588 results about "Sugar beet" patented technology

The invention belongs to the technical field of molecular biology, immunology and virology, and discloses an RT-LAMP-CRISPR / Cas12b-based micro-fluidic detection kit and method for beet western yellow virus, isothermal amplification LAMP and CRISPR / Cas12b detection are connected in a reaction chamber by utilizing a raffinose dynamic diffusion system, and simultaneous detection of multiple samples is realized through a micro-fluidic chip. The detection method effectively avoids aerosol pollution, has the advantages of excellent specificity, sensitivity and visualization, is simple and convenient to operate, does not need expensive instruments and equipment, can simply, conveniently and quickly detect whether pepper and beet samples are infected by beet western yellowing virus in the field, and improves the detection efficiency.

The invention relates to a phellinus igniarius mycelium fermentation product and a preparation method and application thereof, and the preparation method comprises the following steps: inoculating a phellinus igniarius mycelium seed solution into a sterile fermentation culture medium for culturing, carrying out solid-liquid separation, filtering a clear liquid through a membrane and sterilizing to obtain the phellinus igniarius mycelium fermentation product, the fermentation medium comprises the following components: a beet extract, a deep eutectic solvent and water. The beet extract and the deep-eutectic solvent are creatively adopted as culture medium components to prepare the phellinus igniarius mycelium fermentation product, the beet extract and the deep-eutectic solvent jointly provide nutrients needed by phellinus igniarius fermentation, meanwhile, the deep-eutectic solvent is used for regulating metabolism, and compared with a product obtained through fermentation of a traditional culture medium, the phellinus igniarius mycelium fermentation product has the advantages that the fermentation efficiency is high; the content of active ingredients in a fermentation product obtained by adopting the culture medium with the formula is remarkably increased, and the fermentation product is good in uniformity and high in stability, is a clear liquid in appearance, has no abnormal odor and has slight phellinus igniarius characteristic odor.

To provide a method for producing an oleanolic acid-containing extract which enables easy production of an oleanolic acid-containing extract from grape pomace without the need of using high-concentration organic solvents.SOLUTION: This method includes: a first step of preparing a mixed solution containing a natural deep eutectic solvent with sugar beet-derived betaine as the hydrogen bond acceptor and grape pomace; and a second step of deriving an extract containing an oleanolic acid from the mixed solution prepared in the first step.SELECTED DRAWING: None

The invention discloses a beet multispectral data dimension reduction processing method based on principal component analysis, and relates to the technical field of agricultural information processing, and the method comprises the following steps: (a) carrying out centralized preprocessing on original beet multispectral data; (b) extracting principal components by adopting a double-path parallel mechanism: executing standard principal component analysis on a path I, and screening the principal components according to a variance contribution rate on the basis of a sample covariance matrix; according to the beet multispectral data dimension reduction processing method based on principal component analysis, through a double-path principal component fusion mechanism and orthogonal verification design, the inherent contradiction that global structure reservation and discriminant feature enhancement are difficult to consider in a traditional dimension reduction method is overcome while the dimension of beet multispectral data is reduced.

The invention discloses a biological hydrogen production method for coupling a coal seam microbial community and beet pulp waste. The biological hydrogen production method comprises the following steps: step 1, collecting coal seam microorganisms; step 2, sample pretreatment; 3, preparing a culture solution; step 4, flora enrichment culture; and 5, constructing a biological hydrogen production system to obtain hydrogen-rich gas. Microorganisms adopted in the method are original microorganisms in underground in-situ coal seam or ground coal-bed gas well drainage and mining water, sugar industry waste beet pulp is adopted as a hydrogen production substrate, and aiming at the bottlenecks of high strain cost, limited substrate applicability and the like in an existing biological hydrogen production technology, the coal seam microorganisms and sugar industry waste residues are coupled, so that the yield of hydrogen is increased. A low-cost hydrogen production system is constructed, so that the economic cost in the microbial hydrogen production process is reduced, and the beet pulp has the advantages of being safe, easy to obtain, low in cost and high in gas production rate, has the advantages of being easy and convenient to operate, economical, efficient, environmentally friendly and the like, and has a good industrial application prospect.

