109results about How to "Alleviate salinization" patented technology

The invention discloses a multi-functional salinization soil improved material and a preparation method thereof. The material is composed of natural organic materials, water-soluble functional polymers, inorganic fertilizers, calcium bentonite, organic acid, phosphoric acid, sulphur and micro elements. The material has the advantages of reducing soil salination or restraining the migration of harmful ions through the optimization and synergistic effect of various kinds of materials, fertilizing soil, improving the soil crumble structure, strengthening soil permeability, and increasing soil water conservation functions. The material has the advantages of low cost, lasting effect and no environmental pollution.

The invention discloses a dyeing treatment process for pure cotton fabrics based on pure natural biological preparations, which is designed for solving the technical problems that the environment is seriously harmed in an existing pure cotton fabric dyeing treatment process, and the human health is harmed in an application process. The adopted technical scheme is as follows: the dyeing treatment process comprises the steps of singeing, desizing, boiling-out, bleaching, dyeing, softening treatment and preshrinking treatment, and the key point is that biological preparations, which are respectively a desizing enzyme solution, a boiling-out enzyme solution, glucose oxidase solution and a plant dye, are respectively adopted in the steps of desizing, boiling-out, bleaching and dyeing. The dyeing treatment process has the technical effects that the operation is simple; the pure natural biological preparations almost do not contain any toxic substance, and wastewater produced in the treatment process is less and biodegradable, so that under the premise of keeping the characteristics such as softness, sweat absorption, comfortableness and naturalness and the like of pure cotton fabrics, the harm to the environment is alleviated, and the harm to human body is avoided, and therefore, the process has a zero-pollution environmental friendliness characteristic.

The invention discloses a fertilizer special for vegetables and a preparation method thereof. The fertilizer comprises the following raw materials in parts by weight: 60-80 parts of straws, 30-45 parts of animal wastes, 4-15 parts of powdered rock phosphate, 8-20 parts of potassium mineral powder, 1.5-3.5 parts of saccharides, 0.4-0.7 part of EM bacterium liquid, 5-9 parts of modified vermiculite power, 1-4 parts of bentonite, 1-4 parts of diatomite, 0.2-0.8 part of a plant growth regulator, 10-16 parts of traditional Chinese medicine dregs and 0.05-0.12 part of an enzymic preparation. According to the fertilizer special for vegetables and the preparation method thereof provided by the invention, the formula is reasonable, the occurrence rate of vegetable insect pests is reduced, and the stress resistance of the vegetables is improved. Meanwhile, the ecological environment of soil is improved, the soil fertility and sustainability are improved, the absorption of the vegetables on nutrients is comprehensive, the absorption efficiency is high, the quality of the vegetables is improved, and the yield of the vegetables is increased.

The invention relates to a process for preparing freezing resistance type deicing agent, which belongs to the deicing agent field, the technical proposal is that the process adopts the existing soluble salt deicing agent to prepare. The process for preparation comprises the following steps: firstly, adopting zeolite, bergmeal, meerschaum and other particles to load soluble salt deicing agent to prepare into saturated solution under the temperature which is 20-100 DEG C, secondly, adding inorganic non-metal porous material whose particle diameter is 10 order to 80 order into the saturated solution to immerse for 15min-45min, thirdly, filtering and drying the solution, and finally, drying inorganic non-metal porous material in 105 DEG C to 120 DEG C to be constant weight. In order to prepare freezing resistance type deicing agent which is suitable for different ice and snow weather, the step two and the step four are repeated, namely the whole process of immersing, leaching solution and drying for 1-10 times. The invention provides a deicing agent which can save energy and protect environment, which feasibly solves the shortcoming that deicing effect in the existing utilization mode is transient, the deicing agent can effectively accelerate the disintegration of ice layer, and can reduce the resistance force in the process of manually and mechanically breaking ice and removing snow.

