90results about How to "Improve community structure" patented technology

The invention discloses a polysporus trichoderma (Hypocrea pachybasioide) FSR-97 strain, wherein the preservation unit is China General Microbiological Culture Collection Center, the preservation date is 19, September, 2014 and the preservation number is CGMCC No.9691. The strain is cultured on a potato dextrose agar culture medium (PDA) plate at 25 DEG C and rapidly grows, and a monospore is germinated to form a white bacterial colony; the colour on the back surface of the bacterial colony is transited from colourless to yellow. The polysporus trichoderma (Hypocrea pachybasioide) FSR-97 has an effective broad-spectrum antibacterial effect on the main pathogenic bacteria causing the panaxginsen fusarium rot, epidemic disease, sclerotiniose, root rust rot, black spot, rhizoctonia solani, and botrytis. The invention further discloses a plurality of biocontrol mechanisms of the polysporus trichoderma (Hypocrea pachybasioide) FSR-97 for preventing and controlling the plant fungous disease, and an application for preparing a microbial preparation to prevent and control the plant fungous disease.

The invention belongs to the technical field of soil remediation, and particularly relates to a remediation method of heavy metal contaminated cultivated land, which comprises the following steps: firstly, deeply ploughing soil and uniformly mixing a heavy metal improver with the soil to improve the soil, and then fertilizing the soil. The method provided by the invention can remarkably reduce theeffectiveness of heavy metals in soil and reduce the influence of the heavy metals on the product quality, and can improve the soil fertility and increase the yield and quality of crops by adopting amode of planting green manure or applying an organic fertilizer.

The invention discloses a special lecithin-coated slow release fertilizer for cotton. The slow release fertilizer is prepared from the following raw materials: urea, monoammonium phosphate, potassium chloride, ammonium chloride, superphosphate, zinc sulfate, borax, lecithin and amidinothiourea; and the production method of the slow release fertilizer comprises the steps of: firstly, granulating monoammonium phosphate, potassium chloride, ammonium chloride, superphosphate, zinc sulfate, borax and most part of urea (used after fusion) to form inner-layer particles; then spraying mixture of the rest of urea (used after fusion) and amidinothiourea on the inner-layer particles; and coating the outer layer with lecithin. As a sustained-release material (lecithin) and a controlled-release material which is amidinothiourea serving as a urease inhibitor and a nitrification inhibitor are selected and used in the slow release fertilizer, the effective period of a nitrogenous fertilizer is prolonged to 121 days from about 30 days, the effective period of the nitrogenous fertilizer is prolonged greatly, the utilization rate of the nitrogenous fertilizer for cotton is improved greatly, the utilization rate of the nitrogenous fertilizer in a cotton season is improved by 37%, the fixation and the loss of a phosphorus potassium fertilizer are reduced, and the utilization rate of the phosphorus potassium fertilizer in a cotton season is improved by 13% and 5% respectively.

The invention provides a carbon-based bio-organic fertilizer and a preparation method thereof, and the carbon-based bio-organic fertilizer is based on biochar and amino acids. Organic materials are uniformly mixed, and inoculated into a microbial fermentation liquid having the functions of promoting growth and antagonizing pathogenic bacteria. The organic materials comprise 20-30% by mass of the biochar, 30-40% by mass of amino acid powder and 40-50% by mass of pig manure rice straw compost, and the quantity of a functional microorganism is 0.5-80 million / g. The carbon-based bio-organic fertilizer prepared by the method can inhibit the amount of soil-borne pathogens in soil, reduces the incidence of the soil-borne diseases in crops, increases the content of effective nutrients in the soil,promotes crop growth, and increases yield.

