748 results about "Soil structure" patented technology

The invention provides a farmland yield prediction method and system based on soil parameter inversion, and the method specifically comprises the steps: collecting the soil profile information and earth surface three-dimensional information of a target farmland through a ground penetrating radar and a laser radar, and carrying out the precise inversion of the water content and porosity of soil based on a water-porosity inversion model, therefore, a high-precision three-dimensional soil distribution model is constructed, crop growth monitoring data is combined, a farmland yield prediction model is established, the relationship among soil structure characteristics, crop growth indexes and meteorological factors is quantified, and high-precision farmland yield prediction is realized. According to the method, through accurate modeling of the double-pore structure and optimization of the multiple linear regression prediction model, yield prediction is more accurate and reliable, and the method is particularly suitable for farmland management under different soil types and meteorological conditions.

The invention relates to a geotechnical engineering geological investigation system and an investigation method thereof, which are used for solving the problems of drilling redundancy, repeated model correction and long period caused by traditional uniform hole distribution. The system comprises a geophysical exploration module, a rock-soil body structure feature extraction module, a geological abnormal area identification module, a survey detection point dynamic optimization module, a drilling sampling analysis module and a geotechnical engineering stability evaluation module. Earth material exploration is carried out on representative points to obtain a comprehensive geophysical prospecting data set, inversion is carried out according to the comprehensive geophysical prospecting data set to obtain a three-dimensional rock-soil structure, an abnormal area is recognized, accordingly, the drilling layout is dynamically optimized, and stability evaluation is completed at a time after a small amount of directional drilling sampling is carried out. By adopting the system, a high-precision geologic model and a stable evaluation result can be obtained with fewer drilled holes in a preliminary exploration stage, the cost is remarkably reduced, and the period is shortened.

The invention relates to the technical field of soil function improvement, in particular to a rice field soil recarburization and capacity expansion method based on a charcoal-based organic fertilizer. The method comprises the following steps: crushing a biomass raw material, pyrolyzing and cooling to obtain biochar; immersing the biochar in a functional bacteria solution containing actinomycetes and bacillus for activating treatment to obtain modified biochar; mixing the modified biochar and decomposed straw, composting and fermenting to obtain organic fertilizers with different particle sizes; the large-particle-size organic fertilizer is applied to deep soil, the soil is covered with soil after straw is laid on the soil, and the small-particle-size organic fertilizer is applied to surface soil. Through layered application, the large-particle-size biochar repairs the deep soil structure and expands the carbon storage capacity, and meanwhile, the carbon stability is improved through carbon-nitrogen synergistic metabolism driven by functional bacteria, so that the carbon immobilization efficiency is improved, meanwhile, soil recarburization and expansion are achieved, the contradiction between carbon sequestration and structure degradation and nutrient imbalance in a traditional recarburization and expansion technology is solved, and the soil recarburization and expansion efficiency is improved. Synergic improvement of a carbon sink function and agricultural productivity is promoted.

The invention discloses a compound microorganism and application thereof to improvement of saline-alkali soil, and relates to the technical field of agriculture, the compound microorganism is obtained by compounding halophilic bacillus, rhodotorula mucilaginosa, alkali-resistant rhizobium, desulfurization vibrio and siliconizing bacteria, and the excellent saline-alkali soil improvement effect can be achieved. The functional strains cooperate with one another, have complementary advantages, and play a role in multiple aspects such as soil structure improvement, nutrient supply and absorption, salt and alkali relief, microbial community optimization and the like. The compound microbial preparation has an efficient synergistic mechanism, provides an innovative solution for solving the problem of saline-alkali soil, and shows huge potential in the aspects of promoting agricultural green development and ecological protection.

