851 results about "Flora" patented technology

A method of assessing a state of a plant is provided. The method includes: (a) collecting data pertaining to at least one plant related parameter over a predetermined time period; and (b) analyzing the data collected over the predetermined time period to thereby identify a trend in the data over at least a portion of the predetermined time period, the trend being indicative of the state of the plant.

The invention provides a multifunctional soil nutrient conditioner formula with low cost, practicality and effectiveness and a preparation method thereof aiming at the technical problems. The production technology is simple, the production cost is low, and no harmful gas and sewage are generated during production. The product can effectively provide dozens of nutritive elements required for plant growth, is applied by being combined with a common fertilizer and an organic fertilizer, and can obviously improve the utilization rate of the fertilizer, so as to reduce the fertilizer input; and simultaneously the product can obviously stimulate action of beneficial floras of the soil, inhibit action of causal organisms, and increase the disease suppression of the soil and the resistance of plants, and then can effectively control generation of physiological diseases and soil-borne diseases, so as to reduce the pesticide input. The fertilizer input and the pesticide input can be reduced by more than 15 to 30 percent, and the yield can be increased by more than 15 to 30 percent, and simultaneously the product quality is obviously improved and cost conservation and synergism are obvious. Moreover, the soil improvement effect is obvious, and the sustainable utilization capacity can be obviously enhanced.

The invention discloses an organic matter decomposing inoculant, and a preparation method and application thereof. The organic matter decomposing inoculant comprises the following ingredients in part by weight: 10 to 20 parts of aspergillus niger microbial inoculum, 10 to 20 parts of lactobacillus plantarum microbial inoculum, 20 to 30 parts of saccharomyces cerevisiae microbial inoculum and 40 to 60 parts of bacillus subtilis microbial inoculum. The organic matter decomposing inoculant mainly comprises various microbial floras with mutual promotion and mutual synergy effects. The organic matter decomposing inoculant can decompose various organic matters quickly, can effectively kill germs, ova and weed seeds in the decomposed raw materials, can reduce diseases, weed and insect pests, andcan remove water and odor. The organic matter decomposing inoculant can stimulate growth and development of crops, can improve disease resistance, drought resistance and cold resistance, can increasesoil nutrients, can improve the soil structure, and can increase the utilization ratio of chemical fertilizer. The organic matter decomposing inoculant can be used directly and can also be used for producing commercial organic fertilizer, biological organic fertilizer, organic and inorganic complex fertilizer, biological organic and inorganic complex fertilizer and the like.

A system for the determination of the percentage of area of a parcel of land available for development or preservation which comprises at least one privately gathered data base having at least one file relating to at least one geographic area and its privately gathered corresponding map, physical, geographic, geologic, edaphic, and flora parameters present in and relating to said geographic area; a Software Decision Control Framework connected to the privately gathered data base; a Geographic Information System connected to and interacting with both the Software Decision Control Framework and the privately gathered data base; a network connected and interfaced to the Software Decision Control Framework and at least one data base interfaced with the network, the data base comprising physical, geographic, geologic, edaphic and flora parameters present in and relating to various geographic areas worldwide, whereby the Software Decision Control Framework interacts with the privately gathered data base, the Geographic Information System, the network and the database to provide an evaluation report which identifies, quantifies and establishes the percentage of area of the parcel of land for development and preservation in conformance to local, federal and state land use regulations and non-governmental land use policies.

The invention has supplied biological leaf fertilizer, whose characteristics is that it includes chemical agent, biological organic matter, chelating agent, penetrant and microbe fermentation liquor and the solid raw material and mess ratio are: urea50-55%, potassium dihydrogenphosphate20-25%, potassium chloride 7-8%, boric acid0.3-0.5%, boric acid0.2-0.4%, copper sulfate0.1-0.2%, calcium nitrate0.5-1.5%, magnesium sulfate0.2-0.4%, zinc sulfate0.2-0.4%, manganese sulphate0.2-0.3%, ammonium molybdate0.05-0.1%, fulvic acid14-15%, EDTA chelating agent1-2%, AEO-20 penetrant 0.05-0.1%, mix the raw material of the above mix water 160~70deg.C in the ratio of 2:3, after 24 hours, add microbe fermentation liquor into the liquid filtered by 0.5~1mL / kg, then adjust the PH value to 5.0~6.0, finally, obtain the invention. The leaf fertilizer contains lots of macroelements and all kinds of secondary and microelements, and also contains metabolic product of microbe fermentation, beneficial microbe flora,chelating agent, penetrant and growth regulating agent, without poison, smell and side effect, it is safe and reliable, can increase the quantity and quality of agricultural products.