The invention provides an organic liquid suspension fertilizer as well as a preparation method and application thereof. Comprising the following components in parts by weight: 10-15 parts of chitosan mother liquor, 12-16 parts of amino acid fermentation mother liquor, 23-27 parts of gibberellin mushroom dreg fermentation liquor, 30-35 parts of vinasse fermentation liquor, 5-10 parts of potassium humate, 1-3 parts of a surfactant, 12-15 parts of a nitrogen fertilizer, 10-14 parts of a phosphate fertilizer, 26-31 parts of a potassium fertilizer, 3-8 parts of a trace element mixture and 35-40 parts of small molecule water. The organic liquid suspension fertilizer prepared by the invention can be used as a crop fertilizer, especially can improve the quality of potatoes and the yield and sugar content of beet, and reduces brown spot.

The invention provides a beet genetic diversity analysis method based on whole genome re-sequencing. The method comprises the steps of PacBio HiFi library construction, computer sequencing, data information analysis, assembly quality evaluation and Hi-C auxiliary genome assembly. The invention further provides application, and the high-continuity beet reference genome is used for analyzing beet intraspecific genetic diversity and developing high-density molecular markers. According to the method, the high precision of HiFi, the super-long read length of Nanopore and Hi-C space interaction data are combined for the first time, the problems of repeated sequence and complex SV analysis are solved, and all-round breakthrough of genome continuity, annotation integrity, genetic diversity coverage and epigenetic integration is achieved.

The invention belongs to the technical field of microorganisms, and particularly relates to bacillus thuringiensis ZR-560 and application thereof, the bacillus thuringiensis ZR-560 is preserved in China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.30586. The invention further discloses a preparation method of the bacillus thuringiensis ZR-560. The bacillus thuringiensis ZR-560 strain provided by the invention has high insecticidal toxicity, and the parasporal crystal protein preparation of the bacillus thuringiensis ZR-560 strain has a corrected death rate of 100% for spodoptera frugiperda, ostrinia nubilalis, prodenia litura and beet armyworm, and is a Bt strain with a relatively broad-spectrum insecticidal effect.

The invention discloses beet seed graded cleaning equipment, and relates to the technical field of graded cleaning, the beet seed graded cleaning equipment comprises a separated stirring assembly and a plurality of cleaning bins, the separated stirring assembly comprises a base plate, the bottom of the base plate is detachably connected with a material carrying frame, and a plurality of through holes are distributed in the side part of the material carrying frame; the motor is fixed on the base plate, the motor is provided with an output end, and the output end is connected with an output shaft; power transmission is conducted on the stirring assembly through the output shaft, the stirring assembly at least comprises a center rod and stirring blades installed on the center rod, and a through inner flow channel is formed in the middle of the center rod so that gas can be injected into the top of the center rod and discharged from the bottom of the center rod; wherein to-be-cleaned beet seeds are preset in the material carrying frame, the separated stirring assembly flows in the multiple cleaning bins, and efficient and comprehensive cleaning of the beet seeds can be achieved through combined use of the multiple cleaning bins and the separated stirring assembly.

The utility model discloses a folding type movable belt loading and unloading machine, and relates to the technical field of material transferring, loading and unloading equipment. Comprising a rack, a loading and unloading transportation device, a lifting device, a moving device and a control box 10, the loading and unloading transportation device comprises a loading and unloading transportation fixing assembly and a loading and unloading transportation bending assembly; the loading and unloading transportation fixing assembly is low in left and high in right, the lower left portion of the loading and unloading transportation fixing assembly is connected with the left end of the rack, and the lower right portion of the loading and unloading transportation fixing assembly is supported by the upper ends of stand columns 17 arranged on the front side and the rear side of the upper right portion of the rack. The right end of the loading, unloading, transporting and fixing assembly is rotationally hinged to the left end of the loading, unloading, transporting and bending assembly. The upper end of the lifting device is rotatably hinged to the lower portion of the middle left portion of the loading, unloading, transporting and bending assembly, and the lower end of the lifting device is rotatably hinged to the right end of the rack. The automatic loading and unloading device has the characteristics of convenience in use, better stability, safety, reliability, loading and unloading functions and the like, and can be used for transferring agricultural and sideline products, industrial products and luggage goods such as kelp, tobacco leaves, beet, hemp fiber and the like.

