100 results about "Alfalfa seed" patented technology

The invention relates to the field of alfalfa planting, in particular to a synthetic flora for breaking dormancy of alfalfa seeds and promoting growth of seedlings and application of the synthetic flora. The invention provides a strain of sinorhizobium meliloti NFB5, the preservation number is CGMCC NO.33618, and the sinorhizobium meliloti NFB5 can break dormancy of alfalfa seeds and promote growth of alfalfa seedlings and root systems. According to the method, sinorhizobium meliloti NFB5 is compounded with one or two of screened salt-tolerant brevibacillus brevis EB3 and bacillus PS06 to obtain a synthetic flora, and alfalfa seeds are soaked in a bacterial solution containing the synthetic flora, so that the number of hard seeds can be remarkably reduced, the germination rate and germination potential of the seeds can be remarkably improved, and the germination rate of the seeds can be remarkably increased. Therefore, the synthetic flora can well break the dormancy of the alfalfa seeds, does not cause loss to the seeds, and does not reduce the quality of the seeds. In addition, the synthetic flora also has a significant growth promoting effect, and can significantly improve the plant height, root length, stem weight and root weight of seedlings.

The invention discloses a sporosarcina sp. Strain RH34 and an application of the sporosarcina sp. Strain RH34 and the application of the sporosarcina sp. Strain RH34. The sporosarcina strain RH34 is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation address is No.3, yard 1, Beichen West Road, Chaoyang District, Beijing, the preservation date is December 25, 2024, and the preservation number is CGMCC NO.33199. The sporosarcina strain RH34 can be used for preparing the sporosarcina strain RH34. The alfalfa rhizosphere microorganism sporosarcina strain RH34 is separated from alfalfa roots in salinized soil, and has the functions of dissolving organic phosphorus, dissolving inorganic phosphorus, producing biological membranes, producing siderophores, producing IAA and producing ACC deaminase. Seed soaking and germination under salt stress can obviously improve the germination index of alfalfa seeds. The growth condition of alfalfa seedlings can be improved under salt stress.

The invention belongs to the technical field of agricultural biology and soil remediation, and particularly relates to a mining area soil remediation method. The method comprises the following steps: performing soil reconstruction on a mining area to obtain reconstructed soil with a multi-layer structure; the reconstructed soil of the multi-layer structure sequentially comprises a reconstruction layer, a blocking layer and a filling layer from top to bottom. The reconstruction layer comprises low-carbon coal gangue and surface soil, the particle size of the low-carbon coal gangue is smaller than or equal to 8 mm, and the mass ratio of the low-carbon coal gangue to the surface soil is (1-2): (1-2); the blocking layer comprises a grouting mixture of fly ash and cement, and the mass ratio of the fly ash to the cement is smaller than or equal to 1.8: 1; the filling layer comprises blocky waste coal gangue; and then planting alfalfa on the reconstructed soil with the multilayer structure. According to the method, recycling of the waste coal gangue and reconstruction of the mining area soil are realized, so that smooth germination and healthy growth of alfalfa seeds on the reconstructed soil are ensured, mining area soil remediation is realized, and an economical and feasible method is provided for mining area soil remediation.

The invention relates to the technical field of watering control, in particular to an intelligent watering control method for alfalfa seed production, which comprises the following steps: collecting humidity data of current soil through a soil humidity sensor, analyzing a soil humidity state and generating a soil humidity result; evaluating the required water quantity according to the soil humidity result, and adjusting the output quantity of a water pump to obtain an adjusted watering plan. The current soil humidity state of the farmland is obtained by monitoring the soil humidity in real time, so that the output quantity of the water pump is dynamically adjusted, intelligent regulation and control of the watering plan are achieved, the irrigation accuracy is improved, and waste and insufficiency of water resources in the watering process are avoided; meanwhile, the watering plan is optimized by means of air temperature and rainfall data, so that the irrigation action is closely combined with the actual weather condition, the irrigation timeliness is improved, and the negative effects caused by adverse weather conditions are reduced.

