993 results about "Silage" patented technology

The invention discloses a silage corn harvester header height real-time automatic lifting system based on deep reinforcement learning, which comprises an angle sensor, a DDPG controller and a PID controller, the angle sensor can convert angle data between a header and the ground into an electric signal and output the electric signal to the DDPG controller, the input of the DDPG controller is a target value, an actual value and a deviation value, and the PID controller is used for controlling the real-time automatic lifting of the header height of the silage corn harvester. And an experience pool is added for the DDPG algorithm. The DDPG controller outputs a signal to the PID controller, the PID controller is provided with two signal input ends which are used for inputting an action signal and a deviation value respectively, the output end of the PID controller is connected with the hydraulic system, the header is controlled to ascend and descend through the hydraulic system, a target value is given by the outside, an actual value is fed back by the angle sensor, and the deviation value is the difference value between the target value and the actual value. The header lifting device has the advantages that automatic lifting of the header is completely controlled by a DDPG algorithm and a PID controller, and high automation of lifting of the header is achieved.

The invention relates to the technical field of microorganisms, in particular to application of streptococcus non-lactolyticus GX-7 and a complex microbial inoculant thereof in sugarcane leaf silage, the strain GX-7 is separated from healthy pig manure by a research group, and through detection, the strain has good cholate resistance and is suitable for surviving in intestinal tracts, and the strain GX-7 has good cholate resistance and is suitable for being used as a feed additive. The antibacterial effect on pseudomonas fluorescens, listeria monocytogenes, salmonella choleraesuis and shigella flexneri is achieved; the strain has a good fermentation capability on sugarcane leaves, and the sugarcane leaves are inoculated with a complex microbial inoculant prepared from streptococcus non-lactolyticus GX-7 and streptococcus non-lactolyticus GX-2, so that a synergistic fermentation effect can be achieved; after the silage prepared from the complex microbial inoculant is fed to female buffalo in the gestation period, it is found that the silage can effectively increase the content of milk protein, milk total solids and milk non-fat solids in colostrum of the female buffalo and relieve diarrhea of the female buffalo, and the silage is safe and good.

The invention discloses a green feed loading information acquisition and identification system and method based on an IaPFusion model, and belongs to the technical field of automatic filling and throwing of silage harvesters, and the system comprises a data acquisition module, a communication module, a data processing module and a fusion evaluation module. According to the invention, a deep learning technology is researched and utilized, accompanying vehicle hopper identification research is carried out, on the basis of obtaining two-dimensional and three-dimensional data of a feed box, a double-branch network based on an IaPFusion model is provided, image segmentation and point cloud segmentation technologies are combined, a data fusion method is adopted, automatic identification is carried out on the feed box and the green feed in the green feed loading process, and the identification efficiency of the feed box and the green feed is improved. The scientificity of silage harvesting is further improved, and forage loss is effectively reduced.

The invention discloses a cutting and quick dismounting and mounting device based on tractor three-point suspension, which belongs to the technical field of modern agricultural machinery and comprises a silage locomotive frame, a cutting device, a suspension device and a tractor frame. The chopping device is assembled on the silage locomotive frame, the suspension device is installed on the tractor frame, the silage locomotive frame is connected with the chopping device in an initial state, the suspension device is connected with the chopping device to be used for adjusting the angle of the chopping device, and the silage locomotive frame moves on the ground to adjust the position. And the chopping device and the silage locomotive frame are disassembled or assembled at a preset angle and position. The dismounting and mounting process of the chopping device on the silage locomotive frame is greatly shortened, the dismounting and mounting efficiency of the chopping device is improved, manpower and material resources are saved, and the safety risk of the chopping device in the dismounting and mounting process is also greatly avoided.