The invention discloses a salt-resisting compound bacterium agent for disposing kitchen waste. The compound bacterium agent is composed of a compound thallus and a carrier auxiliary material, wherein the compound thallus comprises a basic treatment thallus; the basic treatment thallus is composed of bacillus subtilis, bacillus coagulans and saccharomyces cerevisiae; bacillus subtilis in the basic treatment thallus accounts for 30%-65% of a total viable count; bacillus coagulans thallus accounts for 20%-65% of the total viable count; and saccharomyces cerevisiae accounts for 5%-50% of the total viable count. The compound bacterium agent disclosed by the invention is suitable for a kitchen waste disposer with heat-insulation, air-exchanging and agitating functions; and a stable micro-ecology is formed by microorganisms in the bacterium agent and the compound bacterium agent can resist high salt, so that residues obtained by disposing the kitchen waste can be used as the bacterium agent to continually dispose the kitchen waste for the next time, and the compound bacterium agent can be used for a long period when being added at a time.

The invention discloses a saline-alkali soil modified microbial inoculum and a preparation method thereof. The microbial inoculum comprises, by weight, 10-30 parts of bacillus megatherium HB bacteriapowder, 35-65 parts of phosphorus tailings powder, 12-18 parts of phosphogypsum, 8-25 parts of sugar refinery wastes, 6-26 parts of seaweed residue and 1-8 parts of mannitol. Components of the saline-alkali soil modified microbial inoculum have synergistic interactions with each other to enhance effects, if any one of the components lacks, expected effects cannot be reached, and only when the saline-alkali soil modified microbial inoculum with whole formulas is adopted and 30-80 kg of the microbial inoculum is used per mu, can the effects of increasing fertilizer utilization rate and crop yields, and improving quality and saline-alkali lands be achieved.

The invention relates to a soil amendment, in particular to a facility vegetable land soil amendment using magnesite tailings and a preparation method thereof, which solve the problems of soil acidification, salinization and the like on the facility vegetable land. The soil amendment comprises the following materials in percentage by weight: 90-95% of magnesite powder, 2-5% of lime nitrogen and 2-5% of zeolite powder. The preparation method of the soil amendment comprises the following steps: grinding the magnesite tailings into magnesite powder sieved by a 40-meshed sieve; and mixing the magnesite powder with powdery or granular lime nitrogen and the zeolite powder sieved by a 60-meshed sieve, and stirring fully until evenly blending, thus obtaining the soil amendment. The preparation method of the invention is simple and pollution-free, which can obviously improve the soil acidity and alkalinity environment of the facility vegetable land, and reduce exchangeable sodium saturation of the soil, and meanwhile has the effect of improving physical properties of the soil.

The harmless treating and resource utilizing process of waste salt-containing drilling slurry in oil field includes the following steps: replacement step for flocculating slurry with flocculent to destroy its colloid state, convert adsorbed salt ion free state in water solution and separate water from slurry; wsater washing and dewatering step for water washing slurry for 3-6 times before eliminating water solution to eliminate salt in slurry; desalting step combining reverse osmosis and climbing film evaporation to eliminate salt in water; salt recovering step to crystallize salt in concentrated salt solution with solar energy; and optional step to utilize desalted slurry in soil improvement.

The invention belongs to the field of crop planting, in particular to a high-efficiency corn cultivation method in saline-alkali land. The high-efficiency corn cultivation method in the saline-alkaliland includes the following specific cultivation steps: soil improvement, flat land preparation and application of base fertilizer, corn sowing and film covering, irrigation and fertilization. The method achieves the aim of improving corn emergence rate, seedling preservation rate, water and fertilizer utilization efficiency and further improving corn yield by improving the corn planting method and optimizing the irrigation and fertilization system, breaks through the technical bottleneck of difficult corn planting and improvement in saline-alkali land in low-lying areas, and can play a technical supporting role in efficient improvement and utilization of saline-alkali land and improvement of ecological environment. On the one hand, ridge film furrow planting can effectively reduce the evaporation and consumption of soil moisture, and thus water collection and moisture preservation are favorable, so that crop yield and water use efficiency are improved; on the other hand, the utilization of groundwater can be further promoted, the groundwater level is lowered, and the phenomenon of soil salinization is reduced.