Provided are a Medicago sativa SNP molecular marker combination and a use thereof. The SNP molecular marker combination consists of 61351 SNP molecular markers. The physical positions of the 61351 SNP molecular markers are determined by sequence alignment on the basis of the Medicago sativa reference genome ZM-4 alfalfa genome. The SNP molecular markers have good site specificity, strong versatility, and high polymorphism and can effectively discriminate Medicago sativa germplasms from different sources. A Medicago sativa genome-wide liquid-phase gene chip is prepared from the SNP molecular markers, and can be used for genetic diversity assessment of Medicago sativa germplasm resources, genetic map construction and functional gene mapping, genome-wide association study, etc., providing an important tool and technical support for Medicago sativa molecular design breeding and variety authenticity identification, and achieving important significance for high-quality development of the alfalfa seed industry in China.

The invention discloses a method for identifying and counting alfalfa seed pods with different maturity degrees based on RHE-DETR, and belongs to the technical field of target detection. The method comprises the following steps: acquiring alfalfa seed pod images under different illumination conditions and shielding conditions in a field; labeling software is used for labeling the collected images, and an alfalfa seed pod data set is constructed and divided; the model is improved, and a lightweight target detection model RHE-DETR for a small target is obtained; inputting the constructed alfalfa seed pod data set into an RHE-DETR target detection model for training to obtain a weight file of the model after the alfalfa seed pod data set is trained; and deploying a weight file trained by the RHE-DETR target detection model to an edge computing platform to detect a field alfalfa seed pod image to obtain a real-time tracing frame, confidence and counting result of the alfalfa seed pod. According to the method, the conditions of error detection and missing detection in a complex field environment are reduced, the accuracy of identifying and counting the maturity of the alfalfa seed pods is improved, and meanwhile, the identifying and counting time is also shortened.

The invention relates to the technical field of ecological planting, in particular to a planting method for improving the biological activity of citrus orchard soil by interplanting california burclover. The planting method comprises the following steps: (1) sowing california burclover seeds in a citrus garden in late October; (2) when the california burclover enters a branching period, applying a fertilizer; (3) naturally decomposing after the california burclover plant is withered; the california burclover seeds naturally fall into the soil. According to the planting method, the fertility of soil in the citrus orchard can be improved, water and soil are kept, microclimate is adjusted, and environmental pollution is reduced; production cost is reduced, and extra income is increased; the income increase of farmers is promoted. And a basis is provided for ecological and sustainable development of the citrus orchard.

The invention discloses an alfalfa planting management method based on high-altitude saline-alkali soil, and relates to the technical field of agricultural cultivation, and the method comprises the following steps: S1, an irrigation water preheating step: enabling irrigation water to flow through a deep-color pipeline laid on the ground surface for solar preheating; the preheated irrigation water is used for irrigating the field in a drip irrigation mode, and the irrigation water amount is determined according to the initial salt content of the soil and the target salt leaching depth. According to the alfalfa planting management method based on the high-altitude saline-alkali soil, through combination of irrigation water preheating treatment and precise drip irrigation, the contradiction between salt leaching operation and ground temperature keeping in a high-altitude area is effectively solved. Preheated irrigation water avoids soil temperature sudden drop caused by cold water irrigation, the layered covering technology synergistically inhibits water evaporation and salt upward returning, meanwhile, the soil temperature is kept stable, a proper water temperature and salt environment is created for alfalfa seed germination, and therefore the seedling emergence uniformity and the seedling survival rate are improved.

The invention relates to a streptomyces sp. Strain EC15 and an application of the streptomyces sp. Strain EC15. The streptomyces strain EC15 is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation address is No.3, yard 1, Beichen West Road, Chaoyang District, Beijing, the preservation date is December 25, 2024, and the preservation number is CGMCC NO.33195. The streptomyces strain EC15 has the advantages that the streptomyces strain EC15 can be used for preparing the streptomyces strain EC15; the strain has the functions of dissolving organic phosphorus, dissolving inorganic phosphorus, producing a biological membrane, producing an iron carrier, producing IAA and producing ACC deaminase. The EC15 bacterial liquid is used for soaking seeds under the stress of 200 mmol / L and 250 mmol / L NaCl, so that the germination potential, the germination rate, the germination index, the radicle length, the germ length and the fresh weight of group seedlings of the alfalfa seeds can be obviously improved. After the EC15 strain is inoculated, under the stress of 200 mmol / L NaCl, the plant height, stem diameter, leaf area and overground part fresh and dry weight of alfalfa plants can be obviously improved.

