68 results about "Corn stover" patented technology

This invention relates to a method for dense planting of grain and medicinal herbs in intercropping, specifically within the field of intercropping of crops and medicinal herbs. The development of modern agriculture through corn / Astragalus intercropping requires reducing water and fertilizer inputs while maintaining high yields. However, it faces challenges such as unscientific management and a lack of technical support for increasing yield and reducing emissions. The method described herein is implemented according to the following steps: Step 1: Pre-planting tillage; Step 2: Drip irrigation tape installation and sowing; Step 3: Irrigation and fertilization in the first year; Step 4: First corn harvest: Harvest the corn at its optimal harvest time in the planting year, and then shred the corn stalks to cover the Astragalus in the furrows; Step 5: Planting corn in the second year; Step 6: Irrigation and fertilization in the second year; Step 7: Harvesting the corn on the ridges and the Astragalus in the furrows in the second year, and shredding and returning the corn stalks to the field after the second harvest; Step 8: Tilling the furrows.

This invention relates to the field of fertilizer technology, specifically to an organic liquid fertilizer based on straw enzymatic hydrolysate and its preparation method. The method includes: pretreating corn straw with potassium hydroxide, followed by enzymatic hydrolysis with cellulase and xylanase to obtain the enzymatic supernatant; sequentially treating the supernatant with an ultrafiltration membrane with a molecular weight cutoff of 3000 Da and a nanofiltration membrane with a molecular weight cutoff of 500 Da to collect oligosaccharides with a molecular weight window of 500-3000 Da; partially stabilizing the reducing end of the oligosaccharides with sodium borohydride; pre-complexing with boric acid at pH 8.4-8.8; then sequentially adding relatively low molecular weight sodium polyglutamate, calcium chloride dihydrate aqueous solution, and ultra-high molecular weight sodium polyglutamate to construct a sequential complexation system; subsequently adding potassium nitrate and citric acid aqueous solution; and finally, after filtration at 5 μm and heat treatment at 70℃, obtaining the organic liquid fertilizer. This fertilizer has a high proportion of 500-3000 Da oligosaccharides and a low reducing sugar equivalent, inhibiting storage precipitation and browning, and improving the retention rate of extractable oligosaccharides in the soil.

This invention belongs to the field of textile engineering technology and relates to a method for improving the performance of regenerated lignocellulose fibers based on lignin degradation. Corn stalks are mixed with an ionic liquid and tyrosine, then heated to dissolve, obtaining a spinning solution. The spinning solution is then subjected to wet spinning, and the spun fibers are solidified in a coagulation bath to obtain regenerated fibers. Compared with existing technologies, this invention uses corn stalks as the spinning raw material, which is widely available and inexpensive. Furthermore, this invention can achieve complete dissolution of the stalks and effectively remove lignin, reducing the lignin content in the regenerated fibers and improving their performance.

This invention belongs to the field of feed preparation technology, specifically disclosing a feed composition suitable for Aohan donkeys and its application in fattening. The feed composition comprises the following raw materials in parts by weight: 25-35 parts of compound fermented product, 0.5-2 parts of camellia extract, 30-40 parts of corn stalks, and 5-10 parts of cottonseed meal. This invention discloses a feed composition suitable for Aohan donkeys and its application in fattening. This feed composition can increase the body weight and average daily weight gain of Aohan donkeys, reduce intestinal permeability indicators, improve intestinal barrier function, promote the growth and development of Aohan donkeys, and improve the meat quality of Aohan donkeys.

The application discloses an inert filler composition, a composite carrier material and application thereof, and belongs to the technical field of pre-sowing treatment of rapeseed. The inert filler composition comprises corn stalks, bamboo green stalks, diatomite and bentonite, and the mass ratio of the corn stalks, the bamboo green stalks, the diatomite and the bentonite is (5-15):(5-15):(10-12):(2-3). The application further discloses a composite carrier material which comprises the inert filler composition and a binder. In addition, the application further discloses application of the composite carrier material in treatment of plant seeds. The inert filler composition is used for treating rapeseed, so that the drought and waterlogging stress resistance of the rapeseed is improved.

