1344 results about "Soil conditioner" patented technology

The invention relates to the technical field of cross-modal data fusion analysis of soil component detection and improvement agent preparation, in particular to a preparation method of a soil improvement agent based on component detection, which comprises the following steps: acquiring soil component data through a near infrared spectrometer, a high performance liquid chromatograph and an inductively coupled plasma mass spectrometer; an incremental principal component analysis algorithm is combined with an oscillation suppression function to update a covariance matrix in real time, a dynamic defect factor priority list is generated, a multi-objective optimization model improved based on NSGA-II is guided to integrate the soil pH value, humidity and organic matter content to construct a dose response curved surface, and a Pareto optimal solution set is solved. A sensor array collects environment feedback data, drives a transfer learning algorithm to calibrate parameters, a dynamic incidence matrix attenuation rate and optimal weight adaptive adjustment, iteratively outputs a modifier synergistic effect solution set through a closed-loop control mechanism, and solves the problems of difficult data fusion, principal component weight offset and component synergistic deviation. And the proportioning accuracy and stability are improved.

The invention relates to the technical field of land improvement, in particular to an alginic acid type multifunctional long-acting soil conditioner and a preparation method and application of the alginic acid type multifunctional long-acting soil conditioner. The core particle layer comprises an organic material, nano silicon, calcium magnesium polyphosphate, magnesium hydride, ammonium borate, rhamnose and an adhesive, and the slow release layer comprises clay minerals and alginate; the mass ratio of the clay mineral to the alginate to the organic material to the calcium magnesium polyphosphate to the nano silicon to the magnesium hydride to the ammonium borate to the rhamnose to the binder is controlled within a certain range. The soil conditioner provided by the invention is good in slow release performance, can release effective components durably and slowly, and has multiple effects of improving soil quality, providing nutrition, promoting crop growth, improving resistance and the like; the problems of soil acidification, heavy metal pollution, micro-plastic pollution, pesticide pollution, antibiotic pollution and the like in agricultural production can be effectively solved.

The invention belongs to the technical field of soil fertilizers, and particularly relates to a soil conditioner and a preparation method thereof. Wherein the soil conditioner is prepared from the following raw materials in parts by weight: 30 to 40 parts of modified charcoal, 20 to 30 parts of microbial complexing agent, 15 to 25 parts of humic acid and 1 to 5 parts of biological enzyme; according to the microbial complexing agent, dopamine grafted and modified nano silicon dioxide and hydroxyapatite form a composite shell, pseudomonas aeruginosa and bacillus subtilis are wrapped, and the microbial complexing agent has the functions of protecting microorganisms, adsorbing heavy metals and slowly releasing phosphorus elements; the modified biochar is compounded with the attapulgite through acid-base treatment to form a porous structure with physical inlaying and chemical functional groups synergistic, so that the adsorption and fixation capability on heavy metals and organic pollutants is remarkably improved; the biological enzyme accelerates organic phosphorus conversion, and enzymatic hydrolysate provides a phosphorus source for microorganisms, promotes microorganism breeding, effectively increases the content of available phosphorus in soil, and enhances the stability of a remediation system.

The invention relates to the technical field of saline-alkali soil improvement, in particular to a saline-alkali soil treatment and improvement method which comprises the following steps: S1, early-stage investigation and planning; s2, physical improvement; s3, chemical improvement; s4, biological improvement; s5, irrigation improvement; s6, later monitoring and maintenance; according to the saline-alkali soil treatment and improvement method, a traditional single improvement mode is broken through, physical, chemical, biological and engineering technologies are fused, a systematic improvement scheme is formed, and physical improvement effectively improves the soil structure and accelerates salt discharge through land leveling, deep ploughing, upturned soil sunning and concealed pipe laying for drainage; a soil conditioner and an acidic material are precisely applied for chemical improvement, and the soil acidity and alkalinity and ion composition are adjusted; in biological improvement, salt is absorbed by virtue of salt-tolerant plants and microbial agents, and soil microbial communities are improved; a fresh water resource or salt water desalination technology is reasonably utilized for irrigation improvement, and salt leaching and water resource recycling are achieved; through the synergistic effect of multiple means, the salt content of soil can be more efficiently reduced, and the soil structure is improved.

