35 results about "Soil enzyme" patented technology

The invention relates to the technical field of forest fertilization, in particular to a forest precise fertilization decision-making method and system based on soil nutrient profit and loss, and the method comprises the steps: obtaining basic information of a target forest land, and dividing forest growth stages based on the basic information; the method comprises the following steps: collecting an undisturbed soil sample and a mixed soil sample of a 0-40cm soil layer of a target forest land by adopting an S-shaped point distribution method, separating the mixed soil sample, and respectively measuring the soil nutrient content, the bioavailability, the soil enzyme activity and the microbial functional gene. According to the method, by measuring the dimension indexes, constructing a five-dimensional profit and loss evaluation index system for determining the reference value and dynamically adjusting the weight according to the forest land data, calculating the comprehensive profit and loss index, judging the nutrient state and generating the personalized fertilization scheme, the defects that an existing fertilization scheme is single in basis index and lacks an effective dynamic adjustment link are effectively overcome; the requirements of multi-generation continuous planting forest land are met, and the environmental risks such as fertilizer waste, soil acidification and water eutrophication are effectively reduced.

The invention discloses a trans-boundary synthetic flora (SMC) for preventing and treating wheat stem rot as well as preparation and application of the trans-boundary synthetic flora. The synthetic bacterial flora is prepared by compounding Trichoderma harzianum T19 with the preservation number of CCTCC (China Center for Type Culture Collection) No: M 20251896, bacillus subtilis BS-Z15 with the preservation number of CCTCC No: M 20251892, two strains of growth promoting bacillus PM9 and PM16, and two strains of auxiliary bacillus S8 and S32 according to a specific proportion. Compared with an existing single antagonistic bacterial agent, the synthetic flora disclosed by the invention has the advantages that the bacteriostasis rate of the synthetic flora on Fusarium pseudograminearum under a non-sterile soil condition can reach 70% or above, and the disease index is reduced by 70.01%; meanwhile, the plant height of wheat is increased by 28.63%, the root length is increased by 24.53%, the fresh weight is increased by 181.21%, the dry weight is increased by 184.64%, the thousand seed weight is increased by 10.39%, and the rhizosphere microbial community structure and the soil enzyme activity are remarkably improved. The method can be used for green prevention and control and yield increase of basal stem rot of wheat and other gramineous crops.

The invention relates to the technical field of soil remediation, in particular to an iron-modified cow dung biochar material and a preparation method thereof and application in remediation of cadmium-copper contaminated soil. Cow dung is used as a raw material, pretreated cow dung is obtained through natural airing, dewatering and smashing, then the pretreated cow dung and a ferrous chloride solution are mixed, stirred, filtered, dried and ground, and the iron-modified cow dung biochar material is obtained. And pyrolyzing under the protection of inert gas. The iron-modified biochar has a porous layered structure, rich oxygen-containing functional groups and iron-based active sites, has a pH value close to neutrality, and can effectively adapt to the farmland soil environment. The material can remarkably reduce the effective state content of cadmium and copper in soil, promote conversion of heavy metal to a stable residue state, reduce migration of heavy metal in pore water and improve the enzyme activity and nutrient effectiveness of the soil at the same time, the grain cadmium accumulation reduction amplitude reaches 71.65% and the copper accumulation reduction amplitude reaches 29.36% in the rice growth process, and therefore the cadmium and copper combined polluted soil is efficiently repaired, and the quality of the rice is improved. And crop safety and soil health are guaranteed.

The invention discloses a water-saving and emission-reducing grass-growing strip-shaped intercropping and interplanting method for a wheat and corn system in a groundwater limited mining area in North China Plain. The method comprises the following steps: firstly, performing strip-shaped simultaneous sowing on wheat and clover, only performing accurate water and fertilizer regulation and control on a wheat strip in a wheat growth period, and interplanting corn in the clover strip in a no-tillage manner when the wheat enters a dough stage; after the crops are harvested, the straw is smashed, covered and returned to the field, the clover naturally overwinter, and the next planting cycle is carried out; by means of the planting method, annual water consumption and carbon and nitrogen footprint can be effectively reduced, annual grain yield stability is maintained, meanwhile, soil enzyme activity and microbial environment are improved, cooperation of water saving, emission reduction, stable yield and soil improvement is achieved, and technical support is provided for agricultural sustainable development of underground water mining limit areas.

