22218 results about "Seedling" patented technology

The present invention relates to isolated nucleic acid molecules and their corresponding encoded polypeptides able confer the trait of modulated plant size, vegetative growth, organ number, plant architecture, sterility or seedling lethality in plants. The present invention further relates to the use of these nucleic acid molecules and polypeptides in making transgenic plants, plant cells, plant materials or seeds of a plant having such modulated growth or phenotype characteristics that are altered with respect to wild type plants grown under similar conditions.

A method of modifying the content of certain chemical compounds in tobacco materials is provided, the method including treatment of a tobacco plant component with at least one probiotic. For example, the method may modify the asparagine content in tobacco materials, which can result in a modification in acrylamide production when the tobacco material is exposed to elevated temperatures. The type of tobacco plant component treated according to the invention can be a tobacco seed, a tobacco seedling, an immature live plant, a mature live plant, a harvested plant, or a portion thereof. Examples of probiotics include probiotic species of the genera bifidobacterium, lactobacillus, enterococcus, proionobacterium, bacillus, saccharomyces, streptococcus, and mixtures thereof. Smoking articles and other tobacco products including such probiotic-treated tobacco materials are also provided.

The invention discloses a seedling substrate for vegetables, belonging to the technical field of soilless culture. The substrate formula comprises the following components based on volume ratios: 10-40% of fermented vinegar dreg, 5-30% of fermented cassava dreg, 5-30% of plant ash, 5-30% of perlite, 5-30% of vermiculite and 10-25% of turf. The water content of the substrate is not bigger than 50%, and the total porosity of the substrate is 65-95%, and the total nutrient content of the substrate (N+P2O5+K2O) is 3-5%, and the grain diameter of the substrate is 0.1-4.9 mm, and the volume weight of the substrate is 0.2-0.8 g/cm3, and the gas-water ratio of the substrate is 1: 2-4, and the EC (elastic coefficient) value of the substrate is 1-3 and the pH value of the substrate is 5.8-7.5. The seedling substrate for soilless culture for vegetables mainly uses organic wastes as raw materials, and produces seedling substrate by high temperature fermentation treatment, and changes wastes into wealth, and turns harm into good. The invention has a low production cost, a light weight and complete nutrients such that it is suitable for growth and development for vegetable seedlings, and is a good substrate for soilless culture industrialized tray seedling for vegetables.

A method of modifying the content of certain chemical compounds in tobacco materials is provided, the method including treatment of a tobacco plant or portion thereof with at least one enzyme. For example, the method may modify the content of tobacco smoke toxicant precursors in tobacco materials, which can result in a modification in toxicant production when the tobacco material is exposed to elevated temperatures. The type of tobacco plant or portion thereof treated according to the invention can be, for example, a tobacco seed, a tobacco seedling, an immature live plant, a mature live plant, a harvested plant, or a plant derivative. Smoking articles and other tobacco products including such enzyme-treated tobacco materials are also provided.

The invention discloses a special seedling-raising medium for leaf vegetables, belonging to the technical field of soilless culture. The medium comprises vinegar residue, manioc waste and other organic wastes, as well as vermiculite, grass carbon, plant ash and perlite. The formula of the medium comprises the following components in volume ratio: 25-35 parts of vinegar residue, 5-10 parts of manioc waste, 10-15 parts of plant ash, 15-20 parts of vermiculite, 20-25 parts of grass carbon and 5-10 parts of perlite; and the medium has total nutrient content of 1-3%, free water content of 25-40%, total porosity of 65-85%, volume weight of 0.1-0.8g/m<3>, pH of 5.5-7.5, EC (electrical conductivity) value of 0.5-2.0mS/cm and dry base organic matter content of not less than 25%. The special seedling-raising medium disclosed by the invention mainly takes the vinegar residue, the manioc waste and other organic wastes as raw materials, and high-temperature fermentation treatment is performed for producing the soilless culture medium, so that the wastes are changed into valuables and harmful things are further turned to beneficial things. The special seedling-raising medium has the advantages of low cost, light texture and complete nutrition, is very suitable for raising seedlings of the leaf vegetables, and becomes a good seedling-raising medium for soilless culture of horticultural crops.

