729 results about "Corn stover" patented technology

The invention discloses a zinc-iodine battery positive electrode material based on corn straw shell derived porous carbon and a preparation method of the zinc-iodine battery positive electrode material. According to the material, corn straw shells serve as the sole carbon source, an indigenous nitrogen-doped biomass charcoal carrier with a hierarchical pore structure is prepared through pre-carbonization and KOH activation processes, and the material is characterized in that the specific surface area is larger than or equal to 1500 m < 2 > / g, and the micropore proportion is larger than 90%. The iodine is loaded on the carrier (the iodine content is greater than or equal to 45wt%) through a vacuum sublimation method to form the indigenous nitrogen-doped biomass charcoal / iodine composite material. According to the positive electrode material, through the synergistic effect of physical confinement and pyridine nitrogen chemical adsorption, the multi-iodide shuttle effect is effectively inhibited, so that the capacity retention rate of the zinc-iodine battery is greater than or equal to 93% after 40000 cycles under the current density of 2A g <-1 >, and the capacity retention rate is greater than 45% under the rate of 10A / g. The method has double benefits of agricultural waste resource utilization and high-performance energy storage device development.

The invention discloses a multifunctional low-temperature corn straw degradation complex microbial inoculant, a preparation method and application, the complex microbial inoculant is compounded by a plurality of microorganisms with straw degradation, potassium dissolving and growth promoting functions, and the complex microbial inoculant comprises the following strains: bacillus subtilis K15, curveolate Prickia L11 and bacillus mycoides L31. The complex microbial inoculant disclosed by the invention realizes synergistic interaction and functional complementation, and through scientific compounding of strains, the straw decomposition rate is remarkably increased, and the decomposition period is obviously shortened; the adaptive capacity and colonization competitiveness of microorganisms in a low-temperature and complex soil environment in winter are enhanced. The complex microbial inoculant disclosed by the invention also has multiple functions of degrading straws, dissolving potassium, producing IAA (Indoleacetic Acid) and the like. The soil potassium which is difficult to utilize can be converted into quick-acting potassium while the straws are quickly decomposed to release nutrients.

The invention relates to the field of agricultural fertilization, in particular to a corn straw returning-to-field and fertilization operation path collaborative scheduling optimization method, which comprises the following steps: performing standardization processing on farmland multi-source original data to obtain a field piece unit standardization feature vector; performing imbalance degree analysis on the feature dimension distance component to obtain a feature contribution balance factor; performing activeness evaluation on neighborhood membership distribution of the field units to obtain a spatial membership smoothing factor; obtaining adaptive distance measurement by combining a feature contribution balance factor and a space membership smoothing factor; and performing hardening processing on the final membership matrix to obtain an agricultural machinery path collaborative scheduling instruction set, thereby solving the problems of misalignment of a zoning result, fragmentation of a management boundary and unreasonable agricultural machinery path scheduling in an abnormal straw accumulation region based on a standard FCM clustering algorithm in the prior art.

The invention discloses a corn straw nanocellulose reinforced water-resistant fully-degradable mulching film and a preparation method thereof, and belongs to the technical field of agricultural mulching films. The method comprises the following steps: performing two-step DES treatment on corn straws to obtain a nano-cellulose dispersion liquid; a PVA solution with the concentration of 8-12 wt% is prepared; 1-3 wt% of an ultrasonic dispersion silicon source dispersion liquid is prepared; the preparation method comprises the following steps: adding 10 parts of PVA solution, 1.25 parts of silicon source dispersion liquid and 20 parts of glycerol into 100 parts of nanocellulose dispersion liquid to obtain film coating liquid, carrying out curtain coating in a polytetrafluoroethylene mold, and naturally drying to form the film. PVA has good film-forming property but poorer water resistance, and nano cellulose and nano silicon dioxide can be used as green modifiers to be blended with PVA and self-assembled to form a hydrogen bond cross-linking system, so that a'rigid cellulose and silicon dioxide network-flexible PVA matrix 'enhanced structure is formed. Meanwhile, forestry and agricultural residues (corn straw) are adopted as raw materials, nanocellulose is prepared through a two-step deep eutectic solvent (DES), and the problem of high pollution caused by traditional strong acid / strong alkali treatment is solved.