This invention discloses a method for preparing an attapulgite-based acidic soil remediation agent. The method includes: (1) mixing urea solution and biochar and reacting them hydrothermally to obtain urea-modified biochar; (2) mixing attapulgite, calcium silicate, and urea-modified biochar to obtain the attapulgite-based acidic soil remediation agent. Compared with the prior art, applying the remediation agent of this invention to acidic soil in a single application can not only improve various physicochemical indicators such as soil pH, electrical conductivity, water holding capacity, alkaline nitrogen, available phosphorus, available potassium, soil organic matter, and cation exchange capacity, but also enhance soil enzyme activity and promote crop growth and development.

The invention discloses an oxygenation drip irrigation method for saline-alkali soil crops and application of the oxygenation drip irrigation method, and belongs to the technical field of agricultural irrigation. The method comprises the steps of supplying irrigation water with the dissolved oxygen content of 10-15 mg / L to roots through a drip irrigation system in the key period of vegetative growth of crops, and carrying out oxygenation drip irrigation operation for at least two times. The invention further particularly provides a method for adjusting the enzyme activity of the soil in the root zone of the crop based on the saline-alkali soil oxygenation drip irrigation and an oxygenation drip irrigation method for improving the yield of the crops in the saline-alkali soil. The core of the method lies in that the time, frequency and oxygen concentration of oxygenation irrigation are accurately controlled, the problem of oxygen deficit of the saline-alkali soil crop root zone is effectively relieved, and therefore the soil micro-ecological environment is improved, root development and plant growth are promoted, and finally collaborative improvement of the crop yield and quality is achieved.

The application discloses a propiconazole-azoxystrobin- clothianidin seed treatment suspending agent and a preparation method and application thereof, and belongs to the technical field of pesticide preparations; the agent takes propiconazole, azoxystrobin and clothianidin as active ingredients, takes beta-nicotinamide mononucleotide (NMN) as a functional antimicrobial component, and is supplemented with styrene-maleic anhydride copolymer sodium salt, fatty alcohol polyoxyethylene ether, xanthan gum, magnesium aluminum silicate, glycerol, polydimethylsiloxane defoaming agent, sodium benzoate, polyvinyl alcohol and deionized water to prepare the agent. The application is suitable for seed coating treatment for preventing and treating rice false smut, thrips and wheat sharp eyespot and aphids; NMN promotes the accumulation of phenolic compounds in the phloem of plants, and cooperates with clothianidin on the same insecticidal target, thereby significantly improving the prevention and treatment effect on aphids and thrips; the degradation product of NMN promotes the proliferation of beneficial microorganisms in the rhizosphere, improves soil enzyme activity, and realizes soil micro-ecological restoration.

The invention relates to the technical field of microorganisms, in particular to bacillus amyloliquefaciens NECC10723 and application of the bacillus amyloliquefaciens NECC10723, the preservation number of the bacillus amyloliquefaciens NECC10723 is CGMCC No.36726, the bacillus amyloliquefaciens NECC10723 is preserved in the China General Microbiological Culture Collection Center, the preservation date is November 21, 2025, and the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing. The strain NECC10723 can increase the content of nutrient elements in crops and promote the growth of the crops under saline-alkali stress; osmotic regulation substances in crops are increased, and osmotic balance is maintained; accumulation of ROS and hydrogen peroxide of crops is reduced, and the content of antioxidant enzymes is increased, so that the antioxidant capacity of the crops is improved; the soil enzyme activity and the soil nutrient content are improved, and conversion and utilization of nutrient components in the soil are promoted.