The invention relates to the technical field of soil conditioners, and particularly discloses an intelligent controlled-release core-shell alginate soil conditioner and a preparation method thereof.The conditioner is of a core-shell-layer three-layer structure and comprises a core layer, a middle shell layer and an outer layer, the three layers account for 30%, 40% and 30% of the total weight respectively, and the core layer mainly comprises improved alginate and nutrients; the middle shell layer mainly comprises chitosan and a microbial preparation; and the outer layer mainly comprises modified charcoal and magnetic nano # imgabs0 #. The preparation method comprises the four steps of core layer preparation, middle shell layer coating, outer layer coating and forming post-treatment, and multiple functions of accurate nutrient supply, efficient heavy metal fixation and soil microenvironment regulation and control are achieved through a core-shell-layer three-layer structure design and a pH / temperature / microorganism triple response mechanism by adopting a coaxial electronic injection and layer-by-layer self-assembly technology; the fertilizer has a remarkable improvement effect on sandy soil and saline-alkali soil, and the organic matter increasing rate reaches 40%.

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

The invention discloses a preparation method of an intelligent response type soil conditioner based on a nano composite material, and belongs to the technical field of soil improvement. The modifier is prepared from 10 to 15 parts of modified chitosan, 15 to 25 parts of nano silicon dioxide, 20 to 30 parts of biochar-loaded polyglutamic acid, 8 to 15 parts of humic acid-sodium alginate microcapsules, 3 to 5 parts of trace element slow-release particles, 1 to 2 parts of a pH response type cross-linking agent and 15 to 25 parts of a functional agent. The soil conditioner researched and developed by the invention can flexibly adapt to complex and changeable soil environments, can sensitively sense dynamic changes of key environmental indexes such as soil humidity, pH value and temperature, automatically and accurately regulates and controls the release rate and the action effect of the soil conditioner, realizes multiple functions such as water retention, acid regulation, fertility increase and pollution resistance in a one-stop manner, and has a wide application prospect. High efficiency, long-term effect and ecological environment friendliness of soil improvement are comprehensively achieved, a new road is opened up for global soil improvement, and agricultural yield increase, ecological restoration and urban green development are assisted.

The invention belongs to the technical field of soil improvement, and discloses a preparation method of a manganese slag-coconut shell charcoal-desulfurized gypsum composite soil improvement agent, the soil improvement agent and application. The preparation method of the soil conditioner comprises the working procedures of manganese residue pretreatment, coconut shell pretreatment, precursor preparation, precursor calcination and conditioner compounding, the pretreated coconut shell and the pretreated manganese residue are mixed and then subjected to ball milling, and a manganese residue-coconut shell precursor is obtained; calcining the prepared manganese residue-coconut shell precursor for 1-4 hours at the temperature of 450-650 DEG C in a protective gas atmosphere to obtain manganese residue-coconut shell biochar; and doping desulfurized gypsum powder into the prepared manganese slag-coconut shell charcoal, and uniformly dispersing to obtain the manganese slag-coconut shell charcoal-desulfurized gypsum composite soil conditioner. The method disclosed by the invention has the advantages of low energy consumption, low cost and capability of treating waste with waste, and the prepared soil conditioner has the advantages of improving soil nutrient balance, reducing nutrient loss and stabilizing pH, and is suitable for modifying the acid soil of the rubber plantation in the tropical region.