The invention discloses a high-activity antibacterial peptide-containing matrix for garden seedling cultivation, as well as a preparation method and application thereof. The high-activity antibacterial peptide-containing matrix for garden seedling cultivation is prepared from the following components: Chinese medicament residues, organic additives, inorganic additives, microbial blends, housefly larva excrement, functional microbes and a water retention agent, wherein the functional microbes have the effects of activating matrix nutrition, exogenously fixing nitrogen, antagonizing pathogenic microorganism, reinforcing absorbing capability of seedling roots to nutrition and promoting seedling growth. Furthermore, the matrix for garden seedling cultivation has comprehensive nutrient elements, stable performance, strong buffer capability, and good water and fertilizer retaining performance; and the preparation method has simple production process, short production period, wide sources and low cost of raw materials, no environmental pollution and convenience in large-scale commercial production. The matrix for garden seedling cultivation can be used for raising and cultivating garden green seedlings, and can also be used for repairing and improving the ecological environment.

Disclosed are a tobacco composite microbial fertilizer and its preparation method. The tobacco composite microbial fertilizer contains an active functional bacteria ingredient, an organic fertilizer ingredient and an inorganic composite fertilizer ingredient, wherein the active functional bacteria ingredient contains phosphate solubilizing bacteria-Bacillus megaterium powder, potassium bacteria-Bacillus mucilaginosus powder, tobacco growth-promoting rhizobacteria-Bacillus amyloliquefaciens powder and tobacco endophytic antagonistic bacteria-Brevibacillus laterosporus powder; and the organic fertilizer ingredient contains decomposed manure, a rapeseed cake fertilizer and straws. The invention also relates to a preparation method of the tobacco composite microbial fertilizer. The fertilizerprovided by the invention has advantages of an organic fertilizer, an inorganic fertilizer and a microbial fertilizer. According to the invention, utilization rate of the fertilizer can be raised, soil organic matters can be increased, tobacco plant rhizosphere microbial proliferation can be promoted, soil physical and chemical property and biological activity can be improved, comprehensive and balanced nutrients can be provided for the early growth of tobacco seedling, the occurrence of soil borne disease can be decreased, and flue-cured tobacco output and quality can be substantially improved.

The invention discloses a seed coating agent specially used for direct seeding rice, which is characterized in that the seed coating agent mainly contains the following ingredients by weight: 2 to 8 percent of super absorbent resin, 1 to 5 percent of oxygenates, 0.1 to 0.5 percent of sparrow and rat destruction agent , 0.5 to 2 percent of bactericide, 0.5 to 2 percent of pesticide, 0.02 to 0.2 percent of plant growth regulator, 3 to 10 percent of trace element fertilizer and the margin is special type mineral clay. The powder raw materials are crushed to more then 100 meshes and are mixed evenly, the mixture is coated on the surfaces of rice seeds by a seed-coating method for direct sowing, thus clay sacculus integrating 'a small water reservoir, a small oxygen reservoir, a small drug storage and a small fertilizer storage' are formed around the rice seeds and at the roots of seedlings; the seed coating agent has the effects of preserving and providing water, ventilating and providing oxygen, promoting seedling emergency, preventing diseases and killing pests, preventing mice and destructing sparrows, strengthening seedlings and roots and increasing production. The seed coating agent is also characterized by low dosage, low cost, simple and convenient operation, and the like, thereby being applicable to coating rice seeds which are directly sowed both on flooded paddy fields and dry paddy fields.

The invention belongs to the technical field of cultivation of agricultural crops and provides a pollution-free high-yield rice cultivating method. The pollution-free high-yield rice cultivating method includes selecting a production base accordant with pollution-free rice production standards and selecting novel high-quality high-yield anti-disease variety; selecting drought seedlings and strong seedlings of the right age, fertilizing a soil bed and cultivating the seedlings dryly; slinging the seedlings without tillage and for multiple tillers; fertilizing pollution-free rice according to the principle of taking base fertilizer as the principal and topdressing as complement, and simultaneously, interplanting glutinous rice; comprehensively preventing and controlling disease and pests, and timely harvesting in sunny days when the ripeness degree of the rice is up to 85-90%; and storing and processing the harvested rice and processing by-products of the harvested rice. The rice produced by the pollution-free high-yield rice cultivating method is high in quality and yield, safe and pollution-free, low in planting cost and simple in management method and has higher popularization and application value.