The invention discloses a beet sowing method and device, and belongs to the technical field of agricultural sowing machinery, the device comprises a moving unit, the moving unit is provided with a seed conveying unit and a sowing unit, the seed conveying unit is used for storing and quantitatively conveying beet seeds, and the sowing unit is used for sowing the beet seeds; the sowing unit is used for sowing seeds conveyed by the seed conveying unit, the sizes of seed receiving holes and discharging holes can be accurately adjusted according to the types of the beet seeds through unique conveying component design of the seed conveying unit, and quantitative screening and conveying of the seeds are achieved in cooperation with movement of a feeding plate driven by an air cylinder; waste of seeds is avoided, it is ensured that the planting density of beet on each piece of land is uniform, and a good space condition is provided for growth of beet.

The invention discloses a microbial inoculum for inhibiting beet root rot and application of the microbial inoculum, the microbial inoculum is obtained by fermenting brevibacterium alimentarius, the microbial inoculum has the remarkable characteristics of saline-alkaline tolerance, high viable count and the like, and the yield loss caused by diseases can be reduced by effectively preventing and treating the beet root rot, so that the yield and quality of crops are improved. After the fungicide is used for treatment, in normal soil, the seed germination rate and morbidity are different from those of a control group. Particularly, in disease nursery soil, the germination rate of the seeds can be remarkably increased and the morbidity can be reduced by treating the seeds with the bacterial liquid. The microbial agent provided by the invention not only reduces the investment cost of chemical pesticides, but also can improve the yield and quality of crops, and brings higher economic benefits. In addition, the biological agent is environment-friendly, is beneficial to maintaining the health and stability of a soil ecosystem, and promotes the sustainable development of agriculture.

The invention discloses a preparation method of meta-phosphorylated polysubstituted pyridine compounds, and belongs to the technical field of organic synthesis. The synthesis process is simple, highly toxic reagents, various catalysts and expensive noble metal catalysts do not need to be used, tert-olefin amide and an organophosphorus reagent are used as basic raw materials, manganese acetate is used as an accelerant (conventional reaction reagents, solvents and accelerants are utilized), and the tert-olefin amide is synthesized through an intramolecular free radical cascade reaction. The meta-phosphorylated polysubstituted pyridine compound can be efficiently obtained in one step, and the yield is as high as 95%; in addition, the reaction raw materials are cheap and easy to obtain, the atom economy is high, the substrate universality is wide, and the operability is high. The meta-phosphorylated polysubstituted pyridine compound disclosed by the invention has relatively good insecticidal activity on beet armyworm larvae, and can be applied to agricultural pest control as an insecticide.

The invention discloses a chitosan-based preservative film with a pH colorimetric function as well as a preparation method and application of the chitosan-based preservative film. The chitosan-based preservative film is prepared from the following preparation raw materials: chitosan, cellulose nanofibers, a deep eutectic solvent and a beet red-zinc ion complex. Wherein the chitosan enables the film to have antibacterial property; the cellulose nanofiber can enhance the tensile strength and toughness and reduce the water vapor / oxygen permeation coefficient; the beet red-zinc ion complex has the characteristic of more stable color development, and the color difference response delta E to pH 2-12 is greater than or equal to 8. The chitosan-based preservative film disclosed by the invention can be applied to food fresh-keeping packaging and food freshness monitoring; the preservative film disclosed by the invention can be used for effectively prolonging the service life of fruits and vegetables while ensuring the food safety; in food freshness monitoring application, the preservative film changes from low-pH-value orange to high-pH-value yellow according to the change of acid-base conditions, and the preservative film can be used as a pH colorimetric sensing film for freshness monitoring.