The invention discloses a charcoal-based microbial soil conditioner. The charcoal-based microbial soil conditioner comprises, by weight, 80-85 parts of charcoal, 10-13 parts of a composite microbial flora and 1-2 parts of an oxidized starch adhesive, and the composite microbial flora comprises photosynthetic bacteria, actinomyces, lactic acid bacteria, microzyme, Bacillus subtilis and Bacillus thuringiensis. The invention also discloses a preparation method of the charcoal-based microbial soil conditioner. The combined effect of charcoal and microbes alleviates soil acidification, reduces the unit weight of soil and increases the permeability and the water content of soil; soil organic matter formation is promoted to improve the validity of mineral elements; and the abundance of microbes at the rhizosphere of crops is cultivated to improve the rhizospheric environment of plants in order to make pathogen microbes difficultly grow and breed, so the insect diseases of crops is reduced, and soil heavy metal pollution is alleviated and restored.

The invention discloses a method for biologically improving saline-alkali soil. The method includes the steps of 1, deep ploughing and deep tilling the saline-alkali soil and making the saline-alkali soil exposed under the sun, 2, digging wells to lower the underground water level, 3, constructing tall ridges, 4, adding biological modifiers and turning over the soil after the biological modifiers are evenly broadcasted to effectively increase organic matter and nutrients in the soil, loosen the soil, enrich microbial flora in the soil, increase activity of the soil, and neutralize saline and alkaline through some activated adsorption base ions in the modifiers, and 5, planting oats to absorb part of the base ions in the soil, convert the base ions into substances needed by growth of the oats and reduce the content of saline and alkaline of the soil. The method can be suitable for saline-alkali soil formed due to different factors, and the saline-alkali soil is improved through physical measures, water conservation measures, utilization of the biological modifiers and plantation of the oats. The method has the advantages that improvement economic benefits can be achieved early, operation is easy to conduct, promotional reproductively is high, improvement is sustainable, effects can be accumulated, in situ saline-alkali soil improvement can be achieved, and improvement cost is reduced.

The invention discloses a composite biological soil conditioner and a preparation method of the composite biological soil conditioner. The composite biological soil conditioner comprises the following steps: 1) preparing charcoal; 2) modifying the charcoal; 3) fermenting livestock excrement; 4) preparing an ecological organic fertilizer; 5) compounding, wherein the soil conditioner comprises the following materials in parts by weight: 130-150 parts of modified charcoal, 250-280 parts of the ecological organic fertilizer, 30-35 parts of humic acid, 5-8 parts of probiotics, 3-5 parts of active peptide, 32-38 parts of a water retaining agent, and 190-220 parts of an auxiliary. The composite biological soil conditioner has the beneficial effects that the soil conditioner not only strengthens the water holding capacity of soil, but also improves the soil structure, reduces the bulk density of the soil, increases the porosity and the content of organic matters in the soil, regulates the pH value of the soil, improves the microbial flora of the soil, inhibits the growth and propagation of pathogenic bacteria of a root system, and complexes and adsorbs the heavy metal ions in the soil, and therefore, the composite biological soil conditioner is a safe and efficient composite biological soil conditioner.

The invention discloses a nitrosation-anaerobic ammonoxidation single-stage biological denitrification method, the technology utilizes nitrosation flora with intensified active carbon as core after adding powdery active carbon and anaerobic ammonoxidation flora to generate composite granule sludge, and couples two reactions of nitrosation reaction and anaerobic ammonoxidation reaction, realizes biological denitrification reaction for transforming ammonia nitrogen into nitrogen in macrography. The invention is operated in one reactor at normal temperature without need of heating preprocessing waste water, saves energy, needs small accommodation area and reduces free nitrous cumulant of free nitrite to resist ammonia nitrogen with higher concentration. The invention adds powdery active carbon to form intensified granule sludge and self-cultures suspended sludge, thereby simplifying startup and running of the technology.