The planting arm of the direct-taking wide-narrow row splitting mechanism belongs to agricultural machinery; the planting arm includes a planting arm shell and a cam fitted on the planting arm shell, a shift fork shaft, a shift fork, a seedling pusher and a seedling claw, and the cam The cam axis and the shifting fork axis of the shifting fork shaft are arranged in a space staggered angle, through the space staggered angle, the pusher bar and the seedling claws are perpendicular to the rice transplanter seedling door, and the pusher bar and the seedling claws are aligned with each other. The working direction of the rice transplanter is parallel; the planting arm realizes the operation of wide and narrow rows to form rectangular seedling blocks when picking seedlings, and the two sides of the claws act on the seedling blocks at the same time, and the seedlings are vertical when transplanting. The structure is simple and reasonable, and the operation quality is good. features.

The invention discloses a transplantation method for garden seedlings, and relates to the technical field of seedling transplantation. According to the invention, the significance of big-tree transplantation in garden greening is mainly elaborated, and a big-tree transplantation technique is introduced from the aspects of preparation before transplantation, transplantation, management and maintenance after transplantation, and contradictions existing in big-tree transplantation, thereby providing a technical reference for a purpose that big trees can be applied to garden greening better. The method disclosed by the invention is simple, effectively improves the survival rate of transplanted big trees, and solves the contradictions existing in big-tree transplantation.

The invention relates to a nondestructive detection method for comprehensive character living bodies of plant seedlings, which comprises the following steps of: performing high-spectrum imaging on the plant seedlings, extracting RGB images and a spectrum of a specific area from a high-spectrum data cube, and acquiring morphological parameter, component content distribution and disease and insect pest information of the seedlings by image processing and spectrum analysis; and establishing a growth prediction model of the plant seedlings by adopting a character-level information fusion method and a fuzzy comprehensive judgment method. The method can realize comprehensive judgment on characters of appearance, nutritional component and disease and insect pest information of the seedlings, and overcome the error caused by un-uniformity during component measurement.

The invention relates to a technology for afforestation and planting in areas with shallow water level and heavily-salted soil and solves the problems of high cost for foreign soil replacement and short duration. The technical proposal is that: the process realizes the original soil planting by building an integral isolation zone in the greening area and controlling a microcirculation system inside the isolation zone and desalting with fresh water. The process comprises the following steps: A. building an isolation zone; B. desalting with fresh water until the salt content in soil is below 0.2%; and C. planting seedlings for afforestation. The technology solves the technical problems of high cost for foreign soil replacement and short duration of afforestation and greening in coastal areas with shallow water level and heavily-salted soil; and has the advantages of overcome serious erosion of underground salt water to soil mass, good desalting effect, reduced afforestation cost, improved soil structure, low requirements for raw materials for afforestation, applicability for various seedlings, easy maintenance and management and low cost.

The invention discloses a production method for a biological organic fertilizer which belongs to the field of manufacturing of composite fertilizers. The production method comprises the following steps: with pig manure, cow dung, chicken manure, sheep manure, vinasse, vinegar residue, cassava residue, furfural residue, uncontaminated river mud, corn straw, peanut straw, rape straw, a cottonseed cake, plant ash, a deodorant, a biological nitrogen fixation bacterium, a phosphate solubilizing bacterium, a potassium solubilizing bacterium, a nodule bacterium and a phosphorus activator used as raw materials, carrying out tank continuous fermentation to allow the raw materials become thoroughly decomposed; carrying out deodorizing and removing water; and carrying out granulation to obtain the granular biological organic fertilizer. The fertilizer has the following advantages: a complete range of nutrient elements, capacity of improving physical and chemical properties of soil and enhancing water retention, fertilizer retention and fertility supplying capacity of the soil, no corrosion and damage to roots and seedlings and capacity of substantially improving the quality of an agricultural product.

