimeters, and the thickness of the carbonfuran is 0.1-2 centimeters. The method is simple and feasible, and compared with the traditional propagation method, the method has the advantages that the bud ratio can reach more than 90 percent so that the bud ratio of the cycas revoluta seeds is greatly improved, the planting cost is reduced, and the economic benefit is improved.

The invention relates to a rapid breeding method of lemon stocks. The method comprises the steps of stock seed pretreatment, seedling cultivating bed preparation, ridging and planting, double-film covering as well as transplanting of seedlings with embryos. By using the technical method provided by the invention, problems of low emergence rate, long production time and the like of stock seed seedling planting can be solved; meanwhile, the rapid breeding method of the lemon stocks provided by the invention has the advantages of simplicity, practicability, easiness in operation and short time consumption; and compared with the traditional seedling cultivating method, the rapid breeding method of the lemon stocks provided by the invention has the advantages as follows: the stock seedling cultivating period can be reduced by 30 days, the emergence rate and survival rate of the stocks are greatly increased and the emergence rate can be high up to 85%. The technical method provided by the invention can be also used for producing other citrus stocks.

The invention relates to a seedling growing method for okra. The method includes the following steps that 1, full and complete okra seeds are selected and subjected to primary treatment; 2, the okra seeds treated in the step 1 are subjected to retreatment, and seedling growing is carried out; 3, a seedling growing tray is placed at 15-18 DEG C for treatment of 8-10 h, and then the temperature of the seedling growing environment is raised to 20-25 DEG C till okra germination. By means of the seedling growing method, the germination rate of okra is increased and reaches 95% or above, no hormonal agent is used in the seedling growing process, the safety of okra is improved, and the germination cycle of okra is shortened by 1-3 days.

The invention provides a chili pepper seed germination accelerating method comprising seed selection, seed soaking with a seed soaking agent, microwave nutrition solution seed soaking, refrigerator temperature-varying seed storage, rare earth seed dressing, and finally germination accelerating. The germination accelerating method improves the germination rate of chili pepper seeds, enables the germination rate to reach 100%, and improves the chili pepper field temperature difference change resistant ability; and brassinolide is added in the seed soaking agent, promotes the seedling growth, has an obvious promoting role in root systems and plant height of chili pepper, allows a seedbed to have no weed generation, increases the yield, and improves the quality of the chili pepper.

The invention relates to a groundcherry seedling propagation method which belongs to the field of groundcherry cultivation. The invention solves the problems that because groundcherry seeds are difficult to germinate, the yield of groundcherry plants bred from the seeds in that year is low and the levelness is poor, so that the seed reservation method of the groundcherry is the nutrition propagation method of rootstalk passed down from generation to generation, the yield of the groundcherry is reduced and the plant disease insect pest is severe. The method of the invention comprises the following steps: a seed is obtained from fruit, treated by gibberellin and off sleep, sprouted and planted in a seedling bed; a seedling which grows to have 7 to 9 leaves is permanently planted, fruit is picked after getting mature, and then underground rootstalk is left in the soil and dug out in late April in the next year, segmented to prepare a groundcherry seedling. Compared with the plant yield prepared through a method of root reserving in successive years, the total yield of groundcherry prepared by planting the groundcherry seedling of the invention is improved by 15 to 20 percent, the single fruit weight is improved by 8 to 10 percent, the sugar content is improved by 9 to 12 percent, the vitamin C content is improved by 5 to 10 percent, and root rot and other soil-borne diseases are reduced by more than 80 percent.

The invention provides a water spinach seed germination accelerating method comprising seed selection, microwave treatment and seed soaking with a seed soaking agent, nutrient solution seed soaking, refrigerator low-temperature seed storage, compound microelement fertilizer seed dressing, and constant temperature germination accelerating. The germination accelerating method performs accelerating germination on water spinach seeds, the germination rate is high, seedlings are healthy and strong and are survived quickly after transplanting, leaves of a growth period are fresh and tender, no yellow leaves and rotten leaves exist, petioles are wide and thick, fiber is less, and the taste is extremely good.

The invention discloses a direct seeding method of bletilla ochracea protocorm. According to the method, firstly, bletilla ochracea seeds grow into protocorm under the tissue culture condition; then the protocorm cultured through tissue culture is directly seeded for growing seedlings on a seedbed in a greenhouse. The method is easy to implement, the seeds fast sprout first under the tissue culture condition, when the protocorm needs to be subjected to transplantation culture, the protocorm is transplanted in the nature, the germination rate is increased, production cost is reduced, lots of bletilla ochracea seedlings can be acquired in a short time, the requirement of large-area and large-scale seedling growing is met, and the method has dual significance in production and economy.

The invention discloses a fertilizing method for paddy rice. The fertilizing method comprises a first step of selecting biogas slurry and biogas residue with normal gas production 2 or more months; a second step of soaking seeds with the biogas slurry: immersing the seeds for 2-4 hours; a third step of fertilizing in a rice seedling bed: the third step comprises two procedures of fertilizing a base fertilizer in the rice seedling bed by applying the biogas residue, diammonium phosphate, potassium chloride and poly(aspartic acid) in combination with plough before reorganizing the bed; and fertilizing an additional fertilizer in the rice seedling bed in two stages, spraying a ammonium sulfate solution before a three-leaf stage; and topdressing diammonium phosphate one day before the paddy rice seedlings are taken out from the rice seedling bed; a fourth step of fertilizing in a big field: the fourth step comprises two procedures of fertilizing a base fertilizer in the big field by using the biogas residue, diammonium phosphate and potassium chloride as the base fertilizer, and simultaneously mixing the poly(aspartic acid) into the base fertilizer; and fertilizing an additional fertilizer in the big field in three stages being a tailoring fertilizer and a fertilizer for head sprouting respectively, wherein the tailoring fertilizer is applied in half a month after the paddy rice seedlings are transplanted, and in the stage, ammonium sulfate and a calcium-silicon fertilizer are applied; and at the same time, a mixed solution of the biogas slurry and poly(aspartic acid) are sprayed on leaf surfaces; and the fertilizer for head sprouting is applied 15-18 days before the head sprouting, and in the stage, a mixed solution of the biogas slurry and poly(aspartic acid) are sprayed on the leaf surfaces.