The invention discloses a detection system and method for intestinal flora and a dynamic database. The detection system for the intestinal flora comprises: an acquisition device, an analysis and processing device, a storage device and a data processing device, wherein the acquisition device is used for acquiring information of the intestinal flora; the analysis and processing device is used for carrying out amplification processing on the acquired information of intestinal flora to obtain data of intestinal flora at every time of individual detection; the storage device is used for storing the data of intestinal flora; and the data processing device is used for comparing the data of intestinal flora of individuals at each time with the total quantity of the intestinal flora in the storage device. According to the detection system, an examinee can know self intestinal health condition composition through detection of the intestinal flora, and the examinee can know a difference value between oneself and healthy crowd, and then regulates aspects of diet, exercise, living habits and the like, thereby improving the condition of the intestinal flora and the body health condition. According to the dynamic database, the capacity of the database can be expanded in real time to obtain detection parameters of excrement of different types of people at the newest period.

The invention discloses a preparation method of remediation flora for Cr (VI) contaminated site from sludge. The method uses sludge as the main source of bacteria strain and high-concentration organic wastewater as nutrient solution, which are supplemented by appropriate additives and subjected to special biochemical culture, so as to prepare corresponding remediation flora for quick remediation of the (Cr VI) contaminated site. The remediation flora can quickly and effectively remediate Cr (VI)-containing oil on the site.

The invention relates to an environment-friendly composite microbial preparation, preparation thereof, and application thereof to aquaculture. An environment-friendly composite microbial water purifying agent comprises the following components in percentage by weight: 20 to 40 percent of bacillus subtilis, 10 to 20 percent of bacillus licheniformis, 10 to 15 percent of bacillus megaterium, 10 to 15 percent of brevibacillus laterosporus, 5 to 10 percent of bacillus pumilus, 5 to 20 percent of bacillus coagulans and 2 percent of biological activating agent. The high-concentration composite microbial preparation is prepared by screening eight strains of probiotics by simulating the physiological functions of normal microbial flora in an aquaculture environment and through scientific compatibility, so that division and cooperation amount the bacterial strains can be realized, a biological enhancement technology can be combined with an indigenous flora activating technology, complex problems in a culture water body can be solved completely, the using amount is small, the cost is low, and the competitive advantage is remarkable.

The invention belongs to the field of manually planted Aquilaria senensis (Lour.) Gilg and relates to a microbial flora preparation for producing Chinese eaglewood wood and a matched bottle interpolation method. Eight endophytic strains of the Chinese eaglewood wood such as colored Botryodiplodia theobromae Pat are extracted and separated from natural Chinese eaglewood wood tissues, and are respectively disinfected and purified to obtain liquid flora preparations with Chinese eaglewood wood production capacity, and the obtained liquid flora preparations jointly act on the Aquilaria senensis (Lour.) Gilg. Meanwhile, the conventional matched infusion method is improvement on the bottle interpolation method; and by the ingenious bottle interpolation method, the disadvantages that a complete set of infusion apparatus is depended and the dripping speed is required to be constantly observed and adjusted in the conventional method are overcome. By the method, a microbial inoculum can be manually immersed into calluses of healthy Aquilaria senensis (Lour.) Gilg in batches and penetrate and infect protoxylem to promote a micro-circulation system in the protoxylem to secrete resin and produce the Chinese eaglewood wood in an abnormal metabolism mechanism.

The invention discloses a method for ecological restoration and water quality conservation of river water. according to the method, an aeration oxygenation system consists of a solar cell panel, a support connector, an air pump, an aeration tube and an air distribution plate and is used for maintaining the dissolved oxygen level in the water; an ecological floating bed system consists of a strong buoyancy carrier and an emergent aquatic plant and is used for removing pollutants out of water and gathering and transferring heavy metal; and a filler system is used for providing a lot of adhesion habitats for microbial flora, phytoplankton, protozoon and tiny metazoan so as to co-build and form a biological membrane which efficiently and quickly purifies the pollutants. By adopting the method, the organic matters such as COD, nitrogen, phosphorus and the like, and other pollutants in the water can be efficiently removed, the water is purified, an ecological system of the river way is improved, and the self-cleaning capacity of the water is restored.

The invention discloses a microorganism concrete brick and a preparation method thereof. The microorganism concrete brick is formed by mixing cement, gravel, sawdust (or straw scraps, scraps of paper, and the like), mixing mixed microorganism with water according to a certain proportion, forming by a mold and then naturally hardening, wherein the mixed microorganism comprises six floras including bacillus, nitrobacteria, photosynthetic bacteria, saccharomycetes, lactobacillus and actinomycetes. The microorganism concrete brick has excellent water quality purifying function, can continuously play roles for a long time, and is widely applicable to purify various water qualities such as rivers, lakes, canal water, swimming pools, fishponds and the like.