The embodiment of the invention discloses an energy-saving control method of a silage harvester and the silage harvester, and belongs to the technical field of equipment control. The silage harvester comprises a control handle, an engine and hydraulic equipment, and the energy-saving control method of the silage harvester comprises the steps that a received energy-saving mode request is responded, and whether an energy-saving mode of the silage harvester is a walking energy-saving mode or not is determined; under the condition that the energy-saving mode is the walking energy-saving mode, the real-time opening value of a control handle is determined; adjusting the real-time rotating speed of the engine to be a preset rotating speed according to the positive and negative values of the real-time opening value of the control handle; and under the condition that the real-time rotating speed of the engine is the preset rotating speed, the real-time rotating speed of the engine and the displacement current of the hydraulic equipment are updated based on the real-time opening value of the control handle and the output power of the engine. The silage harvester carries out power matching between the rotating speed of the engine and the hydraulic equipment in the running energy-saving mode, and the situation that the power of the silage harvester is excessive is avoided.

The invention discloses an application of Lactobacillus plantarum in at least one of the following items: a1, an application in improving the silage quality of silage, a2, an application in improving the silage quality, a3, an application in improving the silage quality, a4, an application in improving the silage quality, and a5, an application in improving the silage quality. A2, application in preparation of silage; a3, application in preparation of a silage additive; the strain name of the lactobacillus plantarum is LA2, the lactobacillus plantarum is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number of the lactobacillus plantarum is CGMCC No. 33484. According to the invention, the lactobacillus plantarum or the microbial inoculum thereof or the silage additive thereof is added into the silage for the first time, and tetracycline resistance genes in the silage can be remarkably reduced; after the lactobacillus plantarum or the microbial inoculum thereof or the silage additive thereof disclosed by the invention is added, the generation and residue of tetracycline resistance genes in feed can be reduced, the propagation of the tetracycline resistance genes in a food chain is reduced, the safety of forage grass is ensured, and the damage to animals, environment and human bodies is reduced; and the drug resistance of human pathogenic bacteria is reduced while the health level of animals is improved.

The utility model provides a self-propelled silage reclaimer, which relates to the technical field of reclaimers, and comprises a self-propelled silage reclaimer assembly, the self-propelled silage reclaimer assembly is provided with a dust collection assembly and an adjusting assembly, the self-propelled silage reclaimer assembly comprises a cutting reclaiming knife and a conveying belt, the dust collection assembly comprises a dust collection cover, and the dust collection cover is provided with a dust collection opening. And one end of the dust hood is connected with a conveying hose. The suction fan works to generate suction force, so that the dust hood sucks and removes flying dust generated during cutting and material taking, the sucked and removed dust and the like are conveyed to the collecting box through the conveying hose, the filter element is beneficial to preventing the dust and the like from entering the suction fan, and normal operation of the suction fan is guaranteed; and finally, the movable sealing plate moves in the sliding groove, so that the sucked dust and the like can be cleaned, the dust spreading in the working area is reduced, the dust attached to the surface of the machine is reduced, and an operator can more clearly observe the running state of each part of the machine.

The utility model relates to the technical field of silage, in particular to a silage device convenient to clean, which comprises a base plate, a feed table, a feed barrel, a cleaning component and a sealing component, the feed table is mounted at the top of the base plate, the feed barrel is vertically arranged on one side of the top of the feed table, and the cleaning component is mounted on the top of the feed table. A first through opening and a second through opening are formed in the upper portion and the lower portion of the feed barrel respectively, a round opening communicated with the second through opening is formed in the feed table, the cleaning assembly is installed at the top of the feed table, and the sealing assembly is installed at the top of the base plate. The cleaning assembly comprises a transverse rail, a movable frame, a first lead screw sliding table, a fixed plate, a multi-stage push rod, a lifting disc and a cleaning part, the cleaning part is used for brushing and blowing away silage remaining on the inner wall of the feed barrel, and the cleaned silage downwards falls onto the storage barrel through a second through opening and a round opening; silage can conveniently and quickly flow out of the feed barrel, and blockage is avoided.