The present application relates to a kind of preparation lyocell fiber with corn stalk as raw material method, comprising:1) organic solvent pretreatment: corn stalk particles are placed in the mixed solvent of ethanol and water and are handled to obtain pretreated particles;2) alkali oxygen synergistic treatment: pretreated particles are added to the mixed solution containing sodium hydroxide and hydrogen peroxide to obtain alkali oxygen treated material;3) high temperature hot water treatment to obtain corn stalk cellulose;4) washing and drying to obtain corn stalk cellulose pulp;5) pulp swelling to obtain swollen material;6) vacuum heating dissolution: reduced pressure distillation concentration, to obtain spinning dope;7) spinning coagulation and post-processing.The quality of corn stalk cellulose pulp obtained by the method is good, the prepared lyocell fiber has excellent mechanical properties, and has the advantages of high softness, good dyeing degree, high hygroscopicity, etc.;The process is green and environmentally friendly, and meets the requirements of clean production;Realize the high-value conversion of agricultural waste corn stalk, and have good economic and social benefits.

The application discloses a corn straw modified titanium dioxide photocatalyst, a preparation method and application thereof. The preparation method comprises the following steps: (1) crushing corn straw, calcining the crushed corn straw, and obtaining calcined corn straw; (2) mixing the calcined corn straw, ethanol and water to obtain a mixed solution A; mixing tetrabutyl titanate, glacial acetic acid and ethanol to obtain a mixed solution B; adding the mixed solution A into the mixed solution B to react, and then standing to obtain a gel; wherein the mass ratio of the corn straw to the tetrabutyl titanate is 0.05-0.15:100; wherein the mass of the tetrabutyl titanate is calculated based on the mass of completely formed titanium dioxide; (3) drying the gel to obtain a dry gel; and calcining the dry gel to obtain the corn straw modified titanium dioxide photocatalyst. The modified titanium dioxide photocatalyst can be used for degrading organic dye sewage, and can effectively degrade methyl violet in particular.

This invention proposes a winter wheat cultivation method to enhance lodging resistance. Step one involves selecting high-quality varieties with high single-plant productivity, strong resistance, high economic efficiency, and no premature aging; choosing flat, sunny plots that are not prone to waterlogging, have fertile soil, good aeration, and convenient irrigation and drainage; deep plowing and fine cultivation, applying base fertilizer per acre, spreading it evenly on the ground, and immediately tilling to a depth of 20-25 cm. This planting method, through scientific and reasonable seed selection and field management, results in high wheat emergence rate, low growth, robust straw, good lodging resistance, and high ear formation rate, effectively improving wheat yield and quality. By setting up anti-lodging anchors and applying fertilizer during the jointing and grain-filling stages, and introducing prepared corn straw fermentation products, the bending strength of wheat stems is enhanced. By significantly increasing the bending strength of wheat stems, the wheat straw's ability to withstand wind and ear pressure is improved.

The application discloses a biomass gasification composite additive of red mud and coal ash, a preparation method and application thereof, and relates to the technical field of biomass gasification and industrial solid waste resource utilization. The raw material of the biomass gasification composite additive comprises a mineral component, the mineral component adopts high-iron red mud and / or high-aluminum coal ash, the oxides in the high-iron red mud include Fe2O3, Al2O3, SiO2 and CaO, and the mass fraction of Fe2O3 is 60-80%; the oxides in the high-aluminum coal ash include SiO2 and Al2O3, and the total mass fraction of SiO2 and Al2O3 is 80-95%; the high-iron red mud is mixed with the high-aluminum coal ash in a set ratio after drying treatment, and is sent into a gasification furnace gasification area together with corn stalks through a conveying device. The application not only effectively improves the ash melting characteristics in the biomass gasification process, but also realizes the resource utilization of the red mud and industrial solid wastes such as coal ash, and has good engineering application value.

The application aims to provide a preparation method of a double-effect glycerol-mediated CMC / PVA composite preservative film based on corn stalk cellulose and application thereof, and belongs to the field of preservative films. The method comprises the following steps: converting corn stalk cellulose into water-soluble carboxymethyl cellulose (CMC) through carboxymethylation modification; weighing CMC and PVA; preparing CMC solution and PVA solution with deionized water as a solvent and mixing the two solutions to obtain a CMC / PVA mixed solution; adding glycerol to the mixed solution; magnetically stirring the solution at room temperature for 40 min to form a uniform and stable film-forming solution; pouring the film-forming solution into a clean and dry mold, uniformly spreading the solution, and then placing the mold into a 45 DEG C oven for constant temperature drying; taking out the mold after the solvent is completely volatilized; and peeling off the CMC / PVA composite preservative film. The composite preservative film has better comprehensive performance in mechanical protection, gas barrier, anti-fogging transparency and other aspects, and can meet the microenvironment regulation requirements of fruit preservation. The functional packaging film is prepared from agricultural waste corn stalks, and the biomass resources can be used for high-value utilization.