The invention provides a method for preparing an edible mushroom culture medium from agricultural waste biomass and application, and belongs to the technical field of agricultural resource utilization and edible mushroom culture. The edible fungus culture medium provided by the invention is prepared from the following components in parts by mass: 10 to 20 parts of wood dust, 15 to 30 parts of sawdust, 15 to 30 parts of corn straw, 20 to 30 parts of algae waste, 30 to 50 parts of cottonseed hull, 3 to 10 parts of chitosan, 3 to 10 parts of humic acid, 1 to 3 parts of gypsum, 1 to 3 parts of lime and 0.3 to 1 part of compound strain. By adopting the edible mushroom culture medium disclosed by the invention, the yield and the quality of mushrooms can be remarkably improved, and the quality of the mushrooms is effectively improved due to the addition of the algae waste, the humic acid and the chitosan. Meanwhile, the edible mushroom culture medium can also be used for cultivating other types of edible mushrooms such as oyster mushrooms and pleurotus eryngii, and the yield of the edible mushrooms is increased.

The invention provides a base material and a method for improving the carbon sequestration capacity of an ecological restoration base material containing kitchen garbage through arbuscular mycorrhiza. The base material comprises a dry spraying ecological restoration base layer and a wet spraying surface layer. The surface layer is prepared from the following components in parts by weight: a kitchen waste ecological restoration base material carbon sequestration mixture A, planting soil, a soil adhesive, a water-retaining agent, biochar and a compound fertilizer; the base layer is prepared from the following components in parts by weight: a kitchen waste ecological restoration base material carbon sequestration mixture B, planting soil, a soil adhesive, 100-mesh corn straw, biochar and a compound fertilizer. According to the method, pollution of the kitchen garbage to the environment is effectively reduced, the resource value of rich nutrients in the kitchen garbage is fully played, the functions of organic acid generated after the kitchen garbage is decomposed and arbuscular mycorrhiza for adjusting osmotic equilibrium and the like are fully played, the soil structure of the saline-alkali area can be improved, the soil fertility is improved, and the soil quality is improved. The salt tolerance of the plant is improved while the alkaline environment is improved.

The invention discloses a preparation method of a modified corn straw nanocellulose-based dual-response controlled-release pesticide, and relates to the technical field of resource utilization of agricultural wastes and environmental protection. The method comprises the following steps: extracting nano-cellulose from corn straws, modifying the nano-cellulose with zein, preparing a modified corn straw nano-cellulose-based emulsion carrier, and preparing and evaluating the modified corn straw nano-cellulose-based dual-response controlled-release pesticide. The method verifies the effectiveness of the EDC / NHS cross-linking agent in an alcohol-soluble system, successfully modifies the corn straw nano-cellulose, realizes efficient utilization of waste resources, solves the problems of low utilization rate of traditional pesticides, combustion waste of corn straw and performance limitation of conventional cellulose, and has a wide application prospect. Meanwhile, a novel efficient, environment-friendly and economical dual-response controlled-release pesticide can be obtained, and important guiding significance is achieved for solving the bottleneck problem in the field of pesticide preparations.

