112 results about "Catkin" patented technology

The invention relates to an automatically rotary catkin collector, belongs to cleaning equipment and mainly solves the problem of difficulty in collecting catkin. The automatically rotary catkin collector comprises a base, a casing and a blower. A horizontal bearing is arranged at the top of the base, the base is movably connected with the casing through the bearing, the casing is a cylindrical cavity arranged horizontally, a bell mouth is arranged at the front end of the casing, and a through hole and a parallel tail wing are arranged at the back end of the casing. Further, the blower is arranged in the casing, an elliptical filter screen which is inclined is arranged between the blower and the bell mouth, the top of the filter screen is inclined forwards and close to the bell mouth, and a wide-mouth bottle is arranged below the filter screen. Owning to the structure that the blower is arranged behind the filter screen and the wide-mouth bottle is arranged under the filter screen, a drive airflow flows through the casing to block catkin on the filter screen and enable the catkin to fall into the wide-mouth bottle to be stored. Owning to the structures of the bearing and the tail wing for steering, the opening of the casing faces a windward direction all the time. The automatically rotary catkin collector utilizing a solar power supply manner is environment-friendly and low-carbon.

A method for culturing the new variety of reed-catkins chicken includes such steps as choosing mutant cock and hen from local reed-catkins chicken, self-reproducing or transverse crossing, Choosing the cock and hen with transverse spots and light reed-catkins color, lateral crossing, choosing homozygotes, selective culturing, and repeating the previous two steps until stable heredity.

The invention belongs to the technical field of poultry breeding. A method for breeding a new strain of black-bone chicken with higher production performance comprises the following steps of: step 1, taking parents of foreign broiler chicken as female parents instead of hen CD, and the black-bone chicken with jute feather inland as male parents, and generating a generation F1 through cross breeding, selecting and leaving individuals with jute feather, black bone, and black skin in the generation F1; step 2, crossing and propagating the female individuals and the male individuals obtained in the step 1, and separating out jute feather, recessive white feather, black feather, and reed catkins, and removing recessive white feather, from the colored feather colony through crossing, and purifying and fixing the hair color, black bone, black shin, sexual maturity and other appearance characters according to the family and individual selective method, improving the growing speed, reproductive performance and other economic characters; step 3, through the breeding of four or more generations, successfully breeding the new strain of the black-bone chicken with relatively higher production performance in jute feather, recessive white feather, black feather, and reed catkins. The method improves the early growing speed and egg laying performance of the black-bone chicken in the nation, and obviously reduces the feed / gain ratio.

The present invention provides a method for controlling pollution due to willow catkins flying in the air. It is characterized by adopting tree trunk injection method to inject chemicals. Said method includes the following steps: preparing inhibitor, boring tree trunk and injecting inhibitor.

The invention discloses a catkin cleaning vehicle, which comprises a rectangular bearing plate, a No. The upper surface of the box body is provided with a No. 1 rectangular cover plate matching the No. 1 rectangular opening. A vacuum cleaner is provided on the front surface of the No. 1 rectangular box body. One side of the vacuum cleaner is provided with a cone with an opening downward. shaped suction hood, the other side of the vacuum cleaner is provided with a No. 1 pipe connected to the upper end of the side surface of the No. 1 rectangular box, and the rear end of the upper surface of the rectangular bearing plate is provided with a No. 2 rectangular box. A No. 2 rectangular opening is processed on the upper surface of the No. 2 rectangular box body. The beneficial effect of the present invention is that the present invention is designed for cleaning the catkins, and the catkins are wetted with water in the process of cleaning the catkins, so that the volume of the collected catkins is compressed, and then more catkins can be cleaned. At the same time, the used water is collected and reused by infiltration, which is practical and environmentally friendly.

The invention discloses a floating type water surface catkin automatic collection device and belongs to the field of municipal cleaning equipment. The floating type water surface catkin automatic collection device is composed of a propeller driving part, propeller driving part fastening screws, identifying floats, pulling-type filter cells, an annular floating body and a cleaning device main body. The propeller driving part is fixed to a propeller driving part mounting plane of the cleaning device body through the propeller driving part fastening screws. The six identifying floats are fixed to the two sides of a water inlet in the outer side of the cleaning device main body. The annular floating body sleeves the outer side of the cleaning device main body and is positioned at a limiting plate of the annular floating body. The six pulling-type filter cells are inserted into the corresponding positions in the cleaning device main body. The floating type water surface catkin automatic collection device can automatically float on water for collecting floating catkins in all directions, the pulling-type filter cells can store the collected catkins and can be taken out and cleaned for reusing at any time, the size is small, operation is simple and convenient, 24-hour automatic continuous collection operation on floating objects such as catkins can be achieved, the effect is good, and lots of manpower and material resources can be saved.