The invention relates to bacillus mucilaginosus and application thereof for preparing a saline alkali soil improvement agent. The bacillus mucilaginosus JDzhs-bh is preserved at the China Center for Type Culture Collection on March 20th, 2019, the address is No.3, courtyard 1, the western Beichen road, Chaoyang district of Beijing, and the strain preservation number is CGMCC No.17376. The invention discloses bacillus mucilaginosus capable of resisting high temperature and saline alkali and being cultivated through ultraviolet mutation screening for the first time. The bacillus mucilaginosus has the stress resistance for high temperature and saline alkali, and can effectively adapt to saline alkali hardening soil. Meanwhile, the effect of degrading silicon and phosphorus is achieved, release of elements such as soluble silicon and phosphorus in soil is promoted, crop stress resistance is enhanced, the utilization rate of the soil repairing agent is achieved, saline alkali soil is repaired and improved, and salinization is lowered.

The invention belongs to the field of soil fertilizer, and discloses a powder organic-inorganic water-soluble fertilizer and a preparing method thereof. The powder organic-inorganic water-soluble fertilizer comprises water-soluble organic matter, microelement water-soluble fertilizer, medium element water-soluble fertilizer, and a water-soluble anti-blocking agent. The content of nitrogen, phosphorous and potassium is larger than or equal to 30%, the content of calcium and magnesium is larger than 1%, and the content of organic matter is larger than 10%. According to the powder organic-inorganic water-soluble fertilizer and the preparing method thereof, the preparing technology is simple, the condition is mild, heating and fermenting are not needed, particles do not need to be prepared into, the four materials are directly uniformly mixed to prepare the powder organic-inorganic water-soluble fertilizer, the powder organic-inorganic water-soluble fertilizer can promote the absorption and utilization of crop to nitrogen, potassium, calcium and magnesium, soil beneficial microorganism reproduction is promoted, soil acidization and salinization are relieved, the crop root system growth is promoted, the utilization efficiency of crops to the water and nutrients is improved, the capability of the crops in resisting adversity is improved, and finally the purposes of increasing the yield and improving the product quality are achieved. Long term application of the powder organic-inorganic water-soluble fertilizer can also improve the soil structure and raise land fertility.

The invention discloses a soil improvement agent. The soil improvement agent is prepared from the following raw materials in parts by weight: 10-20 parts of bentonite, 5-8 parts of zeolite powder, 13-18 parts of plant straws, 15-25 parts of bean pulp, 8-13 parts of waste tobacco leaf dottle, 10-20 parts of polyacrylamide, 2-3 parts of boric acid, 10-18 parts of humic acid, 4-7 parts of chitosan, 2-3 parts of potassium sulfate and 3-4 parts of a mixed strain. A preparation process of the soil improvement agent is simple, the raw materials are sufficient, and the soil improvement agent is low in cost, has a good improvement effect and is used for preventing and controlling soil acidification and salination, so that the problem that the sustainable utilization of soil is influenced by quality reduction of soil is solved.

The invention discloses a fast acidified soil ecological restoration agent for preventing and controlling successive cropping obstacles of melons and a restoration method, the fast acidified soil ecological restoration agent includes the following components by mass: 80-90 parts of silkworm excrement, 10-20 parts of bone meal and 0.1-0.3 part of a yeast agent, the yeast agent comprises Saccharomycopsis fibuligera. The ecological restoration method comprises the following steps: cleaning, spreading materials, preparing lands, ditching, irrigating, coating the surface of the soil layer with a film, keeping close at above 20 DEG for 10-15d, uncovering the film, turning the soil over for planting of the melons. The fast acidified soil ecological restoration agent aiming at the defects of prevention and control technologies in the prior art, from a technical point of view of ecological restoration of soil, soil acidification can be improved in a short period of time, salinization can be reduced, pathogenic microbes in the soil can be effectively killed, controlling successive cropping obstacles of the melons can be eliminated, the normal production of the melons can be ensured.

The present invention relates to the cultivation technical field of a cut flower, particularly to facilities for cultivation under cover and a cultivation method of the cut flower. The facilities for cultivation under cover of cut flower comprise wall bricks, a thermal insulating layer, a gravel layer, an organic material layer, a soil and / or substrate layer and a drip irrigation device. The facilities for cultivation under cover are characterized in that a flower pond is enclosed by the wall bricks; the thermal insulating layer is disposed on the inner wall of the flower pond; the sand layer gravel layer, the organic material layer, the soil and / or substrate layer and the thermal insulating layer are paved in the flower pond from the upside to the downside; and the drip irrigation device is mounted. The invention can effectively slow down the secondary salinization to the soil and substrate under cover, improve the permeability of the soil and the substrate, enhance the activity of the root system, increase the production of the cut flower, save water and fertilizer and lessen pollution to the surrounding environment.