The invention provides a preparation method of a lanthanum oxide modified biochar fertilizer, and belongs to the technical field of agricultural fertilizers, and the preparation method comprises the following steps: 1, microwave activation of biochar: placing corn straw biochar in a microwave reactor for radiation to obtain porous activated biochar; 2, potassium ion loading: dipping the porous activated charcoal in a saturated KOH solution to obtain a solid precipitate, and drying the solid precipitate to obtain potassium-loaded charcoal; 3, lanthanum-organic complex preparation: mixing lanthanum oxide with citric acid, adding deionized water to form a suspension, and performing evaporative crystallization to obtain a lanthanum-citric acid complex; 4, compounding modified biochar: mixing the obtained lanthanum-citric acid complex with potassium-loaded biochar to prepare slow-release lanthanum oxide modified biochar; and 5, compounding a phosphate fertilizer to obtain the slow-release composite charcoal fertilizer. According to the method, the charcoal is modified through lanthanum oxide, so that the modified charcoal has a larger specific surface area, the problem of hardening of the saline-alkali soil is better solved, and the oxygen content of the soil is increased.

The utility model relates to a corn harvesting device, and in particular to an ear and stalk harvesting platform, comprising a straw-pulling assembly, a stem-pulling roller located below the straw-pulling assembly, a bottom auger located below the stem-pulling roller, a throwing device located at the output end of the bottom auger, and an ear auger for transporting ears; it also comprises a front cross-knife assembly and a roller assembly located between the stem-pulling roller and the bottom auger. The ear and stalk harvesting platform of the utility model, by providing a conical head and spiral ribs and two types of stem-pulling plates on the stem-pulling roller to form a roller-plate combined stem-pulling, achieves smooth stem pulling without clogging, without damaging the stalks and ears, and has high stem pulling efficiency; by providing a roller assembly, the corn stalks are fully chopped, the structure is simple, and the working efficiency is high; the chopped stalks can be quickly, evenly and smoothly passed through the bottom auger through the oval-shaped structure-designed feed port into the fan and then thrown out, avoiding the stalks squeezing and blocking the channel.

The invention relates to the technical field of agricultural biomass pesticides, in particular to a preparation method of a lignin-based slow-release nano pesticide. According to the method, the cationic surface active agent-corn straw lignin nano pesticide with pH and enzyme double responsiveness is prepared through self-assembly. According to the material, cetyltrimethylammonium bromide (CTAB) is adopted as a cationic surface active agent to be prepared into modified lignin with corn straw, and the cationic surface active agent-corn straw lignin nano pesticide is further formed through a self-assembly method. The preparation method has the advantages of being simple in process, low in cost, environmentally friendly and the like, the obtained slow-release nano pesticide product is excellent in ultraviolet shielding performance, slow-release performance and insecticidal activity, pesticide can be accurately conveyed in a target spot mode, the possibility of pesticide residues and environmental pollution is remarkably reduced, and sustainable development of agriculture is promoted.

The invention relates to the technical field of sewage treatment, in particular to a method for improving the denitrification nitrogen removal performance of a corn or rice straw fermentation carbon source by using industrial glucose. According to the method, the straws are soaked and pretreated by adopting calcium peroxide, and meanwhile, in the anaerobic fermentation process, the anaerobic condition is kept through nitrogen, and zero-valent iron is added to obtain the straw fermentation liquor. Fermentation liquor and industrial glucose are mixed to serve as a composite carbon source, the activity of microorganisms in a sludge system is stimulated through the usability of the glucose, and the utilization rate of the microorganisms to the rice and corn fermentation liquor carbon source is increased; anaerobic fermentation conditions of rice and corn straws are optimized, the carbon source release rate is increased, the complexity of carbon source composition of fermentation liquor is utilized, the diversity of microorganisms is improved, excessive propagation of the microorganisms is avoided, and the biological denitrification capacity is improved. The method disclosed by the invention is beneficial to resource utilization of agricultural wastes, reduces the biological denitrification cost of sewage with a low carbon-nitrogen ratio, and promotes green and low-carbon development of sewage treatment.