The invention discloses a novel populus catkin absorber. The novel populus catkin absorber can reduce populus catkin cleaning difficulties and improve the cleaning speed, and can also be used for collecting little cotton in a cotton plant. The novel populus catkin absorber comprises a movable cart body and a collecting device, and is characterized in that the collecting device comprises a fan, an air inlet channel, a collecting box and a collecting net. The fan is hung inside the movable cart body. The collecting net is arranged in front of an air inlet of the fan, two edges of the collecting net are bound on two V belts, and the V belts are arranged on belt wheels at the two ends of three main shafts on the movable cart body. The air inlet channel is formed in the front of the movable cart body, and a circular notch of the air inlet channel right faces the fan. The collecting box is arranged in the movable cart body, and rolling wheels are arranged at the bottom of the movable cart body. The populus catkin absorber has the advantage of being small in size, convenient to use and store, simple in structure, low in manufacturing cost, good in universality and absorbing effect and capable of conveniently cleaning populus catkin and achieving humanized design such as saving time and labor and parts of the populus catkin absorber are common.

The invention discloses an active carbon preparation method based on catkin. The preparation method comprises the following steps: ultrasonically dispersing the catkin in absolute ethyl alcohol according to the condition that the ratio of the catkin to the absolute ethyl alcohol is 10g:(300-900ml), and filtering to obtain pure catkin; carbonizing and activating under inert atmosphere, orderly acid-pickling and washing an activated active carbon sample until the filtrate is clear and the pH achieves 7; drying at 90-120 DEG.C to prepare the active carbon. The natural catkin is used for preparing the nitrogen-doped active carbon with developed ducts and high specific surface area, the environment problem is solved, and the great economic benefit is produced.

The invention provides a poplar and willow catkin inhibitor which can effectively inhibit poplar and willow catkins. The poplar and willow catkin inhibitor comprises polyacrylamide, fulvic acid, abscisic acid, brassinolide and forchior fennron. The raw materials are dissolved into a solvent, the medicament is sprayed onto tree crowns in a hyperbaric spraying mode, the validity period of each time of spraying can last for about one month, and if the growth cycle of the poplar and willow catkins this year is long, a second time of spraying can be conducted one month later. The poplar and willow catkin inhibitor overcomes various defects of poplar and willow catkin inhibitors in the prior art, and well overcomes the defects of urban poplar and willow greening.

The invention discloses a backpack poplar catkin and willow catkin absorption device and method. The device comprises a box body, a collection box is arranged on the top inside the box body, one end of the collection box is communicated with a collection pipe on the outer portion of the box body, and the other end of the collection box is communicated with an air inlet pipe of a draught fan; a filter screen is arranged at the connecting position of the collection box and the air inlet pipe; a ventage is formed in the side, close to the filter screen, of the bottom of the collection box, and a storage box is arranged at the position, located in the box body, of the lower portion of the ventage; a pushing device which can stretch out and draw back downwards is arranged at the position, corresponding to the ventage, of the top of the collection box, and a cleaning device is further arranged in the collection box and can drive a cleaning plate to move left and right; an air outlet is formed in the position, corresponding to the air outlet pipe of the draught fan, of the box body; an exhaust door is arranged at the position, corresponding to the storage box, of the bottom face of the box body, and a control box is arranged at the bottom of the interior of the box body and is connected with the draught fan; and the device is in a backpack type, and can be conveniently and flexibly used for outdoor and indoor poplar catkin and willow catkin cleaning work.

The invention discloses an air purification device for a textile workshop. The air purification device for the textile workshop comprises a base. A horizontally arranged supporting frame is welded tothe outer wall of one side of the base. A collection box is welded to the end, away from the base, of the supporting frame. A purification box is fixed to the outer wall of the top end of the base through screws. Three partition plates distributed at equal intervals are welded in the purification box. The interior of the purification box is divided into a filtering chamber, an activated carbon adsorption chamber, an ultraviolet sterilizing chamber and a cavity in sequence through the three partition plates. A fan is fixed to the inner wall of the bottom of the cavity through screws. A connecting pipe is welded to the outer wall of one side of the purification box. Impurities of flying catkins and dust in air enters a grid mesh and a filter screen for primary filtering at first, the flyingcatkins are blocked on one side of the grid mesh, and large-particle impurities such as the flying catkins are collected in the collection box for collection through vibration of a vibration motor andcan be prevented from blocking the purification box.