The invention discloses a potassium fulvate chelated macroelement water-soluble fertilizer with stress resistance and growth promotion functions, and relates to the technical field of water-soluble fertilizers, the potassium fulvate chelated macroelement water-soluble fertilizer comprises the following raw materials by weight: 167-210 parts of mineral source potassium fulvate, 450-460 parts of potassium nitrate, 300-310 parts of urea, 150-160 parts of potassium dihydrogen phosphate, 30-40 parts of potassium sulfate, 15-25 parts of EDTA-disodium, and 5-15 parts of citric acid. 0.5 to 1.5 parts of brassinolide and 4 to 6 parts of polyaspartic acid; according to the potassium fulvate chelated macroelement water-soluble fertilizer with the stress-resistant and growth-promoting functions, through chelation cooperation of potassium fulvate and nitrogen, phosphorus and potassium, the solubility of the chelated phosphorus element in water is increased, and the chelated phosphorus element can be more uniformly distributed in soil; by adopting an EDTA-disodium and citric acid composite chelating system, volatilization and loss of nitrogen elements are reduced, the problem of precipitation of calcium, magnesium and phosphorus is solved, and the soil conditioner is suitable for hard water areas and especially has outstanding performance in saline-alkali soil and arid areas.

The invention discloses a soil improvement measure decision-making method and system based on multi-modal deep learning. According to the method, firstly, soil state parameter change data and crop growth data of a target planting site are acquired, and a preliminary soil improvement scheme is established by combining the two data; then, a multi-modal deep learning network model is constructed, climate change characteristics and soil conditioner content change characteristics after improvement measures are implemented are fused and analyzed, and data characteristics of influences of climate changes on the conditioner are extracted; and based on the influence data, further identifying the failure characteristics of the modifier, including the failure propagation path and the dose change characteristics of the modifier. And finally, performing dynamic compensation on the original soil improvement measures according to the failure characteristics to form a refined compensation scheme. According to the method, intelligent adjustment and dynamic optimization of the soil improvement strategy can be realized, and the method has relatively high agricultural application value and popularization prospect.

The invention discloses a preparation process of a soil conditioner and application of the soil conditioner in soil improvement, and the preparation process comprises the following steps: S1, preparation of pretreated biomass; s2, preparation of composite biochar; s3, preparation of sulfhydrylated biochar; s4, preparing the modified composite biochar; and S5, uniformly mixing the modified composite charcoal, kaolin, humic acid, fly ash, slaked lime and vermiculite to obtain the soil conditioner. According to the soil conditioner, modified composite biochar prepared through specific functionalization is blended with kaolin, humic acid, fly ash, slaked lime and vermiculite according to a certain proportion, and the prepared soil conditioner has unique advantages in the aspects of improving soil organic matter, fixing carbon, providing microelements and especially regulating and controlling the activity of soil microorganisms; advanced complementation and synergistic interaction of all the components are achieved, and the comprehensive treatment requirement of complex degraded soil can be better met.

The invention discloses a method for preparing a soil conditioner based on infrared activation of coal gangue. The method comprises the following steps: S1, preparing activated coal gangue; s2, mixing the activated coal gangue with a slow-release fertilizer and modified zeolite, performing extrusion granulation to obtain basic particles, diluting a long-acting composite microbial inoculum with deionized water to obtain a microbial inoculum suspension, spraying the microbial inoculum suspension on the surfaces of the basic particles in a low-temperature spraying manner, and performing low-temperature drying to obtain a core material; s3, mixing the activated coal gangue with kaolin, humic acid, calcium hydrogen phosphate, sodium alginate and water to obtain coating slurry, and coating the core material with the coating slurry to obtain a shell-core material; s4, mixing the modified activated coal gangue with polyvinyl alcohol, talcum powder, a composite additive and water to obtain outer coating slurry, and coating the outer coating slurry on the core-shell material to obtain the soil conditioner. According to the method, the coal gangue is subjected to infrared activation treatment and then prepared into the soil conditioner with a high additional value, and waste resource utilization is achieved.