The invention provides an SNP (Single Nucleotide Polymorphism) molecular marker combination, a molecular probe combination, a liquid phase chip and a kit for corn genotyping and application of the SNP molecular marker combination, the molecular probe combination, the liquid phase chip and the kit, and belongs to the technical field of gene chips. The SNP molecular marker combination and the liquid chip provided by the invention can be used for efficient and rapid genetic typing of corn germplasm resources, and are low in cost and suitable for corn biological breeding. The SNP marker provided by the invention uniformly covers the whole corn reference genome, provides a high-quality molecular marker for silage corn whole genome selective breeding, and can also be used for map-based cloning of important agronomic trait genes of silage corn.

The invention relates to the technical field of animal husbandry silage taking equipment, and particularly discloses a silage taking vehicle and a bottom silage taking method. The silage taking vehicle comprises a vehicle frame, a conveying belt and a shovel. The shovel is initially located below the front end of the conveying belt. And a group of first telescopic mechanisms, a group of second telescopic mechanisms and a group of third telescopic mechanisms are arranged on each side of the frame. The two sides of the frame are respectively provided with a sliding groove. The first telescopic mechanism comprises a first telescopic device, a sliding block and a connecting rod. And the connecting rod is connected with the sliding block and the front end of the shovel. The first expansion piece acts on the sliding block. The second telescopic mechanism is rotationally connected with the rear end of the shovel. The third telescopic mechanism is connected with the second telescopic mechanism. Under the driving of the first telescopic mechanism, the second telescopic mechanism and the third telescopic mechanism, the front end of the shovel is tightly attached to the ground and forwards shovels up silage on the ground, then the shovel is moved to the position above the conveying belt, the shovel is rotated to enable the silage on the shovel to fall on the conveying belt, and the automation degree and the working efficiency of the silage taking vehicle are improved.

The invention belongs to the technical field of biological feed, and particularly relates to a composite silage leavening agent, silage and application. The compound silage leavening agent is prepared from the following components: lactobacillus plantarum and vitamin enzyme, wherein the concentration of the lactobacillus plantarum is greater than or equal to 1 * 10 < 9 > CFU / kg, and the concentration of the cellulase is 1 * 10 < 6 >-1 * 10 < 8 > U / kg. In the preparation process of the silage, due to the synergistic effect of cellulase and lactobacillus plantarum, escape of nutrient substances such as ammoniacal nitrogen is reduced, the content of nutrient substances such as polypeptide is increased, and the nutritional value of protein of the silage is reserved. The ensiling feed disclosed by the invention is good in fermentation quality and rich in nutrient substances, and can improve the digestibility and the total volatile fatty acid yield of mutton sheep when being used for feeding the mutton sheep; and meanwhile, efficient conversion of silkworm branch and leaf byproducts can also be realized.

The utility model discloses a feed storage device, which belongs to the technical field of feed storage, and comprises a storage tank and a tank cover, the top of the tank cover is provided with a feed inlet, the bottom of the storage tank is provided with a discharge outlet, the storage tank is internally provided with a layered placement mechanism convenient for discharge, the inner wall of the storage tank is provided with a moisturizing mechanism, and the inner wall of the storage tank is provided with the feed inlet. According to the silage storage device, the layered placement mechanism is arranged, silage can be placed in a layered mode in the process, the feed placed in the layered mode can be placed in a ventilated mode, and a large amount of feed is effectively prevented from being accumulated together to cause rotting and deterioration; according to the silage storage device, silage placed on different layers can be conveniently discharged, the silage storage effect and the discharging efficiency are improved, a moisturizing mechanism is arranged, in the process, water can be sprayed to the silage when the silage is stored, the silage can be moisturized, and the silage is effectively prevented from being rapidly dried up.

