3641results about "Growth substrates" patented technology

The invention discloses coal gangue-based artificial ecological soil and a preparation method and application thereof, and belongs to the technical field of ecological improvement, the coal gangue-based artificial ecological soil comprises crushed coal gangue and a compound microbial agent, and the compound microbial agent comprises a microbial activating agent and a microbial passivating agent. According to the invention, the coal gangue can be quickly decomposed through the microbial activating agent, useful mineral elements in the coal gangue can be fully activated and analyzed, and the effect of activating a nutrient library in the coal gangue is achieved, so that useful trace elements contained in the coal gangue are effectively released and are easily absorbed by plant growth; meanwhile, harmful heavy metal elements in the coal gangue are passivated through the microbial passivating fungicide, the water-retaining property and the air permeability of the soil are guaranteed by controlling the decomposition particle size proportion of the coal gangue, the soil conditioner can be used for ecological restoration, desert control, agriculture and animal husbandry planting, flower and nursery planting and urban landscaping, the effects of improving the soil and promoting plant growth are achieved, and the soil conditioner is suitable for large-scale popularization and application. The application is wide.

The invention provides a slow-release ecological grass blanket for improving an eroded inferior land and a construction method of the slow-release ecological grass blanket. The ecological grass blanket comprises a bottom intercepting layer, a nutrient slow-release layer, a seed triggering layer and a surface fixing layer which are sequentially arranged on the soil surface of the eroded inferior land. The bottom interception layer at least comprises a water-soluble lower film arranged on the soil surface and a first composite substrate layer arranged on the water-soluble lower film; the nutrient slow-release layer at least comprises an organic fertilizer mixture particle layer arranged on the first composite substrate layer and a water-soluble upper film arranged on the organic fertilizer mixture particle layer; the seed triggering layer comprises a degradable fiber lower net arranged on the water-soluble upper film and a composite seed belt arranged on the degradable fiber lower net; the surface fixing layer comprises a second composite substrate layer arranged on the composite seed belt and a degradable fiber net arranged on the second composite substrate layer. The ecological grass blanket provided by the invention is high in seed survival rate, good in uniformity, low in cost and capable of realizing sustainable ecological restoration.

The invention discloses a cultivation method for rapid vernalization of winter wheat to accelerate annual iteration, and belongs to the technical field of plant growth regulation and control. The cultivation method comprises the following steps of disinfection and germination, low-temperature vernalization, transplanting and cultivation, and drying and harvesting. The method has the beneficial effects that compared with other current wheat growth acceleration methods, the technical process and the required environment of each stage are simple, and the (semi) winter wheat breeding efficiency is greatly improved. The temperature or photoperiod does not need to be repeatedly adjusted, and vernalization can be performed by adopting short photoperiod / low illumination intensity, so that energy is saved, and the method is environment-friendly and suitable for large-scale popularization. The cultivation method is green, efficient, low in power consumption, low in requirement for environment equipment and simple and convenient. The method is suitable for being used in large-scale plant factories, and meanwhile, a method for rapid vernalization of winter wheat to accelerate annual accelerated iteration of wheat is provided for scientific research institutions, enterprises and public institutions with limited conditions.

The invention discloses a high-beach difficult land mangrove plant restoration method, and relates to the technical field of wetland ecological restoration. Through the design of the concave planting pits and the improvement technology of the compound matrix, the problems of insufficient tide immersion and soil hardening in existing high beach remediation are solved. According to the method, planting pits with specific sizes are dug, 2 / 3 of original soil is removed, and a composite matrix of a coco coir layer, a humus layer and a crushed soil layer is backfilled, so that the concave microhabitat with the surface layer 10-20 cm lower than the native mud flat is formed. The coco coir layer improves the air permeability of the soil, the humus layer provides organic nutrients, and the crushed soil layer enhances the stability of the root system. The concave structure prolongs the residence time of tidal water, promotes benthic organisms such as crabs to move and improves the soil quality. By means of the method, the survival rate of mangrove plants in the kaolin mud flat at the tail of the pond under the xiamen reaches 85% or above, and the forestation problem caused by high-beach soil hardening and insufficient tide flooding is solved.