The invention discloses a method for remedying soil polluted by organo-chlorine pesticides (OCPs) on the basis of the solubilization, elution and microorganism strengthening effects of a surface active agent. The method includes the steps that firstly, soil is cleaned once on the basis of the solubilization and elution effects of the surface active agent so that over 85% of OCPs in the soil can be removed; the cleaned soil is directly stacked at the ventilated location of a work shed, the residual surface active agent is used for improving the community structure and activity of indigenous microorganisms and strengthening the indigenous microorganisms to degrade residual OCPs in the soil, and finally the soil meets the environmental safety standard. The method is easy to implement, economical, efficient, environmentally friendly and safe, and can be applied to remediation of OCPs organic polluted sites / soil on a large scale.

The invention provides a compound mixed biological bacterial fertilizer for restoring cadmium contaminated soil; the compound mixed biological bacterial fertilizer includes NPK nutritious components and agricultural rare earth nitrate, a catalyst waste agent, a microbial agent, a humic acid mineral powder, sepiolite, plant ash, kaolin and zeolite with proper proportion; after the compound mixed biological bacterial fertilizer is applied to the cadmium contaminated soil, under the synergy of all the components, the contaminated soil is effectively restored while cadmium in the soil is effectively passivated and immobilized, the cadmium activity in the soil is decreased significantly, and the absorption of crops on cadmium is facilitated to be reduced, so as to make the cadmium content in the crops decreased significantly; the compound improver has relatively good stability and environmental friendly characteristic, does not produce secondary pollution, and is low in cost and prone to large-area promotion; when the compound mixed biological bacterial fertilizer is applied to the cadmium contaminated soil, the application amount is only 10-200 kg / hm<2>, the cadmium content in the crops can be significantly reduced, and the crops are allowed to meet national edible safety standards.

The invention discloses a microbial liquid fungicide containing pantoea alhagi. The microbial liquid fungicide containing the pantoea alhagi comprises the following components in percentages by mass:1-10% of promoting growth bacteria fluid, 0.1-10% of polyglutamic acid, 50-70% of biological organic matters and the balance of water or aqueous solution. The promoting growth bacteria fluid comprisespantoea alhagi fluid. The invention further discloses a preparation method and application of the composite microbial liquid fungicide. The composite microbial liquid fungicide has a high-activity biological function, wherein the polyglutamic acid, the biological organic matters and a microbial agent have a synergistic effect, a microbiome environment of root systems of crops can be improved, thenumber of beneficial microorganisms in soil is increased, the quality of the crops can be improved, the yield is increased, and resistance against disadvantages such as drought resistance, salt resistance, cold resistance and disease resistance of the crops is enhanced.

The invention discloses bacillus amyloliquefaciens. The bacillus amyloliquefaciens has the classification and name of Bacillus amyloliquefaciens Y14 and is preserved in China General Microbiological Culture Collection Center (CGMCC for short) on November 10th, 2016 with the preservation address of Microbiology Research Institute of China Science Academe, No.3, Courtyard 1, Beichen West Road, Chaoyang District, Beijing and the preservation number of CGMCC NO.13258. The strain has good inhibitory effect on pathogenic bacteria of southern blight and also can induce resistance of a botanical system, iron nutrition is provided for peanuts, a soil microbial community structure also can be improved, and a strong guarantee is provided for production of the peanuts.

The invention relates to a method for improving the soil fertility through kitchen waste organic acid fermentation liquor, and belongs to the field of soil improvement. The method comprises the steps that firstly, kitchen waste is pretreated, and smashed after being blended with water with the solid-to-liquid ratio being 1:1-1:2, so that kitchen waste slurry is obtained; secondly, an anaerobic fermentation tank is loaded with the kitchen waste slurry for anaerobic fermentation at the room temperature, and the kitchen waste organic acid fermentation liquor is obtained; and the kitchen waste organic acid fermentation liquor in the anaerobic fermentation tank is taken out, centrifuged or press-filtered, after supernate is filterd out of a film, and a fermentation liquor liquid fertilizer is obtained and used for improving the soil fertility. Compared with the prior art, the kitchen waste used in the method is low in price and easy to obtain, and waste utilization is achieved. The fermentation liquor liquid fertilizer obtained through the method can be used for increasing the contents of nitrogen, phosphorus, potassium, amino acid, organic acid and protein in soil, enhancing the effect of killing pathogenic bacteria in the soil, improving the microbial flora structure of the soil, and improving the soil fertility. According to the fermentation liquor liquid fertilizer obtained through the method, operation is easy, and large-scale preparation can be achieved.