The invention provides a sow feed added with puffed rice and a preparation method of the sow feed. The sow feed comprises the following components in parts by weight: 30-50 parts of puffed rice, 10-20 parts of soybean meal, 10-20 parts of wheat bran, 2-6 parts of sugar / beet pulp polypeptide, 20-30 parts of mixed forage powder, 2-6 parts of pea fibers, 2-6 parts of pennisetum purpureum dietary fibers, 5-15 parts of manioc waste, 4-10 parts of a haematococcus extract, 2-8 parts of a cercis chinensis extract, 1-4 parts of a composite strain, 0.1-0.6 part of temperature-resistant phytase and 0.5-0.9 part of myristic acid. According to the present invention, the production method is simple, and the prepared sow feed can improve the lactation yield of sows, increase the number of immune globulins in milk, improve the immunity of piglets, improve the intestinal microbiological structure and the intestinal morphology of the piglets, reduce the diarrhea of the piglets, improve the immunity of the piglets, improve the immunity of the piglets, improve the immunity of the piglets, and improve the immunity of the piglets. The growth and development of piglets are promoted.

The invention relates to the technical field of production of potassium fulvate, in particular to a process for producing edible alcohol and co-producing potassium fulvate by fermenting beet. The method comprises the following steps: performing coarse crushing and fine crushing on beet to form slurry, adding squeezed water, and collecting into an adjusting tank; transferring the slurry into a conversion tank for biological conversion, then carrying out solid-liquid separation treatment to obtain juice and wet residues, and squeezing the wet residues; mixing the juice with the wine mother liquor, performing two-stage fermentation to obtain fermentation liquor, and concentrating the fermentation liquor to obtain edible alcohol and waste liquor; distilling the waste liquid and adding a fulvic acid transforming agent for fermentative degradation, and then evaporating to remove moisture and concentrating to generate a concentrated solution; lime milk and the concentrated solution are uniformly mixed and stirred for neutralization, and the neutralized concentrated solution is dehydrated and dried to generate potassium fulvic acid dry powder. According to the method disclosed by the invention, polysaccharide substances in the beet are subjected to sufficient enzymolysis by utilizing the biotransformation agent, and sugar contained in the beet is sufficiently released, so that the utilization rate of beet sugar is increased.

The invention relates to the technical field of flammulina velutipes planting, in particular to a flammulina velutipes culture method and compost, which comprises the following steps: S1, preparing purple sweet potato water; the preparation method comprises the following steps: washing fresh purple sweet potatoes, mixing with water in proportion, boiling, cooling, filtering, and taking filtrate as purple sweet potato water for later use; s2, preparing a culture material; the raw materials comprise corncobs, rice bran, bran, cottonseed hulls, sugar beet pulp, soybean hulls, corn flour, brewer's grains, calcium carbonate and shellfish fossils. The preparation method comprises the following steps: weighing solid raw materials in proportion, stirring the raw materials in a stirrer for 10 minutes to obtain a mixture, uniformly mixing the mixture, adding the purple sweet potato water prepared in the step S1, fully stirring the mixture until the mixture is uniformly mixed, and controlling the water content of a final culture material to be 62-68% to obtain the culture medium. The purple sweet potato water is used for completely replacing tap water to serve as a culture material component, the purple sweet potato water is not only a solvent, but also a natural nutrient solution rich in anthocyanin, polysaccharide, vitamins and mineral substances, flammulina velutipes hyphae can absorb and convert the substances, and the anthocyanin content in sporocarp is remarkably increased.

The invention provides a preparation method and application of deodorized beet red, and the preparation method comprises the following steps: peeling and crushing red beet, centrifugally separating, adding sugar, adding cultured bacterial liquid for fermentation to obtain fermented beet slurry, adsorbing the fermented beet slurry with macroporous adsorption resin to remove impurities, resolving with an ethanol solution, concentrating with a nanofiltration membrane, and sterilizing to obtain the deodorized beet red. The deodorized beet red concentrated solution is obtained. The preparation process of the deodorized beet red is simple, the beet red is high in stability, free of unpleasant odor and suitable for large-scale production, technical support is provided for industrial application of natural pigments, and the prepared deodorized beet red can be applied to the fields of food, medicine and cosmetics.