The invention provides a composite microbial flora and an enzyme product thereof, and a method of applying the composite microbial flora and the enzyme product thereof in soil restoration. The composite microbial flora is composed of a microbial flora and a bioactive enzyme, wherein the microbial flora is composed of bacillus subtilis, bacillus mucilaginosus, bacillus amyloliquefaciens, pediococcus pentosaceus, pichia farinose and pediococcus acidilactici, and the bioactive enzyme is composed of phytase, protein hydrolase, cellulose hydrolase and urease. Compared with the prior art, an effective microbial community and a microecological environment are constructed to realize biological catalysis and improve the content of organic matters and beneficial microbial flora in soil, and thus, the fertility of the soil is improved; biochemical degradation rate of soil pollutant can be substantially accelerated, digestion and biodegradation of the pollutant can be accelerated, and final inertial products like carbon dioxide, water and nitrogen are obtained; and toxic intermediate produced in the process of biochemical degradation can be rapidly removed, odor is eliminated, and emission of organic volatile matters (VOC) is reduced.

The invention discloses a culture method of a nitrosomonas sp. flora and a treatment method of waste water containing ammonia nitrogen. The ammonia nitrogen concentration and the pH value of a matrix are increased during an enrichment process, and free NH3 with higher concentration is maintained, thereby gradually achieving the purposes of eliminating nitrobacter sp. and enriching nitrosomonas sp. and obtaining a nitrosomonas sp. flora. Then, the obtained nitrosomonas sp. flora is taken as seeds, the expanded culture is carried out by utilizing self-prepared ammonia nitrogen waste water or high ammonia nitrogen waste water as a culture liquid, the nitrosomonas sp. flora after the expanded culture is inoculated into a biochemical treatment pool for improving the removal efficiency of ammonia nitrogen by biochemical treatment, or the nitrosomonas sp. flora after the expanded culture is directly used for removing the ammonia nitrogen of the ammonia nitrogen waste water, and the optimal proposal is used in the aerobic nitrification stage of the shortcut nitrification-denitrification process for accumulating nitrite nitrogen as an electron acceptor for denitrification directly. The method has simple process and outstanding effect of treating the waste water containing the ammonia nitrogen.

The invention provides a microbial fertilizer for improving saline alkali soil. The microbial fertilizer comprises the following raw materials in parts by weight: 45-55 parts of turf, 25-35 parts of Angel yeast residues, 5-15 parts of monoammonium phosphate, 5-15 parts of ammonium sulfate and 1-3 parts of a complex microbial inoculant. According to the microbial fertilizer provided by the invention, the microbial flora is in mutual promotion with organic matters and inorganic matters, the components supplement one another, the effective living bacteria count is not less than 50million per gram, the content of the organic matters is not less than 55 percent, the total nutrient is not less than 11 percent, the content of ammonium nitrogen is not less than 4 percent, the content of P2O5 is not less than 4 percent, the content of K2O is not less than 3 percent, and the pH value is 5.5-6.0. Under the co-actions of the components, the effects of rapidly reducing the soil salinity and alkalinity and increasing the content of organic matters, available phosphorus and ammonium nitrogen are achieved, and the conditions that the granular structure of the soil is poor, the soil permeability is reduced and the activity of the microbial flora is inhibited are improved.

The invention provides a method for purifying water quality of a circulating water factory aquacultural system and a composite microbial inoculum thereof. The method is to prepare three microbe composite florae into a unit preparation respectively, wherein a composite flora I consists of 30 to 50 percent of photosynthetic bacteria, 30 to 50 percent of bacillus, and 20 to 30 percent of lactobacillus; a composite flora II consists of 20 to 30 percent of photosynthetic bacteria, and 70 to 80 percent of nitrobacteria; a composite flora III consists of 20 to 40 percent of pseudomonad, 20 to 40 percent of the bacillus, 20 to 40 percent of alcaligenes, and 20 to 40 percent of paracoccus; and the three composite florae are used in the water quality purification treating process of the circulating water factory aquacultural system in working sections according to the proportion that the composite flora I is between 30 and 40 percent, the composite flora II is between 30 and 40 percent, and the composite flora III is between 30 and 40 percent. The florae with beneficial functions are harmonized and compensated with each other, so that high-efficiency degradation of pollutants and water body purification can be realized, the dissolved oxygen content can be improved, pH value can be stabilized, and yielding water can meet the requirement of aquaculture.