The invention relates to a biological pesticide-added fertilizer and a preparation method thereof. The pesticide-added fertilizer is prepared from plant extract residue which comprises one of or a mixture of more than two of lightyellow sophora root extract residue, sophora alopecuroides L. extract residue and black false hellebore extract residue. According to the biological pesticide-added fertilizer, the organic solid waste resources are utilized thoroughly, the production cost is reduced and efficient utilization of the waste resources is realized; in the production process of the biological pesticide-added fertilizer, the environment-friendly effect is achieved, the discharge of wastewater and waste gas can be avoided, and the energy-saving, efficient and low-carbon effects are achieved; the biological pesticide-added fertilizer product is comprehensive and balanced in nutrition without any chemical pesticide and hormone addition, and has a good control effect on a plurality of soil-borne diseases and soil insects; the pesticide-added fertilizer is capable of fundamentally improving the physical and chemical properties of the soil and optimizing the structure of the microflora, and has efficient and lasting fertilizer efficiency and pesticide effect.

The invention belongs to the technical field of edible fungi cultivation and particularly relates to a saline-alkali soil morchella culturing method. The saline-alkali soil morchella culturing methodis implemented through the following steps of (1) seed fungi selection, (2) seed fungi preparation, (3) cultivation facility preparation, (4) ground processing, (5) sowing and nutrition supplementation, (6) construction of small greenhouses, (7) fruiting and harvesting management and (8) fungi residue returning. By means of the saline-alkali soil morchella culturing method, the adaptability of mycelia can be enhanced; a three-layer greenhouse culture mode is applied for the first time to facilitate temperature control and shorten the culture time; supplementation of culture mediums facilitatesrapid growth restoration of the mycelia; an applied bag arranging manner can simplify culture processes and save labor and material costs. The saline-alkali soil morchella culturing method can effectively reduce the salinity content of soil; fungus growth can improve the soil structure, avoid re-salinization and improve the pH environment of soil; nutrient bags are returned to fields to improve the content of organic matters in soil and accordingly improve the fertility of soil, the land utilization rate as well as the economic benefits of morchella.

The invention relates to a biology strengthening technology to improve oily wastewater processing system stability. It tests the waste quality, system running parameter and key biological indicator by ERIC-PCR. It selects microbiology compound fungus agent or the compound, when system running normally, enduring high load or impacted by toxic pollutant, according 1013-1015 per cubic meter, adding 1013-1016 live fungus special effect degradation functional fungus, adding compound microbiology fungus agent or the compound into the system, controlling system parameter: dissolved oxygen 2-5mg / L, taking water pH 6.5-9.0, inner system pH 6.5-8.5, biomass 109-1016CFU, and dehydrase activity 10U. The invention realizes optimal control to process system, fully improves dislodging efficiency and stability of the process system. And it also achieves high environment social and economic benefits.

The invention discloses a polyglutamic acid gel micrococcus agent.A microorganism, a glycidyl methacrylate modified gama-polyglutamic acid, a photoinitiator, and water are used as dispersion phases, ahexadecane and a span 80 are used as continuous phases, droplet-based microfluidics technology is adopted to prepare microspheres, the sizes of themicrospheresare between 100 to 500 [mu]m. The invention further discloses preparation method and application of the polyglutamic acid gel micrococci agent. According to the polyglutamic acid gel microspheres,anembedding microbial agent can be released,the effective period of the high effective viable count can be prolonged, high activity biological function is realized, colonization of the functional microbial agent in the soil is advantageous, avariety of crop diseasescan be effectivelyprevented and controlled, the using amounts of chemical pesticides and chemical fertilizers are decreased, biological control and chemical control areeffectively combined, strengths are taken to offset weaknesses, integrated crop prevention and control is realized, and time and effort are saved.

