3000results about How to "Improve physical and chemical properties" patented technology

The invention discloses an expanded type fireproof coating and a preparation method thereof, which are characterized by comprising the steps of grinding and dispersing 15-35 percent of microcapsule flame retardants, 5-10 percent of fillers and 10-30 percent of solvent according to the percentage of the total mass of the coating after preparation until the fineness thereof is less than 90 microns;then adding and dispersing coating matrixes and additives which respectively take up 20-40 percent and 1-5 percent of the total mass of the coating after preparation until the system is uniform; and alternatively adding flame retardant synergist agents which account for 0-10 percent of the total mass of the coating after preparation before grinding. The obtained expanded type fireproof coating hasgood stability, overcomes the defects of poor high-temperature resistance, poor anti-aging performance, poor water resistance and the like in the traditional organic expanded type fireproof coating,lowers the use amount and cost of the flame-retardant additives which all realize non-halogenation, does not cause larger impact on the environment, and has very good application prospects.

The invention relates to a high-conductivity aluminum alloy material for a cable and a preparation method thereof. The aluminum alloy material comprises the following components in percentage by weight: 0.25-0.80 percent of iron element, 0.02-0.15 percent of boron element, 0.1-1.5 percent of rare earth element and the balance of aluminum and inevitable impurities. The aluminum alloy is formed by adding an aluminum alloy intermediate alloy, an aluminum-boron alloy and an aluminum-rare earth intermediate alloy into an aluminum ingot of which the purity is more than 99.80 percent by weight and carrying out a casting process and annealing treatment on the mixture. Compared with a common electric aluminum conductor, the prepared aluminum alloy conductor has more excellent conductive performance and the conductivity reaching or exceeding 62.5 percent IACS (International Annealed Copper Standard); the aluminum alloy conductor treated by using a special process has excellent flexibility and creep resistance; and compared with a common electric aluminum conductor, the prepared aluminum alloy material used as a cable extrusion insulating lead core is more energy-saving and safer.

The invention relates to a bio-organic compound fertilizer, which comprises the following components in part by weight: 10 to 30 parts of organic matter, 2 to 10 parts of compound microbial inoculants, 5 to 20 parts of humic acid, 5 to 20 parts of amino acid, 4 to 10 parts of chitin, 1 to 5 parts of polypeptide, 530 parts of nitrogen, phosphorus and potassium, 5 to 10 parts of secondary and trace elements, 5 to 15 parts of algae fertilizer, 5 to 10 parts of zeolite powder and 1 to 5 parts of synergistic agent. Through the scientific and rational formula, the bio-organic compound fertilizer achieves nutritive equilibrium and can satisfy the need of crop growth in nutrient. The microbial inoculants are added to quickly degrade natural macromolecular organic compounds into the organic fertilizer and decompose organic pollutants, which effectively improves the capacity of crops in the absorption of nutrient components, reduces the waste of the fertilizer and reduces the damage of the chemical fertilizer to soil to further achieve the nutritive equilibrium, satisfy the need of the crop growth in the nutrient, achieve the aims of low investment and high output value, improve the quality of the crops and improve the economic benefit brought by the crops.

The present invention provides a microbe composition, tobacco-dedicated biological organic fertilizer containing the composition, its usage method. The microbe composition comprises aztobacter sp., pseudomonas fluorescence, Bacillus megaterium, bacillus mucilaginosus and bacteria capable of preventing and treating plant disease and insect pests. The microbe composition is mixed according to proportion with oligochitosan, lignite, grass charcoal, and bean cake and fermented to make bacteria powder fertilizer, and further added with potassium-enriching shale, bentonite and water-keeping agent to make bacteria granule fertilizer. The tobacco-dedicated biological organic fertilizer contains the above-mentioned bacteria powder fertilizer and granule fertilizer which contains natural mineral and good organic substance, C / N value being large, which fit the growth rule of tobacco plant and promote potassium fertilizer efficiency and possesses long-lasting potassium-supply capability and provides effective ingredient for tobacco.