The invention discloses a composite type artificial algal reef comprising a mature algal reef and a seedling reef. The mature algal reef comprises a solid base. The upper surface of the solid base is embedded with a metal frame, wherein the shape of the metal frame is identical to that of the upper surface of the solid base and the size of the metal frame is identical to that of the upper surface of the solid base. A conch net bag is arranged in the metal frame. The center of the upper surface is embedded with a metal stand column. A steel ring is welded to the upper end of the stand column. A plurality of seedling ropes are fixed between the metal frame and the steel ring. The seedling reef is fixed to the side face of the solid base of the mature algal reef, and algal seedlings are attached to the seedling reef. By the adoption of the composite type artificial algal reef, the attaching effect of alga is guaranteed, the repair period of an algae field is shortened, the success rate of repair and reconstruction of the algae field is improved, the adhesive rate of the seedlings is increased, and the seedling reef is firm, durable, small in size, light, and convenient to carry; the net bag made of waste conches is placed in the metal frame, and a biophile reef can be composed through diffusion and attachment of spores of fronds on the seedling ropes; resource utilization of the waste conches is achieved, and composite type artificial algal reef has the advantages of being economical and easy and convenient to use.

The invention relates to a Paris polyphylla var. yunnanensis scale seedling culturing method. The method comprises the following steps of: selecting Paris polyphylla var. yunnanensis plants more than 10 years old and reserving seeds for planting; collecting mature seeds; washing the collected seeds to remove episperm; spreading and drying the seeds in a shade and ventilating place within 12 hours, wherein a temperature is maintained and an accumulation thickness is less than or equal to 6 cm; spreading the seeds uniformly and drying; filling the seeds into a ventilating container; storing the container in a shade environment with a suitable temperature, wherein the storage time is no more than 2 months; clearing impurities and residues in a seedling culturing field; fertilizing decayed farm manure and calcium superphosphate; plowing and raking soil; forming a furrow; spreading humus soil on the furrow surface; flatting the furrow surface; sowing in early June next year; taking the stored seeds, and after sterilizing, broadcasting the seeds uniformly according to the thickness of sowing; earthing after broadcasting; covering mantle on the furrow surface; irrigating sufficiently and performing seedling management. A method for drying the seeds of the Paris polyphylla var. yunnanensis in shade in an environment without direct sunlight is adopted, the dormancy of the seeds of the Paris polyphylla var. yunnanensis is broken, and the scale production of Paris polyphylla var. yunnanensis seedlings is realized, so that germchit guarantee is provided for large-area popularization and cultivation of the Paris polyphylla var. yunnanensis. The method has the characteristics of simple and easily-learned operation, high survival rate of germchit, low production cost, healthy and strong germchit, stable and reliable technology, high repeatability, and capacity of effectively solving the problem of scale seedling cultivation of the Paris polyphylla var. yunnanensis.

The invention discloses a method for tissue-culture breeding and wild-simulated cultivation of dendrobium candidum, which comprises: inoculating dendrobium candidum tender straw slices onto a culturemedium for culture under conditions of a temperature of 22 to 24 DEG C and an illuminance of 1,000 to 1,500 Lx to first induce the growth of calles to form protocorms and then promote the multiplicative growth of the protocorms into 5 to 8 centimeter strong seedlings; and moving the seedlings out of a culture room, hardening the seedlings at a normal temperature for 3 to 5 days and transplanting the seedlings into the ground in a green house. The plane basic layer of a cultivation check field in the green house are provided with spaced breather holes; the upper layer of the cultivation check field is a cultivation medium; the seedlings are planted at a row spacing of 12*8cm and a spacing in the row of 12*8cm; in the green house, the temperature is 0 to 28 DEG C, the humidity is 60 to 70 percent and the shade density is 70 to 80 percent; and disease and pest prevention and control are carried out periodically and the dendrobium candidum can be harvested in 3 to 4 years. The method improves the civil year breeding coefficient of the dendrobium candidum by about 10 times, provides enough seedlings for large-scale cultivation, solves the problem of wild-simulated cultivation and realizes scale cultivation.