The invention belongs to the technical field of soil remediation, and provides a contaminated soil-based soil conditioner which comprises the following components in parts by weight: 50-100 parts of plant ash, 50-100 parts of quick lime, 30-80 parts of an organic fertilizer, 40-70 parts of a calcium magnesium phosphate fertilizer, 20-60 parts of zeolite, 5-10 parts of a compound microbial agent, 0.5-1 part of biomass charcoal and 1-2 parts of urea. The contaminated soil-based soil conditioner integrates plant ash, quick lime, organic fertilizer, calcium magnesium phosphate, zeolite fertilizer,composite microbial agent, biomass charcoal and urea, not only is simple in material obtaining and low in cost, but also is good in remediation effect on heavy metal contaminated soil and quick in effect taking, and meanwhile, the soil fertility is improved.

The invention provides a landfill leachate treatment method, which comprises the steps: landfill leachate to be treated is sent into a microbial electrolysis cell reactor to undergo microbial electrochemical reaction; effluent after the microbial electrochemical reaction is sent into an anoxic denitrification reactor to undergo anoxic denitrification reaction; effluent after the anoxic denitrification reaction is sent into a partial nitrification reactor to undergo partial nitrification reaction; effluent after the partial nitrification reaction is sent into an anaerobic ammonia oxidation reactor to undergo anaerobic ammonia oxidation reaction; after being sequentially reacted and treated by the steps, the landfill leachate is directly drained. The landfill leachate treatment method disclosed by the invention can remove organic pollutions of the landfill leachate in high efficiency and denitrify in high efficiency, so that the treated landfill leachate can stably reach the standard. Inaddition, when the technology disclosed by the invention is utilized to treat the landfill leachate, operation energy consumption and later sludge treatment cost are further saved.

The invention provides a composition with functions of resistance and control of a nitrogen and phosphorus loss of protected horticultural vegetable fields and improvement of soil fertility. The composition comprises 30 to 50 parts of modified straw powder, 20 to 30 parts of biocoke, 15 to 25 parts of shell powder, 10 to 15 parts of bentonite, 5 to 10 parts of chitooligosaccharides and 10 to 15 parts of edible mushroom residues. Through use of strong adsorption of modified straw powder, chemical fixing action of shell powder to phosphorus, fixing action of bentonite to ammonium nitrogen, and denitrification transformation and microbial conversion of nitrate nitrogen based on denitrification bacteria in soil at a high carbon-nitrogen ratio, nitrogen and phosphorus effective use is improvedand the nitrogen and phosphorus loss can be effectively inhibited and controlled under synergism. The composition improves physico-chemical properties of soil and soil fertility, activates soil microbial activity, improves nitrogen and phosphorus availability of soil, reduces fertilizer application and saves a cost.

The invention discloses a method for jointly increasing coalbed methane of external direct-current electric fields and micro-biological degradation. The method includes the steps that (1) relative information of coal reservoir geology and microorganism is collected, and high solution bacteria are enriched; (2) well drilling is conducted, and a producing pattern is established; (3) a culture solution is fractured and injected into; (4) a direct current electric network is established; and (5) the high solution bacteria are injected, the electric field network is activated, and coalbed methane jointincreasing ofthe external direct-current electric fields and micro-biological degradation is achieved. According to themethod for jointly increasing the coalbed methane ofthe external direct-current electric fields and micro-biological degradation, in situ microbial flora more suitable for a target coal seam is used, the culture solution is used to fracture a coal reservoir and injected into, by simulation of the external electric fields, the structure and the activity of the microbial flora are improved, thus conversion of biogenic methane of coal is promoted, the reserves of the coal bed methane are improved, the permeability of the coal bed is improved, and the recovery efficiency of the coal bed methane is improved.

