37 results about "Vegetable crops" patented technology

The invention relates to the technical field of vegetable cultivation, and discloses an automatic light supplement control method and system for vegetable cultivation, and the method comprises the steps: determining the growth state of a vegetable crop based on crop image information and a crop growth model, and judging whether to execute a light supplement strategy or not according to a solar altitude, determining a backtracking light supplementing strategy or an initial light supplementing strategy according to the occurrence frequency of the growth state in the historical light supplementing database, determining target light supplementing data of the vegetable crops according to the number of the light supplementing data, and when the initial light supplementing strategy is determined, determining the target light supplementing data of the vegetable crops based on a recurrent neural network model, and analyzing the historical light supplement record to determine a light supplement swing factor of the light supplement lamp, adjusting the target light supplement data based on the light supplement swing factor, and performing light supplement on the vegetable crops according to the adjusted target light supplement data. According to the invention, the reliability of light supplement is ensured through the crop growth model and the light supplement swing factor.

The utility model provides a vegetable crop harvester which comprises a frame, a driving mechanism arranged on the frame, a separation conveying mechanism, a root cutting mechanism and a gathering mechanism. The separation conveying mechanism is obliquely arranged on the frame, and a containing cavity is formed by the tail end of the separation conveying mechanism and the top of the rear end of the frame and used for receiving cut vegetable crops; the root cutting mechanism and the gathering mechanism are arranged at the starting end of the separation conveying mechanism, and the gathering mechanism comprises two stem holding devices which are distributed at intervals and used for gathering leaves of vegetable crops and guiding stems of the vegetable crops to a cutting area of the root cutting mechanism; an output shaft of the driving mechanism drives the root cutting mechanism and the separating and conveying mechanism, the root cutting mechanism is used for cutting stems of vegetable crops guided to the cutting area, the separating and conveying mechanism is used for separating the cut vegetable crops and conveying the vegetable crops to the containing cavity, and damage to vegetable leaves is reduced.

The invention relates to the technical field of agricultural pest prevention and control, in particular to a carrier plant system for preventing and controlling vegetable thrips and application of the carrier plant system. The invention constructs a carrier plant system of orius similis for preventing and controlling vegetable thrips, the carrier plant is wheat, the substitute food is wheat aphid, and the beneficial organism is orius similis. The carrier plant system provided by the invention continuously maintains the population quantity of orius similis in greenhouse vegetable crops, prolongs the action time of orius similis, effectively improves the biological control efficiency of pests such as thrips on target crops, and has a wide application prospect.

The invention relates to the technical field of intelligent drip irrigation, and discloses an intelligent drip irrigation system and method for a vegetable greenhouse, and the method comprises the steps: obtaining the growth information and environment information of each vegetable crop in the vegetable greenhouse, carrying out the region recognition of the vegetable greenhouse according to the growth information and environment information, and determining a region to be subjected to drip irrigation and a region not to be subjected to drip irrigation; acquiring growth characteristic parameters and historical water and fertilizer drip irrigation strategies of the vegetable crops in the to-be-irrigated area, and determining growth pathology of the vegetable crops in the to-be-irrigated area according to the growth characteristic parameters, the environment information and the historical water and fertilizer drip irrigation strategies; based on the growth pathology and the environment information, determining fertilizer components and drip irrigation amount, and determining a water-fertilizer ratio according to chemical characteristic parameters of each component of the fertilizer and the drip irrigation amount; preparing water-fertilizer drip irrigation liquid according to the fertilizer components and the water-fertilizer proportion, and performing drip irrigation of the water-fertilizer drip irrigation liquid on the to-be-drip-irrigated area according to the drip irrigation amount. Accurate irrigation is achieved, and the water and fertilizer utilization rate during irrigation of the vegetable greenhouse is increased.