The invention provides a method for rapidly and non-destructively detecting the quality of beet seeds based on a near infrared spectrum technology, and relates to the technical field of non-destructive detection of the quality of the seeds, the near infrared spectrum of the beet seeds is collected, and the characteristic wavelength is extracted through an improved competitive self-adaptive reweighted sampling algorithm; meanwhile, depth features are extracted by using a customized convolutional neural network, and the depth features and the depth features are fused to form a fusion feature vector with high characterization force. Secondly, establishing a quality scoring system based on key agronomic characters after single seed sowing, and constructing a spectral feature and quality score contrast database; for to-be-tested seeds, the most reliable reference seed group is screened out from the database by calculating the weighted similarity and adopting a dual dynamic threshold strategy. And finally, in combination with the local space density of the reference seed and the correlation degree between the reference seed and the to-be-detected seed, carrying out credibility weighted local regression calculation, accurately predicting the final quality score of the to-be-detected seed, and realizing grading judgment.

The invention discloses a raw material cleaning device for preparing sugar from beet, and relates to the technical field of beet cleaning devices. Comprising a cleaning box, a cleaning mechanism is arranged in the cleaning box, the cleaning mechanism comprises oblique rotating rollers, the oblique rotating rollers are linearly distributed, and protrusions are evenly distributed on the surfaces of the oblique rotating rollers. According to the beet cleaning device, by arranging the structures such as the oblique rotating roller and the protrusions, materials can be put above the oblique rotating roller, dirt on the surface of beets can be rubbed down through the protrusions based on rotation of the oblique rotating roller, and the beets can roll down from the oblique rotating roller due to the fact that the oblique rotating roller is obliquely arranged; the rotary drum rotates, the arc-shaped shifting rods can be used for bearing beets, removed impurities can fall down from gaps between the adjacent arc-shaped shifting rods and rotate to a certain height along with the arc-shaped shifting rods, the beets roll into the hollow drum through the side opening and the opening along the arc-shaped shifting rods and are output through the conveying belt, and the purposes of automatic cleaning and material conveying are achieved.

The invention discloses a high-nutrition additive-free candy jam based on seaweed dietary fibers and a preparation method of the high-nutrition additive-free candy jam. The jam comprises the following components in parts by weight: 55-70 parts of a fruit base material, 0.7-1.3 parts of sugar beet-sourced low-methoxy amidated pectin, 2.2-4.2 parts of a seaweed dietary fiber compound system, 0.06-0.18 part of calcium salt, 0.08-0.25 part of an anthocyanin stable system and the balance of water, and exogenous saccharides and artificial or natural sugar substitutes are not added. Wherein the methoxylation degree of pectin is smaller than or equal to 35%, the amidation degree of pectin is 5-20%, and the seaweed dietary fiber compound system comprises brown seaweed soluble dietary fibers and red seaweed galactan dietary fibers. The preparation method comprises the following steps: pulping at low temperature and adjusting acid, dispersing and hydrating polysaccharide, adding glue in batches, degassing and controlling oxygen in stages, introducing laccase for covalent cross-linking, adding calcium in stages to form ionic cross-linking, adding an anthocyanin stabilizing system, filling at low temperature, and carrying out 580-620MPa ultrahigh pressure treatment. A stable gel structure and good water binding capacity are obtained under the condition of no exogenous sugar, bleeding is reduced, anthocyanin and color stability are improved, and meanwhile non-thermal sterilization and storage period safety are achieved.