The application discloses a kind of time sequence in situ zymogram soil enzyme activity quantitative imaging methods based on multi-parameter screening, it is related to soil enzyme activity detection technical field, the method collects time sequence fluorescence image of enzymatic reaction, constructs pixel-level time sequence gray matrix;Multi-stage screening is carried out to pixel, including initial screening based on gray value and standard deviation, slope and goodness of fit screening of sliding window fitting, and reaction time window final screening;Extract maximum local linear growth rate as uncorrected enzyme activity, introduce diffusion correction model correction, obtain corrected enzyme activity;Quantitative conversion and visual output are realized in combination with fluorescence standard curve.This application changes static measurement into dynamic process analysis, effectively suppresses background noise, significantly improves the sensitivity, spatial resolution and quantitative accuracy of enzyme activity detection.

The application discloses a kind of anti-saline-alkali microbial inoculants and preparation method thereof, belong to the field of microbial technology.The microbial inoculants is made of composite microbial inoculants 100-150 parts, fish bone hydrolysate 10-30 parts, nano silicon sol 1-3 parts.The composite microbial inoculants is made of Trichoderma reesei, Pseudomonas plecoglossicida, Acinetobacter baumannii.The anti-saline-alkali microbial inoculants has remarkable effect on saline-alkali soil improvement, greatly reduces soil acidity, salt content and bulk density, and the yield of saline-alkali soil wheat planting is obviously improved.The soil organic matter content and soil enzyme activity are significantly improved after use, the soil quality and rhizosphere microecological environment are improved, and the enzyme activity in wheat is improved, the stress resistance is improved, the yield reduction caused by saline-alkali stress is reduced, and the use of microbial inoculants can also reduce the amount of chemical fertilizer and pesticide, reduce production cost, and further improve the economic benefit of wheat planting.

This invention provides an acid- and alkali-producing bacterial combination, a compound bacterial agent, and their applications, belonging to the field of microbial technology. This invention provides a bacterial combination including Bacillus subtilis with accession number CGMCC No. 29201. Bacillus sp S1 and Arthrobacterium with accession number CGMCC No. 29202 ( Arthrobacter sp S2. In this invention, both Bacillus S1 and Arthrobacter S2 are acid- and alkali-producing strains with strong environmental adaptability. Through synergistic effects via multiple pathways, including ammonia production, bicarbonate secretion, and activation of soil enzymes, the bacterial combination can significantly increase soil pH, reduce exchangeable aluminum and hydrolyzable acids, and simultaneously increase soil bicarbonate content, thus rapidly and comprehensively improving soil acidity from its root cause. This bacterial combination is of great significance for achieving green, efficient, and sustainable remediation of acidified soils.

The invention discloses a growth-promoting bacterial fertilizer for pandan leaves and application of the growth-promoting bacterial fertilizer, and relates to the technical field of biology. Active components of the growth-promoting bacterial fertilizer for the pandan leaves comprise a microorganism combination, the microbial composition comprises bacillus altitudinis, bacillus megatherium, trichoderma longibrachiatum and aspergillus parasuis. Through the synergistic effect of the four strains, the growth-promoting bacterial fertilizer can effectively improve the soil environment of the saline-alkali soil, reduce the pH value of the soil and improve the enzyme activity of the soil and the nutrient effectiveness of the soil; meanwhile, growth and development of pandan leaves can be remarkably promoted, and plant height, stem diameter, fresh weight of single plant and acre yield are increased; the quality of pandan leaves can be improved, and the content of a characteristic aroma substance 2-acetyl-1-pyrroline is increased. The growth-promoting bacterial fertilizer is simple in preparation process, relatively low in cost, environment-friendly and particularly suitable for popularization and application in planting of pandan leaves in saline-alkali soil, and has important agricultural application value and market prospect.

This invention discloses a highly efficient strain of *Bacillus tekirii* BB that degrades PLA microplastics and its applications. This strain was deposited on February 2, 2026, at the China General Microbiological Culture Collection Center (CGMCC), Institute of Microbiology, Chinese Academy of Sciences, Beijing, with accession number CGMCC NO. 37630. This strain can secrete multiple enzyme systems, including lipase, amylase, laccase, and catalase. In soil systems, this strain can effectively degrade PLA, increase soil lactic acid content and the activity of various soil enzymes, and improve soil organic matter, nitrogen, phosphorus, and potassium nutrient status. This strain can alleviate the growth stress of PLA pollution on plants, increasing the plant height, biomass, and antioxidant enzyme activity of crops such as buckwheat. This strain combines PLA degradation, soil remediation, and plant growth promotion functions, making it suitable for in-situ bioremediation of PLA microplastic pollution in farmland and possessing significant environmental and agricultural application value.