The invention relates to the technical field of agricultural machinery, and provides an open field vegetable swing type intelligent inter-plant weeding device and a control method thereof, and the device comprises a plurality of weeding monomers, a sensor mechanism and a control mechanism. The sensor mechanism comprises depth cameras, laser sensors and absolute value encoders, the depth cameras are installed on the front portions of the multiple weeding single bodies, the visual field covers multiple rows of crops, and the laser sensors and the absolute value encoders are arranged on the weeding single bodies; the control mechanism is connected with the depth camera, the laser sensor and the absolute value encoder and used for processing data of the sensor mechanism, calculating the fusion height through a fusion algorithm and controlling and driving the lifting mechanism, the transverse moving mechanism and the weeding knife opening and closing mechanism to act based on the error between the fusion height and the target depth so as to achieve accurate weeding and seedling avoiding. The device can quickly avoid crops while effectively removing weeds between rows and plants, and finally realizes mechanical weed removal of open field vegetable crops which are large in bare soil proportion and easy to generate weeds.

The invention relates to the technical field of vegetable planting, and particularly discloses a liquid fertilizer supply device for vegetable planting and a supply method.The device comprises a liquid mixing box and a supply mechanism, the bottom of the liquid mixing box is connected with the supply mechanism through a liquid supply pipe, and a booster pump is arranged on the side, close to the supply mechanism, of a liquid supply valve on the liquid supply pipe; a first liquid level sensor is arranged in the liquid mixing box, a weight sensor is arranged at the bottom of the liquid mixing box, the top of the liquid mixing box is connected with at least two liquid storage boxes through liquid inlet pipes, liquid inlet valves and flow meters are arranged on the liquid inlet pipes, feeding ports are formed in the tops of the liquid storage boxes, and second liquid level sensors are arranged in the liquid storage boxes. The feeding mechanism comprises a transverse pipe, a distributing pipe, a water supply pipe and a feeding pipe. According to the invention, the pipeline structure of the feeding mechanism is improved, so that the final water supply or nutrient supply is more balanced, and the purpose of balanced growth of vegetable crops in the whole greenhouse is achieved.

The invention discloses an oilseed rape-sorghum-autumn cucumber planting method based on cooperation of oilseed rape and vegetables, and the method comprises the following steps: sowing oilseed rape in late September; in late October, when the oilseed rape grows to 3-5 leaves, transplanting the oilseed rape to a field; sowing sorghum in the middle ten days of March of the next year; in early April of the next year, when sorghum grows to a three-leaf stage, transplanting; in the middle ten days of April of the next year, harvesting oilseed rape, and then threshing; in late July of the next year, harvesting sorghum, and then threshing; sowing autumn cucumbers in early August of the next year; and harvesting autumn cucumbers from late September to mid-October. Compared with a conventional planting mode, the rape yield can be increased by 4.7%, the sorghum yield can be increased by 6.8%, the total starch content and the amylopectin content of sorghum grains can be increased by 1% and 0.7% compared with rape and sorghum crop rotation, and the income per mu can be increased by 3519 yuan, 1743 yuan and 1132 yuan compared with oil field crop rotation, sorghum single cropping and rape-sorghum relay cropping. According to the planting method, variety selection is accurate, crop rotation connection is seamless, high economic benefits are achieved, and the planting enthusiasm of farmers can be promoted.

The utility model relates to the technical field of agricultural equipment, and discloses a root vegetable crop pulling-out and cleaning mechanism which comprises a base plate, a conveying assembly arranged on the base plate, a guiding pulling-out frame set arranged at the input end of the conveying assembly and a stem and leaf cutting assembly arranged below the output end of the conveying assembly. The conveying assembly is obliquely arranged on the base plate, the conveying assembly is provided with a soil cleaning assembly on the front side of the stem and leaf cutting assembly, a transmission box is arranged above the conveying assembly, and the guiding pulling-out frame sets are arranged on the two sides of the bottom end of the conveying assembly; the conveying assembly and the stem and leaf cutting assembly are connected to the output end of the transmission box, and a feeding opening is formed in the end of the guiding pulling-out frame set in a splayed closing-up mode.