The invention discloses an acidic organic fertilizer and a preparation method thereof, relates to the technical field of organic fertilizers, and solves the problems of high alkalinity, fast decomposition and poor long-term carbon sequestration stability of existing organic fertilizers. The preparation method comprises the following steps: adding charcoal powder and FeCl3. 6H2O into absolute ethyl alcohol, uniformly stirring, performing ultrasonic treatment, drying, uniformly grinding, calcining in a muffle furnace, and grinding again to obtain charcoal-loaded nano iron particles; uniformly mixing fresh pig manure and / or chicken manure with crushed rice and / or corn straw, and adjusting the water content with water; adding charcoal-loaded nano-iron particles, uniformly mixing, and piling into a strip pile body; the temperature of the pile body is tested in real time, the pile is turned for multiple times in the heating process when spontaneous heating begins, the pile is not turned in the cooling process when spontaneous heating ends, when the temperature of the pile body is reduced to 40 DEG C or below, composting is finished, and the decomposed pile body sample is smashed to obtain the acidic organic fertilizer. The method has wide popularization and application prospects in agricultural waste resource utilization and organic fertilizer production.

The invention discloses a phosphate solubilizing bacterium with eurytopic characteristic and application thereof, the bacterium is separated from corn straw biochar in which rice is continuously planted for 3 years, is identified as Pseudomonas paaversuta and is named as MPP2401, the preservation unit of the bacterium is China Center for Type Culture Collection (CCTCC), the address is Wuhan University, Wuchang District, Wuhan, Hubei province, the preservation date is November 6, 2024, and the preservation number is CCTCC NO: M20242439. The strain can keep stable phosphate solubilizing capacity under the environmental conditions of 15-30 DEG C, pH of 7-10 and NaCl 0-0.8 mol.L <-1 >, and still has functional phosphate solubilizing capacity even under the condition of extreme low temperature of 5 DEG C, the composite stress of pH of 7-8 and NaCl 0-0.8 mol.L <-1 > and the composite stress of pH of 9-10 and NaCl 0-0.6 mol.L <-1 >. Meanwhile, the bacterium has the broad-spectrum antibacterial characteristic, and the antibacterial rate on fusarium graminearum, fusarium verticillioides and magnaporthe oryzae reaches 41.0-77.6%. Due to the unique wide environment adaptability and the phosphate solubilizing-bacteriostasis dual-function synergistic characteristic, a microbial germplasm resource with production-ecology dual values is provided for biochar bacterial fertilizer development, saline-alkali phosphorus activation and biological prevention and control.

The invention discloses a Vinck Cellulomicrobe and application thereof in degradation of corn straw and improvement of soil fertility, and belongs to the field of agricultural microbial technology and solid waste resource utilization. The bacterial strain can secrete a plurality of hydrolase and oxidase including AA10 family lytic polysaccharide monooxygenase, AA2 peroxidase, GH3 and GH1 beta-glucosidase, GH16 / GH17 beta-glucosan endonuclease and AA1 multi-copper oxidase. The bacterial strain has the advantages that the bacterial strain can secrete a plurality of hydrolase and oxidase; fermentation liquor is applied to soil according to the straw mass ratio of 1: 5, and the corn straw degradation rate can be increased under the condition that the mass ratio of soil to straw is 100: 1. Meanwhile, the microbial agent can synergistically improve soil nutrients and increase the contents of rapidly available phosphorus, rapidly available potassium, alkali-hydrolyzable nitrogen, soluble organic carbon and total phosphorus in soil. According to the microbial agent, a straw lignocellulose structure is effectively cracked through a multi-enzyme system synergistic effect, and the dual effects of accelerating straw degradation and improving soil fertility are achieved.

The invention discloses corn straw pressing and burying soil covering equipment, which belongs to the technical field of agricultural equipment, and structurally comprises a crushing bin, a shoveling and guiding bin and a residue collecting bin, a shovel head and a soil preparation transverse cylinder are arranged at the front end of the shovel guide bin and the rear end of the crushing bin respectively; a transmission belt is arranged on the inner side of the shovel guide bin; the bottom of the slag collecting bin is fixedly communicated with a snakelike guide pipe, the lower end of the snakelike guide pipe extends to the deep position of the ground, a spiral conveying shaft is rotationally installed in the snakelike guide pipe, and a ground breaking plough is arranged on the front side of the bottom of the snakelike guide pipe; according to the application, corn straws and corn stubbles dispersed all around on the ground can be collected in a centralized manner, the direct contact amount of hard soil blocks and the crushing part is reduced, and the crushed corn straws and corn stubbles are fully mixed with a straw degrading bacterial agent and then are applied to the ground in a closed injection manner, so that the crushing efficiency is improved; the situation that straw chippings remain on the shallow layer of the ground and become nutrients for breeding of germs and eggs is prevented, adverse effects on the health condition of crops are avoided, and normal growth and development of the crops are guaranteed.