The invention discloses a preparation method of a hydrocracking catalyst. The method comprises the steps of preparing an acidic mixed solution A containing hydrogenation reactive metals and silicon, preparing a sodium metaaluminate alkaline solution B, and then adding the acidic mixed solution A, the alkaline solution B and CO2 to a reaction tank filled with clear water in parallel to prepare gel; and then adding turbid liquid of a Y type molecular sieve, mixing the substances uniformly, filtering, drying and forming the mixture, and then washing, drying and roasting the product, thus preparing the hydrocracking catalyst. The method has the beneficial effects that a clean preparation method is adopted, so not only can the catalyst be easily formed and the strength of the catalyst be improved, but also the pore volume and specific surface area of the catalyst can be increased and the dispersity of metals in the catalyst can be improved, thus the catalyst has higher hydrocracking activity, middle oil selectivity and stability; and the catalyst prepared by the method can be used for a single-section hydrocracking process of a non-refining section or a one-section serial hydrocracking process of a refining section.

The invention discloses slow-release fertilizer with the effect of soil remediation, which is prepared by polyhydroxyalkanoates which can be completely biodegraded, organic and inorganic nutrients and other substances, by slow-releasing the organic and inorganic nutrients, microorganism propagation and sustained and rapid growth of plants can be promoted, the bioactivity and water solubility of polycyclic aromatic hydrocarbons are quickened, and simultaneously, the defects of fertilizer loss and repeated fertilization can be avoided, thereby saving the cost and enhancing the soil remediation efficiency. The invention also discloses a soil pollution remediation method by utilizing the slow-release fertilizer, plants with the remediation effect are planted in the soil with the slow-release fertilizer, and efficient, environment-friendly and sustained remediation of the soil polluted by the polycyclic aromatic hydrocarbons (PAHs) can be realized by utilizing the microorganism-plant remediation technology.

The invention belongs to the field of environmental protection and discloses a soil heavy metal repairing agent and a preparation method thereof. The soil heavy metal repairing agent comprises a high molecular polymer and a filler, wherein the high molecular polymer can form a stable chelate compound with heavy metal ions to effectively adsorb and fix free heavy metal ions in soil, reduce the activity of heavy metals, stop crop absorption and control the migration of the heavy metals by virtue of adsorption of the filler. The preparation method of the soil heavy metal repairing agent disclosed by the invention is simple to operate and suitable for industrial production. A test result shows that the soil heavy metal repairing agent disclosed by the invention can reduce the activity of the heavy metals in soil, improve the physical and chemical properties of the soil, reduce the acidity of the soil and improve the soil fertility to promote the growth of rice, improve the yield of the rice and reduce the content of the heavy metals including cadmium, lead and arsenic in the rice so as to ensure that the content of the heavy metals including cadmium, lead and arsenic in the rice is less than a safe value of 0.2mg / kg.

The invention relates to a transparent butyl hot-melt sealant, which is prepared with the following raw materials in parts by weight: 1-20 of butyl rubber, 10-80 of polyisobutylene, 5-30 of plasticizer, 3-10 of tackifier, 3-10 of softener, 0.1-5 of stabilizer, 5-30 of filler and 0.1-5 of adhesion promoting agent. The matching use of the butyl rubber and the polyisobutylene with different molecular weights facilitates the improvement of the strength and workability of the transparent butyl hot-melt sealant. The filler is selected from fumed silica or precipitated silica, which ensures the appearance transparency of the product. Due to the addition of the stabilizer and the strict control of the production process, the appearance transparency and the physical and chemical properties of the product are enhanced. The use of the active group substituted alkoxy silane as a coupling agent improves the adhesion of the product to glass, aluminum and other substrates.

A method for culturing ecological grassland to prevent desertization includes such steps as using fence to encircle a ground region for inhibiting pasture, loosening soil, sowing grass, planting Chinese tamarisk or puccinellia in saline-alkaline land, irrigation, applying fertilizer and planting shelter forest.