The invention discloses a young tea tree-soybean-corn intercropping method and application thereof in improving tea garden soil and microclimate and increasing the survival rate of tea seedlings, and belongs to the technical field of agricultural planting. According to the method, clonal national improved variety Grain Rain Spring young tea trees are used as main crops and matched with Zhenong No.6 soybeans and Liuyu No.3 corns for intercropping, and the comprehensive effects of tea garden microclimate regulation, soil nutrient improvement, soil enzyme activity enhancement and soil microbial community optimization are achieved by optimizing crop planting parameters and field management measures. According to the technology, the survival rate of the tea seedlings can be remarkably increased, and the survival rate of the tea seedlings of the intercropping group is 1.22 times that of the tea seedlings of the non-intercropping control group. An efficient and feasible planting mode is provided for ecological tea garden construction and rapid young tea garden formation, and the sustainable development capacity and economic benefits of the tea industry can be improved.

The application belongs to the technical field of biotechnology, and particularly discloses a method for enhancing drought resistance of eggplants by using bacillus complex microbial inoculant and arbuscular mycorrhizal fungi, and the method forms a synergistic microbial combination by applying the bacillus complex microbial liquid and the arbuscular mycorrhizal fungi inoculant to the eggplant seedling rhizosphere. Experiments show that the combination can significantly improve the root system configuration of eggplants under drought stress, increase the root length, fresh weight and dry weight, improve the leaf relative water content and photosynthetic efficiency, reduce the malondialdehyde content of membrane lipid peroxidation products, improve the peroxidase and catalase activities, synergistically promote the absorption of nitrogen elements by the plants, and improve the rhizosphere soil enzyme activity. The method is simple in operation and stable in effect, and provides a new way for developing efficient and environmentally-friendly microbial fertilizer and improving the drought resistance of solanaceous crops.

The invention relates to a preparation method of a metal ion activated soil indigenous enzyme bacterium composition, and belongs to the field of agricultural microbial technologies and novel fertilizers, the composition is prepared from a powder water-soluble fertilizer with the zinc content of 10.0-20.0% and a special activator accounting for 0.5-1.0% of the total mass of the composition through a low-temperature chelation compounding process. Through the triple mechanisms of zinc nutrition starting, activating agent biological regulation and control and slow release synergy, soil aboriginal beneficial microbial communities can be efficiently and directionally activated and optimized, soil enzyme activity and microbial biomass are remarkably improved, continuous cropping obstacle soil is improved, crop stress resistance is effectively enhanced, growth is promoted, and finally yield increase and quality improvement of crops are achieved.

The application discloses a soil conditioner for improving quality and yield of continuous cropping tomatoes, and raw materials of the soil conditioner include earthworm manure powder, sinomenium acutum powder, fallopia multiflora, limestone powder, humic acid, active adsorbent, composite microorganism, carboxymethyl hydroxyethyl cellulose, acrylamide, crosslinking agent, photoinitiator, catalyst and iron salt. The application also discloses a preparation method of the soil conditioner for improving quality and yield of continuous cropping tomatoes. The application adopts the compounding of the loaded microorganism and the earthworm manure powder, can quickly increase soil water stable aggregates, improve soil physical structure, enhance soil fertility, and has extremely remarkable effect of improving soil, and in combination with the sinomenium acutum and the fallopia multiflora, can not only show the inhibiting effect on fusarium oxysporum in the soil continuously cropped for 5-10 years, but also can continuously enhance soil enzyme activity.