The application discloses a corn straw-based Fe-N X The application discloses a C carbon material, a preparation method thereof and application of the C carbon material as a negative electrode material of a sodium ion battery, and belongs to the technical field of sodium ion battery materials. The preparation method comprises the following steps: S1, corn straw is calcined I in a non-active atmosphere to obtain a porous carbon material; S2, the porous carbon material is added into a solution containing an iron source and alcohol, stirring and drying are performed, and the dried product is mixed with a nitrogen source and then ground to obtain a porous carbon powder; and S3, the porous carbon powder is calcined II in a non-active atmosphere to obtain the corn straw-based Fe-N X C carbon material. By doping with iron and nitrogen, on one hand, the iron element catalyzes unordered carbon lines to become graphite carbon, and on the other hand, iron-nitrogen bonds are formed to provide active sites, so that the hard carbon composed of the iron-nitrogen bonds improves the electrical conductivity of the material and greatly improves the electrochemical performance of the material as the negative electrode material of the sodium ion battery.

The utility model relates to the technical field of picking instrument, provide a device for the storage and transportation of biomass gasification corn straw, including stock bin, four screw feeder, blanking tube, baffle door, material plug screw feeder and unpowered pipe, the stock bin is installed on the furnace front steel frame, the material conveying belt is set up above the stock bin, four screw feeder is connected below the stock bin through four screw feeder feed inlet, blanking tube is set below four screw feeder, material plug screw feeder is installed below blanking tube, baffle door is set between blanking tube and material plug screw feeder, material plug screw feeder discharge gate is connected with unpowered pipe, unpowered pipe is connected with furnace, avoid raw material feed inlet air suction.

The application discloses a kind of mudstone solid waste improved roadbed fillings applying straw fiber, including the following raw materials: mudstone mixed soil, corn straw, pure water and hydrophobic agent;By mass fraction, the mudstone mixed soil 92~97 parts, the corn straw 3~8 parts, the pure water 15~20 parts, the hydrophobic agent 20~25 parts.The application further discloses a kind of preparation method of mudstone solid waste improved roadbed fillings applying straw fiber.The application solves the problem of poor stability, low engineering application value of building solid waste resource utilization of mudstone mixed soil, effectively alleviates the phenomenon of water accumulation in cold region roadbed, significantly improves the ability of mudstone mixed soil roadbed to resist freeze-thaw cycle effect.

The present application belongs to the technical field of contaminated soil remediation, and relates to an ecological activation remediation material for heavy metal contaminated soil and a preparation method thereof, comprising: obtaining biochar by anaerobic pyrolysis, crushing and sieving of corn stalks; obtaining modified biochar wet material by dispersing the biochar in a modified solution, mixing, stirring and heating; obtaining a bacterial suspension by inoculating Burkholderia into LB liquid medium, oscillation culture, centrifugation and resuspending the bacterial body with a protective agent solution; obtaining a spore suspension by inoculating Phanerochaete chrysosporium into a potato glucose agar plate and static culture; obtaining a mixed suspension by mixing the modified biochar wet material, the bacterial suspension and the spore suspension with a sodium alginate solution, and obtaining gel microspheres by dropping the mixed suspension into a calcium chloride solution and taking out and drying. The ecological activation remediation material prepared by the present application can efficiently fix heavy metals, enhance the survival time and long-acting effect of microorganisms in the soil, and promote the recovery of the ecological function of the soil.

The application discloses a method for improving purity and yield of lactic acid in large-scale fermentation, and belongs to the technical field of lactic acid purification, and comprises the following steps: S1. alkali flocculation is performed on lactic acid fermentation liquor, and then filtration is performed; sulfuric acid is added into the obtained liquid phase, pH is adjusted to 1-2, and then re-filtration and rotary evaporation concentration are performed to obtain acidolysis concentrated liquor; S2. the acidolysis concentrated liquor is subjected to decolorization by using granular activated carbon to obtain lactic acid clear liquid; and S3. the lactic acid clear liquid is subjected to continuous ion exchange and concentration dehydration to obtain finished lactic acid. The application is suitable for a second-generation lactic acid fermentation system taking corn stalks, corn cobs and other lignocelluloses as raw materials, can solve the problems of large difficulty in impurity removal and low yield in large-scale production, effectively improves the purity and yield of lactic acid, and provides strong technical support for large-scale industrial production and high added-value application of lactic acid.