The invention discloses a novel vegetable health magnesium resistance inducer as well as a preparation method and application thereof, the main components of the vegetable health magnesium resistance inducer are trimethylglycine (GB) and magnesium oxide nanoparticles (MgONPs), and the components have the characteristics of no toxicity, harmlessness, no pollution and the like. The invention finds that the'vegetable health magnesium 'resistance inducer can activate plant hormone signals, enhance plant immunity and resist virus diseases. The composition can be sprayed to vegetable crops before the high-incidence period of vegetable virus diseases to prevent and treat virus diseases, is simple and convenient, has strong operability, and can effectively improve the broad-spectrum resistance of plants to various vegetable virus diseases. Compared with traditional pesticides, the composition is more green and safer, meets the requirements of sustainable and healthy development of agriculture, and has huge application potential.

This invention discloses a vegetable virus preventative agent and its application, belonging to the technical field of antiviral agents for vegetable diseases. The vegetable virus preventative agent includes an extract of tender willow twigs and an extract of Inonotus obliquus. The tender willow twig extract can enhance the plant's resistance to various stresses, thereby improving the antiviral ability of vegetable plants. The Inonotus obliquus extract is rich in polysaccharides, which can participate in the plant's disease defense response, synthesize polypeptides in plant cells, and have a strong ability to resist the infection and spread of various pathogens, repair cell damage, and interfere with the synthesis of viral nucleic acids and enzyme proteins, thus effectively controlling plant viruses. Treatment of vegetable seedlings with the tender willow twig extract prepared according to this invention, and treatment of plants with the Inonotus obliquus extract prepared according to this invention after destructive operations, can significantly reduce the incidence of viral diseases.

The invention belongs to the field of irrigation control methods, particularly relates to a vegetable water consumption digital management system, and aims to solve the problems that underground water overdraft is serious in facility vegetable irrigation in water resource-deficient areas such as the Hebei Province, and water consumption is low-efficiency and waste is caused by extensive traditional management modes. According to the system, a correlation model of a vegetable crop coefficient Kc and an effective accumulated temperature Ta is constructed, and in combination with a re-established crop coefficient calculation formula (Kc = ETc / ET0), a relation model of a greenhouse vegetable evapotranspiration estimated value ETc and the effective accumulated temperature Ta is deduced; the crop daily evapotranspiration is estimated by means of data of a single environment collector, the problem that water supply and demand are unbalanced in traditional irrigation decision-making methods such as experience and time sequence is solved through the model method, and irrigation water is converted from quantitative supply to on-demand supply. And a powerful technical support is provided for pressure mining of regional underground water and sustainable development of the vegetable industry.

The invention provides a soilless culture system based on a 3D printing hard degradable plastic planting groove belt, and belongs to the technical field of agricultural soilless culture equipment. The system solves the problems that in traditional soilless culture, a planting structure is unstable, nutrient solution distribution is uneven, waste liquid recovery is difficult, and intelligent precise irrigation control is lacked. According to the technical scheme, the planting groove belt is formed by splicing segmented 3D printing hard degradable plastics, the cross section of the planting groove belt is in a wave shape, and the planting groove belt is provided with wave crest parts and wave trough parts which are alternately arranged; the wave crest part is provided with a planting hole, and an annular boss is arranged on the inner wall; each trough part is provided with a liquid discharge pipeline and a nutrient solution flow channel; liquid holes in the bottoms of the planting holes are communicated with a liquid drainage pipeline through an inclined flow guide pipeline; capillary tubes are arranged on the nutrient solution flow channels and communicated with the field planting holes of the wave crests. And the supply parameters of the nutrient solution are dynamically adjusted through the irrigation control unit. The system is mainly suitable for industrial cultivation of leaf vegetable crops, and accurate supply of nutrient solution and efficient recovery of waste liquid can be realized.