The invention discloses a medium-severe saline-alkali soil beet seedling transplanting high-yield cultivation method. According to the method, for saline-alkali soil with the salt content of 0.3%-1.0% and the pH value of 8.5-9.5, through integration of salt-tolerant variety screening, engineering salt elimination and precise agronomic management, the yield of beet is remarkably increased, and the soil improvement efficiency is remarkably improved. The method comprises the following steps: (1) screening saline-alkaline tolerant beet varieties, and adopting a paper tube seedling raising method to improve the seedling rate; (2) an inverted trapezoidal empty pond and an impermeable membrane drainage system are constructed, salt is induced to migrate to a salt collecting pond in combination with small-flow drip irrigation, and the annual salt discharge amount is larger than or equal to 10 tons / mu; (3) dynamically regulating and controlling the planting density, and matching salt and alkali gradients; water and fertilizer are integrally managed, water is saved by 40% through drip irrigation, and the nitrogen fertilizer utilization rate is increased to 50%; and (5) foliar topdressing to increase the sugar content to be greater than or equal to 16%. According to the method, the root tuber yield reaches 4.8-5.2 tons / mu, the annual salinity reduction amplitude of a plough layer is 15%-20%, the organic matter content is increased, the problems that saline-alkali soil beet planting is high in cost and low in efficiency are solved, and a feasible scheme is provided for resource utilization of saline-alkali soil in northwest arid regions.

The invention provides a microbial agent for overcoming successive cropping obstacles of beet and a preparation method and application thereof, and belongs to the technical field of microbial agents. The microbial agent comprises the following components in parts by mass: 30-40 parts of sodium alginate, 60-70 parts of a bacterial liquid, 3-5 parts of charcoal, 2-4 parts of calcium chloride and 10-20 parts of a soil conditioner, the bacterial liquid comprises a micrococcus luteus GZU-Mi02 bacterial liquid, a fragrance-like fungus C40 bacterial liquid and a bacillus amyloliquefaciens Z-2 bacterial liquid. The microbial agent prepared by the invention not only can solve the successive cropping obstacle of beet, but also can promote growth of beet and increase income, and meanwhile, improves soil nutrients and structure, thereby fundamentally eliminating the successive cropping obstacle of beet.

The invention provides a YOLOv11-based beet armyworm prediction method and system, and the method comprises the steps: constructing an image data set through employing YOLOv11 in combination with the day and night activity characteristics of beet armyworms; and constructing an anti-interference feature library. And constructing a space-time attention enhanced LSTM-GRU hybrid network, introducing an insect pest migration diffusion matrix and a growth period dynamic weight mechanism, and outputting a beet armyworm occurrence prediction result. According to the method, the image data set is constructed, feature alignment and fusion are realized through processing, and the target detection accuracy is improved. And an insect pest migration diffusion matrix and a growth period dynamic weight mechanism are introduced, so that cross-region migration path quantitative prediction is realized, and prediction is more accurate. Interference targets are eliminated by means of an anti-interference feature library and a filtering algorithm, weighting processing is performed on features and information in combination with a network, a three-dimensional prediction result is output, a full-chain solution is formed, and the accuracy, dynamic performance and anti-interference capability of beet armyworm prediction are improved.

The utility model discloses a beet intertillage fertilization hilling device which comprises an outer shell, a fertilization box is arranged at the upper end of the outer shell, a cover plate is arranged at the upper end of the fertilization box, a conveying mechanism is fixedly connected to one side of the inner wall of the fertilization box, and adjusting mechanisms are fixedly connected to the two sides of the upper end of the outer shell. A fertilizer outlet penetrates through the lower end of the outer shell, and a partition plate is fixedly connected to the bottom of the inner wall of the outer shell. Through the arranged conveying mechanism, the equipment can realize that a spiral blade stirs a fertilizer to enter a fertilizer outlet under the joint cooperative use of a motor II, a bevel gear I, a bevel gear II and a rotating rod, the effect of automatically controlling the amount is achieved by controlling the rotating speed of the rotating rod, and the input amount of the fertilizer is effectively controlled; the problem that the fertilizer outlet is blocked due to fertilizer caking can also be prevented; and through the arranged adjusting mechanism, the equipment can be subjected to lifting adjustment under joint cooperative use of an air cylinder, a push rod and a driving wheel, so that the equipment adapts to different terrains, and movement is more stable.