A method of production of granular soil conditioner based on a mixture of biochar and organic fertilizer comprising the following steps:Biochar mixing with animal excrements in a ratio of 1 part of biochar to 0.1 to 0.4 parts of the excrement dry matter, adding to the base of a mixture of soil bacteria belonging to at least two genera of the following: bacteria of the Rhizobia genus, nitrifying bacteria of the Azospirillum or Azotobacter genus, bacteria of the Pseudomonas genus, and bacteria of the Bacillus genus,topping the bacteria-endowed base with water in the weight not more than double the weight of the bacteria-endowed base and letting the mixture ferment for at least 5 days,draining off the excess water and drying the bacterial base so that the water content does not exceed 20% by weight,adding a mixture of spores of fungi containing at least two of the group including Trichoderma, Arbuscular mycorrhizal fungi, Ectomycorrhizal fungi to the base-bacteria compound in a total quantity corresponding to 0.2 to 1% of the dry matter weight of the base-bacteria compound.

The invention belongs to the technical field of soil improvement, and relates to a soil conditioner for saline-alkali soil and a soil improvement method. The soil conditioner comprises vinegar residues, chitin, glucose, a composite biological preparation, a modified gel and a functional additive, the composite biological agent comprises bacillus subtilis powder, bacillus licheniformis powder, trichoderma spore powder, brown algae powder and light calcium carbonate; the functional auxiliary agent comprises modified bentonite, polyglutamic acid, pregelatinized starch and biochar potassium humate. Through the synergistic effect of multiple components and structural design optimization, systematic remediation of physical properties, chemical properties and biological activity of the saline-alkali soil is achieved. According to the technology, the limitation of single function of a traditional improvement measure is broken through, and the long-standing technical problems of return salt rebound, low fertility, microbial community imbalance and the like in saline-alkali soil treatment are effectively solved by constructing a multi-layer and multi-dimensional soil improvement system.

According to the preparation method of the low-temperature humified coal gangue-agriculture and forestry solid waste porous slow-release humic acid water-soluble fertilizer, the coal gangue is subjected to magnetic separation and flotation to remove impurities, then the composite chlorinating agent is used for low-temperature chlorination, heavy metal is effectively removed, and meanwhile energy consumption and environmental risks are reduced. Then, under a controlled low-temperature condition, through microwave assistance and specific atmosphere adjustment, a humification reaction is triggered, meanwhile, formation of a porous structure of the material is triggered, and the water solubility and the slow release effect of the fertilizer are enhanced. According to the method, the resource utilization rate of the coal gangue is increased, the high-efficiency soil conditioner is effectively generated through an innovative low-temperature treatment process, and good environmental protection benefits and economic values are achieved. Through the structural design of the obtained fertilizer, the fertilizer can respond to environmental factors, the nutrient release rate is automatically adjusted, and plant absorption and soil health are optimized.

The invention provides a soil conditioner as well as a preparation method and application thereof. The soil conditioner provided by the invention is prepared from the following raw material components in parts by weight: 35 to 45 parts of straw biochar, 55 to 65 parts of biological excrement, 0.01 to 0.5 part of cellulose degradation compound bacteria, 1 to 5 parts of nano silicon dioxide and 3.5 to 4.5 parts of bovine serum albumin. The soil conditioner provided by the invention is good in composting quality, high in composting efficiency, environment-friendly and suitable for industrial production.

The invention belongs to the technical field of soil improvement, and discloses a preparation method of a humic acid biochar saline-alkali soil conditioner. The preparation method comprises the following steps: by taking waste edible fungus chaff as a raw material, activating the waste edible fungus chaff with a KOH solution, pyrolyzing the waste edible fungus chaff under a limited oxygen condition to obtain fungus chaff-based biochar with a porous structure, mixing the fungus chaff-based biochar with humic acid, a sodion replacement material (desulfurized gypsum powder and / or calcium chloride) and purified water according to a certain mass ratio, and drying and fixing at medium temperature to obtain the modifier. According to the modifier, the porous adsorption performance of the biochar, the pH adjustment and agglomeration improvement functions of the humic acid and the sodium ion replacement capacity of the calcium source material are comprehensively exerted, the sodium ion content in the saline-alkali soil is synergistically reduced, and the soil agglomeration structure and the water and fertilizer retention capacity are improved. The prepared modifier is especially suitable for soil treatment of moderate and severe saline-alkali soil in which the ratio of sodium ions to exchangeable cations exceeds 10%, and has agricultural waste resource utilization and ecological restoration values.