The invention discloses a rapid breeding method for grafted seedlings of durian, and relates to the technical field of durian culture. The efficient breeding of the durian grafted seedlings is realized through the measures of seedbed building, disinfection, germination acceleration, laser separation planting, matrix nutrition bag component optimization, environment monitoring by a sensor, breeding parameter optimization by combining a random forest model and a genetic algorithm and the like. According to the method, the breeding period is shortened, the survival rate and the growth speed of the grafted seedlings are increased, a large number of high-quality grafted seedlings are provided for durian farmers, and the durian cultivation efficiency is remarkably improved.

The invention discloses a shallow lake submerged plant planting matrix and an efficient planting method. The method comprises the steps of submerged plant planting matrix preparation, seedling preparation, culture and maintenance and seed throwing. The planting substrate comprises the following components in percentage by weight: 54-74% of common soil; 12 to 33% of sediment; 11-12% of river sand; 1% of kaolin; after the raw materials are uniformly mixed, a small amount of water is added for multiple times, so that the sticky planting substrate is formed. Propagules such as submerged plant seedlings, buds and seeds are wrapped with the planting substrate. The submerged plants and the planting substrate form a stable whole body which is not easy to separate; after the plant seedlings are maintained and cultivated for 5 days, the submerged plant seedlings are thrown and planted in the lake water area. A small amount of degradable environment-friendly substrate raw materials are added, so that the strength and toughness of the planting substrate can be improved, the substrate can be kept in water until the submerged plants are stable in rooting and germination, necessary nutrient elements can be provided for growth of the submerged plants, and rapid and stable growth of the submerged plants is promoted.

The invention relates to the technical field of totally-closed artificial light plant factory planting, in particular to a totally-closed artificial light plant factory tomato seedling raising method, which is characterized in that each stage and each link in the whole cycle process of tomato growth are accurately controlled, and the tomato seedling raising efficiency is improved. Comprising the steps of nutrient solution management, irrigation frequency management and seedling raising environment temperature control in the stages of seed treatment, substrate preparation, sowing and germination acceleration, seedling raising and the like. The selection of a planting light source in the seedling raising stage is obtained through creative labor on the basis of a large amount of experimental data; the formula of the nutrient solution is also obtained on the basis of tomato characteristics and a large amount of experimental data in combination with creative labor; and the technical prejudice of conventional means is overcome, and the temperature condition of low-temperature treatment is adopted. All the technical means are organically combined and mutually influenced and promoted, and the technical problem of excessive growth of tomatoes in an artificial light environment can be effectively solved.

The invention provides a method for breeding spores of cibotium barometz and rejuvenating young spores. The method for artificially cultivating the Cibotium barometz, provided by the invention, comprises the following steps: separately planting sporophyte seedlings of the Cibotium barometz to be rejuvenated into a matrix, and carrying out rejuvenation culture; wherein the substrate is a mixture formed by mixing leaf mold and peat soil according to the volume ratio of (1-1.5): 1 or 1: 1, or a mixture formed by mixing leaf mold, white vermiculite and garden soil according to the volume ratio of 4: 1: 3. The method is low in cost, simple in technology, high in yield, high in seedling growth speed, suitable for large-scale batch production, capable of effectively meeting the rapid breeding requirement of the golden dog and capable of being widely applied to the fields of landscaping, medicinal production, scientific research and the like.

A method of creating a wetland in a hot, arid, location includes identifying or establishing a channel of flowing water at the arid location, and installing therein a mat containing seeds, and / or seedlings, and a super absorbent polymer (SAP). Water from the channel is applied to hydrate the SAP, and both edible and dam-constructing vegetation is allowed to grow and mature from the seeds and / or seedlings. Beavers are then introduced into the arid location, which eat the edible vegetation and use the dam-constructing vegetation to construct at least one dam across the channel of flowing water, thereby forming a wetland that further encourages both the vegetation and the beavers to propagate. A perforated, transparent or translucent cover sheet can be placed on or suspended above the mat. A water barrier can be placed below the mat. The wetland vegetation cools and humidifies the environment by transpiration of water.