The invention discloses a soil structure intelligent improvement method and system, and particularly relates to the technical field of soil structure improvement. The method comprises the following steps: constructing a basic data set by collecting original soil sample data of a target cultivated land area, and reconstructing a soil structure state map by adopting a multi-dimensional feature mapping model after standardization and normalization processing; key structure deterioration indexes influencing the farming performance are extracted through structure pattern recognition; establishing a structure improvement adaptation model based on the key structure deterioration indexes and the crop root zone environment demand parameters, and determining an adaptation weight relation matrix; matching the soil structure improvement measures according to the adaptive weight relation matrix to form a soil improvement strategy; and applying the soil improvement strategy to the target cultivated land area, and updating the structure improvement adaptive model to realize continuous improvement of the soil structure of the target cultivated land area. And the soil structure state can be accurately evaluated, and differentiated and intelligent soil improvement strategy making and implementation can be realized.

The invention belongs to the technical field of agricultural biology, and particularly relates to a compound bacterial fertilizer with a soil structure repairing function and a preparation method thereof. The three-layer embedding structure is more beneficial to improving the survival rate of strains, the limitation of traditional single-layer embedding is broken through through the three-stage structure design of inner core slow release, middle layer regulation and control and shell adsorption, integration of salt adsorption, structure improvement and flora colonization is achieved through cooperation of multiple materials including PGA, biochar and montmorillonite, and saline-alkali soil can be well repaired and improved. Besides, compared with conventional Aspergillus niger, the Aspergillus niger GRJC004 provided by the invention is suitable for survival in a saline-alkali environment, and is especially suitable for restoration and improvement of saline-alkali soil in combination with the three-stage structural design of the Aspergillus niger GRJC004.

The invention provides a soil remediation modifier, a soil remediation method and a soil maintenance method, and belongs to the technical field of soil remediation. The soil conditioner is prepared from the following raw materials in parts by weight: 40-50 parts of modified sludge, 10-15 parts of humic acid, 5-10 parts of a bioactive component, 10-15 parts of an inorganic component and 10-15 parts of an organic component. The soil remediation agent prepared by the invention not only can increase the total porosity of soil, improve soil water stability granules and soil structure, but also can improve soil fertility, improve soil pH value and passivate heavy metal ions, so that the prepared remediated soil can adapt to plant growth requirements, and meanwhile, the sludge and the traditional Chinese medicine residues are subjected to resource utilization, waste is turned into wealth, and the cost is reduced. Wide application prospects are realized.

The invention discloses a Xinanjiang model correction method based on CLDAS soil humidity assimilation. Soil moisture constants such as field capacity FC and wilting point WP are calculated; corresponding and mapping of a CLDAS observation layer and a model three-layer soil structure (WU, WL and WD) are realized through layered interpolation. For the problem of missing measurement of the CLDAS, a reconstruction model based on space-time Transform is introduced for filling, pixel-level uncertainty is output, and an EnKF observation covariance matrix is constructed based on the pixel-level uncertainty. And then dynamically updating the three-layer soil water content state of the model by using ensemble Kalman filtering, thereby reducing the influence of soil humidity initial estimation and simulation deviation on flood simulation. The flood simulation and real-time forecasting precision can be effectively improved, the method has the advantages of being stable in data source, clear in physical significance and high in applicability, and a new technical approach is provided for state initialization and digital hydrology research of a distributed hydrological model.

The invention provides an organic-inorganic composite conditioner for improving a soil structure. Comprising the following raw materials in parts by mass: 100-150 parts of calcium, 20-50 parts of magnesium, 10-20 parts of polyglutamic acid, 0.5-2 parts of zinc, 2-4 parts of boron, 2-4 parts of iron, 100-150 parts of organic nitrogen, 150-200 parts of composite organic natural polypeptide amino acid, 50-70 parts of seaweed boron molybdenum, 50-80 parts of phosphorus calcium zinc liquid, 20-50 parts of seaweed calcium magnesium boron iron zinc and 100-120 parts of a plant nutrition preparation. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of high phosphorus and high potassium, 150-200 parts of organic waste compost, 50-80 parts of a synergist and 50-100 parts of a functional microbial agent. Through a unique chelation technology, polyglutamic acid and calcium and magnesium ions are fully fused to form an efficient medium trace element water-soluble fertilizer, calcium and magnesium are directly absorbed by a root system after flushing application, the calcium utilization rate is improved by 50% or above, and due to the fact that polyglutamic acid carries strong negative charges, fertilizer loss caused by rainwater leaching is effectively reduced, and the yield of the fertilizer is improved. And the water-retaining and fertilizer-retaining functions are more obvious when the fertilizer is used in sandy loam.