The invention belongs to the field of plant genetic engineering, and provides an amino acid sequence of a protein coded by a turnip root expansion related gene BrrRSN1, a CDS sequence of the turnip root expansion related gene BrrRSN1, a DNA full-length sequence of the turnip root expansion related gene BrrRSN1 and application of the turnip root expansion related gene BrrRSN1. According to the invention, turnip root expansion character related genes are excavated and subjected to functional analysis, a molecular mechanism for regulating root expansion formation by BrrRSN1 is analyzed, and more gene resources are provided for further enriching understanding of a root expansion regulation network of cruciferae root vegetable crops and high-yield breeding of root expansion crops such as radishes and root mustard; and a theoretical basis is provided for realizing directional transformation of vegetable crop storage organs.

The invention relates to the technical field of planting equipment, in particular to an excavating mechanism for agricultural vegetable crop planting, which comprises an excavating unit used for excavating soil and comprising a wheel disc and a plurality of excavating bodies arranged on the outer wall of the circumference of the wheel disc, and the rotating direction of the excavating body on the lower side of the wheel disc on the wheel disc is the same as the advancing direction of the wheel disc. By means of the device, the defects existing in a traditional planting mode are effectively overcome, automatic and efficient planting operation is conveniently achieved, manpower is saved, efficiency is improved, meanwhile, by means of the mode that excavated soil is lifted and conveyed backwards, soil transportation work can be completed in space, the situation that the excavated soil is accumulated on the two sides of a ditch and occupies space is avoided, and the device is convenient to use. The operation area can be limited within a small range conveniently, so that the planting amount of crops can be increased, and the land utilization rate is increased.

A system for hydroponically growing plants, comprising an upper seed tray (100, 1401) configured to sit on a bottom tab (200, 1445). The upper tray includes a plurality of openings for holding soil and germinating seeds in the soil. The plurality of openings have contours that allow the roots of the growing plant to extend into the bottom tab. The tab is configured to hold an aqueous mixture of water and nutrient solution for the growing plant and comprises a lip around the top perimeter and at least one aeration device (240) for causing turbulence in the aqueous mixture that comes into contact with the roots of the growing plant. A method for growing plants using such a container is also disclosed.

The utility model discloses a rice vegetable crop rotation fertilization device, and belongs to the technical field of rice vegetable crop rotation fertilization. Comprising a fertilizer back barrel with a material opening and shoulder straps, a supporting ring frame is arranged at the bottom of the fertilizer back barrel, the supporting ring frame is in through connection with the bottom of the fertilizer back barrel through a material conveying pipe set, the supporting ring frame is coaxially and rotatably connected with a dispersing disc, and a driving mechanism is arranged at the bottom of the fertilizer back barrel. The driving mechanism comprises a motor fixed at the bottom of the fertilizer back barrel; fertilizer is conveyed to the supporting ring frame in multiple directions through the conveying pipe set and falls onto the strip-shaped dispersing disc, an output shaft of the motor drives the dispersing disc to rotate, the fertilizer is applied to the periphery through the centrifugal effect of the dispersing disc, and centrifugal dispersing fertilization, multi-direction conveying pipe layout and backpack type hard structure design are achieved. The technical effects of uniformly and annularly spreading the fertilizer, enlarging the fertilization coverage area and reducing the labor intensity of workers are achieved.

The invention provides a humic acid and graphite vinasse compounded soil conditioner as well as a preparation method and application thereof, and belongs to the technical field of development of biological agricultural auxiliaries. The soil conditioner provided by the invention can obviously improve the ecological conditions of the greenhouse vegetable continuous cropping soil, effectively alleviate continuous cropping obstacles, directly optimize the physical structure of the soil, continuously improve the basic fertility of the soil, synchronously increase the yield of vegetable crops and improve the product quality, and has a wide application prospect. And a key support is provided for sustainability and economy of greenhouse vegetable production.