The invention discloses a coal gangue abandoned mine ecological restoration water retention technology, and belongs to the technical field of environmental protection. According to the remediation technology, after the surface soil of the mine is loosened, the alkaline waste and the heavy metal adsorbent are firstly added for neutralization and adsorption pretreatment, and then the composite soil conditioner is continuously added to sequentially cover and construct the improved composite layer soil in a gradient manner; the composite soil conditioner comprises fly ash, steel slag, local clay, straw fibers, water-retaining slow-release microcapsules, charcoal, papermaking white mud and humus soil, high-resistance vegetation is transplanted on the obtained improved composite layer soil, meanwhile, a microbial agent is inoculated, and remediation is completed after the soil is maintained to be stable. According to the method, multiple technical processes are integrated and matched and cooperated with one another, the purpose of long-acting water retention is finally achieved through the combined action of multiple remediation mechanisms of materials, vegetation and microorganisms, and compared with a traditional mine remediation technology, the method is better in stability and longer in acting time and has a good application prospect.

A method of creating a wetland in a remote arid location includes identifying or establishing a channel of flowing water at the arid location, and installing therein a mat containing seeds, and / or seedlings, and a super absorbent polymer (SAP). Water is applied to the SAP, such that both edible and dam-constructing vegetation grows and matures from the mat. Beavers are then dropped into the arid location by parachute in containers that open upon landing. The beavers eat the edible vegetation and use the dam-constructing vegetation to construct at least one dam across the channel of flowing water, thereby forming a wetland that further encourages both the vegetation and the beavers to propagate. A perforated, transparent or translucent cover sheet can be placed on or suspended above the mat. A water barrier can be placed below the mat. The wetland vegetation cools and humidifies the environment by transpiration of water.

The invention relates to the field of environment and agricultural biotechnology, in particular to an application of a composite phosphate-solubilizing bacterial agent in promoting wheat growth, which is characterized in that germinated wheat is cultivated firstly, then the germinated wheat is placed in soil mixed with the composite phosphate-solubilizing bacterial agent to be cultivated, and then the germinated wheat is cultivated in soil mixed with the composite phosphate-solubilizing bacterial agent. Furthermore, the growth of wheat is promoted by the cooperation of enterobacter hormaechei HS6, pantoea agglomerans CT3 and wheat bran in the compound phosphate-solubilizing bacterium agent. Wherein the enterobacter hormaechei HS6 and the pantoea agglomerans CT3 can efficiently convert insoluble phosphorus in the soil into soluble phosphorus, the utilization rate of phosphorus in the soil is effectively increased, the use amount of chemical phosphate fertilizer is reduced, nutritional ingredients are increased for the soil, the physical and chemical properties of the soil are improved, wheat growth can be well promoted, and the application prospect is good.

The invention provides nutritional moisturizing ceramsite as well as a preparation method, application and an application method.The method comprises the following steps: firstly, uniformly mixing sieved power plant fly ash with commercial cement, solid nutrition powder and coal gangue powder, and adding hydrogen peroxide to obtain porous ceramsite; the preparation method comprises the following steps: adsorbing a nutritional agent by porous ceramsite, wrapping the porous ceramsite with phosphorylated chitosan, carrying out hydroformylation and alkynylation, and reacting with the modified microcapsule to obtain the nutritional moisturizing ceramsite. The invention also provides an application of the nutritional moisturizing ceramsite in desertification soil improvement. According to the application method of the nutritional moisturizing ceramsite in desertification soil improvement, the nutritional moisturizing ceramsite is divided into large, medium and small ceramsite according to the particle size, and directly covers a desertification land to form a nutritional moisturizing ceramsite layer in a big-end-up form, a uniform form, an interlayer form, a mixed form or a uniform mixing form. The nutritional moisturizing ceramsite prepared by the invention can improve soil fertility and promote plant growth.