The invention discloses an alfalfa pod shell rapid smashing device, and relates to the technical field of smashing devices, the alfalfa pod shell rapid smashing device comprises a fixing plate, a rack, a lifting unit, a grinding bin, a grinding plate, a spiral through groove and an extrusion unit; the lifting plate is driven by the extrusion unit to ascend and descend; a motor; and the rotating pressing disc is located over the grinding plate, and the outer diameter of the rotating pressing disc is smaller than that of the grinding plate. According to the device disclosed by the invention, the spiral part of an alfalfa pod is clamped into the spiral through groove, so that the rotary pressure plate generates shearing force on the hull of the alfalfa pod, the hull of the alfalfa pod is split, seeds in the pod are separated from the hull, and meanwhile, the seeds are relatively small in size and fall onto the fixed plate from the spiral through groove; and then the lifting unit drives the grinding bin to move upwards, so that the extrusion force of the capsule shells of the fruit pods, which is applied by the rotary pressing disc, is increased, and along with the continuous rotation of the rotary pressing disc, the capsule shells of the fruit pods can be ground, so that the capsule shells are ground and crushed.

The invention relates to the technical field of seed treatment, and provides a pelleting method for alfalfa seeds used in a coastal saline-alkali district, and the alfalfa seeds sequentially comprise seeds, a hormone layer, a first oxygenation breathable layer, a nutrition layer, a second oxygenation breathable layer and an outer protection layer from inside to outside; the raw material of the hormone layer comprises gibberellin; the raw materials of the first oxygen-increasing breathable layer comprise an adhesive and a functional material; the raw material of the second oxygenation breathable layer comprises a functional material; the functional material comprises gypsum and / or calcium peroxide; the raw material of the outer protection layer comprises organic acid. By means of the technical scheme, the problem that the emergence rate of alfalfa seeds is low due to the fact that saline-alkali soil in a saline-alkali area is large in viscosity and poor in air permeability in the prior art is solved.

The invention discloses a seed treatment method for improving seed germination and planting efficiency of medicago sativa under drought conditions, and belongs to the field of seed treatment. According to the method for promoting seed germination, novel carbon nano quantum dots are used as an initiator to treat medicago sativa seeds; after the alfalfa seeds are subjected to initiation treatment, the drought resistance of the alfalfa seeds can be remarkably improved, seed germination and seedling growth can be promoted, the germination rate can be increased by 23%, the germination potential can be increased by 34%, the plant height can be increased by 90%, the biomass can be increased by 70%, meanwhile, the antioxidant enzyme activity can be remarkably improved by 33.1%, and the malondialdehyde content can be remarkably reduced by 26.43%. By applying the seed priming method, the planting efficiency can be improved, and meanwhile, the planting cost is reduced.

The invention discloses a method for increasing the yield of alfalfa seeds by using a growth regulator. The method comprises the following steps: (1) selecting a seed field production area; (2) land parcel selection; (3) soil pretreatment before sowing; (4) sowing; (5) field management; (6) harvesting and drying; in the step (5), a compound sodium nitrophenolate solution is uniformly sprayed in the bud stage, the dosage is 200 L / hm < 2 >, and the mass concentration of the compound sodium nitrophenolate solution is 5.0-6.0 ppm. The hole sowing machine is adopted to accurately control the sowing depth and the sowing quantity, the sowing density of an alfalfa seed field is strictly controlled, the optimal plant growth regulator is innovatively matched for application, and the alfalfa seed yield is effectively improved.