The present invention discloses a composite microbial agent fermented organic and inorganic biological compound fertilizer, and belongs to the technical field of agricultural fertilizer. The compound fertilize is characterized by consisting of the following materials by weight: 50-55 parts of a semi-finished product, 35-40 parts of an inorganic nutrient, 8-12 parts of weathered coal, and a fermentation body accounting for 1.0-2.0% of the total weight of the above, wherein the biological composite enzyme accounts for 0.01-0.02% of the total weight of the semi-finished product. The present invention has the beneficial effects that microbial fermentation technology is utilized to convert organic materials and chemical fertilizers into organic ingredients, through bioconversion, so as to improve the utilization of fertilizers as well as make crops absorb the necessary nutrients faster and more timely. Chemical nutrients and composite microbial agents are added in a secondary fermentation process, the decreased temperature of the secondary fermentation and microbial fermentation are used to convert inorganic elements, in order not only to avoid the inorganic nutrient loss in high temperature fermentation but also improve the survival rate of microorganisms.

The invention discloses a crop trace element organic complex fertilizer and a preparation method thereof. The preparation method includes: adding urea, citric acid, ZnSO4, borax, ammonium molybdate, CuSO4, FeSO4, MnSO4 and vitamin into a reaction kettle in order for stirring, dissolving and mixing so as to conduct a complexing reaction, then adding element Ti, leaving the Ti and the remaining vitamin, urea and citric acid that do not participate in the complexing reaction to undergo a complexing reaction again, adding KOH, ammonia water and sodium dodecyl benzene sulfonate to conduct adjustment and stir them uniformly, thus obtaining a finished product. The preparation method provided in the invention has fewer technical residue and small raw material loss. The prepared trace element organic complex fertilizer is a slightly acidic buffer solution, and is prepared from trace elements and organic complexes, thus being more suitable for crop absorption. Meanwhile, the prepared trace element organic complex fertilizer also has the advantages of small application dose, comprehensive nutrition, no heavy metal pollution residual, crop quality improvement, and capability to control replant diseases and a plurality of crop diseases.

The invention relates to a treatment method of continuous cropping soil, and belongs to the technical field of soil improvement. Harmful bacteria in the continuous cropping soil are killed by high-temperature steam treatment, then struvite, mushroom spawn culture medium waste materials, sawdust, soybean root nodule and the like are used for fermentation, nutrients are activated in the growth process of soybean rhizobia, rhizobium fertilizer is prepared, and chemical elements of N and P accumulated in the soil are activated and balanced; then activated carbon in rice husks, silicon dioxide composite dolomite, fly ash and the like are used, so that the physical properties of the fertilizer are improved, the loss of fertilizer nutrients is reduced, the utilization rate of the fertilizer is improved, the buffering performance of the soil is enhanced, harmful elements in the soil are adsorbed, heavy metal pollution of the soil is treated, soil salinity and acidification are reduced, and soil continuous cropping obstacles are overcome.

The invention relates to an organic fertilizer capable of improving a plant rhizosphere soil micro-environment. A formula is composed of (but not limited to) the following three raw materials in percentage by mass: 55-70 percent of sugar residue separated by producing oligosaccharide through corncobs, 15-20 percent of metalloprotease and 10-30 percent of bacillus mucilaginosus. The formula is composed of (but not limited to) the following four raw materials in percentage by mass: 5-10 percent of superoxide dismutase, 60-75 percent of the sugar residue separated by producing the oligosaccharide through the corncobs, 10-20 percent of bacillus subtilis and 5-10 percent of the bacillus mucilaginosus. The formula is composed of (but not limited to) the following six raw materials in percentage by mass: 8-10 percent of the metalloprotease, 10-12 percent of poly-carbon enzyme, 10-15 percent of cellulase, 25-30 percent of the superoxide dismutase, 5-10 percent of the bacillus mucilaginosus and 30-35 percent of alginic acid. The organic fertilizer has the beneficial effects that the heavy metal pollution in the soil can be improved by virtue of the adopted raw materials and the activity of the raw materials, the soil salinization is reduced, and a microbial living environment is improved.