The invention discloses a fixed fungus bed double-layer gastrodia elata cultivation device and method, and relates to the technical field of gastrodia elata cultivation. Comprising a cultivation installation part, and the cultivation installation part is used for double-layer cultivation of gastrodia elata. One-way isolation pieces are mounted on the cultivation mounting pieces; a limiting releasing part is mounted on the cultivation mounting part; a loosening prompting piece is mounted at the bottom of the cultivation mounting piece; the loosening prompting piece is used for detecting soil loosening during cultivation; an inclined control piece is mounted at the top of the cultivation mounting piece; the wood pile mushroom bed base material can be positioned by adopting the cultivation mounting piece, so that the wood pile mushroom bed base material can be fully utilized; the problems that according to an existing fixed fungus bed double-layer gastrodia elata cultivation device, seeds and seed tubers cannot be conveniently cultivated in a double-layer mode, and soil layer looseness cannot be conveniently prompted are solved.

The invention relates to the field of crop cultivation, and particularly discloses a multi-crop interplanting method with a high land utilization rate. According to the method, a multi-crop interplanting land distribution scheme is designed on the basis of user planting requirements, planting molds are built on land parcels with serious soil problems, and the planting molds are filled with crop growth supporting materials to serve as planting soil; planters can interplant various crops in the planting soil according to a multi-crop interplanting land distribution scheme, crops with serious soil-borne diseases, such as solanaceae or medicinal materials, can be planted on the same land for many years, planting can be carried out in land parcels with serious soil problems, the land utilization efficiency is improved, and the planting cost is reduced. The crop yield per unit land area can be increased in an interplanting mode, land resources are fully utilized, meanwhile, the planting production cost is reduced, and the economic output per unit area is increased.

The invention discloses a preparation method and application of artificial soil prepared from coal gangue, 100 parts by weight of raw materials comprise: 1-10 parts by weight of a bacillus complex microbial inoculant, 5-10 parts by weight of natural soil, 5-10 parts by weight of aluminosilicate, 5-10 parts by weight of urea, 57-82 parts by weight of modified coal gangue, and 2-3 parts by weight of moss biological crust. The preparation method of the bacillus complex microbial inoculant comprises the step of adsorbing bacillus megatherium, bacillus subtilis and bacillus mucilaginosus into biomass microspheres, so as to obtain the bacillus complex microbial inoculant. The artificial soil prepared from the coal gangue is used as a matrix, and is compounded with the matrix under the action of microorganisms, so that nutrients in the coal gangue are released, the structure and water holding performance of the coal gangue are effectively improved, heavy metal pollution is reduced, the plant growth environment is improved, and the prepared artificial soil has the characteristics of high nutrients, water retention, air permeability and the like; the ecological restoration problem of the coal gangue mountain is effectively solved, and the method has large popularization conditions in the ecological restoration direction of the coal gangue mountain.

The invention relates to a cultivation nutrient medium and a preparation method thereof. According to the nutrient medium, peat is completely abandoned, the coco coir, the straw and the biochar are combined to reduce ecological burden, the nutrient medium is an environment-friendly medium, the biochar fixes carbon and reduces emission, and the soil structure can be improved after long-term use; vermiculite improves the water-holding capacity, perlite and straw form a stable pore structure, and the ventilation porosity reaches 25% or above. Wormcast and a microbial agent synergistically release nitrogen, phosphorus and potassium, and the fertilizer efficiency is lasting. The microbial agent can inhibit soil-borne diseases such as fusarium and reduce the death rate of cultivated seedlings. The biochar adsorbs salt and toxins, and the EC value is stabilized at 1.2-1.8 mS / cm. The cost of the selected raw materials is reduced by 35% compared with that of a traditional substrate, and the substrate is suitable for large-scale production, suitable for vegetable seedling culture, potted flowers, organic farms and soilless culture systems, and especially suitable for saline-alkali soil or continuous cropping obstacle areas.