The invention relates to the technical field of alfalfa cultivation, in particular to an alfalfa seed tedding device which comprises a machine body, a feeding hopper and a discharging port. An output shaft of a servo motor can drive a reciprocating lead screw to rotate, the reciprocating lead screw penetrates through and is in threaded connection with a reciprocating sliding sleeve, and the reciprocating sliding sleeve is in sliding connection with the machine body; due to the fact that the reciprocating screw rod drives the C-shaped frame to move in a reciprocating mode through the reciprocating sliding sleeve when the reciprocating screw rod rotates, and the C-shaped frame drives the scraping plate to move together through the telescopic rod, the first sliding rods fixedly connected to the two sides of the scraping plate are inserted into the inclined grooves, and the inclination angle of the inclined grooves is the same as that of the drying plate. According to the clover seed tedding device, the inclined groove is formed in the bottom of the scraping plate, the scraping plate can drive the first sliding rod to slide along the inclined groove when moving, the first sliding rod can drive the scraping plate to enable the bottom face of the scraping plate to be attached to the surface of the airing plate all the time, and clover seeds can be scraped back and forth by the scraping plate and evenly spread on the airing plate through back-and-forth movement of the scraping plate, so that the clover seeds are tedded more evenly.

The invention relates to the technical field of biological enzymes, and discloses serine protease as well as a preparation method and application thereof. Wherein the amino acid sequence of the serine protease is as shown in SEQ ID NO. 1 or SEQ ID NO. 2. The serine protease provided by the invention has stable activity at different temperatures, can better maintain the activity and efficacy in practical application, and can still effectively inhibit the formation of a biological membrane or remove a mature biological membrane under the condition of variable temperatures. Experimental results show that the serine protease can obviously inhibit the formation of the methicillin-resistant staphylococcus aureus biological membrane and remove the methicillin-resistant staphylococcus aureus biological membrane; no antibacterial activity is found, so that pathogenic bacteria are not easy to generate drug resistance; meanwhile, toxicity is avoided, and the germination rate and bud length of alfalfa seeds are not affected. Therefore, the serine protease is safe and reliable in application in the food industry, and has great advantages in food application.

The invention relates to the technical field of seed pelleting processing, in particular to an alfalfa seed pelleting material and a preparation method of alfalfa seed pellets. Through scientific compatibility and synergistic effects in a pill coating material system, the water-retaining agent guarantees a moisture basis, the microbial agent constructs a biological barrier and promotes conversion, the inorganic nutrients provide material support, and the bioactive substances stimulate intrinsic potentials and synergistically act on the alfalfa seed germination physiological process, so that the alfalfa seed germination rate is increased, and the alfalfa seed germination rate is increased. Finally, the technical effects of remarkably promoting the germination rate and uniformity of the seeds and improving the nodulation rate are achieved, and a solid foundation is laid for developing high-quality and high-yield alfalfa seeds.

The invention belongs to the technical field of agricultural planting, and provides a method for interplanting triticale and alfalfa in barren land, which comprises the following steps: S1, selecting triticale and alfalfa varieties suitable for local environment; s2, in the period from September to October, soil deep ploughing is conducted on the planting land parcel by 25-30 cm, and triticale seeds and alfalfa seeds are evenly mixed according to the proportion of 7: 1; s3, harvesting triticale in different periods according to utilization purposes, and continuing to reserve alfalfa for growth after harvesting; s4, performing irrigation, disease and pest monitoring, fertilization, weeding and cutting management on the feed triticale and alfalfa; according to the method, crop varieties suitable for the local environment are selected, soil deep ploughing and seed treatment are conducted, reasonable sowing and fertilization are conducted, and fine field management measures are taken, so that efficient utilization of the barren land is achieved; according to the method, the utilization rate of land and the yield of crops are increased, diseases and insect pests are reduced through interplanting and fine management, the soil structure is improved, and the soil fertility is improved.