The invention provides an acid soil conditioner and a preparation method thereof, and belongs to the technical field of soil conditioners. The soil conditioner is prepared from the following raw materials in parts by weight: 30-40 parts of pH-sensitive hydrogel, 3-7 parts of slow-release nitrogen-fixing bacteria microcapsules, 5-8 parts of soil improvement bacteria, 10-20 parts of a chitosan / sodium alginate modified compound, 17-20 parts of fly ash and 18-22 parts of phosphogypsum. According to the prepared acid soil conditioner, the microorganism and chemical improvement effect is adopted, the pH value of soil can be obviously increased, the granular structure of the soil is improved, the buffering capacity of the soil is enhanced, the fertility of the soil is improved, the heavy metal content of the soil is reduced, the quality of the soil is improved, and the crop yield is increased, so that the acid soil conditioner has wide application prospects.

The invention relates to the technical field of soil remediation, in particular to a biochar-humic acid-calcium alginic acid composite saline-alkali soil modifier and a preparation and application method thereof. The modifier adopts a multi-layer structure design: biochar is pre-adsorbed by calcium chloride, compounded with sodium humate, and then crosslinked with sodium alginate to form a gel to form a composite inner core; secondly, sulfobetaine methacrylate and vinyl phosphonic acid are introduced into a sodium alginate molecular chain through graft polymerization, and modified sodium alginate is obtained to serve as an outer layer coating material; and finally, dipping the composite inner core into the outer layer solution, and carrying out graded recalcification by calcium chloride and short-time treatment by sodium sulfate to obtain a final product. Through the synergistic effect of calcium ion slow release of the inner core and zwitterionic characteristics of the outer layer, efficient replacement and long-term stable regulation and control of soil sodium ions are achieved, the pH value, the conductivity and the alkalization degree of soil are remarkably reduced, the water holding capacity is effectively improved, and the soil conditioner is suitable for sustainable improvement of moderate and severe saline-alkali soil.

A soil conditioner system includes a bit body. A first buffer bit and a second buffer bit may be mounted in a back-to-back configuration on the bit body. The first buffer bit and the second buffer bit may be mounted in respective recesses formed in the bit body on opposite sides of the bit body. The bit body includes a mounting surface at a second end of the bit body that is used to rigidly couple the bit body with a horizontally rotatable member such that the bit body extends transversely away from an outer surface of the horizontally rotatable member. The bit body includes a first side and a second side disposed on opposing sides of the bit body to face opposite directions of horizontal rotation of the horizontally rotatable member. The first and second sides are positioned between the mounting surface and the first buffer bit and the second buffer bit, respectively.

The invention relates to the technical field of forestry planting, in particular to a water retention and improvement afforestation method for dry soil. The afforestation method comprises the following steps: (1) preparing a soil conditioner; (2) preparing a water retention material; (3) seedling planting and afforestation; and (4) performing conventional management after seedling field planting. When the method is used for afforestation, the afforestation survival rate can be effectively increased.

The invention provides a composite soil conditioner and a preparation method thereof, and belongs to the technical field of agriculture, and the preparation method comprises the following steps: step S1, preparing a multi-arm polymer; step S2, preparing modified biochar; step S3, preparing a sustained-release microcapsule; s4, mixing the modified biochar, the sustained-release microcapsules and the sodium carboxymethyl cellulose solution, and granulating to obtain the composite soil conditioner. The soil conditioner disclosed by the invention can achieve the purposes of efficiently adsorbing heavy metals, adjusting the pH value of soil and helping the soil to retain water.