The invention provides a tie-to-tree dendrobium officinale cultivation method, comprising the steps of seedling tissue-culture breeding, tissue-culture seedling acclimatization and tie-to-tree cultivation of acclimatized seedlings. The step of tissue-culture seedling acclimatization comprises selection of bottled tissue-culture seedlings, selection and arrangement of a seedling acclimatization medium, selection of seedling acclimatization fertilizer, planting and after-planting management and is characterized in that the seedling acclimatization medium consists of hardwood sawdust and broken stone mixed in a mass ratio of 6.5-7.5:2.5-3.5, and the seedling acclimatization fertilizer is organic fertilizer prepared by fermenting herbivorous animal waste. The step of tie-to-tree cultivation of acclimatized seedlings comprises selection of acclimatized seedlings, selection of cultivation forest land, selection of variety of trees to be tied, seedling tying up and planting management. The tie-to-tree dendrobium officinale cultivation method provided by the invention has the advantages of low planting cost, easiness in management, high survival rate and long harvesting period; moreover, the harvest products have high quality.

The invention relates to a seedling growing method of apocarya and belongs to the technical field of fruit trees and forest cultivation. The method includes the steps of sprouting breeding, grafting and post-grafting management. By means of the method, a large amount of scions are obtained each year and are grafted on the stock and the seedling with strong affinity in due time, so that stock grafting survival rate of the apocarya is improved. Grafted seedling preserving rate after large-amount grafting is over 90%. Further, the method achieves tree body stuntedness, shortens the juvenile phase and enables tree bodies to fruit earlier in the fourth year after grafting. The fruiting time is 6-8 years earlier than before. Simultaneously, the method provides a growing method for apocarya stock grafting seedlings and with strong operability for batch and variety seedling growing of the apocarya and greatly increases economical value of the apocarya.

The invention discloses a method for growing watermelons. The method includes the steps of processing seeds and accelerating germination, sowing and raising seedlings, applying base fertilizer on the whole land, transplanting the seedlings, performing field management, harvesting and the like. The method for growing watermelons is easy to operate, convenient to manage, good in growth vigor of watermelons, high in disease resistance, uniform in result nature and high in yield, the yield per mu can reach 4000 kg to 5000 kg, the watermelons are large, good in quality, high in sugar content, bright in flesh color, delicate in flesh and high in water content and commodity value, and therefore the method has great significance for increasing income of melon farmers.

The invention discloses a method of hardwood cutting propagation of Qilian Juniper, which is characterized in that, annual hardwood of the Qilian Juniper having the age ranges from seven years to ten years is cut as branches; the average length of the branches ranges from 14.0cm to 18.0cm; the average diameter of the branches ranges from 3.0mm to 5.0mm; on the last ten days of April of each year, the branches are inserted into a greenhouse for seedling; the cutting medium is the mixture of peat and perlite mixed according to the proportion of 1:1; the cutting medium is firstly formed into a medium sausage having the length ranging from 13cm to 16cm; then the cutting medium is put in a 58 x 32cm tray and is put on the cutting bed in the greenhouse. The breeding of Qilian Juniper is realized by the method of hardwood cutting propagation. The method has the advantages of reduced seedling period of Qilian Juniper, saved cost and remarkable effect.

The invention discloses a standardized cultivation method of super double cropping rice. Currently, the super double cropping rice is cultivated still according to a traditional method for cultivating ordinary rice, yield is not stable, the quality is not high, and grain safety and income increasing of farmers are seriously affected. The standardized cultivation method includes the technical measures of selection of varieties, selection of environment of producing area, robust seedlings cultivation, field cultivation and management, integrated control over plant diseases and insect pests and the like, and systematized standardized cultivation technology integration research of the super double cropping rice is carried out. According to a test result after 56 thousand of hm2 is popularized and applied, the yield of 667 m<2> reaches 456.67 kg/ 667 m<2> averagely, the yield increase range reaches 42.57 kg/ 667m<2> averagely, the rate of growth reaches 10.27% averagely, the increased income of every 667 m<2> reaches 100.58 RMB/ 667 m<2> averagely, the cost for using chemical pesticide to control diseases, pests and the like is lowered, and the cost is saved by 6.5-7.2 RMB/ 667 m<2>. According to the technical standard, the production of the super rice is indexed and scientized, the technical operability is high, the application effect is good, the standardized cultivation method is deeply popular by mass farmers, and the gained economic benefit, social benefits and ecological benefits are remarkable.