According to the cabbage rhizome posture recognition method based on the YOLOv5 model and the image processing, recognition of cabbage rhizomes is achieved through the YOLOv5 target detection algorithm, and the positioning precision and the recognition precision are improved; an HSV color space is used, the range of h, s and v values of the background is determined according to the features of background colors, and the sensitivity of the HSV background segmentation method to illumination changes is reduced through the recognized root ROI; according to physical characteristics of cabbages, a minimum enclosing rectangle and a starting point of a convex hull are obtained based on a Grainfortune algorithm and by utilizing four-point coordinate values of a yolov5 detection frame, and the speed of obtaining the minimum enclosing rectangle is increased. According to the scheme, the inclination value of the cabbage can be accurately recognized, and the posture of the cabbage is judged; the method can be applied to harvesting of cabbages and can also be popularized to harvesting of other vegetable crops. Meanwhile, the technology can also be applied to the field of computer vision, and reference is provided for automation and intelligentization of agricultural production.

The application provides a water and fertilizer intelligent management and control method and system based on facility vegetable demand driving, and relates to the technical field of intelligent agriculture. Based on meteorological data and crop target yield, the total nutrient demand amount of the vegetable crop in each growth period is dynamically predicted through a crop growth model, the water and fertilizer management and control are driven by crop demand, the water and fertilizer supply is matched with the actual growth demand of the crop, the nutrient recommendation coefficient is determined by introducing soil fertility grade analysis, the accurate check based on the actual soil fertilization capacity is realized, and the rationality of nutrient input is significantly improved. Further, the initial scheme is formulated by combining the organic and inorganic fertilizer matching principle and the organic fertilizer mineralization characteristics, and the scientificity and sustainability of nutrient supply are ensured. Finally, the execution scheme is generated through the multi-objective optimization of the decision support system, a complete decision closed loop from prediction, planning to optimization is formed, and the accuracy and reliability of the water and fertilizer management and control of the facility vegetable are improved.

The invention discloses a buried compost type zero-carbon planting method. The method comprises the following steps: A, drilling: drilling a soil pit in to-be-planted soil by adopting a drilling machine; b, fertilizer filling: filling organic solid or slurry manure of a premixed fermentation inoculant into the soil pit, or directly putting a packaged solid bacterial manure bag into the soil pit; c, sealing: spraying plant glue to seal the organic manure; d, landfill, wherein the soil pit filled with the organic manure is subjected to landfill with surrounding soil; e, drip irrigation, wherein the landfill area is watered in a drip irrigation mode; f, fermenting: fermenting the organic manure in the soil pit under the humidity condition; the method has the advantages that the organic manure is fermented for a short time and effectively sealed in a buried mode, the content of organic matter in soil is increased, loss of the organic matter is reduced, the validity period of the soil improvement effect is prolonged, and on the basis that the method is suitable for planting, the soil quality is improved. And the carbon emission is reduced to zero emission.

This invention discloses a waterborne silicone-modified acrylic resin, its preparation method, and its application, specifically relating to the field of polymer coating materials for agricultural use. This invention introduces a new composite silicone-modified system of "nano-SiO2 + hydroxyl silicone oil + silane coupling agent." Pretreatment of nano-SiO2 with a silane coupling agent solves the aggregation problem, while hydroxyl silicone oil enhances the water resistance of the film. The addition of hydroxypropyl acrylate allows for precise control of crosslinking density through hydroxyl groups. The emulsifier is replaced with a mixture of sodium dodecyl sulfate and isooctylphenol polyoxyethylene ether at a ratio of 1:1.2-1:1.5, balancing emulsion dispersibility and seed compatibility. This resin exhibits uniform film formation, strong adhesion, and no adverse effects on seed germination, making it particularly suitable for coating seeds of grain crops (wheat, corn, soybean, rice), cash crops (cotton, rapeseed), and vegetable crops. It can impart a slow-release function to the coating agent, combining environmental friendliness with practical value.