The invention relates to the technical field of soil cadmium remediation, in particular to a soil Cd recognition and remediation method based on mulberry root exudates and microorganisms. According to the method, spatial microscopic image frames of rhizosphere microflora are divided through a community structure, community node increment updating calculation of adjacent time sequences is executed, the transition recombination frequency of the rhizosphere microflora is obtained, and the transition color of the actual concentration content of root exudates is rendered based on a metal pollution level system and the transition recombination frequency. Generating a stress level heat model of the soil cadmium gradient in the target restoration area; and according to the stress level popularity model, carrying out popularity color analysis and identification on the soil cadmium pollution of the target restoration area, and generating a global stress identification result of the soil cadmium. According to the method, rapid identification of cadmium pollution enrichment can be realized by utilizing the synergistic response between mulberry root exudates and rhizosphere microorganisms, and a repair regulation and control plan is made, so that the cadmium pollution degree is reduced, the soil structure and fertility are optimized, and a safer and healthier environment is provided for plant growth.

The invention discloses a humic acid type biological organic fertilizer and a preparation method thereof, and belongs to the technical field of agricultural biologication.The fertilizer is prepared from weathered coal humic acid raw powder, seaweed processing residues and insect manure as main raw materials. The soil conditioner is prepared by adding a compound microbial agent, a mineral synergist, an enzyme preparation, a coating material, a soil structure regulator, a signal molecule inducer, a trace rare earth element additive, a stabilizer and the like in a specific ratio and adopting a two-step fermentation process. The fertilizer disclosed by the invention has remarkable functions of soil improvement, nutrient slow release, microbial community regulation and control, crop stress resistance enhancement and the like, remarkably improves the yield and quality of crops, reduces the use of chemical fertilizers, promotes agricultural sustainable development, and has remarkable economic and ecological benefits.

The invention relates to the technical field of environmental protection, in particular to a cooperative soil fixation system and method based on a grass planting slope protection root system and a grating, and the system comprises a root system distribution optimization module, a grating structure adaptation module, a soil fixation capability improvement module, a slope stability evaluation module and a dynamic adjustment module. According to the method, priority distribution is constructed by extracting a root system supporting strength key section and combining root system depth and density changes, accurate recognition and differential layout of soil structure characteristics are achieved, a stress adaptation relation is established by matching grating parameters of all areas, the soil bearing and supporting coordination degree is improved, and the accuracy of the soil structure characteristics is improved. A soil fixation capability concentration area is extracted based on consolidation change and root trend, accurate evaluation of consolidation strength per unit area is realized, slope stability effectiveness is monitored by identifying a water flow scouring and stability change coincidence period, disturbance tasks are classified, grid switching frequency is dynamically adjusted, response efficiency and anti-interference capability under sudden change load are enhanced, and slope stability evaluation is realized. The problem that a traditional soil fixing structure is insufficient in adaptability is solved.

The invention belongs to the technical field of soil humidity prediction methods, and particularly relates to a soil deep humidity prediction system and method based on near infrared spectrum and federated learning. The system comprises a near infrared spectrum acquisition device, an auxiliary information acquisition module, an edge end data preprocessing module, a federated learning client module, a cloud federated aggregation server and a man-machine interaction and equipment control module. The method comprises the following steps: establishing a surface humidity estimation model by collecting soil surface near-infrared reflectivity and environment auxiliary information; a deep humidity prediction model is constructed in combination with a heat conduction equation and machine learning, and the accuracy is improved by adopting weighted fusion. A federal learning framework is introduced, local training and cloud aggregation of each agricultural machine are realized, data privacy is protected, and the model generalization ability is improved. The system does not need to destroy the soil structure, has the advantages of non-contact, high efficiency, safety and expandability, and is suitable for intelligent prediction of large-range deep humidity in farmland and linkage control of agricultural operation.