The application discloses a controlled-release fertilizer containing signal substances for promoting nitrogen transport of wheat root systems and a preparation method thereof. The controlled-release fertilizer comprises an inner layer composite core and an outer layer enzyme response-ion crosslinking double-control membrane; the inner layer composite core material comprises urea, potassium dihydrogen phosphate, potassium sulfate, sophorolipid, trehalose-6-phosphate and bentonite; and the outer layer enzyme response-ion crosslinking double-control membrane comprises xanthan gum, gellan gum, soil enzyme response oligopeptide and calcium citrate. The application realizes the combination of functional components through the 'nutrient-signal composite core material', and realizes the matching of release behavior and crop physiological demand through the 'enzyme response-ion crosslinking controlled-release membrane'. The design solves the limitation that traditional controlled-release fertilizers can only delay nutrient release but cannot actively regulate crop physiological links, strengthens the absorption and internal transport capacity of wheat for nitrogen from the root source by protecting and accurately delivering signal substances, and significantly improves the nitrogen utilization rate to 50%-55%.

The invention belongs to the technical field of microorganisms, and discloses application of a straw rot-promoting fungus strain in straw returning to the field. The invention also discloses a method. The application of the straw decay-promoting fungi to straw returning comprises the following specific steps: (1) cutting straws to be treated into small sections, and drying; (2) weighing the dried straw, and uniformly spraying the bacterial liquid; and (3) mixing the straw sprayed with the bacterial liquid with soil, burying the mixture into a soil layer, and completing field returning operation. The straw decay-promoting fungus has the characteristics of saline-alkali resistance, drought resistance and low temperature resistance, and after the straw decay-promoting fungus is applied to straw returning, the structural characteristics of soil are comprehensively optimized, the formation of large aggregates is promoted, and the pore condition is improved; the soil alkalinity is synchronously reduced, the organic matter accumulation and nutrient effectiveness are improved, the soil enzyme activity is improved, the crop yield is finally increased, and the problems that the straw decomposition efficiency is low, the strain practicability is poor, and soil functional flora imbalance is easily caused in the low-temperature drought environment in the straw returning process at present are solved.

The invention discloses a soil conditioner based on carbide slag and a preparation method thereof, and belongs to the technical field of soil conditioners. The soil conditioner comprises the following raw materials in parts by mass: 50-65 parts of modified carbide slag, 15-21 parts of diatomite, 5-7 parts of humic acid, 10-15 parts of ground phosphate rock, 3-5 parts of potassium feldspar powder and 2-5 parts of a microbial agent. According to the method, the heavy metal leaching risk of the carbide slag is solved, the alkalinity of the carbide slag is regulated and controlled, the calcium ion release half-life period is prolonged to 18-28 hours, and the mild and lasting regulation of the pH value of the soil is realized; furthermore, through humic acid buffering and synergistic compatibility of phosphorus and potassium minerals and the functional microbial agent, the inherent nutrient immobilization effect of the carbide slag is successfully reversed into long-acting activated supply, the content of available phosphorus and potassium in soil after application is remarkably and neatly increased, heavy metal is synchronously passivated, the enzyme activity of the soil is improved, and the soil quality is improved. And finally, synergistic interaction of safety improvement, soil fertility improvement and ecological restoration of the acid soil is realized.

The invention discloses a composition for relieving wheat salt stress and application. The invention relates to an application of at least one of inosine, methylmalonic acid and adenosine in improvement of wheat salt stress resistance. The composition comprises salicylic acid, inosine, indoleacetic acid, methylmalonic acid and adenosine. The molar ratio of salicylic acid to inosine to indoleacetic acid to methylmalonic acid to adenosine is 1: 1: 10: 10: 1. Salicylic acid, inosine, indoleacetic acid, methylmalonic acid and adenosine are taken as a single substance or a composition of the salicylic acid, inosine, indoleacetic acid, methylmalonic acid and adenosine as an exogenous preparation for relieving salt stress of wheat, so that the salt stress resistance of the wheat can be improved, the fresh weight, dry weight and root indexes of the wheat can be improved, and the antioxidant enzyme activity under the salt stress of the wheat can be improved; the soil available phosphorus content and the soil enzyme activity are improved, and the wheat rhizosphere microbial structure is regulated and controlled.