The invention discloses a method for improving drought tolerance and yield of wheat through combined application of compost and sodium selenite, and belongs to the technical field of agricultural planting. According to the method, wheat is planted after compost is applied to soil, and when drought stress occurs, a sodium selenite solution is sprayed to wheat leaves, so that oxidative stress indexes such as MDA, H2O2 and O2 <-> of wheat can be remarkably reduced, and the activity of antioxidant enzymes such as SOD, POD, CAT and APX can be improved; physiological indexes such as chlorophyll a, chlorophyll b, total chlorophyll, carotenoid, protein, soluble sugar and proline of wheat leaves are improved, growth and yield related traits of the wheat are improved, and finally the drought resistance and yield of the wheat are improved. The compost is prepared by taking 50%-55% of corn straw, 10%-20% of flue-cured tobacco straw, 20%-25% of rice straw, 10%-15% of livestock manure and 0.1%-1% of bacillus subtilis as raw materials, adding organic wastewater or tap water, mixing, composting and fermenting.

The invention relates to the technical field of saline-alkali soil improvement, and particularly discloses a method for improving light and moderate saline-alkali soil through winter rye crop rotation, which comprises the following steps of land parcel preparation, winter rye sowing, winter rye field management, management after winter green turning, winter rye harvesting, feeding sweet sorghum sowing and feeding sweet sorghum field management. According to the method, the moderate saline-alkali soil is improved by sowing the winter rye and sowing the feeding sweet sorghum, and after crop rotation of the winter rye and the feeding sorghum, the salt content and pH of the soil are effectively reduced, the soil structure is improved, and the saline-alkali soil is suitable for ploughing. Meanwhile, high economic benefits can be brought, two seasons of forage grass income is obtained per mu, meanwhile, the sediment transport amount in spring is obviously reduced in a land parcel covered with winter rye, compared with a corn straw stubble field, the sediment transport amount in the same period of the rye field is reduced, and losses of organic matter and nutrients of surface soil are reduced.

The invention discloses bacillus subtilis and application thereof. The bacillus subtilis LDH-Y3 is obtained by being separated from Guangzhou commercially available Rakang goat milk pasteurized milk, and is preserved in Guangdong Microbial Culture Collection Center, and the preservation number is GDMCC No: 64442. The bacterial strain is high in growth speed and high in activity, the maximum viable count reaches 9.36 log CFU / mL, and the bacterial strain has good gastrointestinal tract digestion resistance. The bacillus subtilis is high in cellulase production capacity, CMCase (Carboxymethyl Cellulase) reaches 39.66 U / mL, beta-Gase (beta-Gase) reaches 2.36 U / mL, and Fpase (Fpasease) reaches 11.37 U / mL. The strain has the capability of inhibiting helminthosporium convex hilum and helminthosporium longibrachiatum, and after solid state fermentation of corn straw, the content of neutral detergent fibers in the corn straw can be reduced, and the digestibility of the straw is improved.

The invention provides a preparation method of a milk goat total mixed ration containing fresh oat grass, and the method comprises the following steps: preparing a first fermentation product from peanut straw, soybean meal and wheat bran, then carrying out mixed fermentation on the first fermentation product and corn straw to prepare a second fermentation product, and mixing the second fermentation product with other components containing the fresh oat grass to prepare the milk goat total mixed ration. The milk goat total mixed ration provided by the invention can improve the milk yield of milk goats or improve the level of polyunsaturated fatty acids in goat milk.