The invention provides a method for screening drought-enduring germplasm resources of macadamia nuts, and belongs to the technical field of plant germplasm resource screening. The screening method comprises the following steps: (1) sowing disinfected macadimia nut seeds into a seedling raising tray, and raising seedlings to obtain seedlings; (2) transplanting the seedlings obtained in the step (1) into a nutrient medium, and performing drought stress culture to obtain pretreated seedlings; and (3) determining drought tolerance indexes in the pretreated seedlings obtained in the step (2), and screening to obtain the macadimia nut drought-tolerant germplasm resources. According to the screening method provided by the invention, macadamia nut germplasm resources with relatively strong drought tolerance can be rapidly screened out, and powerful support is provided for cultivation of drought-tolerant varieties.

The invention relates to a high-frequency regeneration and rapid propagation method of Enkianthus chinensis tissue culture seedlings. The invention is characterized in that dormant axillary buds of semi-lignified young stems are used as the base. The method comprises the following main steps: sampling and disinfection treatment of explants, inducing of dormant axillary bud germination, inducing of adventitious bud and lateral bud high-frequency generation, strong seedling culture, test-tube rooting culture and acclimatization and transplanting. Finally, regenerative plants which have consistent parental character, excellent quality and strong stress resistance are obtained. According to the invention, lots of seedlings with consistent specification and excellent quality can be obtained within a short period of time, and marketization progress of Enkianthus chinensis is promoted powerfully.

Some aspects of the disclosure relate to composite materials and cultivation systems with particular utility for use in aquaculture, for example cultivating various species of seaweed. The systems comprise at least one highly tortuous and often micro-fibrous material and at least one material having low tortuosity. These systems may be configured in a variety of shapes and associated with a number of different structures. Some of these composite materials and cultivation systems may be used in both direct and indirect seeding of macroalgae plants such as seaweed.

The invention provides a base material and a method for improving the carbon sequestration capacity of an ecological restoration base material containing kitchen garbage through arbuscular mycorrhiza. The base material comprises a dry spraying ecological restoration base layer and a wet spraying surface layer. The surface layer is prepared from the following components in parts by weight: a kitchen waste ecological restoration base material carbon sequestration mixture A, planting soil, a soil adhesive, a water-retaining agent, biochar and a compound fertilizer; the base layer is prepared from the following components in parts by weight: a kitchen waste ecological restoration base material carbon sequestration mixture B, planting soil, a soil adhesive, 100-mesh corn straw, biochar and a compound fertilizer. According to the method, pollution of the kitchen garbage to the environment is effectively reduced, the resource value of rich nutrients in the kitchen garbage is fully played, the functions of organic acid generated after the kitchen garbage is decomposed and arbuscular mycorrhiza for adjusting osmotic equilibrium and the like are fully played, the soil structure of the saline-alkali area can be improved, the soil fertility is improved, and the soil quality is improved. The salt tolerance of the plant is improved while the alkaline environment is improved.

The invention discloses a loess slope ecological protection vegetation substrate and a preparation method and a performance detection method thereof, and belongs to the technical field of slope ecological protection. The invention solves the problem of how to develop a novel slope ecological protection base material which is ecological, environment-friendly, good in vegetation effect and low in cost. The soil comprises a base material and plant seeds mixed in the base material, the use amount of the plant seeds is 20-30 g / m < 2 >, and the base material comprises the following components in parts by weight: 100-110 parts of loess, 20-30 parts of bentonite, 20-30 parts of bentonite, 20-30 parts of bentonite, 10- 4 to 10 parts of bentonite; 0.1 to 0.3 part of basalt fiber; 0.2 to 0.4 part of a water-retaining agent; 0.8-1.2 parts of an organic fertilizer; 0.5-0.8 part of a compound fertilizer; 2-3 parts of a microbial fertilizer; and 44-48 parts of water. Bentonite is used for replacing cement and other harmful binders, a natural soil system of the base material is maintained, the base material is more environmentally friendly, meanwhile, the water retention capacity of the base material is improved, the pH value of the base material does not need to be adjusted, plant growth is facilitated, the air permeability of the base material is improved through basalt fibers, the shearing performance, the crack resistance and the water stability of the base material are improved, and the service life of the base material is prolonged. And a stable growth environment is provided for vegetation.