The utility model provides a kind of corn straw shaping packer, belong to corn straw packing technical field.This kind of corn straw shaping packer includes material box and discharge packing mechanism, the right side of the bottom of material box front side is equipped with controller, the left side of the bottom of material box front side is equipped with discharge pipe, packing ring is movably connected in the outside of discharge pipe, the right side of packing ring front side bottom is fixedly connected with packing shaft, packing frame is movably connected in the left side of packing ring front side bottom, the outside of packing shaft is equipped with packing roller, packing support mechanism is fixedly connected in the outside of discharge pipe, by setting discharge packing mechanism, it can form the medium that corn straw is wound and packed, so that staff packs corn straw discharged by discharge pipe, avoid the staff setting packaging bag when discharge pipe works, lead to the situation that discharge pipe packing operation is inconvenient, thus improve the packing operation convenience of material box and discharge pipe.

This invention relates to the field of agricultural data analysis, and particularly to a method for synergistically improving soil fertility and productivity through full coverage of corn straw. The method includes: acquiring a synchronous multidimensional time-series data set of the full corn straw cover layer and the underlying soil; performing cross-interface hydrothermal inversion transport resistance analysis to obtain a retardation attenuation coefficient; performing pore evolution discrete phase space curvature analysis on the volumetric water content sequence of the straw cover layer to obtain a curvature compensation factor; obtaining the actual decomposition driving dependent variable by fusing and reconstructing the original soil hydrothermal comprehensive driving dependent variable, the retardation attenuation coefficient, and the curvature compensation factor; and obtaining fertilization decision instructions by calculating the cumulative decomposition process and assessing the fertilizer demand gap based on the actual decomposition driving dependent variable. This solves the problem that existing straw decomposition process prediction algorithms cannot accurately characterize the interfacial hydrothermal inversion and internal water-locking inertia between the cover layer and the underlying soil, leading to misalignment of fertilization decision nodes and dosages.

This invention relates to the field of agricultural microbial fertilizer technology, specifically to a method for preparing and applying a microbial fertilizer for corn cultivation. The microbial fertilizer uses *Bacillus amyloliquefaciens* (BAM). Bacillus amyloliquefaciens B2 is the core functional microorganism, and its fermentation broth is inoculated into a fermentation system containing animal manure, straw powder, modified biochar, and urea for composting fermentation. The modified biochar is obtained by modifying corn straw biochar with magnesium chloride hexahydrate, attapulgite, dicyandiamide, Gly-Pro, and a combination of ferulic acid and tannic acid. This microbial fertilizer can improve the activity of microorganisms and nutrient conversion efficiency during corn cultivation, promoting plant growth. It can also improve the activity of microorganisms and nutrient conversion efficiency in the soil, improve the rhizosphere microecological environment, promote the absorption and utilization of nutrients by corn, thereby promoting plant growth, increasing biomass accumulation, reducing the amount of chemical fertilizer used, and improving the soil ecological environment.

The application discloses an epoxy resin-based corn straw composite board and a preparation method thereof, and belongs to the technical field of biomass materials and composite materials. The method comprises the following steps: crushing corn straw, and screening to obtain corn straw powder with a fiber length; mixing the corn straw powder and epoxy resin powder according to a mass ratio to obtain mixed raw materials; and placing the mixed raw materials under a preset temperature and pressure, and performing heat preservation and pressure preservation treatment for at least 2 hours, and then demolding to obtain the epoxy resin-based corn straw composite board. The hydrogen bond network formed by cellulose, hemicellulose and lignin in the corn straw under high temperature and high pressure and the bonding effect of the epoxy resin form a synergistic reinforcing effect, without the need for complex pretreatment such as separation of the corn straw skin and pulp, enzyme etching or nano-cellulose impregnation, the whole preparation process does not add formaldehyde-containing adhesives, no formaldehyde and other organic volatile substances are released, and the specific process is simple, the mechanical properties are excellent, and the process is green and environmentally-friendly.