The invention discloses a corn and peanut intercropping interannual rotation minimal tillage-free planting method, and belongs to the technical field of agricultural planting. The method specifically comprises the steps that sowing is conducted in a strip mode, and strip-shaped intercropping planting is achieved; the corn row spacing L1 and the peanut row spacing L2 are both 40cm, and the distance L3 between adjacent corn and peanut is 80cm (corresponding to the local conventional ridge spacing of 50cm) or 120cm (corresponding to the local conventional ridge spacing of 60cm); during harvesting, peanuts are harvested firstly, corn is harvested after the peanuts are picked, the stubble height H of the harvested corn is 25-35 cm, and the harvested corn straw covers the ground surface of a peanut strip in a staggered mode to prevent wind erosion; corn stubbles and corn straw coverage are alternately arranged; in spring of the next year, the corn planting belt and the peanut planting belt are subjected to crop rotation, corn is directly subjected to no-tillage sowing, peanuts are subjected to shallow-rotary-tillage and minimal-rotary-tillage sowing, and the rotary tillage width and depth are both 8-10 cm; in the following years, corn and peanut belt intercropping and interannual crop rotation are carried out. The agricultural operation feasibility is guaranteed while the agricultural regulation is met, and deep integration of the agricultural machinery and the agricultural technology is achieved.

The invention discloses a microbial fertilizer and a preparation method and application thereof.The microbial fertilizer comprises a biochar carrier and non-symbiotic nitrogen-fixing bacteria attached to the biochar carrier, and the non-symbiotic nitrogen-fixing bacteria are Klebsiella pneumoniae sp. The straw biochar has the advantage that the effect of improving the activity of nitrogenase is more remarkable according to the particle size of 0.25-2 mm. The biochar with the particle size of 0.25-2mm provides a good habitat for strain cells and can better preserve water and fertilizer, so that growth and reproduction of strains are guaranteed, and the biochar can be put into soil for use. The loading effect of the corn straw biochar is superior to that of wood biochar, the C: N value of the corn straw biochar is remarkably lower and ranges from 61 to 84, and growth of nitrogen-fixing bacteria is facilitated. The content of total nitrogen and microbial biomass nitrogen in soil is effectively improved, and the corn stalk carbon has a more obvious effect on increasing the microbial biomass nitrogen in the soil and is closely related to the activity of soil microorganisms.

The invention relates to the technical field of agricultural planting, in particular to a straw returning optimized fertilization method. The method comprises the following steps: cutting corn straws into small sections, and carrying out air drying treatment; then, the air-dried corn straw is flatly laid at the 20-30 cm position of the planting field; after straw returning to the field, base fertilizer is applied in combination with ploughing operation. The corn straw is cut into sections and air-dried, so that the contact area between the straw and microorganisms is increased, attachment and decomposition of the microorganisms are facilitated, and a proper living environment is created for the microorganisms. Base fertilizer is applied in combination with cultivated land after straw returning, on one hand, mass propagation of microorganisms is promoted, and the straw decomposition capacity of the microorganisms is enhanced; on the other hand, the straw, the soil and the base fertilizer are fully mixed, nutrients generated by straw decomposition are evenly distributed in the soil and absorbed and utilized by corn roots in time, the problems that straw decomposition is slow and the corn competes for nutrients and water are solved, normal growth of the corn is guaranteed, effective utilization of the straw is achieved, and good promotion of corn growth is achieved.