The invention provides a soil improvement type straw compound organic fertilizer and a preparation method of the soil improvement type straw compound organic fertilizer. The soil improvement type straw compound organic fertilizer is prepared from the following raw materials in parts by weight: 30 to 35 parts of rice straw, 25 to 30 parts of animal excrement, 20 to 25 parts of biological charcoal, 10 to 15 parts of soybean meal, 5 to 10 parts of cassava residue, 5 to 10 parts of diatom ooze, 2 to 2.5 parts of plant ash, 2 to 2.5 parts of turfy soil, 2 to 3 parts of zeolite powder, 3 to 4 parts of a microorganism bacterium agent, 2 to 3 parts of sodium benzoate, 2 to 3 parts of ammonium monohydrogen phosphate, 1 to 2 parts of calcium chloride, 1 to 2 parts of amino acid, 1 to 2 parts of starch, 1 to 2 parts of molasses powder and 1 to 2 parts of humic acid. The soil improvement type straw compound organic fertilizer takes plant wastes as raw materials; the quality of soil can be easily improved and the production cost can also be reduced, so that the physicochemical properties of the soil are improved, and the structure of the soil is comprehensively improved, and furthermore, the soil quality has the effects of softness, air permeability, water retention and fertilizer conservation; the aim of producing an environment-friendly high-quality organic fertilizer through preferably selecting heavy metal capable of being passivated, the biological charcoal capable of improving the fertilizer efficiency of the organic fertilizer, and conversion products of organic wastes including the biological humic acid and the like as composting base materials, and optimizing a composting process.

The invention relates to a solar-absorbing coating used for converting solar energy (sunlight) into thermal energy, and provides three kinds of selective solar-absorbing coatings. The coating is prepared from resin, absorbents, extender pigments, addition agents and solvents, and the color of the coating is formed by mixing a plurality of absorbents (pigments); the coating mainly plays the role of converting the solar energy into the thermal energy, and has the certain function of decoration; and the color of the coating is brownish red, bottle green and black, and the absorptance of the coating to sunlight is 0.95, therefore the coating can be used as a heat-absorbing coating for solar water heaters, solar greenhouses and military image decoys.

The invention discloses an organic-inorganic compound fertilizer and a preparation method thereof. The organic-inorganic compound fertilizer comprises the following raw materials in parts by weight: 25-30 parts of green algae, 12-17 parts of humic acid, 7-12 parts of bagasse mortar, 8-12 parts of saw dust, 7-15 parts of vermiculite, 5-10 parts of filtration mud, 5-10 parts of yeast organic waste water concentrated liquid, 5-8 parts of cane slag, 2-5 parts of sugarcane top and 2-5 parts of microbial strain liquid. The amount of the compound fertilizer organic matter is large than or equal to 55 weight parts, the total amount of NPK inorganic matters is large than or equal to 12 weight parts, the amount of the moisture is less than or equal to 25 weight parts, the effective viable count is large than or equal to 2 hundred million / gram, and the pH is 5.0-8.5. The preparation method comprises the following steps: fermenting twice by using microbial strains; adding inorganic porosity vermiculite, evenly mixing, and naturally drying so as to obtain the organic-inorganic compound fertilizer. Biodegradable agricultural and industrial production waste water, waste slag and sugarcane top regeneration organic matters are fully utilized as the raw materials, thereby improving the acidity and basicity of soil, improving the cation exchange capability (CEC) of the soil, improving the utilization of fertilizer, promoting the growth of crop and increasing the yield of the crop. The organic-inorganic compound fertilizer has the advantages of good ecological benefits and circular economy benefits and can be used as an additional fertilizer for crops such as sugarcane, watermelon and the like.