The application belongs to the technical field of biomass resource utilization, and discloses a corn straw biochar preparation method and system based on pyrolysis temperature regulation, which comprises the following steps: drying, crushing and sieving corn straw, placing the corn straw in a pyrolysis reactor, discharging air by introducing inert gas, heating to the pyrolysis temperature at a set heating rate and keeping constant temperature, and finally cooling and collecting the solid product. By precisely controlling the pyrolysis temperature, the method realizes the synergistic regulation of the pore structure, fixed carbon content, volatile matter and potassium occurrence form of the corn straw biochar. Compared with the prior art, the method does not need to add chemical modifiers, and the process conditions are mild and controllable, effectively solving the problems of strong hydrophilicity, high viscosity and poor fluidity of traditional biochar used in coal water slurry system, and improving the stability and conveying performance of the biochar-coal powder multi-component slurry.

The application provides a method for increasing carbon and yield and reducing greenhouse gas emission of farmland by returning straw to field and application thereof, and belongs to the technical field of returning straw to field. The method comprises the following steps: treating corn straw by using biogas slurry obtained by anaerobic fermentation of cow dung and corn straw, mixing the treated corn straw with EM microbial agent to carry out composting fermentation, and returning the fermented corn straw to field. The treatment and returning method of the corn straw can effectively seal the carbon source in the soil in the form of organic carbon, improve soil fertilizer, avoid emission of the carbon source in the form of greenhouse gas to the environment, and cause pollution to the environment, thereby achieving the technical effect of carbon sealing and fertilizer increasing, providing technical support for returning straw to field, and being helpful to the development of green agriculture.

The utility model belongs to the technical field of agricultural equipment, concretely relates to a corn harvester dust collector. Install at the feed inlet of corn harvester, include: main cover, form with cutting chamber, install the main cover one side, have with the discharge channel of cutting chamber intercommunication with cutting chamber, and cutter, install in cutting chamber, install drive motor on the main cover, this drive motor combines with cutter, drive motor drives the rotation of cutter to make cutting chamber form negative pressure area to inhaled corn straw from discharge channel to cutting chamber. The utility model drives the cutter inside cutting chamber to rotate through the drive motor and makes the cutting chamber form negative pressure, inhaled corn straw and the impurity carried in it into cutting chamber, and the cutter can cut the impurity, so that the impurity is cut to form the debris and is pushed out from the discharge channel due to centrifugal force etc. to realize the separation of impurity.

This invention discloses a method for efficient utilization of straw resources and enhancement of soil carbon pool in grain-mushroom intercropping, comprising the following steps: preparing a layered substrate, the layered substrate comprising 40-45 parts by weight of wheat straw, 35-40 parts by weight of corn straw, 5-8 parts by weight of rice bran, 1-2 parts by weight of gypsum, and 0.5-1 parts by weight of calcium carbonate; subjecting the layered substrate to hydrothermal treatment at 65-70℃ for 90±5 minutes, and then cooling it to 25±2℃; inoculating the cooled substrate with Trichoderma harzianum strain T-22 at an inoculation amount of 10% of the substrate weight. 6 The concentration of CFU / g was measured and cultured at 25±2℃ and 75-85% relative humidity for 24-36 hours. A sequential inoculation system was used, first inoculating oyster mushrooms at 3% of the substrate weight, then inoculating shiitake mushrooms at 2.5% of the substrate weight after 7 days, and finally inoculating king oyster mushrooms at 2% of the substrate weight after another 7 days.

This invention discloses a biodegradable copper-clad laminate (CCL) preparation technology, belonging to the field of electronic materials technology. The CCL uses agricultural waste corn stalks and starch as a matrix, compounded with gum arabic, vanillin, and a silane coupling agent. Through in-situ construction of a dynamic imine bond and a dynamic siloxane bond dual-dynamic cross-linking structure, it achieves efficient biodegradation under mild conditions while ensuring the substrate's mechanical strength, toughness, and water resistance. The raw materials are in the following weight proportions: corn stalks 45-68 parts, starch 30-45 parts, gum arabic 15-30 parts, vanillin 5-13 parts, and silane coupling agent 20-30 parts. The preparation method involves mixing and stirring the raw materials into a viscous system, placing it in a mold, and laying copper foil on both sides, followed by hot pressing at 140℃. This invention uses readily available raw materials, has a simple process, and is low in cost. It achieves an 86% biodegradability rate after 45 days of burial, making it suitable for green biodegradable electronic devices and solving the problems of difficult degradation and low utilization rate of agricultural waste in traditional petroleum-based CCLs.