The invention relates to the technical field of flower planting substrates, and discloses a general type flower fertilization-free planting substrate based on nitrogen-fixing, phosphorus-dissolving and potassium-dissolving bacteria, which comprises turfy soil, perlite, ground phosphate rock, straw, carbonized rice husk, humic acid, seaweed oligosaccharide, nitrogen-fixing bacteria, phosphorus-dissolving bacteria and potassium-dissolving bacteria. Turfy soil and perlite are used as a substrate and compounded with ground phosphate rock, straw, carbonized rice husks, humic acid, seaweed oligosaccharide, nitrogen-fixing bacteria, phosphate solubilizing bacteria and potassium solubilizing bacteria, the nitrogen-fixing bacteria provide nitrogen for flowers, and the phosphate solubilizing bacteria and the potassium solubilizing bacteria decompose phosphorus and potassium in the ground phosphate rock, the straw and the carbonized rice husks to provide nutrition for the flowers; the humic acid and the seaweed oligosaccharide have the effects of promoting rooting and growth of the flowers and breeding of beneficial microorganisms; all the internal components have a synergistic effect, the fertilization-free period is extremely long, essential elements for plants are still efficiently provided under the condition of no fertilization, the growth of the plants and the development of flowers are remarkably promoted, the use of toxic substances is reduced, meanwhile, the low incidence rate of diseases and insect pests is ensured, and better flower growth and ornamental effects are achieved on the whole.

The invention relates to lithium slag-based artificial soil based on different soil layer functions and a preparation method of the lithium slag-based artificial soil. The lithium slag-based artificial soil comprises a surface soil layer, a leaching layer, a deposition layer and a parent material layer according to soil profile layers. Compared with an existing technology for preparing artificial soil from solid waste materials such as lithium slag, red mud and coal gangue, the preparation process is simple, the cost is low, and the prepared soil is free of secondary pollution risk and is environmentally friendly; the preparation of the artificial soil of soil layers with different ecological functions in a soil profile configuration can be realized, so that the artificial soil meets the requirements of mine land reclamation and mine ecological restoration on the artificial soil with a stable soil body structure, the green restoration concept that lithium slag comes from a mine and then returns to the mine is embodied, and precious natural soil resources are not consumed; and a plurality of solid waste materials which are difficult to dispose can be recycled, the recovery and treatment cost of the mine ecological environment after mining is reduced, the pollution caused by solid waste stockpiling is reduced, and the ecological environment of a mining area and the surrounding of the mining area is improved.

To provide a culture soil for ericaceous plants, which can be rendered acidic without the use of peat moss and which enables harvesting of mushrooms.SOLUTION: A cultivation soil for ericaceous plants comprises bark chips and a fungus bed block or fungus bed powder containing saprobes.SELECTED DRAWING: None

A method of creating a wetland in a hot, arid, location includes identifying or establishing a channel of flowing water at the arid location, and installing therein a mat containing seeds, and / or seedlings, and a super absorbent polymer (SAP). Water from the channel is applied to hydrate the SAP, and both edible and dam-constructing vegetation is allowed to grow and mature from the seeds and / or seedlings. Beavers are then introduced into the arid location, which eat the edible vegetation and use the dam-constructing vegetation to construct at least one dam across the channel of flowing water, thereby forming a wetland that further encourages both the vegetation and the beavers to propagate. A perforated, transparent or translucent cover sheet can be placed on or suspended above the mat. A water barrier can be placed below the mat. The wetland vegetation cools and humidifies the environment by transpiration of water.