This invention relates to a method for spring breeding of broodstock larvae of Procambarus clarkii in rice-vegetable rotation fields, belonging to the field of broodstock larvae breeding. The invention utilizes a rice-crayfish-vegetable crop rotation system, setting up artificial burrows, rainproof black antioxidant plastic film, field drainage ditches, fishing nets and basket traps, and broodstock removal and temporary holding facilities at different stages of broodstock reproduction. By rotating vegetables in winter and spring, the rice paddies are drained and moisturized, achieving the goal of spring breeding of broodstock larvae in rice-vegetable rotation fields. This invention fully utilizes the characteristics of rice, water spinach, and crayfish farming, delaying the emergence time of broodstock larvae, increasing broodstock yield and collection efficiency, and increasing broodstock larvae production. It enables seamless integration of broodstock larvae supply with crayfish farming in the cold regions of Northeast China, promoting the rapid development of the crayfish industry in northern my country and achieving increased production and efficiency. Furthermore, this method can increase the planting area of ​​water spinach in farmland, improve soil, and solve the problem of long-term waterlogging and siltation in the soil.

By monitoring the activity of pollinators that leave the nest to visit flowers in front of the nest entrance, we can help prevent the occurrence of poorly fertilized fruit in fruit and vegetable crops. [Solution] The system comprises a camera unit (12) that takes an overhead shot of pollinators (P) from above a background board (19), a video analysis unit (13) that analyzes the captured video of the pollinators to detect their outlines and measure the number of pollinators active in front of the hive entrance, and an output unit (14) that displays the analysis results. The analysis area (Z) processed by the video analysis unit is divided into three zones: a return zone (Z1), a stagnant zone (Z3), and an exit zone (Z3), sequentially from the hive entrance side to the field side. The system measures the number of pollinators exiting the nest when moving from the stagnant zone to the exit zone, and the number of pollinators returning when moving from the stagnant zone to the return zone, respectively, and sets the system to display at least the number of pollinators exiting the nest as the number of pollinator flower-visiting activities.

The application discloses a greenhouse facility vegetable cultivation mode operation management system based on artificial intelligence, relates to the technical field of cultivation mode operation management, and solves the technical problem that the existing technology cannot monitor vegetable crops according to types, so that intelligent control cannot be performed when the type of a planted crop is replaced in a greenhouse. The application detects the operation risk of a greenhouse facility vegetable cultivation area, prevents the vegetables in the vegetable cultivation area from being unevenly fertilized during the fertilization process, and reduces the production efficiency and the operation management efficiency of the greenhouse facility vegetable cultivation area. The application can also intelligently control the planted crops in the greenhouse facility vegetable cultivation area, improve the planting efficiency of the cultivation area when the type of a planted crop is replaced in the greenhouse facility vegetable cultivation area, avoids the problem that the planting risk increases after the type of a planted crop is replaced, and minimizes the influence of diseases and insect pests.

The invention discloses a soilless culture substrate for vegetable crops. The soilless culture substrate comprises a nutrient solution and water-based slow-release gel. According to the soilless culture substrate for the vegetable crops, an appropriate nutrient solution and an appropriate water-based slow-release gel formula are adopted, growth of the vegetable crops can be promoted, accumulation of biomass is facilitated, the yield is remarkably increased, the antibacterial effect is remarkable, and plant diseases and insect pests are effectively prevented; the water-based slow-release gel in the soilless culture substrate for the vegetable crops adopts a reasonable formula, so that the water-based slow-release gel can be slowly released at a proper speed, the water-based slow-release gel is continuously, relatively and uniformly released in the whole growth cycle of vegetables, and the water-based slow-release gel does not need to be replaced along with a nutrient solution in the use process.

The application discloses a preparation method and application of a magnetic bifunctional modified graphene oxide composite material. The material is prepared by sequentially performing the following steps on graphene oxide: p-phenylenediamine-mediated surface positive modification (amino functional group is introduced), ascorbic acid-induced mild reduction (hydrophobicity and pi-pi interaction are restored), and magnetic loading by a chemical co-precipitation method, so as to form a composite material with a multi-layer pore structure (the pore size is mainly mesoporous with a size of 2-50 nm) and rich surface functional groups (-NH2, -COOH and the like). Potted plant tests show that the material realizes complexation / adsorption (amino coordination, electrostatic attraction) of Cd and Pb heavy metal ions and interface adsorption (pi-pi stacking, electrostatic attraction and hydrophobic interaction) of PS-NPs through pore interception and functional group synergistic effect, significantly reduces the content of available pollutants in soil, and inhibits the migration of the available pollutants to the roots of food and vegetable crops and the transportation of the available pollutants to the aboveground parts.