The invention belongs to the technical field of water quality purification for aquaculture ponds, and specifically relates to a water quality purifier for aquaculture ponds, and also relates to a preparation method of the water quality purifier for aquaculture ponds. The water quality purifying agent for aquaculture ponds of the present invention is prepared from the following components: potato leaves, dandelion, glutinous rice flour, purslane, white myrtle, attapulgite, fly ash, toon bark, humic acid, xanthan gum . The advantage of the present invention is that the water purifying agent prepared by the present invention can effectively purify pond water without causing secondary pollution.

The invention relates to a method for preventing soil-borne diseases of crops by using ammonium-reinforced biogas slurry. The method comprises the specific steps as follows: a leisure period of a greenhouse after planting, harvest and cleaning is selected for turn over the soil; ridging is performed in the greenhouse along the periphery, the height of the ridge ranges from 15 cm to 20 cm, and the width ranges from 15 cm to 20 cm; anaerobic fermentation raw materials for biogas engineering are introduced into an anaerobic fermentation tank for fermentation, discharged fresh biogas slurry which is fermented for more than 25 days is taken to be injected into a biogas slurry storage pool and stirred to a suspension state, during stirring, ammonium sulfate is added to dissolve the slurry completely, and the concentration of ammonium nitrogen in the biogas slurry is regulated to 1000 mg / L; the biogas slurry in the biogas slurry storage pool is pumped out and introduced into the greenhouse for flood irrigation, at least 10 cm biogas slurry is kept on the surface of the soil layer within the flooding period, when the liquid level drops due to evaporation or infiltration, the biogas slurry is introduced repeatedly until the flooding period is over, and then natural ventilation or air-cure is performed; and when the moisture content of the soil reaches 15%-25%, the ridge is tilled, and the soil is turned over for ridging combined with a base fertilizer.

The invention provides hydroxyapatite and a preparation method thereof, and new application of the hydroxyapatite in dark fermentation hydrogen production. Hydroxyapatite is added into a dark fermentation hydrogen production system, so that the H2 yield is increased. By adopting a calcining means, the problems of large particle size, non-uniformity and agglomeration in the traditional preparation method can be effectively avoided; the obtained hydroxyapatite particles have high biological activity and good application prospects. The hydroxyapatite is applied to the dark fermentation hydrogen production process, so that the defects of low microorganism quantity, low enrichment capacity, insufficient trace elements, poor enzyme activity and the like in the fermentation process can be overcome; the hydrogen yield of a dark fermentation system is improved by enriching anaerobic fermentation bacteria, promoting the formation of a biological membrane, providing necessary elements and excellent places for the growth and reproduction of microorganisms and the like.

The invention discloses an inner-pond circulating aquaculture method capable of regulating dissolved oxygen of the aquaculture water body. The method comprises the steps of S1, building a dissolved oxygen change curve in a computer; S2, controlling a water pushing machine to conduct daytime oxygenation work at 6:00-18:00; S3, controlling bottom oxygenation equipment to conduct nighttime oxygenation work at 18:00-3:00; S4, controlling pure oxygen equipment and the bottom oxygenation equipment to conduct morning oxygenation work at 3:00-6:00; S5, regulating the dissolved oxygen of the aquaculture water body through the computer. The invention further discloses an inner-pond circulating aquaculture system capable of regulating the dissolved oxygen of the aquaculture water body. According to the method, by precisely regulating the dissolved oxygen of the aquaculture water body, it is achieved that the dissolved oxygen of the aquaculture water body is at 5 mg / L or above for 24 h every day,the aquaculture environment is improved, and the aquaculture cost and equipment energy consumption are lowered.