The invention relates to the technical field of soilless culture substrates, in particular to a soilless culture substrate based on biochar and mushroom dreg resource utilization and a preparation method and application of the soilless culture substrate. The soilless culture substrate comprises the following raw materials in parts by mass: 30-50 parts of mushroom dregs, 20-30 parts of charcoal, 10-15 parts of vermiculite, 8-12 parts of perlite, 5-10 parts of humic acid and 2-5 parts of trace elements. The soilless culture substrate can effectively utilize biochar and mushroom dreg resources, provides a good physical environment and sufficient nutrient supply for plant growth, improves the stress resistance and yield quality of plants, reduces dependence on traditional non-renewable substrate resources, and reduces the pressure of agricultural wastes on the environment.

The invention discloses a power grid tower footing area vegetation restoration method based on biological source humic acid and application of the power grid tower footing area vegetation restoration method, and belongs to the technical field of ecological restoration and soil treatment. The technology aims at solving the problems of soil erosion and loss caused by environmental disturbance conditions such as vegetation damage in power grid construction, and the technical scheme mainly comprises the steps of adopting a soil improvement technology based on HFA or combining the HFA with other bio-fertilizers for use, and configuring a formula for plants suitable for planting and a vegetation management strategy. The method mainly comprises the following steps: measuring various physical and chemical factors of a soil sample around a tower footing, comparing the physical and chemical factors with an average (normal) value of local soil, and formulating the HFA use amount and concentration according to the results; investigating site conditions such as local weather, terrain, soil properties and the like, native plants and suitable plants, and formulating a plant planting formula and a comprehensive vegetation management scheme capable of iteratively growing in different seasons. According to the method, the vegetation restoration speed and environmental protection are both considered, and vegetation restoration and ecological environment improvement can be rapidly achieved.

The invention relates to an in-situ soiling method for tailings of a mine tailing pond in use and application, and belongs to the resource utilization and ecological restoration technology of a tailing pond district, the in-situ soiling method comprises the following steps: step 1, leveling the tailings of the mine tailing pond in situ, turning over and loosening the tailings of 40cm on the surface layer, adding exogenous organic matters, and uniformly mixing to obtain a tailing matrix; 2, spraying a mine area soil plant rhizosphere bacterial liquid into the tailing matrix, and culturing in situ for 20-40 days to preliminarily form a soil-like matrix suitable for field planting of pioneer plants; 3, the pioneer herbaceous plants are sown, and functional microorganisms are inoculated. By means of the application of the method, all-season evergreen of reclamation vegetation in the in-use tailings pond and stable solidification and non-migration of heavy metal can be achieved, water and soil loss and environmental pollution of tailings are effectively controlled, and technical support is provided for large-area popularization of ecological restoration of non-ferrous metal tailings ponds in China.

The invention relates to the technical field of plant cultivation, and discloses a method for improving low-temperature and low-oxygen composite stress resistance of tobacco seedlings by exogenous amino acids, which comprises the following steps: selecting tobacco seedlings in a two-leaf and one-core stage of floating seedling raising; preparing an L-pyroglutamic acid mother solution; performing exogenous treatment on the selected tobacco seedlings in the two-leaf and one-core stage by using the prepared L-pyroglutamic acid mother liquor; after treatment is completed under the low-temperature and low-oxygen condition for 3 days, taking a picture of a tobacco seedling, recording phenotype, sampling roots, and measuring root length and root activity; according to measured values under the treatment of adding different volumes of L-pyroglutamic acid mother liquor with the concentration of 1g / L, data is sorted by software, difference significance analysis is carried out by data processing software, and comprehensive evaluation is carried out by a multi-character fuzzy membership function method. The application comprehensively evaluates the effect of the L-pyroglutamic acid in improving the low-temperature and low-oxygen stress resistance of the tobacco seedlings, and provides important theoretical basis and practical guidance for improving the crop stress resistance in agricultural production.