The invention belongs to the technical field of soil improvement, and relates to a soil conditioner for improving sandy soil structure and a preparation method thereof, and the preparation method specifically comprises the following steps: preparing activated humic acid, preparing a nano mineral material, preparing modified biochar, constructing biochar composite gel, and preparing konjac glucomannan-sodium alginate water-retaining colloid. Mixing the biochar composite gel, the water-retaining colloid and the slow-release fertilizer, granulating and the like. Through a ternary synergistic system of the biochar composite gel, the water-retaining colloid and the slow-release fertilizer, the functional singleness is broken through, the structure-water retention-fertilizer supply integration is realized, and the problems that an existing sandy soil conditioner is single in function, poor in component synergism, weak in environmental adaptability, insufficient in long-term effect and the like are solved.

The invention relates to a method for relieving soil salinization through combination of agriculture and forestry solid waste and hydrotalcite and application, and belongs to the technical field of soil improvement. The method comprises the following steps: stripping surface saline-alkali soil, crushing agriculture and forestry solid wastes, spreading the crushed agriculture and forestry solid wastes on the land to form a biomass layer, mixing hydrotalcite powder roasted at a high temperature with the stripped soil, covering the biomass layer with the mixture, and finally flattening and sprinkling water to moisten the soil. According to the invention, rising of soil capillary water is blocked through the biomass layer, salt accumulation is reduced, and meanwhile, the soil salinization degree is reduced by utilizing adsorption and ion exchange effects of hydrotalcite. In addition, the agriculture and forestry solid wastes are decayed to generate organic acid, salt is fixed through chelation, and the soil structure is improved. According to the method, soil salinization can be effectively relieved, the air permeability and the water permeability of the soil can be improved, a good environment is provided for crop growth, the crop yield is remarkably increased, the improvement period is short, the application range is wide, and economic benefits are remarkable.

The invention relates to the technical field of water demand prediction, in particular to a crop water demand prediction method and system based on the agricultural Internet of Things, and is applied to accurate moisture management in complex soil structures such as terraces. And in combination with the dynamic weight of interlayer moisture migration, the moisture absorption matrix is updated in real time. Through time sequence sliding and cosine similarity calculation, a moisture retention time matrix is dynamically corrected, and accurate distribution of soil moisture is ensured. A graph theory algorithm is introduced to construct a directed graph model of a water flow path, an interference matrix is generated in combination with binary masks, matching of water absorption and water retention time is optimized, and the irrigation efficiency and the water resource utilization rate are improved. The irrigation strategy can be dynamically adjusted according to the moisture state between the soil layers, moisture waste is avoided, and the accuracy of crop growth moisture supply is improved.

The invention relates to the technical field of soil improvement, in particular to a saline-alkali soil improver prepared by compounding ferrous sulfate and fly ash as well as a preparation method and application of the saline-alkali soil improver. By scientifically compounding the ferrous sulfate, the active fly ash, the beer fermentation residues, the attapulgite and the microbial agent, the proportion of all the components is optimized, the synergistic effect of all the components is fully exerted, the improvement effect of the saline-alkali soil is remarkably improved, and multi-dimensional improvement of the saline-alkali soil is achieved. The saline-alkali soil improver can effectively reduce the pH value and salt content of soil, improve the soil structure, improve the soil fertility and biological activity and promote plant growth. Compared with the prior art, the saline-alkali soil improver has the advantages of being good in improvement effect, lasting in effect, low in cost, environmentally friendly and the like, is suitable for large-area saline-alkali soil improvement and agricultural production, and has good application and popularization prospects.

The invention relates to the field of soil improvement, in particular to a saline-alkali soil improvement method which comprises the specific steps of deep ploughing and crushing, drainage system building and pesticide spreading, high-molecular polymer application and microbial agent inoculation. Good soil conditions are created through a physical improvement method, the soil salinity and alkalinity are rapidly reduced through a chemical improvement method, the salt-tolerant microbial agent can decompose organic matter, improve soil micro-ecology, reduce salinity toxicity and promote plant growth, and the saline-alkali soil improvement efficiency and effect are remarkably improved through mutual cooperation of the three methods; the method reduces the excessive use of chemical substances in a single chemical improvement method, realizes the ecological restoration of the saline-alkali soil through a physical method, a chemical method and a microbiological method, reduces the negative influence on the environment, improves the sustainability of improvement, effectively improves the soil structure and the ecological environment, provides good conditions for plant growth, and realizes the efficient utilization of the saline-alkali soil.