The invention discloses a corn harvesting device capable of automatically controlling stubble height, and belongs to the technical field of corn harvesting. The corn harvesting device comprises a machine body, a header, an auger, an electric push rod, a laser sensor, a hook plate, a baffle, a track, a spray head, a driving assembly, an unfolding assembly and a cleaning assembly. Laser sensors are fixedly connected to the two sides of the header, hook plates used for preventing corn straw from dumping are arranged at the top of the header, multiple sets of baffles used for preventing corn from flying out of the header are arranged at the top of the header at equal intervals, the track is connected with a driving assembly used for driving the hook plates to move, and the baffles are unfolded through an unfolding assembly installed at the top of the header. A spray head is arranged on one side of the track, and the auger sprays gas from the spray head through cleaning assemblies installed at the two ends so as to clean the interior of the track; the functions of automatically controlling the stubble height and preventing straw lodging can be achieved, and the loss rate of the corn harvesting device is reduced.

The invention discloses a vertical corn straw leaf and ear removing device, which belongs to the field of agricultural equipment accessories, comprises a main rotating rubber roller, an auxiliary rotating rubber roller, a transmission device, a motor and other components, and is characterized in that a 75-degree included angle is formed between the plane where the main rotating rubber roller and the auxiliary rotating rubber roller are located and the horizontal plane; the main rotating rubber roller comprises a rapid leaf removing section, a U-shaped ear picking section and a U-shaped ear picking claw, the surface of the rapid leaf removing section is coated with a rubber layer with patterns, the patterns are coarse patterns and can rapidly break skins, and the U-shaped ear picking section adopts a linear groove design parallel to a roller shaft and the protruding U-shaped ear picking claw. Under the relative rotation action of the driving rotating rubber roller and the driven rotating rubber roller, the corn straw leaves and ears are removed through friction force provided by the protrusions of the driving rotating rubber roller and torque of radial transmission, corn ears and leaves are removed at the same time, conditions are provided for subsequent straw skin and pulp separation, and the corn ear and ear removing efficiency is improved. The resource utilization of corn stalk skins and stalks is increased.

The invention discloses a method for pretreating corn straws and efficiently producing glucose. The invention provides a corn straw pretreatment reagent. The corn straw pretreatment reagent is prepared from the following components in percentage by mass: 20 to 80 weight percent of DES-Gly, 1 to 7 weight percent of DBU and water, the DES-Gly is formed by mixing choline chloride and glycerol. According to the present invention, with the application of the reagent to pre-treat corn straw and then perform enzyme hydrolysis to produce glucose, compared with the prior art, the yield of glucose can be significantly increased, and the yield of glucose can achieve 96.04%; the use amount of a solvent in pretreatment and the reaction temperature and time of pretreatment are greatly reduced, the reaction conditions are milder, and the cost is remarkably reduced. Therefore, the invention provides a novel technology which is simple in method, low in cost and high in efficiency and is used for producing the glucose by utilizing the corn straws, and has a very good application value.

The invention relates to a methane emission reduction effect technology of biochar in rice-free and rice-containing waterlogged soil. The specific preparation steps of the biochar are as follows: (1) harvesting corn straws; (2) firing the corn straws in the step (1) at 500 DEG C to obtain biochar; and (3) grinding and sieving the biochar in the step (2) to obtain 80-100-mesh corn straw biochar. Before the rice seeds are sown, after the corn straw biochar in different proportions in the step (3) is applied to the land, ploughing and uniform mixing are conducted, and after the rice seeds are sown, the rice seeds grow naturally to determine the optimal carbon sequestration proportion of the biochar. Results show that the rice-free group and the rice group to which 2% of the biochar is applied can well fix the carbon carried by the biochar in the soil, and the accumulated methane emission in the flooded soil can also be remarkably reduced. Scientific basis is provided for straw resource utilization, and the method has very important significance on green and sustainable agricultural development applying the biochar.