The invention discloses a biological salt-degrading bacterial fertilizer consisting of the following components by weight proportion: 0.0013 to 0.0045 portions of gibberellin, 0.00002 to 0.0002 portions of cytokinins, 15 to 35 portions of bacillus megaterium, 50 to 80 portions of salt-degrading flora, 5 to 15 portions of amino acid and 2 to 10 portions of humic acid. The materials are evenly mixed and air dried. The bacterial fertilizer is formed by being extracted from marine microorganisms, rejuvenation, expanding propagation and being remixed with a plurality of trace elements. The bacterial fertilizer is scientific in formulation and very strong in activity, can be widely applied to salt lick improvement and a secondary salinization treatment, improves and optimizes soil environment and improves the deteriorated soil environment caused by the long-term use of chemical fertilizers and salt containing organic fertilizers (dungs). The bacterial fertilizer can facilitate the development of the roots of crops and can improve the ability of absorbing night soil. By applying the biological salt-degrading bacterial fertilizer, the fertilizer can facilitate the even seedling, uniform seedling and strong seedling at the earlier stage of crops, the strong nutrient transmission capacity at the middle stage and no premature senescence at the later stage.

The invention discloses a liquid seaweed bio-fungus and a preparation process thereof. The liquid seaweed bio-fungus is compounded by the marine bio-fungus and three microbial floras including actinomycetes, lactobacillus and saccharomycetes. The process comprises the following steps: sterilizing the seaweeds at high temperature (over 100 DEG C), soaking, grinding and rubbing the seaweeds to prepare seaweed starch; proportionally mixing the seaweed starch with molasses, various auxiliaries, water and cultured fungus solution, stirring and then fermenting; and finally packaging. The preparation process of the invention is simple and is characterized by low production cost, high concentration and high survival rate. The liquid seaweed bio-fungus prepared by the process has the characteristics of high activity, quick absorption, high economic benefits and good social and environmental benefits.

The invention relates to a crop fertilizer, in particular to a refined biological organic fertilizer made by using poultry and livestock excrements and monosodium residues and the preparation method. The refined biological organic fertilizer comprises 30 to 50 percent of poultry and livestock excrements, 20 to 30 percent of monosodium residues, 10 to 30 brown coal, 2 to 8 percent of soybean powder, 2 to 5 percent bone powder, and 1 to 2 percent of rice bran; these components are made into biological organic fertilizers containing the essential nutrients of crops through the functions of a plurality of beneficial microorganism floras. The invention has the advantages of simple preparation method, low cost, no pollution, and can improve the quality of crops, therefore, the invention is an environmental friendly organic fertilizer and suitable for wide popularization.

The invention relates to the field of biological detection, in particular to a detection and analysis method and system for intestinal microbial florae. The detection and analysis method for the intestinal microbial florae comprises the steps as follows: acquiring an excrement sample; extracting total DNA of microbial flora genome in the excrement sample and performing PCR amplification on the total DNA; performing bioinformatic analysis based on sequencing data to obtain an analysis result; comparing the analysis result with a crowd intestinal microbial flora database to obtain an intestinalmicrobial flora state of a subject; and giving an adjustable index and a monitoring index correspondingly on the basis of the intestinal microbial flora state and the basic condition of the subject. Acorresponding intestinal nutrition structure adjustment suggestion is given on the basis of the detection result obtained by the detection and analysis method for the intestinal microbial florae, andthe internal health index of the subject is increased.

The invention discloses a method for quickly producing a bio-organic fertilizer by using tobacco stalks and the bio-organic fertilizer. The raw materials for producing the bio-organic fertilizer in the method comprise the following substances in percentage by weight: 30 to 70 percent of tobacco stalks subjected to steam explosion treatment, 20 to 50 percent of mixed accessories, 5 to 15 percent of conditioning agent and 1 to 5 percent of microbial flora; and the bio-organic fertilizer is prepared through an aerobic composting process, wherein the stacking C / N ratio is adjusted to be 25 to 35 / 1, the water content is adjusted to be 50 to 65 percent, the pH is controlled to be 5.0 to 8.5, the strip stamping height is 1.0 to 1.5 m, and the tobacco stalks are crushed, screened and packaged after reaching a maturity index. The method has the characteristics of fast treatment, high efficiency and fast maturity, and has an important practical significance for fully using wasted tobacco stalk resources, improving the ecological environment of tobacco planting areas and reducing environmental pollution. The bio-organic fertilizer has high organic content, has the effects of improving the soil structure and improving the soil fertility, and can be widely used for planting economic crops of tobaccos, vegetables and the like.