The present invention discloses a SNP molecular marker combination of alfalfa and its application. The SNP molecular marker combination consists of 61,351 SNP molecular markers. The physical positions of the 61,351 SNP molecular markers are determined by sequence alignment based on the alfalfa reference genome ZM-4 alfalfa genome. The SNP molecular marker sites of the present invention have good site specificity, strong universality, and high polymorphism, and can effectively distinguish alfalfa germplasms from different sources. Preparing the SNP molecular markers of the present invention into a whole-genome liquid gene chip for alfalfa can be used for genetic diversity assessment of alfalfa germplasm resources, construction of genetic maps and functional gene mapping, genome-wide association analysis, etc., providing important tools and technical support for molecular design breeding of alfalfa and identification of variety authenticity, and having important significance for the high-quality development of the alfalfa seed industry in China.

The invention discloses a training method of a model for identifying the maturity of alfalfa seeds and an identifying method for the maturity of the alfalfa seeds. The training method comprises the following steps: acquiring multispectral cube image data; obtaining a prediction result output by the to-be-trained model; performing first-stage training on the to-be-predicted model; respectively obtaining feature distribution of different feature layers of the models of the source domain and the target domain after the first-stage training, and calculating the difference between the source domain and the target domain; on the basis of the difference between the source domain and the target domain, calibrating the layer statistics of the distribution characteristics of the recorded data in the model after the first-stage training to obtain a calibrated model; unfreezing a part of layers of the calibrated model, selecting hyper-parameters, and performing second-stage training on the calibrated model through a target domain to obtain the model for identifying the maturity of the alfalfa seeds. According to the method, the model capable of accurately identifying the alfalfa seed maturity can be trained, the alfalfa seed maturity can be losslessly identified based on the trained model, and the identification accuracy is high.

The application discloses a method for repairing heavy metal contaminated soil by combining plants and microorganisms, and comprises the following steps: planting alfalfa seeds in heavy metal contaminated soil; inoculating lead and zinc copper resistant bacteria L1 into the heavy metal contaminated soil after 30 days when the seeds germinate; and harvesting the alfalfa after the growth period of the alfalfa ends. The application has a very obvious effect on adsorbing lead, zinc and copper heavy metals in the soil. The plant raw material is low in cost, the preparation process is simple and easy to operate, and the bacterial liquid is easy to culture. The application has small investment for removing heavy metals and no secondary pollution.

The invention discloses sowing and sand covering integrated equipment and method for alfalfa saline-alkali soil, relates to the technical field of sowing and sand covering, and completes sowing and sand covering of alfalfa through the synergistic effect of a rack, a seed bin, a sowing wheel, a sowing assembly, a driving assembly and a sand covering assembly. The seeder has the beneficial effects that the seeding assembly and the sand covering assembly are simultaneously driven by the driving assembly, so that the rack can drive the sand covering assembly to cover sand while driving the seeding assembly to sow in the process of moving along with the seeding wheel, and a driving source is reduced; the rotary tillage mechanism is used for ditching, the adjusting mechanism is used for sowing, sand covering is completed through the sand falling roller, the two working procedures of sowing and sand covering can be completed through one-time movement of the equipment, and the production cost is saved; and gullies with different depths are formed through the rotary tillage mechanism, so that the seeding pipe can be put into the gullies for seeding, and the seeding density of the alfalfa seeds is adjusted through the adjusting mechanism, so that the equipment can be used for seeding the optimal quantity of alfalfa seeds on the saline-alkali soil.

The invention discloses an alfalfa seed preliminary cleaning and shelling processing device in the technical field of alfalfa seed processing, which comprises a preliminary cleaning and shelling module and a dust suction module mounted on the preliminary cleaning and shelling module, and further comprises a suspension type screening unit arranged below a discharge port of the preliminary cleaning and shelling module, the suspension type screening unit is used for bearing alfalfa materials subjected to preliminary cleaning and conducting secondary screening, swing supporting assemblies are symmetrically arranged on the two sides of the suspension type screening unit, and the swing supporting assemblies are used for movably suspending the suspension type screening unit on the equipment frame; the eccentric linkage module is in transmission connection with a driving shaft of the preliminary cleaning shelling module, and the eccentric linkage module is used for driving the suspension type screening unit to do reciprocating arc swing with the swing supporting assembly as a support; the problems that according to an existing alfalfa preliminary cleaning device, due to the fact that screen holes are fixed, fibers are wound and blocked, shelling is not thorough due to the fact that a kneading effect is lacked, and the seed loss rate is high due to unclear material layering are solved.