The invention discloses a fruit tree special-purpose fertilizer which is prepared from the raw materials of, by weight: 300-340 parts of live stock and poultry manure, 200-230 parts of soybean stalk, 100-120 parts of bagasse, 100-120 parts of air-dried sludge, 50-55 parts of beer grains, 30-35 parts of ox blood powder, 20-24 parts of cooked soybean, 60-65 parts of rock phosphate powder, 14-18 parts of bamboo charcoal, 10-12 parts of maifanite powder, 12-15 parts of zeolite powder, 30-35 parts of urea, 50-55 parts of mono-ammonium phosphate, 20-23 parts of ammonium sulfate, 6-9 parts of an EM inoculant, 10-15 parts of a soil conditioner, and proper amount of water. According to the fruit tree special-purpose fertilizer, wastes such as live stock and poultry manure, soybean stalk, bagasse, air-dried sludge, and the like are adopted as main raw materials, such that resource is saved, and problems such as environment pollution are solved. The raw materials are convenient to obtain, and are cheap, such that good environmental and economic benefits are provided. The fertilizer provided by the invention has the advantages that: with the fertilizer, beneficial microbe number and activity are improved, soil physiochemical traits are improved, soil nutrients are increased and balanced, and pesticide and chemical fertilizer residue and other harmful substances in soil can be degraded.

The invention relates to a novel composite material, and particularly relates to a preparation method and application of a nitrogen-doped graphene and cobaltosic oxide hollow nanosphere composite material. The novel composite material comprises a doped graphene substrate and cobaltosic oxide hollow nanospheres which is attached to the surface of the doped graphene substrate. Melamine resin is taken as a cross-linking reagent for integrating graphite oxide with Co<2+> into a single coordination precursor. The preparation method comprises the following steps: in a pyrolysis process of the precursor, taking the melamine resin as a new nitrogen source to uniformly dope the graphene with nitrogen, fixing cobalt oxide which is generated in situ, and finally preparing the nitrogen-doped graphene / Co3O4 hollow nanosphere composite material with a sandwich structure. The composite material has a graded porous structure, is high in specific surface area, more in active sties, good in electron conductivity and ion conductivity, and good in application prospect in the field of new energy resources and catalysis.

The invention relates to the technical field of polymer processing, in particular to a wood plastic composite material and a preparation method thereof. The invention discloses the wood plastic composite material which is prepared from the following raw materials in weight percentage: 30 to 60 percent of wood fibre, 30 to 60 percent of waste plastics, 1 to 4 percent of stearic acid, 1 to 4 percent of industrial white oil, 1 to 3 percent of a coupling agent and 4 to 6 percent of a lubricant. The invention also discloses the method for preparing the wood plastic composite material and wood plastic products which are prepared from the wood plastic composite material. The wood plastic products produced by using the wood plastic composite material as a raw material are superior to similar products in the appearance quality and the physiochemical performance.

The invention relates to a compound microbial organic fertilizer and a preparation method thereof. The compound microbial organic fertilizer is prepared from the following ingredients in parts by weight: 1-4 parts of trichoderma viride JUWEI002 fermentation liquor, 1-4 parts of bacillus subtilis JUWEI001 fermentation liquor, 20-30 parts of turfy soil, 33-38 parts of tobacco residue, 33-38 parts of silkworm faeces, 6-7 parts of calcium powder and 1-2 parts of potassium fulvate. The compound microbial organic fertilizer disclosed by the invention has the advantages that the quality of crops can be remarkably improved, the yield of the crops is increased, and the soil structure is improved.

The invention provides a conditioner for artificial soil on a slope with the function of water retention, which is prepared by the following raw materials according to weight percentage by compounding and mixing: 10 to 25 percent of livestock manure, 25 to 50 percent of super absorbent resin, 5 to 15 percent of ground phosphorite, 1 to 5 percent of anhydrite powder, 20 to 35 percent of humic acid, 5 to 10 percent of zeolite powder, 1 to 10 percent of chitosan, 0 to 10 pecent of bentonite, 0 to 5 percent of phosphate ester and 0 to 5 percent of citrate acid. The conditioner has obvious effects of enhancing the water retention of soil, reducing the water loss and soil erosion, improving the physical and chemical properties of soil and promoting the revegetation.