The utility model discloses a kind of for mushroom vegetable crop rotation formula cultivation sprinkling irrigation device, belong to agricultural irrigation equipment technical field, to solve the problem of the structure of existing technology under sprinkling irrigation device is fixed, difficult to adapt to the height and range requirement of mushroom vegetable crop rotation formula cultivation.The sprinkling irrigation device for mushroom vegetable crop rotation formula cultivation includes support arm, cross arm and shunt strip, the support arm is vertically arranged, and support arm is provided with a pair side by side, a pair of the support arm has telescopic function;The cross arm is horizontally arranged at the top of a pair of support arm;The shunt strip is arranged in support arm bottom, and shunt strip lower surface is provided with sprinkling irrigation head, and the shunt strip can swing.The sprinkling irrigation device for mushroom vegetable crop rotation formula cultivation can drive shunt strip swing by drive mechanism, to change the sprinkling irrigation angle of sprinkling irrigation head, realize the uniform sprinkling irrigation to different area, satisfy the requirement of different crops to sprinkling irrigation angle when mushroom vegetable crop rotation.

The invention discloses a biological compound fertilizer and a preparation method thereof, and belongs to the technical field of compound fertilizers. The preparation method is used for solving the technical problem that in the prior art, when an organic fertilizer is coated with a coating material, the coating material cannot still have excellent mechanical properties and slow release performance under the extremely low core film mass ratio. The preparation method of the biological compound fertilizer comprises the following steps: uniformly mixing a coated fertilizer, an organic fertilizer and a colloidal substance to prepare the biological compound fertilizer, according to the coated fertilizer, a mixture of chelate resin and rosin water is used as a seed coating solution, and mixed microorganisms are used as a ball core material; the colloidal substance is a reactant of a formaldehyde solution and urea. The biological compound fertilizer prepared by the invention contains various nutrient elements such as microorganisms, organic matters and inorganic matters, and has better help to the growth of vegetable crops; in addition, the coated fertilizer prepared by the invention has the advantages of good mechanical performance and slow release performance.

This invention relates to the application of iron dihydroporphyrin in low-temperature resistance of oilseed and vegetable crops, and methods for achieving low-temperature resistance. The low-temperature protection agent for oilseed and vegetable crops includes iron dihydroporphyrin; the method for low-temperature resistance of oilseed and vegetable crops includes treating them with iron dihydroporphyrin. Its advantages lie in the fact that the iron dihydroporphyrin-containing plant low-temperature resistance regulator of this invention has a certain stress resistance effect on oilseed and vegetable crops, can reduce the chilling injury index of oilseed and vegetable crops, and provides a new approach and reference for improving the low-temperature resistance of oilseed and vegetable crops.

This invention discloses a high-voltage electrostatic adsorption type seed metering device and method for vegetable crops, applicable to the field of agricultural facility horticulture. It includes a seed metering device shell, which is a hollow cavity structure containing a seed metering disc. The seed metering disc has a plurality of shaped holes uniformly arranged circumferentially along its edge to accommodate the morphology of crop seeds. A power transmission device is installed on one side of the seed metering device shell. A seed box is installed above the seed metering device shell, and a seed metering tube is installed below. The device also includes an electrostatic adsorption-repulsion device, a seed stirring device, and a detection device. The electrostatic adsorption-repulsion device works with the seed metering disc to adsorb seeds from the seed box and discharge them through the seed metering tube. The seed stirring device agitates the seeds in the seed box, and the detection device monitors the seed metering status. This invention enables continuous and stable seed metering of vegetable crops, improving metering accuracy and seedling quality, while ensuring seed vigor and the controllability of the metering process.