The invention provides a temperature-increasing oxygen-increasing agent for waterlogging type medium and low yield fields and a preparation method of the temperature-increasing oxygen-increasing agent. The temperature-increasing oxygen-increasing agent is prepared from the following raw materials in parts by weight: 80 to 130 parts of tea seed cakes, 80 to 110 parts of aged chicken manure, 140 to 180 parts of straw powder, 7.7 to 10 parts of beneficial bacteria, 0.3 to 0.8 part of alginate oligosaccharide, 9.5 to 12 parts of silicon-calcium-magnesium ore powder, 200 to 220 parts of activated humic acid and 340 to 430 parts of calcium peroxide. The fertilizer has comprehensive nutrients, can effectively improve the utilization rate of the fertilizer, improve the soil structure and promote production and income increase, takes organic matters as a carrier, is added with a large amount of activated humic acid and silico-calcium-magnesium ore powder, has strong chelating ability, promotes the formation of soil aggregates and improves the absorption and utilization rate of plant nutrients, and has good application prospects through a unique coating technology. The active ingredients and the granulation rate of the product are effectively improved.

The invention discloses a method for synergistically preparing a carbon-based soil conditioner from coal gangue and straw, and relates to a method for preparing the carbon-based soil conditioner. The invention aims to solve the technical problem that a large amount of coal gangue and agricultural straws are accumulated as wastes in the prior art to cause harm to the environment. The preparation method comprises the following steps: firstly, carrying out ultramicro activation pretreatment on coal gangue through mechanical grinding; then, adopting a double-atmosphere segmented pyrolysis process: generating a plant ash silicon fertilizer rich in KCl and K2CO3 in an air atmosphere; preparing a biochar material with a hierarchical porous structure under the protection of nitrogen; accurate compounding of the activated silicon fertilizer and the porous biochar is achieved through solid-phase mixing, finally, the activated silicon fertilizer and the porous biochar cooperate with the vinegar residue organic material to form the organic-inorganic composite carbon-based soil conditioner, the soil conditioner has the weakly acidic pH regulation and control function, the mineral nutrition slow release characteristic and the multi-scale pore structure characteristic, formation of saline-alkali soil aggregates is effectively promoted, the soil structure is improved, and the soil quality is improved. The volume weight of soil is reduced, and the effectiveness of phosphorus and the bioavailability of silicon are remarkably improved.

The invention discloses a black land plough layer soil construction method based on a bio-organic fertilizer, and aims to solve the problems of black land soil degradation and fertility decline. The functional bio-organic fertilizer containing nitrogen-fixing bacteria, phosphate solubilizing bacteria and potassium solubilizing bacteria is prepared, and scientific and accurate fertilization is realized by combining soil physicochemical property determination and mathematical model optimization. The method specifically comprises the following steps: measuring the nutrient content and pH value of soil and fertilizer, constructing a mathematical model to obtain optimized application parameters, and continuously improving the soil fertility and productivity by dynamically adjusting the fertilizer application amount and evaluating the soil fertility, thereby reducing the dependence on chemical fertilizer, improving the soil structure and improving the crop yield. The method has the characteristics of environmental friendliness, accuracy, high efficiency and high sustainability.