The invention discloses a revegetation method for mine slopes, which includes steps: firstly, clearing a slope to remove impurities on the slope; secondly, configuring planting material, namely selecting planting soil, peat soil, turf fibers, slow release fertilizer, fast release fertilizer, super absorbent polymers and adhesive prior to well mixing, and using the mixture as the reserve material; thirdly, constructing a planting-bag cofferdam planter, namely using planting bags filled with the planting material to construct the bird's nest shaped planter on a local concave lot of the slope; fourthly, performing material spraying, namely fastening anchor bolts on a non-planter portion of the slope, hanging a metal net on the anchor bolts, spraying the planting material to the metal net, mixing plant seeds with surface soil on the surrounding mountain land to obtain mixture, and using a sprayer to spray the mixture to the planting material; fifthly, planting a seedling in the planter; and sixthly, replanting material-type containerized seedlings. The revegetation method is low in cost, great economic benefits are obtained by using the method, and a composite revegetation process based on arbors and shrubs and combination of arbors, shrubs and grasses is built.

The invention discloses an automatic grafting machine, comprising a soleplate, a rotating arm mechanism which is arranged on the soleplate and is in charge of parental stock seedling feeding, clamping and pressing operation and working position transposition, a parental stock punching mechanism which is arranged on the soleplate and above the parental stock clamp of the rotating arm mechanism and is used for punching on the parental stock seedling, a parental stock root pruning mechanism which is arranged on the soleplate and under the parental stock clamp of the rotating arm mechanism and is used for root pruning operation on the parental stock seedling, a cion grafting mechanism which is arranged on the soleplate by a grafting bracket and is used for grafting cion seedling, a cion cutting knife switching mechanism which is arranged on the grafting bracket and is connected with a cion cutting mechanism and a control box which is arranged on the soleplate, is connected with all the above mechanisms and is in charge of electrical control on all the mechanisms. The invention adopts pneumatic drive with fast and steady operation, simple structure, convenient operation, steady grafting quality and high yield.

The invention discloses an organic rice cultivation method, which comprises the following four steps of: 1) rice seedling raising, 2) fertilizer application; 3) reasonable close planting and 4) field management. The organic rice cultivation method is characterized in that the step of fertilizer application comprises the following two sub-steps of: 1) preparing and applying composted farmyard manure: evenly spraying microbial manure into farmyard manure, covering the farmyard manure with a plastic film, processing for 21 days to obtain the composted farmyard manure and then applying the composted farmyard manure in a paddy field; and 2) applying microbial manure: applying the microbial manure in the paddy field with water depth being less than 3cm and transplanting rice seedlings 15 days later after the microbial manure is applied. The organic rice cultivation method has the advantages that the heavy-metal ions and the chemical residues thereof in soil can be eliminated; the caking and the desertification of the soil can be gradually eliminated, the content of organic matters is improved, the pH (potential of hydrogen) is regulated, the granular structure is optimized and the breeding of harmful pathogenic bacteria is inhibited; the nutrients are sufficient; and a large quantity of nitrogen elements in air and various intrinsic elements in the soil are fully utilized, and low-carbon, environmental-friendly, sustainable, circular and high-efficiency agricultural economy is formed.

A floatable growth tray for the germination of seedlings has a plurality of cells adapted to receive a mixture of a growth median and seeds. The tray has sealed pockets forming air chambers to enable the tray to float. The cells have holes forming openings extending through a bottom surface of the tray permitting water to enter the cells to promote germination of the seeds.