The application relates to the technical field of organic fertilizer processing methods, in particular to an organic fertilizer processing system and method.The purpose of the application is achieved through the following technical scheme: an organic fertilizer processing method, which comprises the following steps: step one: collecting organic fertilizer; step two: crushing and mixing the organic fertilizer and carbon-containing raw materials; step three: carrying out aerobic composting fermentation treatment on the organic fertilizer; step four: adding the fermented organic fertilizer into a processing device to process the organic fertilizer into columnar particles; and step five: carrying out packaging treatment on the columnar organic fertilizer particles to complete the processing of the organic fertilizer.Further, in the step two, the carbon-containing raw materials are dry tree leaves, wood chips, rice straw and corn stalks, and the beneficial effect is that the organic fertilizer can be processed into columnar particles, so that the use and transportation of the organic fertilizer are facilitated.

The application discloses a straw smashing device for agricultural mechanical processing and relates to the technical field of straw processing. The device comprises a rack, a smashing mechanism and a turning mechanism. One side of the top of the rack is provided with a mounting frame, and the other side of the top of the rack is provided with a turning box in communication with the mounting frame. The turning box is provided with heating wires electrically connected with a controller. The smashing mechanism is arranged on the rack and the mounting frame, and the turning mechanism is arranged in the turning box. The two smashing rollers of the smashing mechanism are used for smashing corn straws, and the heating wires in the turning box are used for drying the corn straws. While drying, the turning plate rotates, the cutter on the turning plate is used for chopping the corn straws, the sliding block moves on the guide rod under the action of gravity, the two grinding plates of the grinding assembly are opened and closed, the corn straws are crushed by the crushing teeth on the grinding plates, the corn straws adhered together are crushed, and the quality of the smashed corn straws is improved.

The invention discloses a corn straw furrow burying combined land preparation machine and a land preparation method thereof, and relates to the technical field of straw returning, the corn straw furrow burying combined land preparation machine comprises a furrow returning device, a rotary tillage device, a soil guiding device, a ploughing forming device and a pressing device; after corn is harvested, the machine is used for completing straw furrowing, rotary tillage of a ridge part, straw covering through rotary tillage, ploughing of the ridge part, straw covering through soil turning, new ridge forming and crushed soil pressing at a time, and the next-year to-be-sown state is achieved. According to the straw furrow-burying combined land preparation machine, corn straw furrow returning and soil covering and simplified plowing and land preparation are achieved, plowing and land preparation power is reduced by 50% or above, the soil fertility level is stably improved, the physical and chemical properties of soil are improved, the corn yield is increased, and agricultural sustainable development is guaranteed.

This invention discloses a soilless hydroseeding substrate and its application. The soilless hydroseeding substrate is composed of either Scheme A or Scheme B, or the substrate comprises two separately packaged components, namely Scheme A and Scheme B. Scheme A consists of the following components and their mass percentages: 5-10 parts decomposed corn stalks, 5-10 parts decomposed sugarcane bagasse, 3-6 parts rice husk charcoal, 20-30 parts crushed stone, 0.5-1 part binder, and 0.1-0.5 parts water-retaining agent. Scheme B consists of Scheme A with the addition of 2-3 parts seeds. The crushed stone has a particle size of 1-5 mm. This invention can solve the problems of poor soil quality and water and fertilizer retention capacity in rocky desertification areas, and the difficulties in soil sampling, high costs, and unstable soil layers encountered when using traditional topsoil methods for vegetation restoration.

The application discloses a compound lactic acid bacteria additive for improving the quality of corn straw-sweet potato vine compound silage and application thereof, and belongs to the field of feed processing. The compound lactic acid bacteria additive comprises the following components in parts by weight: 0.5-1.5 parts of lactobacillus plantarum and 0.8-1.2 parts of lactobacillus buchneri. The compound lactic acid bacteria additive can significantly improve the crude protein content of corn straw-sweet potato vine compound silage, promote the degradation of fiber components to improve the digestion and utilization rate, quickly reduce and maintain the low pH value of the silage, reasonably accumulate lactic acid, inhibit the generation of butyric acid and the accumulation of ammonia nitrogen, maintain a high propionic acid content to prolong the aerobic stable period of the feed, and has better effects than traditional silage additives in terms of fiber degradation, protein retention, fermentation environment regulation and the like, so that the research blank of the special additive for the compound raw material silage is filled, and the resource utilization of agricultural wastes is realized.