The invention relates to the technical field of severe saline-alkali soil greening, in particular to a method suitable for directly planting macrophanerophyte in natural soil of coast silt severe saline-alkali soil of which 1 m soil body contains more than 2.0 percent of total salt. The method comprises the following steps: building a burrock-type platform field through drainage trenching; paving a water supplying pipeline; broadcasting phosphogypsum and humic acid; then broadcasting semi-decomposed maize straw manure for soil amelioration; conducting mechanical deep tillage and land leveling; paving water seepage pipes; leaching salt through fresh water; electing a macrophanerophyte type; planting. According to the invention, the physical chemical property of the soil is improved through 'soil amelioration, fertilization and deep tillage', so that soil leaching is accelerated while the soil is fertilized. Therefore, a soil ecological environment suitable for tree growth is formed gradually, and lasting greening is further realized. Compared with the greening method in which the ground is elevated through soil dressing, the method has the advantages that cost is reduced; the macrophanerophyte survival rate is higher than 95 percent; low-cost lasting greening of severe saline-alkali soil is realized in very deed; the economic benefit and ecologic landscape of severe saline-alkali soil greening are improved remarkably.

The invention discloses a soil melioration matrix prepared from garden waste and a preparation method of the soil melioration matrix. The soil melioration matrix comprises the following components in parts by weight: 0.05-0.08 part of garden waste subjected to fermentation treatment by a microorganism bacterium agent, 0.01-0.03 part of natural mineral and 0.005-0.01 part of polymaleic anhydride. According to the invention, the soil melioration matrix is added to saline soil, so that the physicochemical property of soil can be improved, the porosity is increased, the permeability is strengthened, the soil structure is improved, and the salt-obstruction and fertilizer conservation effects are remarkable.

The invention discloses a method for remedying heavy metal polluted mining soil, which includes: using fish-scale pits to prepare the land; separately stacking the soil of different stratums in excavation; separating the surface soil and the undersoil; allowing unpolluted soil to stand by; filling the finished tree pits with the surface soil obtained in excavating the tree pits; well mixing the tree pit filling with the unpolluted soil excavated on the spot or borrowed soil, and filling the mixture into the tree pits; and finally filling with the undersoil or borrowed soil. On the basis of the prior art, ingredients of the filling are changed, so that planted plants are easy to survive and can successfully live through the transitional period, and the basis for remediation later is laid.

The invention relates to a soil consolidation grouting material of geopolymer, which is composed of fly ash, slag, steel slag, high-calcium fly ash, alkali-activator, nonpolar alkaline surface active agent and water, wherein the nonpolar alkaline surface active agent is obtained by reacting curled hair of human or animal with sodium hydroxide, and the pH value of the water is larger than 6.5. The soil consolidation grouting material of geopolymer of the invention is high in initial strength, fine in water stability, liquidity, frost-resisting property and service durability and the like, simultaneously, the soil consolidation grouting material of geopolymer has the characteristic of low manufacturing cost and reducing environmental pollution.

The invention discloses a high-efficiency multi-bacterial activity biogas residue biofertilizer and a preparation method thereof, and relates to the field of farm fertilizers. The biofertilizer is prepared by mixing and granulating 44 to 54 weight parts of biogas residue, 10 to 15 weight parts of potassium chloride, 10 to 15 weight parts of humic acid, 0.4 to 0.6 part of secondary and micro-element, 0.4 to 0.6 weight part of microbe, 5 to 10 weight parts of urea, 10 to 15 weight parts of monoammonium phosphate and 5 to 10 weight parts of ammonium chloride. The high-efficiency multi-bacterial activity biogas residue biofertilizer has the characteristics of better multiple bacteria co-existing environment, stronger bioactivity, higher fertilizer efficiency, complete organic matters, effective micropopulations and chemical nutrients, controlled-release effect and the like, can be used as a fertilizer for rice, also can be used as a fertilizer for Upland food crops, vegetables, melons and fruits and fruit trees, and can improve the fertility of land and the utilization rate of the fertilizer, improve the quality of agricultural products, enhance plant diseases and insect pest resistance and drought resistance, purify and repair soil and the like after being applied.