The invention belongs to the technical field of solid waste resource utilization and environmental governance, and discloses a method for producing an organic soil conditioner by using biomass bamboo reed to treat red mud, and the method for producing the organic soil conditioner by using biomass bamboo reed to treat red mud comprises the following specific steps: S1, bamboo reed pretreatment and crushing; s2, pickling and dealkalizing the red mud; s3, mixed pyrolysis and iron element magnetization; s4, magnetic separation and iron powder collection; s5, purifying and utilizing the biomass gas; s6, pretreatment of a mixture obtained after iron separation; and S7, preparing the land improver. Through cooperative treatment of the biomass bamboo reed and the red mud, efficient recovery of iron elements is achieved, the conversion rate is 85%-95%, the calorific value of the biomass gas is increased to 3000 kcal / m < 3 > and increased by 150%, the organic soil conditioner capable of preserving moisture and fertility is prepared, fine utilization of resources is ensured through the multi-link process, 70%-85% of natural gas can be replaced by the biomass gas, and the environment-friendly and energy-saving effect is achieved. And a solid waste treatment-resource recovery-ecological restoration industrial chain is formed, and the method has both environmental and economic benefits.

The invention discloses a soil improvement regulator, which is prepared from the following raw materials in parts by weight: 10 to 50 parts of secondary aluminum ash residue subjected to innocent treatment, 5 to 10 parts of tea bran, 1 to 2 parts of complex microbial inoculants, 2 to 6 parts of magnetized seaweed mud, 10 to 20 parts of charcoal, 5 to 10 parts of bagasse and 5 to 10 parts of hydrolyzed amino acid, the complex microbial inoculants comprise bacillus subtilis, nitrogen-fixing bacteria, photosynthetic bacteria, nitrifying bacteria and selenium-enriched strains. According to the soil improvement conditioning agent, high nutrient elements in the secondary aluminum ash residues are reserved, harmful elements are removed, the magnetized seaweed mud and the complex microbial inoculants are added, through the synergistic effect of the multiple elements, the soil improvement conditioning agent has the good soil improvement effect, and reutilization of the secondary aluminum ash residues is achieved. The invention further discloses a preparation method of the soil improvement regulator.

The invention discloses an organic fertilizer with a soil improvement function and a preparation method of the organic fertilizer, and the integrated target of heavy metal passivation, saline-alkali regulation and fertilizer efficiency slow release is achieved through kitchen waste, straw and biochar multi-source organic matter compounding, staged functional fungicide adding and intelligent temperature control processes. After the soil conditioner is applied, the soil pH adjusting amplitude reaches 1.0-1.5 units, the heavy metal migration rate is reduced by 65% or above, the crop yield is increased by 15%-25%, and the soil conditioner is suitable for green remediation of degraded soil.

The invention discloses a multifunctional talaromyces sp. Fungus RB-2 for preventing and controlling ginger stem rot and application of the multifunctional talaromyces sp. Fungus RB-2, and belongs to the technical field of microorganisms. The talaromyces sp. Fungus RB-2 is preserved in the China Center for Type Culture Collection, the preservation number of the talaromyces sp. Fungus RB-2 is CCTCC NO: M 20251722, and the preservation date of the talaromyces sp. Fungus RB-2 is July 28, 2025. The talaromyces sp. Strain RB-2 with the effect of inhibiting the growth of pathogenic bacteria is separated and purified, and the strain RB-2 has remarkable antagonistic activity on ginger stem rot pathogenic bacterium group pythium aphanidermatum and various economic crop pathogenic bacteria and has the potential of being developed into a biocontrol inoculant. The talaromyces sp. Strain RB-2 also has phosphorus dissolving and growth promoting capabilities, can remarkably promote the growth of ginger, and has the potential of preparing a soil conditioner and a microbial fertilizer, so that the micro-ecology of soil is improved, and the productivity of crops is enhanced.