The invention discloses a hormone-free tissue culture method for dendrobium candidum, which comprises four tissue culture stages including germinating of seeds of the dendrobium candidum into spherical stems, multiplication and differentiation, and rootage and sound seedlings at stem sections; culture media used at the four stages include a hormone-free MS (Murashige and Skoog) culture medium, a hormone-free MS basal culture medium plus 15-20 g/l mashed potato culture medium, a hormone-free MS basal culture medium plus 15-20 g/l mashed banana plus 15-20 g/l mashed potato culture medium and a hormone-free 1/2 MS basal culture medium plus 15-20 g/l mashed banana plus 15-20 g/l mashed potato culture medium. The polysaccharide content and total alkaloid content in the culture of the dendrobium candidum obtained by hormone-free culture are increased compared with hormone-containing culture; the growth state of the dendrobium candidum is normal; the genetic diversity of the plant variety is protected; with the adoption of the method, the tissue culture of the dendrobium candidum is more convenient, green and environmentally friendly, and the resources are saved.

The invention discloses a three-dimensional original ecological cultivation method for dendrobium candidum in forest. The three-dimensional original ecological cultivation method comprises the following steps of: firstly, selecting a cultivation environment; secondly, preparing a cultivation pot; thirdly, paving a matrix in the pot; fourthly, selecting seedlings; fifthly, permanently planting; sixthly, planting in a hanging manner or binding the seedling on the tree; seventhly, managing the cultivation; and eighthly, harvesting. The three-dimensional original ecological cultivation method disclosed by the invention provides a three-dimensional environment of original forest; the healthy growth of the dendrobium candidum is ensured; and the industrial and scale development of the dendrobium candidum can be realized; and the three-dimensional original ecological cultivation method disclosed by the invention has the advantages of high survival rate of seedlings, high yield, high quality of products, low cultivation cost and simpleness for management and operation.

The invention discloses a method for conducting afforestation on saline-alkali soil. The method includes the steps of firstly, digging deep planting pits in the saline-alkali soil; secondly, paving two layers of isolating curtains at the bottom of each planting pit and the inner wall of each planting pit respectively; thirdly, arranging filtering layers between each isolation layer and the bottom of each planting pit and between each isolating layer and the inner wall of each planting pit; fourthly, preparing mixed matrix, filling the matrix into the pits and tamping down the matrix; fifthly, planting seedlings; sixthly, conducting maintenance management. According to the method for conducting afforestation on the saline-alkali soil, the difficult problems of lowering the salt content, improving the soil and conducting afforestation on the saline-alkali soil are solved. Through the measures of discharging salt and blocking salt, the salt content in the distribution range of the plant root systems is lowered, the plant root systems are promoted to absorb nutrient and water and discharge salt in a unidirectional mode, and a soil environment which is beneficial to plant growth is created. According to the method for conducting afforestation on the saline-alkali soil, the survival rate and the preserving rate of the seedlings are improved, and the method is low in cost compared with a traditional method for improving the saline-alkali soil by merely paving the salt isolating layers, replacing soil and conducting afforestation, is suitable for the saline-alkali soil afforestation and the plant cover recovery project, and can also be used in the manual construction and the machine and human coordinated construction.

The invention relates to an application method of arbuscular mycorrhizal fungus in large-scale tobacco cultivation. A primary arbuscular mycorrhizal fungi fungicide is inoculated and propagated separately, and propagule spore density of an arbuscular mycorrhiza of each fungi after the propagation is 30 pieces per gram of dry soil. A float breeding method is adopted to conduct arbuscular mycorrhizal fungi fungicide combinedinoculation to tobacco, mycorrhization tobacco seedlings are obtained, and the mycorrhization tobacco seedlings are directly applied to field production. When being transplanted, the mycorrhization tobacco seedlings are conducted with a two-step inoculation, and the mixed fungicide is mixed by propagated acaulospora mellea, glomus mosseae and glomus intraradices at a proportion of 0.5-1: 1:1. A colony formed by the propagation of the arbuscular mycorrhizal fungus is close to a natural state, and fungus cooperate and play a better role of growth promoting and quality improving. According to the application method of the arbuscular mycorrhizal fungus in the large-scale tobacco cultivation, by means of the two times of inoculations of the arbuscular mycorrhizal fungus, the proportion of arbuscular mycorrhizal fungus and the tobacco in a symbiotic system built during a seedling stage of the tobacco is guaranteed, and the beneficial effects of the symbiotic system to the development of the tobacco seedlings are ensured. The application method of the arbuscular mycorrhizal fungus in the large-scale tobacco cultivation is simple and practical in method and environment friendly.