The invention provides a microbial straw rotting agent, which adopts the strains having mutual synergistic action without generating antagonistic action as production strains: cellulase preparation, Fomes annosus, Bacillus subtilis, Thermobifida fusca, Bacillus pumilus and Saccharomyces cerevisiae. The microbial straw rotting agent has high decomposition effect on the main components of the straws, has biological control function, and can inhibit growth of crop sheath blight, rice blast, wheat root rot, strawberry gray mold and other pathogens. The product has the advantages of short manufacturing period, high production efficiency and low cost, and is safe and convenient to use.

The invention discloses a manufacturing method of active humic acid controlled-release fertilizer, comprising the following steps: taking weathered coal or lignite as raw materials; adopting the production equipment of compound fertilizer; taking sodium hydroxide and urea as an activator; in an activating reaction jar, activating and converting humic acid in the weathered coal or lignite by fusedurea liquid and sodium hydroxide to form the urea liquid containing the active humic acid; producing by combing with the compound fertilizer; injecting the urea liquid containing the active humic acid onto the compound fertilizer material in a granulation barrel to round and granulate; and drying, and screening to obtain the black, light and round humic acid controlled-release fertilizer product of different content proportions. In the manufacture scheme, the humic acid urea activating liquid has the following raw materials at the ratio of urea to humic acid to potassium chloride to water tosodium hydroxide of 100:100:(15-200):(5-15):(7-12), and other solid granulation raw materials (comprising urea, monoammonium phosphate, potassium chloride, ammonium sulphate, bentonite and the like) are designed according to nutrient content proportions of different fertilizers. In the manufacture method, humic acid activation and compound fertilizer production are organically combined and are carried out simultaneously, and thus the manufacture method has the characteristics of simple operation process, low cost, large production capability, black, light and round product particle, efficient controlled release of the nutrient, high utilization ratio, wide market prospect and the like, can greatly improve the yield and the quality of crop and improves fertilization soil.

The invention discloses a saline-alkali soil improving agent, and a preparation method thereof. The preparation method comprises following steps: fermented plant fiber and fermented animal excreta are uniformly mixed and grinded so as to obtain a mixture of 80 to 100 meshes; wood vinegar and water are added, uniform mixing is carried out, and an obtained mixed material is subjected to pelletizing and drying until water content ranges from 3 to 8%, wherein the adding amount of water accounts for 5 to 30% of the total weight amount of the mixture; an obtained product is sieved so as to obtain a granular mixture with a particle size ranging from 3 to 5mm; the granular mixture is subjected to drying and cooling, and a microorganism agent is sprayed onto the surface of the granular mixture; and an obtained semifinished product is uniformly mixed with a mixture A and a mixture B so as to obtain a finished product, wherein the mixture A is obtained via uniform mixing and grinding of ground phosphate rock, vermiculite, medical stone, sodium alginate, and polyacrylamide to 120 to 200 meshes, and the mixture B is obtained via uniform mixing and grinding of humic acid and furfural residue to 80 to 100 meshes. The saline-alkali soil improving agent is capable of reducing soil alkalinity, activating soil, reducing salinity and alkalinity effectively, improving saline-alkali soil structure, improving soil fertilizer conservation and water-holding capacity, improving saline-alkali soil physical and chemical properties, and realizing positive cycling of saline-alkali soil.

The invention relates to a greening matrix containing quarry mucks, animal manures, straws and charcoal powder and a preparation method of the greening matrix. The greening matrix comprises the following components including quarry mucks, animal manures, straws and charcoal powder. By using the greening matrix provided by the invention, vegetation is greened again, so that soil erosion resistibility and water and soil loss interception ability are increased, land and water resources can be protected, environment can be beautified, water and soil loss caused by stacking waste slag is reduced, biological environment of mines is improved, and cyclic utilization of land sources is realized.