The invention relates to the technical field of microorganisms, in particular to application of streptococcus non-lactolyticus GX-2 and a complex microbial inoculant thereof in peanut vine silage, and the strain GX-2 is suitable for surviving in the stomach and has an antibacterial effect on staphylococcus aureus, escherichia coli, pseudomonas fluorescens and listeria monocytogenes; the streptococcus non-lactolyticus GX-7 and the streptococcus non-lactolyticus GX-2 are prepared into a complex microbial inoculant, and then the complex microbial inoculant is inoculated into the peanut vines, so that the synergistic fermentation effect can be achieved at the mass ratio of 1: (1-3); after the gestational buffalo is fed with the silage prepared from the complex microbial inoculant, the silage is found to be capable of effectively increasing the contents of total milk solids and non-fat milk solids in the colostrum of the buffalo and relieving the diarrhea of the buffalo, and is safe and good.

The invention relates to the field of microbial feeds, in particular to a two-cut ramulus mori fermented feed and application thereof in chicken raising, two-cut ramulus mori is high in yield and low in collection cost, and feed cost can be greatly reduced. According to the method, silage conditions are optimized for ramulus mori raw materials, firstly, bacterial strains are screened, a bacterial strain XMS03 and a bacterial strain XMS01 are selected for silage of the two-cut ramulus mori, and the two-cut ramulus mori fermented feed is obtained. The method effectively improves the ensiling efficiency of the ramulus mori, assists the ensiling of the two-cut ramulus mori by optimizing an auxiliary agent and adding cellulase and molasses, improves the quality of the ramulus mori ensiling feed, effectively improves the application range of the waste two-cut ramulus mori, can change wastes into valuables to the greatest extent, and meanwhile, due to the fact that the used raw material is the two-cut ramulus mori, the ensiling efficiency of the ramulus mori is greatly improved. Compared with the whole-plant ramulus mori reported in the prior art, the method is simpler in obtaining mode and lower in cost, and compared with the whole-plant ramulus mori reported in the prior art, the nutritional ingredients of the fermentation substrate are more stable, and the application range of the two-cut ramulus mori is widened.

The invention relates to the technical field of microorganisms, in particular to pediococcus pentosaceus for degrading silage fumonisins and application of the pediococcus pentosaceus. The pediococcus pentosaceus is preserved in the General Microbiological Culture Collection Center of the China Committee for Culture Collection of Microorganisms, and the preservation number of the pediococcus pentosaceus is CGMCC No. 28710. The pediococcus pentosaceus is high in growth rate, high in acid production efficiency, good in acid resistance and salt resistance, capable of well utilizing different types of carbon sources for fermentation, high in adaptive capacity and free of virulence genes commonly having toxic effects on livestock, the pediococcus pentosaceus serves as a pasture silage additive, the fermentation type is homotype fermentation, and the application range is wide. The pH value of the silage can be rapidly reduced, generation of ammoniacal nitrogen is reduced, the content of fumonisins is efficiently reduced, the fermentation quality of the silage is improved, and wide application prospects are achieved.

The invention discloses a mycotoxin degrading bacterium (Lactobacillus plantarum) R4-30 and application thereof, the strain is preserved in the China Center for Type Culture Collection, the preservation number is CCTCC No: M2018437, and the strain is obtained by screening in Guangxi sugarcane tail leaf silage. The strain can inhibit the growth of aspergillus flavus and fusarium graminearum, so that the production of mycotoxin is reduced, and the mycotoxin can be degraded. The aflatoxin B1 degradation rate of the strain is as high as 91.21% when the bacterial concentration is 12 * 10 < 8 > cfu / ml, the pH value is 2 and the culture time is 16 days; when the bacterium concentration is 3 * 10 < 8 > cfu / ml, the pH value is 6 and the culture time is 12 days, the zearalenone degradation rate is as high as 94.56%; when the bacterial concentration is 12 * 10 < 8 > cfu / ml, the pH value is 2 and the culture time is 16 days, the degradation efficiency of AFB1 and ZEN in the mango peel fermented feed is remarkably improved, the degradation rates of AFB1 and ZEN under the conditions reach 91.2% and 58.16% respectively, the nutritional quality is high, the fermentation quality is good, chemical additives are not needed, and the method is suitable for green detoxification treatment of agricultural products and feed.