The invention belongs to the applied biology technical field, and relates to a water environmental microbiology reparation agent and a preparation method thereof. The reparation agent has the mass percent of the components in the microbiology total weight as follows: bacillus subtilis is 30-40 percent, bacillus licheniformis is 30-40 percent, ray fungi is 10-20 percent, denitrifying bacterium is 10-20 percent, and photosynthetic bacterium is 10-20 percent. The microbiology preparation of the invention has strong adaptability, can compensate the water body original bacterium when being put in water, quickly form the preponderant flora in the water body, produce the high-activity biological enzymes for quickening the decomposition of the left diet and the animal wastes, and produce the antibiotic substance to restrain the growing of harmful bacterium and reduce the occurrence of the illness as well as ensure the production of green marine products.

Production of aquaculture water for marine fauna and flora, prepared by seawater disinfected by electrolysis in an electrolytic treatment system and neutralized with a neutralization agent to eliminate deleterious effects to growth of microalgae.

The invention discloses a microbial sustained-release sphere for soil repairing, and belongs to the technical field of soil repairing. The microbial sustained-release sphere comprises a sustained-release sphere, wherein the sustained-release sphere comprises an inner water-soluble membrane, and the inside of the inner water-soluble membrane coats a plurality of microbial carrier spheres and microbial degradable plastic film spheres, which are distributed alternately; soil repairing microbial flora is adhered to the microbial carrier spheres; the microbial degradable plastic film spheres are filled with hydrogen peroxide; a plurality of straw fiber ropes which are uniformly distributed are fixedly connected on the inner wall of the inner water-soluble membrane, and are in a puffed shape; after being dosed into soil, the sustained-release spheres can be gradually degraded under the moisture effect along with time passing for constantly repairing the soil, the number of microbes can be constantly ensured, multiple dosage is not required, labor and materials can be saved, and the using method is diversified since the microbial sustained-release spheres can be dosed into soil optionallyin a turbid liquid manner.

The method for realizing short distance nitration at the normal temperature by using an entire journey nitration biological denitrification system belongs to the field of the wastewater enhancing biological denitrification treating technique. At present, the realization of nearly all short distance nitration is carried out in the medium-high temperature state; the short distance nitration is difficult to start in the medium-low temperature and the starting period is long, which greatly limits the actual application of the nitration denitrifacation. In the method, the sludge age is controlled to be 50-60 days; the whole process is divided into four stages; each stage uses an aeration mode with constant air supply; the DO level is controlled to be 0.5-0.8 mg / L; the initial stage of the experiment uses timing control aeration time; and finally, the aeration is finished at an ammonia valley point of a pH curve. The invention provides a method for regulating and controlling the competitive advantage of nitration flora AOB and NOB in a sewage treating system at the normal temperature. In addition, the invention is started by the common entire journey nitration sludge which maintains the short distance nitration, thus being more in line with the practical running of the sludge treating factory and has very strong directive significance in the short distance denitrification application of the practical project.

The invention provides a microbial soil conditioner. The microbial soil conditioner comprises the following raw materials: an organism carrier, bacillus amyloliquefaciens with the concentration higher than or equal to 2 billion cfu / g, bacillus mucilaginosus with the concentration being 0.15-0.3 billion cfu / g, trichoderma harzianum with the concentration being 30-100 million cfu / g, paecilomyces lilacinus with the concentration being 10-50 million cfu / g and streptomyces griseus with the concentration being 10-50 million cfu / g. The invention further provides a preparation method of the microbial soil conditioner. The preparation method comprises an organism carrier preparation step and a finished product preparation step. The microbial soil conditioner can activate beneficial microbial flora of local soil, form a PGPR (plant growth promoting rhinoacteria) action with the beneficial microbial flora, enhance the activity of a plant root system, promote growth and effectively control pest and disease damage; the preparation method is simple and convenient to use.

The invention relates to a method for remedying the nitrate pollution of underground water in situ with maize straws, which is characterized in that maize straws or a maize straw hydrolysate serving as a denitrification carbon source and flora-enriched liquid rich in denitrifying bacteria florae are added in nitrate polluted underground water to remove nitrate nitrogen from underground water through bio-denitrification. The method realizes the harmless use of biomass maize straws and remedies the nitrate pollution of underground water effectively.