The invention discloses an amide derivative and its application. The amide derivative is 5-chloro-N-(2-fluoro-3-(2-iodo-4-(perfluoropropane-2-yl)-6-(trifluoromethyl)phenyl)carbamoyl)phenyl)thiophene-2-carboxamide. The amide derivative of the invention has excellent persistence and rapidity in killing and controlling agricultural and forestry pests, especially chewing mouthparts pests such as diamondback moth, beet armyworm, cotton bollworm, etc., and is not easy to produce cross-resistance with existing diamide compounds. Moreover, the safety to mammals is very excellent, and the safety to beneficial insects such as bees is excellent. The product has huge market potential in the field of agricultural and forestry pest control in the future and has very good prospects for promotion and application.

The invention discloses a composition for resisting altitude stress and improving hypoxia tolerance, and belongs to the field of nutritional health-care food and functional compositions. The composition comprises the following components in parts by mass: 20-60 parts of beet root powder, 10-50 parts of cordyceps militaris powder, 5-40 parts of astragalus membranaceus powder, 0.5-5 parts of ginseng powder and 1-10 parts of Chinese wolfberry fruit powder. The composition can be prepared into foodstuffs such as soft sweets, tablets, powder, drinks, capsules and the like or other nutritional supplement forms, so that the problems of single effect, indefinite action mechanism and poor compliance of the existing product are solved, and multi-target regulation of hematopoiesis enhancement, energy metabolism improvement, oxidative stress inhibition and circulation improvement is realized.

The utility model belongs to the technical field of unloading devices, and particularly discloses a beet unloading system for manufacturing sugar from beet, which comprises a pit, a conveyor belt is arranged at the bottom of the pit, a rail car is arranged below the tail end of the conveyor belt, baffles are uniformly arranged on the conveyor belt, an inflection plate is arranged above the baffles, and the inflection plate is arranged below the tail end of the conveyor belt. And a cleaning pipe is arranged above the inflection plate. The conveying belt is arranged below the pit, the beet can be directly conveyed after being unloaded, unloading and conveying efficiency is improved, the cleaning pipe is arranged, spraying and cleaning can be carried out during conveying, equipment is reduced, cost is reduced, the baffle is arranged to prevent beet from falling, the inflection plate is arranged, the beet can roll left and right when passing through the inflection plate, and the beet conveying efficiency is improved. And cleaning is facilitated.

The invention discloses a soil replacement device for a beet continuous cropping plough layer. The soil replacement device comprises a frame, the surface soil operation assembly comprises a soil throwing mechanism, the soil throwing mechanism is rotationally connected to a first moving frame, a first motor is in transmission connection with the soil throwing mechanism, the first moving frame is movably arranged on the frame, and a first hydraulic cylinder is in transmission connection with the first moving frame; the deep soil operation assembly comprises a crushing mechanism and a soil discharging mechanism, the crushing mechanism and the soil discharging mechanism are arranged on a second moving frame, a second motor and a third motor are arranged on the second moving frame, the second motor is in transmission connection with the crushing mechanism, the soil discharging mechanism is in transmission connection with the third motor, and the second moving frame is movably arranged on the vehicle frame. And a second hydraulic cylinder is arranged on the frame and is in transmission connection with the second moving frame. According to the device, replacement of surface soil and deep soil can be achieved, meanwhile, the soil can be crushed, after replacement of the soil is completed, the soil can be directly used for cultivation, and more convenience is achieved.

The present invention relates to a method for preparing microbial exopolysaccharides and their use in tissue culture medium, belonging to the technical field of microbial polysaccharide preparation. The method for preparing microbial exopolysaccharides utilizes batch fermentation of different microorganisms, adds a beet extract and a supplement to the culture medium to promote microbial exopolysaccharide production, and further purifies, enzymatically hydrolyzes, and separates the exopolysaccharides. The resulting target microbial exopolysaccharides have a good effect on promoting the development and rooting of tissue culture seedlings and can be used to prepare tissue culture medium.