The invention belongs to the technical field of feed conveying, particularly relates to a silage aggregate conveying device and method, and aims to solve the problem that stable operation of a conveying belt is affected due to uneven load on the conveying belt during bearing when caked silage is conveyed, the silage aggregate conveying device comprises a tool bottom plate, and two conveying plates are fixedly connected to the tool bottom plate; a plurality of round holes are formed in the two sides of the two conveying plates, and the interiors of the two opposite round holes are connected with the same rotating shaft through bearings; the conveying belt is in transmission connection with the exteriors of the multiple rotating shafts, and the conveying belt is used for conveying the silage; and the conveying motor is arranged on one side of one conveying plate. The silage collecting and conveying device and method have the advantages that caked silage irregular in shape and inconsistent in height can be flatly laid and disassembled, so that the conveying belt is uniform in bearing stress, and stable operation of the conveying belt is improved.

The embodiment of the invention discloses an energy-saving control method and device of a silage harvester and the silage harvester, and belongs to the technical field of equipment control. The silage harvester comprises a control handle, an engine and hydraulic equipment, and the energy-saving control method of the silage harvester comprises the following steps: determining an energy-saving mode type of the silage harvester in response to a received energy-saving mode request; determining a real-time opening value of the control handle; under the condition that the energy-saving mode is an operation energy-saving mode and the real-time opening value of the control handle is not a positive value, the real-time rotating speed of the engine is adjusted to the preset minimum rotating speed; when the energy-saving mode is an operation energy-saving mode and the real-time opening value of the control handle is a positive value, the real-time rotating speed of the engine is adjusted to the preset working rotating speed; and under the condition that the real-time rotating speed of the engine is the preset working rotating speed, the displacement current of the hydraulic equipment is adjusted according to the power of the silage harvester.

The invention relates to the technical field of agriculture, in particular to a method for improving silage fermentation quality based on biochar regulation and control, which comprises the following steps: fermenting a silage raw material added with biochar and cane sugar in a closed environment, the addition amount of the biochar being not less than 2% of the fresh weight of the silage raw material; the addition amount of the sucrose is not less than 2% of the fresh weight of the silage raw material; the fermentation days are more than or equal to 30 days, the pH value of the silage is less than or equal to 4.35, and the total content of lactic acid, acetic acid, propionic acid and butyric acid in the silage is more than or equal to 7.99% of the dry weight of the silage. When the biochar and the cane sugar are used as additives to prepare the silage through fermentation, on one hand, the pH value can be balanced through the addition of the biochar, the situation that the pH value is rapidly reduced possibly due to independent use of the cane sugar is avoided, further production of lactic acid in the later period is inhibited, the acidification process is effectively buffered, and continuous and stable lactic acid generation is promoted; on the other hand, the problems of increase of nutrient substance loss, promotion of generation of byproducts such as acetic acid, reduction of generation of lactic acid and the like when the biochar is independently added are avoided.

The invention belongs to the technical field of agricultural machinery, and discloses a self-propelled silage corn harvesting device which comprises a device body, a collecting box, transmission rollers and power rollers, the rear side of the device body is fixedly connected with the collecting box, and the transmission rollers are symmetrically mounted on the left side and the right side of the device body; the power rollers are symmetrically installed on the left side and the right side of the collecting box, a standing pedal is fixed to the rear side end of the collecting box through bolts, a handrail is fixed to the top end of the collecting box, and a feeding mechanism is arranged at the front end of the device body. According to the self-propelled harvesting device for silage corn, silage corn stalks can be guided and fed more effectively by arranging the feeding mechanism, the roots of the lower ends of the corn stalks are cut off synchronously in the feeding process, operation is easy, the corn stalks are further cut and smashed in the backward conveying process in cooperation with the straw conveying mechanism, and the corn stalks can be harvested more effectively. The operation efficiency is high, the feeding mechanism is in linkage with the straw conveying mechanism, power source arrangement is reduced, and the cost and the failure rate are reduced.