The invention discloses a method for synergistically improving soil carbon sequestration yield and efficiency by using a modified carbon material, and belongs to the technical field of agriculture. The method comprises the following steps: applying a modified carbon material and a soil conditioner into soil at the same time before cultivation; the preparation method of the modified carbon material comprises the following steps: pre-treating plant straws, gypsum and attapulgite tailings, uniformly mixing, drying, carrying out high-temperature pyrolysis carbonization, cooling and granulating, thereby obtaining the modified carbon material. Through one-time large-scale application of the modified carbon material and the soil conditioner and combination of precise application of the field nitrogen fertilizer, the effects of soil recarburization and quality improvement and crop yield and efficiency increase can be rapidly achieved, the synergistic effect of plough layer reservoir expansion and recarburization and capacity expansion is achieved, the soil structure and quality are remarkably improved, the productivity of the soil is improved, and the method is suitable for large-scale popularization and application. The negative influence of agricultural production on the ecological environment is further reduced, and the sustainable and healthy development of cultivated land is promoted.

The invention discloses a multifunctional fully-degradable mulching film with water taking, slow release and soil improvement functions and a preparation method thereof, and belongs to the technical field of agricultural mulching films. The method comprises the following steps: preparing a PVA aqueous solution; the preparation method comprises the following steps: extracting a 3-8wt% nano cellulose solution from plant fibers by a two-step DES method; preparing a silicon source dispersion liquid; adding 10 parts of a nanocellulose solution, 1.25 parts of a silicon source dispersion liquid and 20 parts of glycerol into 100 parts of a PVA aqueous solution to obtain a film coating liquid; adding humic acid and an ion-based fertilizer into the film coating liquid, uniformly mixing, and carrying out curtain coating and drying to form a base film; the preparation method comprises the following steps: preparing 8-12wt% of a hydrophobic degradable material solution, and performing electrostatic spinning on a base film by using the solution to form a Janus structure, thereby obtaining the multifunctional full-degradable mulching film which can realize water extraction from air. The device has a function of taking water from air and a fertilizer slow release function, can release different fertilizers in a gradient manner, and meets the requirements of plants in different growth cycles. After being used, the soil conditioner can be directly turned into soil, the rest part directly acts with the soil, and PVA and humic acid synergistically improve the soil environment.

The invention relates to the technical field of agricultural biology, in particular to water-fertilizer integrated water-soluble fertilizer for cotton and a preparation method. Compound amino acid, a humic acid-fulvic acid compound, a medium trace element chelating system, a zinc-graphene compound, an alginate oligosaccharide-gamma-aminobutyric acid compound, a compound microbial agent, nano titanium dioxide, sodium 2-naphthoxyacetate and a soil conditioner are scientifically proportioned; the water-soluble fertilizer with multiple functions of comprehensive nutrient supply, biological stimulation, soil improvement and the like is prepared. In the preparation process, a spray freeze drying technology is adopted to ensure that the retention rate of active ingredients is greater than or equal to 95%, and then twin-screw extrusion granulation and screening are performed to finally obtain the fertilizer. In this way, the technical problem that in the prior art, the fertilizer only pays attention to providing basic major elements such as nitrogen, phosphorus and potassium, and neglects the important effect of microelements on cotton growth, so that the requirement of modern cotton planting for fertilizer multifunctionality is difficult to meet is solved.

The invention belongs to the technical field of soil conditioners, and particularly relates to a rice field soil conditioner and application thereof. The invention relates to a rice field soil conditioner. The rice field soil conditioner is composed of a compound fertilizer and a complex microbial inoculant, the compound fertilizer is prepared by mixing the following components in parts by weight: 20-30 parts of rice husk biochar, 20-30 parts of shell powder and 10-15 parts of potassium fulvate, the complex microbial inoculant is prepared by mixing the following components: 3-4 parts of paenibacillus polymyxa; 2 to 3 parts of bacillus marinus; and 1.5 to 2 parts of bacillus firmus. The soil conditioner is composed of a compound fertilizer and a complex microbial inoculant, the complex microbial inoculant is formed by mixing three microbial inoculants of paenibacillus polymyxa, paenibacillus marinus and bacillus firmus, and the soil conditioner is beneficial for improving soil fertility and increasing the thousand seed weight of rice, so that the yield of the rice is increased. And the chalky grain rate of the rice can be reduced, the rice roughness, the head rice rate, the amylose content, the gel consistency and the like can be improved, the rice quality can be improved, and the economic benefit of the rice can be improved.