The invention provides streptomyces albidoflavus and application thereof, and relates to the technical field of microorganisms. The streptomyces alboflavus disclosed by the invention is named as Streptomyces alboflavus LY7, and the preservation number of the streptomyces alboflavus LY7 is CGMCC (China General Microbiological Culture Collection Center) No.37530. The strain has an inhibition effect on various phytopathogens, and has great potential in agricultural applications such as plant disease control. Related application and products of the biocontrol bacterium streptomyces albidoflavus, such as multifunctional bacterial manure taking needle mushroom bran as a matrix, are expanded, and the streptomyces albidoflavus has obvious bacteriostatic activity on main soil-borne disease pathogenic bacteria of ginseng, and can effectively prevent and treat root diseases of ginseng; the ginseng growth can be obviously promoted; the ginseng yield is increased. In addition, the microbial fertilizer can also effectively regulate the physicochemical properties of soil in the ginseng field, improve the enzyme activity of the soil and promote the healthy development of the ginseng industry.

This invention provides a nutrient matrix using highly alkaline, low-organic-matter construction waste and its preparation method, belonging to the field of nutrient matrix technology. The nutrient matrix comprises the following raw materials by weight percentage: 55%–60% construction waste, 25%–35% peat, 0.5%–1.0% microbial inoculant, and 3%–5% vermiculite; the nutrient matrix also includes earthworms. The preparation method is as follows: the construction waste is crushed and sieved to remove large gravel and construction debris, obtaining the matrix base material. This material is then mixed evenly with peat, vermiculite, and microbial inoculant, and inoculated with earthworms to obtain the nutrient matrix. This invention, through the scientific compounding of construction waste, low-proportion peat, microbial inoculant, and vermiculite, combined with earthworm bio-enrichment technology, utilizes the ingestion, digestion, and excretion of earthworms and the fermentation of the inoculant to rapidly reduce the pH value of the construction waste, significantly increase the organic matter content and soil enzyme activity, and form an excellent granular structure. This nutrient matrix has broad applicability and environmental safety.

The application belongs to the technical field of microbial application, and specifically provides a cold-tolerant Paenibacillus polymyxa (Y5R4-9). Peribacillus frigoritolerans Under the condition of saline-alkali stress, inoculation of the strain Y5R4-9 can promote the growth of forage oats in saline-alkali soil by improving the leaf antioxidant enzyme activity and proline content, reducing the MDA content, improving the soil enzyme activity and soil organic matter, increasing the plant height of forage oats, and improving the root morphology, so as to efficiently relieve the stress of saline-alkali on the growth of forage oats.

The invention relates to a biological agent for preventing and treating polygonatum kingianum root rot, and belongs to the technical field of microorganisms and organic fertilizers. The biological agent is prepared from bacillus amyloliquefaciens of which the preservation number is CCTCC (China Center For Type Culture Collection) NO: M20221206, bacillus methylotrophicus of which the preservation number is CCTCC NO: M20221661, an artemisia annua extract, seaweed essence powder, humic acid and nutrient elements. Through the synergistic effect of all the components, mycelial growth and spore germination of fusarium oxysporum and fusarium solani are effectively inhibited and cracked, pathogenic bacterium cell membranes are destroyed, and the content of soil toxins is reduced. Meanwhile, the microbial agent can improve the physicochemical properties of soil, improve the enzyme activity and microbial diversity of the soil, reduce the accumulation of phenolic acids and relieve successive cropping obstacles. By applying the fungicide, the disease index of the polygonatum kingianum root rot can be remarkably reduced, plant growth is promoted, the yield is increased, the fungicide is suitable for polygonatum kingianum rhizosphere soil treatment, the application amount is 150-250 g / plant each time, and the fungicide is applied three times in the whole growth period.

The invention provides a novel soil remediation agent. The novel soil remediation agent is prepared from extracellular polymeric substances of special strains and ferrihydrite loaded with sodium carboxymethyl cellulose. The soil remediation agent not only can improve the adsorption and fixation efficiency of arsenic, but also has the advantages of remediation of arsenic-polluted soil, improvement of soil enzyme activity and reduction of bioavailability of arsenic in the soil, is environment-friendly, keeps soil fertility and the like, and is an efficient and stable soil biological-chemical in-situ remediation method for the arsenic-polluted soil.