The invention discloses application of bacillus subtilis Z-14 in prevention of spoilage of silage corn straws, and relates to the technical field of whole-plant corn straw silage. According to the invention, a bacillus subtilis strain Z-14 is screened, and the bacillus subtilis strain Z-14 has significant broad-spectrum inhibition of pathogenic fungi and activity of pathogenic bacteria, secretes protease, amylase, cellulase and other digestive enzymes, effectively inhibits the number of bacteria, fungi and escherichia coli in the silage corn straw, accelerates the reduction of the pH value of the silage corn straw, and improves the yield of the silage corn straw. The content of aflatoxin B1 in the silage corn is obviously reduced, the silage quality is improved, a foundation is laid for effectively inhibiting the spoilage of the silage corn straw, and the silage microbial additive has huge application potential.

The invention discloses a compound bacterium enzyme preparation for ensiling and application of the compound bacterium enzyme preparation, and belongs to the field of bacterium enzyme compound preparations. The bacterial enzyme preparation disclosed by the invention comprises lactobacillus plantarum, lactobacillus buchneri, cellulase and xylanase, has the effects of improving the fermentation quality of silage, promoting the improvement of the organism immunity and the anti-stress capability of ruminants and the like, and has wide market value.

The invention discloses a planting method for overcoming continuous cropping obstacles of silage corn, which solves the problems of soil degradation and diseases and insect pests caused by continuous cropping by integrating soil physical remediation, chemical remediation, biological remediation, microbial community regulation and ecological intercropping technologies. The core technology content comprises the steps that deep ploughing is combined with organic matter and a biochar modifier to repair the soil structure, a compound microbial agent is sprayed to inhibit pathogenic bacteria, leguminous green manure and commercial crop rape are used for improving nitrogen circulation and reducing the autotoxicity effect every two years, and a precise fertilization management technology is matched. After the scheme is implemented, the soil health condition is remarkably improved, the silage corn yield is remarkably increased, and good ecological and economic benefits are achieved.

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 corn seeding devices, and particularly relates to an intelligent silage corn seeding and seedling uniformizing integrated device which comprises a rack, a connecting plate is fixedly connected to one side of the rack, a plurality of threaded mounting holes are formed in the connecting plate, rollers are rotatably arranged at the bottoms of the two sides of the rack, and the rollers are rotatably arranged on the rack. A multi-position seeding mechanism is also arranged on the rack; the multi-position seeding mechanism comprises a storage box fixedly connected to the rack, and a plurality of mounting plates are transversely arranged on the front end surface of the storage box and are in sliding connection with the front end surface of the storage box. By utilizing the multi-position seeding mechanism, the distance between two adjacent pits in the same row can be controlled according to the growth characteristics of seeds while the same-row multi-direction seeding is realized, so that the distance between the two adjacent pits is in a reasonable range, and the situation that roots of adjacent plants grab soil nutrients and moisture in the same area due to the too small distance is avoided; and the situation that the spacing between adjacent plants is too large, so that subsequent fertilization and other operations are not facilitated is also avoided.

The present disclosure relates to Lactiplantibacillus plantarum EL6 for increasing the flavonoids content, and a use thereof, and belongs to the technical field of microbial feeds. The present disclosure is intended to solve the problem that there is no special lactobacillus agent for increasing the flavonoids content during silage fermentation in the prior art. The Lactiplantibacillus plantarum EL6 in the present disclosure is a Gram-positive bacterium, which allows glucose facultative fermentation and has advantages such as acid resistance and high growth rate. In addition, the Lactiplantibacillus plantarum EL6 has an ability to allow the biotransformation of flavonoids, and can significantly increase a content of flavonoids in Medicago silage and promote the release and transformation of bound flavonoids. The Lactiplantibacillus plantarum EL6 can improve a fermentation quality of silage, and has advantages such as low cost, safety, reliability, and easy utilization.