The invention discloses an intelligent precision irrigation control system which comprises a control pump house, a plurality of branch irrigation control valves, soil monitoring sensors and crop monitoring sensors. A master control module, a water pump, a master irrigation control valve, an irrigation pipeline, a nutrient solution tank and a nutrient solution control valve are arranged in the control pump house; a wireless group network is formed by the branch irrigation control valves, the soil monitoring sensors and the crop monitoring sensors via wireless ad-hoc network modules, and the master control module can access the wireless group network via a wireless module, so that monitoring information fed by the various sensors can be received by the master control module, and the branch irrigation control valves can be wirelessly controlled by the master control module according to the monitoring information. The intelligent precision irrigation control system has the advantages that the intelligent precision irrigation control system has functions of selecting different indexes according to different crop types to carry out comprehensive fuzzy irrigation decision making, field data can be acquired by the distributed control pump house controlled by bus, irrigation water sources and electromagnetic valves can be automatically controlled by the distributed control pump house, and multifunctional network type automatic irrigation and management can be implemented.

The invention relates to a maintenance-free lead-acid storage battery with excellent deep cycle life and a production method. Positive electrode lead paste of the maintenance-free lead-acid storage battery comprises the following components of 0.05-0.12% of short fibers, 0.05-0.3% of antimonous oxide additive, 0.4-1.5% of 4BS seeds, 8-14% of pure water, 8-12% of sulfuric acid solution and the balance of lead powder, the negative electrode lead paste consists of 0.2-0.4 % of carbon black, 0.05-0.1 % of short fiber, 0.1-0.3 % of lignin, 0.5-1.0 % of barium sulfate, 8-12 % of pure water, 7-12 % of sulfuric acid solution and the balance of lead powder. The method is advantaged in that the utilization rate of active substances of the battery is not sacrificed, through technical comprehensive application, the charging acceptance capability, the 90% SOC dynamic charging acceptance capability and the micro-hybrid MHT life of the battery are greatly improved, and the deep cycle life in a partial state of charge is improved by 30-50%.

The invention discloses a high-concentration liquid slow-release nitrogen fertilizer and a preparation method thereof. The liquid slow-release nitrogen fertilizer is composed of 40-80 parts of urea, 18-50 parts of formaldehyde, 1-15 parts of an alkali compound, 1-15 parts of an amine compound, 1-15 parts of ammonia water, 0.001-1 part of a medium trace element-containing substance and 0.01-5 partof a biostimulant. The preparation method comprises the following steps: sequentially adding the components into a reaction kettle, and carrying out a series of reactions to obtain the high-concentration liquid slow-release nitrogen fertilizer. The liquid slow-release nitrogen fertilizer contains medium trace element substances and biostimulant, and can promote root growth and chlorophyll synthesis and improve crop quality; the fertilizer is directly sprayed on plant leaf surfaces and has the characteristics of quick effect, medium effect and slow effect so that the effective utilization rateof the nitrogen fertilizer is improved to 50 percent; the fertilizer can be randomly mixed with water and pesticides and is directly sprayed to crops so that the problem of non-uniform spreading of the traditional solid fertilizer is solved, and nitrogen loss and volatilization are greatly reduced. The defect of insufficient nitrogen source supply in the early stage of urea-formaldehyde resin is overcome, and the problems of high consumption, short lasting time, high loss rate, environmental pollution and the like of traditional urea are solved.

The invention discloses a saline-alkali land improving and greening method, and belongs to the technical field of saline-alkali land improvement. The method comprises the following steps: arrangementof a salt drainage ditch: determining the depth, width and direction of the salt drainage ditch according to the depth of soil needing improvement and the depth of groundwater; burying of a salt drainage device: firstly, laying gravel in the salt drainage ditch, then laying a leakage net, laying a salt drainage pipe on the gravel and the leakage net, laying gravel on the leakage net after the saltdrainage pipe is wrapped by the leakage net, and then filling and leveling up the salt drainage ditch; deep ploughing: ploughing to the degree of finely broken soil, and allowing no obvious large soil to exist; field soaking: repeatedly storing water and soaking until no large number of salt crystals exist; improved soil replacement: laying good soil with 25 cm or more; salt and / or alkali tolerant plant planting; and straw returning to field: improving for a period of time, selecting crops and plants, intercropping, and returning crop straw to the field. The saline-alkali land improving and greening method disclosed by the invention can improve the saline-alkali land to be used for agricultural production.