The invention relates to a preparation method and application of a corn straw beverage, belongs to the technical field of plant resource processing, and solves the technical problem of activity loss caused by easy oxidative degradation of flavonoid compounds in a corn straw water extract. According to the technical scheme, the method comprises the following steps: crushing corn straws, soaking in water, performing heat extraction for multiple times to obtain an extracting solution, performing rough filtration and centrifugation, and concentrating to obtain a water extracting solution; and mixing the water extract, sucralose, citric acid, potassium sorbate and purified water to prepare a beverage, sterilizing and filling. Flavonoid compounds are embedded through a potato starch nanoparticle and beta-cyclodextrin composite carrier, a sodium alginate-chitosan microcapsule double-layer coating and microcapsule jelly particle preparation technology is combined, a gel network is formed by compounding kappa-carrageenan and konjac glucomannan, and the embedding stability and release controllability of active ingredients are improved. The beverage prepared by the method has both herbal flavor and crisp and tender taste of jelly particles, effectively delays degradation of flavonoid compounds, and is suitable for being applied to development of functional plant beverages.

The invention discloses a method for preparing biochar through low-temperature carbonization of furfural residues and application, and the method comprises the following steps: pretreatment of furfural residues: carrying out dynamic drying by using superheated steam generated by a biomass boiler, so that the moisture content is reduced to be less than or equal to 25%; carrying out particle reinforced molding, namely mixing the furfural residues with corn straws and wheat straws, and carrying out granulation molding; carrying out segmented low-temperature carbonization, sequentially carrying out drying preheating, ash removal and carbonization stages on the particles, and enabling the hardness of the carbonized particles to reach 8MPa; by-products are recycled, pyrolysis non-condensable gas is used for boiler combustion, condensate can be used as liquid organic fertilizer, heat treatment activation is carried out, and carbonization is carried out for 2 h in a nitrogen environment at the temperature of 600 DEG C; washing and drying: washing with hydrochloric acid (HCl), and drying at 80 DEG C for 24 hours; the method solves the technical problems of high energy consumption in the furfural residue carbonization process and limited application range of carbonized products in the prior art, also solves the problems of limited adsorption capacity and difficult recovery of common charcoal, and is suitable for the environmental protection fields of heavy metal wastewater treatment, pollution remediation and the like.

The invention belongs to the field of feed processing, and particularly relates to a sweet potato seedling and corn straw mixed silage preparation method which comprises the following steps: S1, raw material pretreatment: respectively chopping sweet potato seedlings and corn straws; s2, mixing: the chopped sweet potato seedlings and corn straws are weighed, an additive is added, the mixture is uniformly mixed, the additive is a mixed lactic acid bacteria additive, and the addition amount is 0.1 g / kg; s3, loading into a silage container, compacting and sealing; s4, storage: the fermentation temperature range is 15-28 DEG C, preferably 25 + / -1 DEG C. According to comprehensive evaluation, the sweet potato seedlings and the corn straw are mixed and ensiled according to the proportion of 1: 1, and the comprehensive value is the highest. The proportion can effectively balance dry substances and moisture of the two raw materials, and the silage which is excellent in smell, color and texture, complete in nutrition preservation and excellent in fermentation quality can be obtained after the mixed lactic acid bacteria additive is added for ensiling for 60 days.

The invention belongs to the technical field of crop planting, and particularly relates to a wheat and corn two-season-in-one-year shallow-buried drip-irrigation water and fertilizer integrated planting method and equipment, and the method comprises the following steps: after corn is harvested, corn straws are crushed and returned to a field, and then rotary tillage and compaction are performed to crush soil; wheat is evenly sown in a wide range, drip irrigation belts are laid in the middles of wheat sowing widths, the width of the wheat sowing widths is 30-50 cm, and the width distance between the wheat sowing widths is 15-30 cm; performing field management on the wheat until the wheat is mature and then harvesting; after the wheat is harvested, the corn is sown at intervals, the corn is sown on the two sides of the sowing width of the sown wheat, and wide and narrow rows are formed between the corn; performing field management on the corn until the corn is mature and then harvesting; the method can shorten the distance between the wheat seeds and the drip irrigation zone and between the corn seeds and the drip irrigation zone, is short in watering time after sowing, is beneficial to seedling emergence, seedling alignment and seedling strengthening of the seeds, and is beneficial to improving the crop yield.