The invention relates to the greenhouse crop planting field, in particular to compound microbes for reducing and disinfecting greenhouse soil and a soil disinfection method, and solves the problem of multiple defects in the prior art. The compound microbes comprise bacteria, actinomycetes, saccharomycetes and moulds. The soil disinfection method includes the steps of selecting June to September as a disinfection period to apply crop straws, organic fertilizer and the compound microbes on the soil after the crops are harvested; deeply plowing soil layers to form small ridges; covering ridge surfaces with plastic film, filling enough water under the film till the soil humidity achieves 100%, and sealing the mulching film and covering the greenhouse plastic film for 20 to 25 days; and uncovering the greenhouse plastic film and removing the mulching film for planting. According to the compound microbes for reducing and disinfecting greenhouse soil and the soil disinfection method, the method is non-toxic, harmless, pollution-free and residue-free, pathogenic bacteria, ova and the like in soil plough layers are killed, soil organics are increased, the soil physical and chemical structure is improved, soil fertility is improved, and good foundation is laid for improving product qualities.

The invention discloses a composite soil passivator for reducing contents of cadmium and lead as well as a preparation method and an application method of the composite soil passivator. The composite soil passivator comprises the following components in percentage by weight: 5-15wt% of composted chicken manure, 5-15wt% of composted mixture of rice chaff and husk, 5-15wt% of turf, 10-20wt% of silicon-calcium-magnesium-potassium fertilizer, 5-15wt% of talcum powder, 25-35wt% of sepiolite, 10-20wt% of stacking fermented sugarcane filter mud and 1.5-2.5wt% of microbial fermentation liquor. The composite soil passivator can be widely applied to the mild and moderate cadmium / lead polluted rice fields to ensure that active cadmium and lead of the soil in the heavy metal polluted rice fields are respectively reduced by 51.5-51.6% and 52.6-58.8%, the cadmium and lead contents of the polished rice are respectively reduced by 48.8-51.6% and 52.7-56.0% and the pH value of the soil is improved by 0.97-1.04; and the composite soil passivator has the functions of restoring the acidized soil, improving the soil fertility and improving the physicochemical property of soil and has huge popularization and application values.

The invention relates to a microbe germ composition, a cyanophyte biological germ leaven which contains the microbe germ, a cyanophyte fermentation nutrient, a cyanophyte biological organic fertilizer and a method for preparation, wherein the microbe germ composition contains plant lactobacillus, bacillus subtilis and swamp Rhodopseudomonas, the cyanophyte biological germ leaven is prepared by microbe germ composition and base, the cyanophyte fermentation nutrient is prepared by cyanophyte biological germ leaven and cyanophyte, the cyanophyte biological organic fertilizer is prepared by cyanophyte fermentation nutrient, organics base and water-loss reducer. The microbe germ composition is provided with the ability for fermenting solid cyanophyte, which can transform nutriment in the cyanophyte into the material for crops. The cyanophyte fermentation nutrient can be superior animal feed. The cyanophyte biological organic fertilizer is provided with crop pest control effect, which adds the soil organics content and improves nutrient utility to accelerate the plant growth belonging to natural superior organics fertilizer.

The invention relates to a device and a method for improving a saline land, wherein, the device comprises an isolation layer arranged on the partial periphery of an afforestation-waiting area, and a main blind drain and an auxiliary blind drain used for draining salt and alkali and arranged above the critical water level in the afforestation-waiting area, and the water outlets of the main blind drain and the auxiliary blind drain lead to a water-collecting well, the level surface of which is lower than the blind drains. The method comprises the flowing steps: arranging the isolation layer, laying the blind drains, constructing the water-collecting well, and improving physical and chemical soil properties. The invention has the advantages that the invention can fully use various solid wastes as main materials available to improve the saline land and conduct the improvement on the saline land through the combination of physical, chemical, biological methods; the various solid wastes can be used for constructing the main blind drain, the auxiliary blind drain and the water collecting well, and controlling the water table; a tree microarea is planted, physical and chemical soil properties on a surface layer are improved, and the salt content of the soil is reduced; and indigenous plants and new plant species with the saline-alkali resistance are selected for being planted, and the forestry afforestation and the landscaping are achieved through the post-stage nursing, long-term salinity control and alkaline control measures.