The invention discloses a lead-acid storage battery and a preparation method thereof. The lead-acid storage battery comprises a positive plate and a negative plate. Coating of the negative plate of the lead-acid storage battery comprises, by weight, 1000 parts of lead powder, 1-20 parts of polyaspartic acid or poly-aspartate, 2-50 parts of silicon dioxide, 2-10 parts of barium sulfate, 4-20 parts of expanding agents, 80 parts of acid, 10 parts of mixed carbon and 106 parts of de-ionized water. By means of the lead-acid storage battery and the preparation method thereof, the battery failure due to the fact that the negative pole is sulfated is effectively delayed, negative pole hydrogen evolution caused by addition of a large amount of carbon is controlled, and the purposes that capacity of the lead-acid storage battery is improved, and the cycle life is prolonged are achieved. Moreover, carbon content of the negative pole of the storage battery is improved to a certain extent.

The invention belongs to the field of soil improvement and specifically relates to a saline-alkali land soil improvement agent and a preparation method thereof. The saline-alkali land soil improvementagent is obtained by mixing organic waste fermented materials, activated humic acid materials, chemical acidic fertilizer, ecological acidic fertilizer and starch uniformly. The organic waste fermented materials in the soil improvement agent contain various beneficial microorganisms and organic matters, can improve the physical structure of the soil and have the function of regulating and controlling a soil biota; gram-positive bacteria in the organic waste fermented materials can kill harmful bacteria, nematode in the soil and reduce soil-borne diseases; gangue, peat and lignite in the soilimprovement agent serve as associated mineral of coal production, contain a large amount of organic matters and rich trace elements, contain nutritional elements such as carbon, nitrogen, phosphorus and potassium necessary for crops, and achieves the effects of improving the physical and chemical properties and the biological properties of the soil, improving the soil fertility and increasing theyield of the crops in the soil improvement agent.

The invention relates to the technical field of agricultural environment conservation and restoration, in particular to a repairing agent for treating alkaline cadmium-contaminated soil and a preparation method thereof. The preparation method comprises the following steps: weighing blast furnace slag, sepiolite, bentonite and flue gas desulfurization gypsum in proportion, uniformly mixing, addingfulvic acid, and mixing to obtain the repairing agent. The preparation method of the invention has the following advantages: the raw materials are easily available; the operation is simple; the preparation cost of the repairing agent can be controlled within 800 yuan / ton, the dosage per acre is 100-300 kg, the cost of the repairing agent per acre is only 80-240 yuan, and the repairing agent can bewidely promoted and used at large scale. By the principle of multi-dimensional repairing, the activity of cadmium in soil can be reduced through sedimentation, adsorption and complexation, and the upward transfer of cadmium in crops can be inhibited through deposition on the endodermis and formation of -SH (sulfhydryl). The two-pronged approach makes it possible to effectively reduce the contentof cadmium in agricultural products.

The invention belongs to the field of an electrochemical energy storage material, and relates to a nano barium sulfate / carbon composite material and a preparation method and an application therefor. According to the nano barium sulfate / carbon composite material, the nano barium sulfate is distributed on the surface of the carbon material, and is in full contact with the surface of a lead plaster active material for providing a large amount of crystal nucleus for lead sulfate crystalline grain deposition; meanwhile, carbon combined with active locations of barium sulfate can transfer electrons, so that the conductivity in the reaction points is reinforced; and in addition, the preparation method for the nano barium sulfate / carbon composite material is simple in method, short in period, free of pollution, and high in advantages used in industrial production. A negative electrode material prepared by taking the nano barium sulfate / carbon composite material provided by the invention as one of the raw materials is excellent in the charge-discharge performance; the negative electrode sulfation phenomenon can be reduced; and the capacity retention ratio of the negative electrode material is still kept more than 90% after the negative electrode material is subjected to 2,000 charge-discharge circles at current of 1C for charge and at current of 0.3C for discharge, so that the advantage of high cost performance is achieved.