The present disclosure relates to Lactiplantibacillus plantarum for degrading tannins and saponins, and a use thereof. The present disclosure is intended to solve the problem that the existing silage has a low utilization rate due to anti-nutritional factors such as tannins and saponins. The present disclosure provides Lactiplantibacillus plantarum P91 with an accession number of CGMCC No. 27567, which has acid resistance, a high growth rate, a strong carbon source-utilizing ability, and an excellent comprehensive acid-production ability, and can reduce a pH, well improve the palatability of silage, and reduce anti-nutritional factors in silage. Therefore, the present disclosure can effectively solve the problem that a silage raw material has a high content of anti-nutritional factors such as tannins and saponins, and overcome the adaptability problem of a lactobacillus to a raw material, thereby improving an activity of the lactobacillus and a quality of silage fermentation.

The utility model discloses an ensiling additive double-spraying device and an ensiling machine, the double-spraying device is provided with two spraying systems for spraying a diluted additive and a concentrated additive respectively, so that the large-dose spraying requirement of the diluted additive can be met, and the small-dose spraying requirement of the concentrated additive can also be met; the two spraying systems are connected through the first switch valve, when the first switch valve is controlled to be closed, the two spraying systems are separated from each other, independent spraying of a dilution type additive and a concentration type additive can be achieved, and when the first switch valve is controlled to be opened, the two spraying systems are communicated. Therefore, mixed spraying of a diluted additive and a concentrated additive can be achieved, the device is suitable for dry feed which requires spraying of a concentrated solution additive to improve fermentation and needs to increase moisture, and therefore the requirement for spraying various additives can be met.

The utility model discloses an automatic header profiling device which comprises a header assembly and a detection body arranged on the header assembly. The detection main body comprises a detection shell, a profiling structure which is hinged to the lower end part of the detection shell, is used for being attached to the ground and swings relative to the detection shell along with the change of the ground, and a flexible structure which is connected with the free end of the profiling structure and the detection shell and is used for fixing the maximum distance between the free end of the profiling structure and the detection shell; the profiling sensor is arranged in the detection shell, and the knuckle bearing assembly is connected with the end, close to the detection shell, of the profiling structure and the profiling sensor and used for transmitting the angle variation of the profiling structure swinging relative to the detection shell to the profiling sensor. The profiling sensor does not bear the acting force applied by the profiling structure any more, and the service life of the profiling sensor is long. In addition, the utility model further discloses a silage maize harvester comprising the header automatic profiling device.

The invention discloses bacillus subtilis, a method for preparing yellow corn silage feed under a strong alkali condition and a product thereof, and belongs to the technical field of microorganisms. The technical problem to be solved is that the survival rate of the existing bacillus subtilis is lower than 30% under the strong alkali condition of pH 9-11, and the existing bacillus subtilis cannot normally grow and propagate. The preparation of the yellow corn silage feed under a strong alkali condition needs additional pH adjustment, the process is complex and the cost is high; the crude protein content of the existing yellow corn silage feed is only 3-5%, and the requirements of livestock cannot be met. According to the technical scheme, the strong-alkali-resistant bacillus subtilis is provided, the preservation number is CGMCC No.36677, the survival rate of the strain is larger than or equal to 80% under the condition that the pH is 9-11, the straw degradation rate is larger than or equal to 25%, no waste water is generated when the strain is used for preparing the yellow silage feed, the cost is reduced compared with an existing technology, the protein content is increased by 50%-80%, palatability is good, and the method is suitable for large-scale straw resource utilization and feed protein production.