The invention discloses a rock-soil deformation measurement method and remote monitoring system based on computer vision, and the deformation measurement method comprises the steps: construction of a target data set, model training, image calibration and monitoring point selection, target matching and search parameter determination, integer pixel search, sub-pixel search, real coordinate conversion, and displacement calculation. The advantages of deep learning rapid positioning and DIC accurate searching are fused, the problems that a traditional DIC method loses efficacy in a severe environment and instantaneous large deformation represented by surface collapse is difficult to track are solved, and monitoring continuity under the temporary shielding condition is kept; the remote monitoring system is composed of an image acquisition module, an image transmission module and a deformation calculation and visual display module, online monitoring and management of rock-soil structure deformation are realized through deformation calculation software and a visual management platform, the cost and deployment difficulty of deformation monitoring are reduced, the accuracy and efficiency of deformation calculation are improved, and the system is suitable for popularization and application. The universality is high, and engineering popularization is easy.

The invention relates to the field of soil remediation, in particular to an efficient remediation agent for acid soil and a preparation method of the efficient remediation agent. The repairing agent is composed of hydroxyapatite modified biochar, an MOF biochar compound and lime. Compared with the prior art, the hydroxyapatite modified biochar and MOF biochar compound not only can regulate the soil acidity, but also can provide rich nutrient elements and improve the soil structure, and the lime can quickly neutralize hydrogen ions in acid soil and quickly increase the pH value of the soil, so that the remediation agent can improve the soil acidity within a short time, and the remediation effect is good. And meanwhile, short-term and long-term repairing effects are considered. The preparation raw materials of the biochar comprise agricultural wastes such as cow dung, the source is wide, the cost is relatively low, and the resource utilization of the wastes is realized. Lime is also a common soil conditioner, and is relatively low in price and easy to obtain, so that the production cost of the whole repairing agent is reduced, and the economic feasibility and the application range of the repairing agent are improved.

The invention relates to the technical field of ecological restoration, in particular to a vegetation water and soil ecological restoration optimization method and system based on multi-source data fusion, and the method comprises the following steps: obtaining monthly-scale evapotranspiration data, extracting extreme values to construct an interval sequence, screening adaptive vegetation to generate a list, and calculating soil nutrient release and vegetation absorption amount. Determining the maximum planting density and the target planting density, judging the critical point of root layer moisture, and setting a maintenance water replenishing period. According to the method, by matching the evapotranspiration water supply capacity section with the water consumption characteristics of the plants, high coupling of vegetation allocation and regional hydrological conditions is ensured, and the resource bearing reasonability of vegetation allocation is enhanced in combination with a density allocation mechanism of the sustainable nutrient release capacity of the soil in unit area and the plant absorption capacity; the recovery speed and the resource utilization efficiency are effectively balanced, the root layer moisture critical point is calculated according to the soil structure parameters and the rainfall erosion data after information fusion, and the maintenance water supplementing rhythm is optimized to reduce the resource waste and the vegetation stress occurrence probability.

The invention discloses a method for restoring a slope ecological structure based on forest burning background, and belongs to the technical field of water and soil conservation and ecological restoration. Burnt vegetation and slope surfaces are cleaned, the burnt slope surfaces are recombined, a three-layer vegetation structure, namely an arbor structure, a shrub structure and a herbaceous structure is determined to be formed, six soil structures are constructed, and the slope ecological structure is restored. A water supply and drainage network is formed on the slope surface penetrating through the gravel layer, the global water supply and drainage function is achieved, and different vegetation species are selected for planting according to the actual situation of the area and in combination with the three-layer vegetation structure; the fire-proof plant wall has the advantages of simple materials, use of local materials, good utilization of burnt fire waste materials, economy, feasibility, good bearing capacity, ecological environmental protection, high stability and the like, can effectively solve the problem that the ecology is difficult to recover after a fire, provides a stable growth environment for plants, and has a wide application prospect. The structure expands the application range of slope ecological restoration after the fire, and can better adapt to slopes with the gradient smaller than or equal to 60 degrees.

The invention provides a composition and application thereof in ecological restoration, and the composition is granular and is prepared from glume of corncob, polyvinyl alcohol, sodium bentonite and water. The composition can keep soil moisture and improve the soil structure, the raw materials are biomass materials, water retention is achieved, food sources can be provided for microorganisms and soil animals in soil, microcirculation of moisture and soil organisms is formed around the composition, the soil organisms can further increase nutrients in the soil, and the soil quality is improved. Soil carbon-solid continuous increase of soil organic matters and aggregates is realized, and the method has great significance on ecological restoration.