The invention discloses a capillary irrigator consisting of tightly stacked flat plates and a tube body. According to a physical phenomenon that water in a narrow slit is lifted under the action of capillary acting force. The narrow slit is formed by tightly stacking at least two smooth hard flat plate materials; a non-water-permeable material covers the periphery of the narrow slit, and only the upper end and the lower end of the narrow slit are not closed, so that a narrow slit channel is formed; the narrow slit channel is combined with a section of the tube body in a T-shaped manner; and one end of the narrow slit channel is arranged in the tube body, and the other end of the narrow slit channel is arranged outside the tube body, so that the capillary irrigator is formed. A function of locally irrigating water from the tube body buried in the soil to the soil of a main root active layer of a plant is realized; the root of the plant can be prevented from invading through the narrow slit; and under the action of the capillarity acting force, the capillary irrigator can be prevented from being blocked.

The invention discloses a method and device for applying straws with different fragmentation degrees and decomposition degrees into saline-alkali soil in a layered and ex-situ manner. The saline-alkali soil is divided into a plurality of soil layers, straws with different fragmentation degrees and decomposition degrees are applied to each soil layer, the decomposition degree of the straws applied to each soil layer is gradually reduced from top to bottom, and the fragmentation degree of the straws applied to each soil layer is gradually increased from top to bottom; the economic investment of the straws is small, and the effects of the straws in different forms are fully utilized to improve the soil texture of the saline-alkali soil and relieve further salinization of the saline-alkali soil; the device applied to the saline-alkali soil comprises a rack, a plurality of material storage boxes are installed at the upper end of the rack, and conveying mechanisms are installed at discharging openings in the bottoms of the material storage boxes; a plurality of subsoiling shovels which are in one-to-one correspondence with the conveying mechanisms are mounted on the rack from the front end to the tail end. By means of the device, the subsoiling shovels with different depths are arranged, the shovel tips of the different subsoiling shovels advance in the corresponding soil layers, the conveying mechanisms can convey straws with different fragmentation degrees and decomposition degrees in a storage box to the preset soil layers, and the straws can be applied to the four different soil layers at the same time.

The invention discloses a biological activity conditioning agent for improving greenhouse soil salinization. The conditioning agent is prepared from, by mass percentage, 10-20% of bio-charcoal, 0.5-1%of trichoderma viride agent, 0.5-1% of bacillus amyloliquefaciens agent and the balance of low-salt organic fertilizer. The biological activity conditioning agent has the advantages of obvious soil conditioning function on salinized greenhouse soil, capability of effectively reducing the salt content of the soil, increasing microbial activity and diversity of the soil, increasing the number of beneficial microorganisms of the soil and improving the soil fertility quality, and benefit to production and income increase.

The invention relates to the field of greenhouses, in particular to a top-opening type multifunctional ecological greenhouse. The top-opening type multifunctional ecological greenhouse comprises a supporting structure, a layering structure, a buffer, a sterilizing structure, four thin films, an anti-insect net, four electric film rolling structures, three door leaves, a guiding structure and a spraying dripping pipe system. The layering structure and the spraying dripping pipe system are arranged inside the supporting structure, through the layering structure, traction is conducted on vine-climbing vegetable crops to realize vine climbing, and the spraying dripping pipe system is used for conducting spraying irrigation on vegetables. The film rolling structures are used in cooperation withthe guiding structure, in this way, greenhouse films are easily, stably and rapidly rolled and unrolled, ventilating and light transmitting of the greenhouse are easy, and then the temperature insidethe greenhouse is effectively regulated and controlled; after the top of the greenhouse is opened, rainwater leaching is easy; soil salinization in the greenhouse is reduced, and bases are laid for healthy growth of crops; meanwhile, internal supports of the supporting structure of the greenhouse form a rhomboid, in this way, the greenhouse is more stable, the capacity of resistance to wind reaches 12 level or higher, and the capacity of resistance to snow reaches 30 cm.