The invention discloses a method for accelerating drying and dehydration of alfalfa, and belongs to the technical field of alfalfa seed breeding. The method comprises the following steps that 40-50 days after the full-bloom stage of alfalfa, 50-150 mL of 30% nitra.nicotian.atrazine dispersible oil suspending agent is used per mu, 25-35 L of water is added, and leaf spraying is conducted. According to the method provided by the invention, the drying ripening agent is sprayed before alfalfa seeds are harvested, so that green leaves of alfalfa are withered and yellow and fall off, the seeds are relatively consistently ripe, the defoliation rate and the relative water loss rate of stems and leaves of alfalfa are remarkably increased, the drying time of alfalfa is shortened, and the seed yield and the germination rate are increased.

The invention discloses a production regulator for planting alfalfa and a mixing device for preparing the production regulator, belongs to the technical field of plant growth regulators, and aims to solve the problems of more raw materials and higher cost of the conventional alfalfa growth regulators. The gibberellic acid, the diethyl aminoethyl hexanoate and the brassinolide in the production regulator can effectively promote growth and development of the alfalfa, so that the alfalfa can reach a higher growth level in a short time, the amino acid water-soluble fertilizer provides rich nutrition for the alfalfa, healthy growth and yield increase of the alfalfa are facilitated, and after the production regulator is used, the growth rate of the alfalfa is increased. The yield of the alfalfa can be predicted to be increased by 10%-15%, the production regulator is simple in formula, low in cost and simple in use method, the diluted regulator only needs to be uniformly sprayed on leaves of the alfalfa when the alfalfa grows to about 30 cm, and the economic value can be remarkably increased.

The present application relates to the technical field of alfalfa planting, and discloses a phosphorus application quota distribution method for improving alfalfa seed yield, and the specific process is as follows: first, preparing the planting plot, cleaning the plot weeds in advance, leveling the land, installing the underground drip irrigation system, then, sowing and applying base fertilizer, applying the base fertilizer when finishing the land, planting the test variety by using the wide-narrow row mulching sowing method, uniformly dripping seedling water the next day to ensure uniform seedling emergence, setting the total irrigation amount and the total phosphorus application amount per hectare, and through the water and phosphorus management mode of implementing irrigation and phosphorus application quota distribution, the water and phosphorus are proportionally controlled to carry out underground drip irrigation in the growth periods of the branching stage, the squaring stage, the flowering stage and the podding stage of alfalfa, the technical scheme provided by the present application realizes the synergistic effect of differentiated irrigation amount and phosphorus application amount quota distribution in different growth periods through setting different irrigation and phosphorus application quota distribution modes, and thus improves the alfalfa seed yield and the water and phosphorus utilization efficiency.

The utility model relates to the technical field of alfalfa seed impurity removing and screening, and discloses an alfalfa seed impurity removing and screening device which comprises a first screening mechanism, and the bottom of the first screening mechanism is fixedly connected with a second screening mechanism. The first screening mechanism comprises a first screening box, a funnel is arranged at the top of the first screening box, blowing equipment is installed on the left side of the first screening box, a ventilation opening is formed in the right side of the first screening box, and a ventilation net frame is fixedly connected to the right side of the first screening box. According to the alfalfa seed impurity removing and screening device, alfalfa seeds evenly fall down, light impurities in the alfalfa seeds are blown to the right side through the blowing equipment, blown into the ventilation screen frame through the ventilation openings and fall down from the bottom of the ventilation screen frame, and then the situation that the pouring amount cannot be controlled, for example, too many alfalfa seeds are poured at a time; therefore, the problem that the alfalfa seeds with the weight lower than that in an ideal state cannot be effectively blown out by the air blowing equipment is solved.