The invention relates to a large-scale high-yield and high-efficiency cultivation mode of pumpkins in saline-alkali soil, which adopts a composite modifier to improve the saline-alkali soil, and the composite modifier contains an organic fertilizer, a soil conditioner and a saline-alkali tolerant microbial strain in a specific proportion, so that the soil structure and fertility are effectively improved; a pumpkin variety with a salt-tolerant gene marker is selected, and the salt tolerance and the survival rate of seedlings are remarkably improved by combining a biochar seedling raising technology; through an intelligent drip irrigation system and a precise fertilization technology, the irrigation and fertilization amount is dynamically adjusted according to the growth stage of pumpkins and soil fertility, and the resource utilization efficiency is improved; a disease and pest control method combining physical and biological control is adopted, meanwhile, an S-shaped vine pressing method is combined to promote plant growth, and product quality tracing is achieved through a block chain technology. The problem of pumpkin planting in the saline-alkali soil is effectively solved, the yield and quality of pumpkins are remarkably improved, remarkable economic benefits and ecological benefits are achieved, and a new thought and method are provided for agricultural development of the saline-alkali soil.

The invention discloses a preparation method of an actinomycetes and waste mushroom matrix composite, belongs to the technical field of environmental microorganisms, solves the problems of low resource utilization rate, serious environmental pollution and the like in the existing waste mushroom matrix treatment, and overcomes the defects of loose soil structure and poor erosion resistance caused by direct returning of the waste mushroom matrix to the field. The method comprises the following steps: separating actinomycetes strains from soil, purifying and culturing the actinomycetes strains into a bacterial solution, crushing a waste mushroom substrate, adjusting the water content and the initial pH value, inoculating the bacterial solution into a pretreated substrate, and culturing in a dark place to form a composite material with biological activity and structural stability. Lignocellulose in a matrix is efficiently degraded by utilizing cellulase secreted by actinomycetes and lignin peroxidase, and a three-dimensional cross-linked structure is formed through a hypha network and humic acid-minerals, so that the mineralization efficiency of organic matters and soil agglomeration are improved. The composite material can be applied to the field of water and soil loss prevention and control, and efficient conversion of waste resources and collaborative improvement of soil ecological functions are achieved.

A soil conditioner belongs to the technical field of soil improvement, and comprises, by mass, 8-12 parts of chitosan oligosaccharide, 2-3 parts of cellulose oligosaccharide, 5-10 parts of alginate oligosaccharide, 2-6 parts of licorice oligosaccharide, 30-40 parts of humic acid, 5-8 parts of a microbial agent, 10-20 parts of minerals, and 5-10 parts of manganese oxide modified charcoal. According to the invention, oligosaccharide is used as an inducer, humic acid is used for constructing a soil skeleton, microorganisms are used for realizing nutrient circulation, and mineral substances and manganese oxide modified charcoal are used for providing long-acting support, so that biostimulation is used as a guide, the soil structure is adjusted, microbial flora is improved, and the crop yield is increased; the heavy metal polluted soil condition is improved.

The invention provides a method for inhibiting soil acidification and application of protozoa to preparation of biological fertilizer.The method comprises the step that the biological fertilizer containing the protozoa is inoculated into soil, and the protozoa comprises at least one of kidney-shaped worms and ochramydae. By the adoption of the technical scheme, the purpose of rapidly inhibiting soil acidification is achieved, the increase of the organic carbon content of soil can be remarkably promoted, meanwhile, different types of protozoa have different degrees of effects on key nutrient elements such as solid storage nitrogen and phosphorus, and a soil nutrient supply structure is optimized. In the aspect of improving the physical structure of the soil, the life activity of the protozoa can effectively promote the generation of soil aggregates, and the healthy soil structure is remodeled by improving the porosity and air permeability of the soil. In addition, the protozoa can also form a complex interaction network with microorganisms such as bacteria and fungi in soil, so that a microbial metabolic pathway is activated, and the microbial activity is remarkably improved.