The invention relates to a salt-tolerant antagonistic bacterium M4-1 as well as preparation and application of a bactericide of the salt-tolerant antagonistic bacterium M4-1. The salt-tolerant antagonistic bacterium M4-1 is preserved in the general microbiological center of the China Microbiological Culture Collection Committee, and the preservation number is CGMCC No. 15774; the salt tolerance ofa bacterial strain is relatively high, the bacterial strain can stably colonize in the saline alkali soil, can survive in a liquid water-soluble fertilizer and a solid water-soluble fertilizer, and keeps a higher survival rate; the antibacterial spectrum of the bacterial strain is relatively wide, the bactericide prepared by using the bacterial strain has a better effect on preventing and controlling the root rot diseases of crops like wheat, corn, vegetables and fruit trees and other soil borne diseases; the fermentation property of the bacterial strain is excellent, the preparation processof the bactericide is simple, the cost is low, and the bactericide is favorable for industrial production and transportation.

The invention discloses a bacillus amyliquefaciens strain HY-05 with classification and nomenclature of bacillus megaterium (bacillus amyliquefaciens), which is sent to China Center for Type Culture Collection in Wuhan with the accession number of CCTCCM2015697 at November 20, 2015. HY-05 bacterial strain has good biological prevention and control function for pathogenic bacteria in continuous cropping land and the land with serious disease. The continuous breeding of HY-05 bacterial strain can inhibit the breeding of pathogenic bacteria, so that the soil microbial community structure is improved, the stress resistance of crop is improved, the crop yield is increased, the application amount of chemical agent is reduced, the ecological environment is protected, and the agriculture continuable development is promoted. The bacterial strain has good promotional value.

The invention discloses an organic fertilizer for preventing soft rot disease of orchids prepared by using traditional Chinese medicine residues as a raw material and a method of preparation. The organic fertilizer is prepared by the following steps: enzyme extraction of the traditional Chinese medicine residues, and compost treatment is carried out; the traditional Chinese medicine residues comprise the following components in parts by weight: 8-12 parts of herb residues of isatis root, 8-12 parts of herb residues of dandelion, 3-6 parts of herb residues of coptis roots, 3-6 parts of herb residues of scutellaria roots, 5-10 parts of herb residues of purslane herbs, and 5-10 parts of herb residues of pulsatilla roots. The traditional Chinese medicine residues are changed from waste into valuables, organic fertilizer can effectively improve physical and chemical structures of soil, supplement various organic and mineral nutrition for soil, optimize soil microbial community structure of soil, promote growth of plants, and control soft rot diseases of orchids.

The invention discloses a camellia oleifera cultivation method. The method includes: selecting land, preparing soil, selecting seedlings, planting and performing field management. The method has the advantages that lime and lime sulfur are added during soil preparing to prevent diseases and pests; base fertilizer used in the method is combined by biogas manure and compound fertilizer and can increase the content of nitrogen, phosphorus, potassium, organic matter, microbial carbon and oxygen in soil so as to improve the biological features of soil; leguminous plants are interplanted between every two rows of camellia oleifera, nitrogen fixation and soil fertility increasing can be achieved, the community structure of the soil microorganisms of the camellia oleifera can be improved, a good growth environment is provided for the camellia oleifera through reasonable weeding, fertilizing, shaping and pruning, normal shoot growth and flower bud differentiation are promoted, and early flowering and fruiting is achieved.

A soil modifier is disclosed. The soil modifier includes following raw materials by weight: 10-20 parts of livestock and poultry manure, 15-25 parts of bentonite, 12-23 parts of sepiolite, 8-16 partsof lobster shell enzymatic hydrolysate, 9-14 parts of plant straw, 7-11 parts of wheat hulls, 8-14 parts of modified plant ash, 5-12 parts of modified bamboo powder, 2-3 parts of humic acid, 1-2 partsof alpha-hydroxy acid, 2-4 parts of cane sugar, and 0.5-1 part of a mixed microbial agent. The soil modifier can improve soil hardening, improve soil ecological environment, increase organic mattersof soil, prevent plant diseases and pests and increase the yield.