The invention provides a method for promoting nodulation and growth of alfalfa, which relates to the field of biological breeding, and comprises the following steps: selection and preservation of test materials, selection of breeding, preparation of culture solution, seed treatment, seed germination test, seed germination test, data analysis, and single factor variance statistical analysis by SPSS23.0 to analyze the fresh and dry weight, length, root index, etc. of seeds, seedling growth index, chlorophyll content determination, relative conductivity, and physiological index of seeds. The invention uses alfalfa "Ju Neng 551" seeds as test materials to explore the effects of different concentrations (0.6 g / L ‑1 , 0.9gL ‑1 , 1.2gL ‑1 , 1.5gL ‑1 )The effects of combined inoculation of Cp2‑EPS and rhizobia (R) on seed germination and seedling growth of alfalfa were studied. It was found that combined inoculation of 0.6-1.5 g / L Cp2‑EPS and rhizobia could effectively promote the growth and root nodulation of alfalfa seedlings. Further comprehensive analysis by Topsis showed that combined inoculation of 1.2 g / L Cp2‑EPS and rhizobia had the best effect on promoting the growth of alfalfa seedlings.

The invention discloses alfalfa seed propagation equipment and method, and belongs to the field of leguminous plant planting, the alfalfa seed propagation equipment comprises a base and further comprises a diffusion assembly, the diffusion assembly comprises a fixing plate fixedly installed on the upper portion of the base, and a discharging frame is fixedly installed on the lower portion of the base; a discharging opening communicated with the discharging frame is formed in the fixing plate, a movable cavity is formed in the inner cavity wall of the discharging opening, a gear ring is rotationally installed in the movable cavity, a partition plate is fixedly installed on the inner wall of the gear ring, and a connecting rod is fixedly connected to the bottom of the partition plate; according to the alfalfa seeding device, alfalfa seeds can be uniformly arranged in seeding pits, and the situation that the alfalfa seeds are seeded too densely to cause intense competition and influence the growth and development of alfalfa can be avoided, so that the consistency of the spacing between planted plants can be effectively improved, and the growth of the alfalfa and the balance of light, nutrients and moisture can be effectively improved.

The invention discloses a microbial agent experiment comparison device for alfalfa planting, and relates to the technical field of microbial experiment equipment.The microbial agent experiment comparison device comprises a constant-temperature box, and a first temperature control chamber and a second temperature control chamber are arranged on the two sides of the interior of the constant-temperature box respectively; a plurality of groups of cultivation mechanisms for providing growth environments for alfalfa are arranged in the first temperature control chamber and the second temperature control chamber; a sowing mechanism for placing alfalfa seeds is laid on the top of each group of cultivation mechanism; the first temperature control chamber and the second temperature control chamber are internally provided with soil covering mechanisms for covering alfalfa seeds with soil, each soil covering mechanism comprises a plurality of bottom plates fixed in the constant-temperature box, the bottom plates and the multiple sets of culture bottles are distributed in a staggered mode, and the top of each bottom plate is slidably provided with a soil covering piece. The microbial agent experimental comparison device for alfalfa planting, disclosed by the invention, has the effects of high precision and high functionality.

The invention belongs to the technical field of seed treatment, and relates to a method for improving nickel stress resistance of alfalfa seeds and application of the method. The invention provides a method for improving nickel stress resistance of medicago sativa seeds, which comprises the following steps: (1) seed disinfection: selecting full medicago sativa seeds with uniform size, soaking the medicago sativa seeds with 75% ethanol and 5% NaClO in sequence, and flushing the medicago sativa seeds with sterile water until the medicago sativa seeds are odorless; (2) stress treatment: placing the disinfected seeds in a culture dish paved with double layers of filter paper, and adding a treatment solution to enable the nickel ion concentration to be 100-500mg / L; (3) germination culture: culturing at 25 DEG C for 10 days, and maintaining humidity by a weighing method every day to complete seed germination. According to the method, the stress resistance of the alfalfa seeds under nickel stress can be remarkably improved.