The invention provides a shrub and grass combined planting method suitable for soil of a strip mine dump and application of the shrub and grass combined planting method, and relates to the technical field of ecological remediation, the shrub and grass combined planting method comprises the steps of planting amorpha fruticosa in a to-be-improved soil area, and sowing alfalfa in gaps of the amorpha fruticosa; the arbuscular mycorrhizal fungi inoculant and the dark-color separated endophytic fungi inoculant are applied to the root of each amorpha fruticosa plant in a hole application mode, and the arbuscular mycorrhizal fungi inoculant and the dark-color separated endophytic fungi inoculant are applied in planting gaps of the amorpha fruticosa plant by digging shallow ditches. The long-term stable symbiosis of the two fungi at the rhizosphere is realized. The photosynthetic rate and the CO2 quantum efficiency of the amorpha fruticosa and the alfalfa are remarkably improved, and the obvious synergistic interaction effect is achieved in the aspects of improving the soil nutrient components and the activity of soil enzymes such as sucrase and phosphatase. The technical problems that in the prior art, the AMF and the DSE have ecological niche competition, the coexistence stability is poor and inoculation balance is difficult to control in the process of improving the soil of the strip mine dumping site, and consequently soil remediation is difficult are solved.

The invention belongs to the technical field of soil improvement, and particularly relates to a biological conditioner for improving coastal salinized soil and promoting crop growth and a preparation method thereof.The biological conditioner is prepared from, by weight, 40-50 parts of acid activated porous biochar, 10-20 parts of compound microorganism bacterium liquid, 20-25 parts of water retention type slow release nitrogen fertilizer and 5-10 parts of potassium sulfate; the compound microorganism bacterial liquid is obtained by mixing a P.megatherium RS2-15 bacterial liquid, a Bacillus flexus RC2-7 bacterial liquid, a P.putida M1-38 bacterial liquid and an Acinetobacter picei R2-3 bacterial liquid which are equal in volume. The compound microorganism bacterium liquid can improve soil nutrients and soil enzyme activity and promote crop growth; the acid-activated porous biochar can regulate the granular structure of the soil, adsorb salt ions in the soil and improve the saline-alkaline state of the soil; the water-retaining slow-release nitrogen fertilizer can retain water for soil and also can slowly release the nitrogen fertilizer.

The application provides a preparation method and application of a novel composite material based on a high-speed shearing method. The composite material is prepared by compounding mercapto cellulose and mercapto bentonite, the mercapto cellulose is rapidly intercalated into the sheet structure of the mercapto bentonite by the high-speed shearing method, and the mass ratio of the cellulose, the bentonite and the mercapto in the composite material is 1:1:2. The application also provides application of the mercapto cellulose / bentonite nanocomposite material in cadmium pollution treatment. The preparation method of the mercapto cellulose / bentonite nanocomposite material has the advantages of short preparation time, fast surface modification speed, enlarged interlamellar spacing of the bentonite, high adsorption, rich selective sites for complexation of metal cadmium, high remediation efficiency, small influence on soil physical and chemical properties, and the ability to improve soil enzyme activity. The material is used for cadmium pollution treatment, and has the advantages of simple use method and small influence on the environment.

The invention discloses a method for improving carbon accumulation of a plant silicon body based on addition of carbon and silicon. The method is suitable for carbon sink management of moso bamboo forest lands and other plants with high plant silicon bodies. The method comprises the steps of forest land preparation, carbon-silicon compound fertilizer preparation, staged fertilization, silicon microorganism synergistic enhancement promotion, sample collection, effect evaluation and the like. The biomass carbon fertilizer and the water-soluble silicon fertilizer are synergistically applied, and the microbial inoculum is combined to activate the enzyme activity of the soil, so that the silicon release is enhanced, and the carbon sequestration efficiency is improved. Experiments prove that the method can remarkably increase the carbon content of the plant silicon body, improve the silicon-aluminum state of soil and enhance the micro-ecological function, and has good adaptability and popularization value.