The invention discloses a composite microbial agent and a preparation method and application thereof. The composite microbial agent is prepared by uniformly mixing a cellulose decomposition strain, alignin decomposition strain, protein and a starch degradation strain, wherein the cellulose decomposition strain is one or more of ginseng bacillus, bacillus megatherium and bacillus aryabhattai, thelignin decomposition strain is Klebsiella, and the protein and starch degradation strains are one or more of bacillus thuringiensis, lysine borate bacillus, bacillus licheniformis and bacillus acidophilus. According to the invention, the microbial agent is selected to prevent and treat greenhouse vegetable continuous cropping obstacles, and related functional microorganisms are utilized to condition the nutritional status and microbial structure of the continuous cropping soil, so that the stress resistance of crops is improved, and the purpose of eliminating the continuous cropping obstaclescan be achieved.

The invention discloses a biological organic medical fertilizer using brucea javanica oil residue as a raw material and a composting method thereof, and belongs to the technical field of fertilizer preparation. The biological organic medical fertilizer comprises the following raw materials: 70-90 parts of chicken manure, 30-50 parts of the brucea javanica oil residue, 20-40 parts of waste residue, 20-35 parts of Dregs of tea-oil tree fruit, 10-20 parts of derris root powder, 5-10 parts of biological bacteria, 1-3 parts of trace elements and 1-3 parts of additives. The biological organic medical fertilizer is made by crushing, sieving, mixing, stirring, fermentation, ageing, drying and other steps, The biological organic medical fertilizer can effectively control soil diseases and insect pests, and balances nutrition, enhances crop immunity, and increases the yield of crops; the biological organic medical fertilizer is ecological and environmentally-friendly, can improve soil structure, and has no pollution to the environment.

The invention relates to a method for improving soil physical and chemical properties of continuous cropping crops in a greenhouse. Under sunlight illumination, the temperature and humidity of the greenhouse are rapidly increased, the air temperature and the ground temperature can reach 60 DEG C and 40 DEG C, and the temperature increase range is about 10-20 DEG C, which is maintained for a certain period of time so as to kill soil bacteria and improve a soil structure; the community structure of plant root microorganisms is improved, beneficial bacteria becomes dominant strains, and a soil environment is effectively improved; soil salt accumulation is reduced, soil physical and chemical properties are improved, and soil nutrients are balanced; an enzyme activity is reduced; after water pouring high temperature greenhouse suffocation treatment, a certain repairing effect on greenhouse continuous cropping soil is achieved, and the method has a certain promoting effect on the growth of crops of second stubble, increases crop yield and improves economic benefits.

The invention provides a landfill leachate treatment device. The device is formed by four treatment units such as a microbial electrolysis cell reactor, an anoxic denitrification reactor, a partial nitrification reactor and an anaerobic ammonia oxidation reactor which are sequentially in serial connection, wherein the microbial electrolysis cell reactor is provided with a water inlet end and a water outlet end for landfill leachate, the water outlet end of the microbial electrolysis cell reactor is connected with a water inlet end of the anoxic denitrification reactor, a water outlet end of the anoxic denitrification reactor is connected with a water inlet end of the partial nitrification reactor, a water outlet of the partial nitrification reactor is connected with a water inlet end of the anaerobic ammonia oxidation reactor, and a water outlet end of the anaerobic ammonia oxidation reactor is connected with a draining opening or a lower-level treatment unit. The treatment device canremove organic pollutions of the landfill leachate in high efficiency and denitrify in high efficiency, so that the treated landfill leachate can stably reach the standard. In addition, when the device disclosed by the invention is utilized to treat the landfill leachate, operation energy consumption and later sludge treatment cost are further saved.