The invention discloses a catkin cleaning device for street environmental protection, which comprises an annular piece, a cross hook, a conical head, a round roller, a screw, a first U-shaped bar, a bar-shaped hole, a tooth groove, a shaft, a gear, a second U-shaped rods, through holes, return springs, pull rods, round hole blocks, handle bars, hand grip bars, ring blocks and push rods. The present invention has compact structure and convenient operation, which is beneficial to cleaning the catkins on the street, avoids the situation that the catkins are raised during the cleaning process and causes poor cleaning effect, is convenient for the user to remove the entangled catkins, and is conducive to the centralized treatment of the user The catkins are equipped with a number of cross hooks on the annular piece, which is beneficial to hook the fluffy catkins through the cross, and increase the speed of moving down the second U-shaped bar by stretching the return spring with elastic force, which is conducive to Tangled catkins shake off.

The present invention discloses a method for enriching sialylaglycopeptide, sialylated glycans or sialylated glycoside. The requirements of the invention protect application of Chinese white poplar catkin to enrichment of sialylaglycopeptide, sialylated glycans or sialylated glycoside. The invention also protects a method for enriching sialylaglycopeptide. The method comprises the steps of: (1) filling a column container with Chinese white poplar catkin to obtain a Popcat column; and (2) enriching sialylaglycopeptide from the digestion products of sialylated glycoprotein by using the Popcat column. The method provided by the invention has the advantages of mild conditions, low cost of column filling material, high singularity and substantial enrichment effect. The enrichment method provided by the invention can maintain the structure information of configuration information sialylated carbohydrate chain or glycan, preserve intact specific peptide information; the information is conducive to subsequent mass spectrometric analysis and reflects the native glycosylation state of protein and has great significance for the research on clinical diagnostic markers and disease mechanism.

The invention discloses a device and method for collecting and compressing poplar catkins into a bag. The device for collecting and compressing the poplar catkins into the bag comprises a car body 1,a first motor 8, a compression bag 9, a second motor 10, a third motor 11, a fourth motor 12, a roll shaft 13, a crank 14, a hose 16 and a PLC 18, wherein an absorption device 2, a solar box body device 3, a poplar catkin storage device 4 are arranged on the car body. The poplar catkins in the poplar catkin storage device 4 are accumulated and then absorbed into the compression bag 9 through the third motor 11, the poplar catkins in the compression bag 9 are accumulated and then air in the compression bag 9 is pumped again through the second motor 10, and finally, the collected poplar catkinsare compressed and stored in the compression bag 9. The device for collecting the poplar catkins is simple in operation and convenient to use, the speed of collecting the poplar catkins is high and the poplar catkins can be collected and compressed into the bag, transportation and carrying are convenient, and safety and reliability are achieved.

The invention discloses a brushing-off machine for sunflower seeds, which overcomes the defect of waste of time and labor of manual collection of the sunflower seeds in the prior art. The brushing-off machine comprises a feed inlet, flywheels, a belt, rotating shafts, soft brush discs, rubber stick discs, a case, a gear, a drive wheel, a flower disc outlet, driving wheels, a driving belt, a motor, a melon seed outlet, a support, a wheel, a spring, a conveyor belt, a driven wheel and a catkin outlet, wherein the left end of the case is connected to the feed inlet, each rotating shaft is arranged on the lower end of the corresponding flywheel, the lower end of the first left rotating shaft is connected to the corresponding soft brush disc, the lower ends of the two middle rotating shafts are connected to the identical rubber stick discs, the lower end of the rotating shaft at the right end is connected to the gear, the left end and the right end of the conveyor belt respectively sleeve the driven wheel and the drive wheel, the catkin outlet is connected to the left end of the case, the left end and the right end of the melon seed outlet are respectively connected to the catkin outlet and the flower disc outlet, the spring is arranged between the upper layer and the lower layer of the conveyor belt, the melon seed outlet is connected to the upper end of the support, and the lower end of the support is connected to the identical wheels. The brushing-off machine has the advantages of simple design, convenience, low cost and easiness in popularization.

The invention provides a dustproof mesh enclosure for a radiator. A dustproof mesh capable of being unfolded for shielding or being folded to stack is arranged in front of the air inlet of the radiator, and a pulley and a reversing wheel are arranged through a fixing plate; a motor control box drives a winch deploying and retracting steel wire rope to control the dustproof mesh to unfold upwards or fold downwards along a U-shaped guide groove; the dustproof mesh stops dust, grass clippings, poplar catkins, insects and other debris, thereby reducing the adsorption and accumulation of the debris through radiator fins of a transformer to make a heat sink network be unimpeded and improve the heat dissipation effect of the radiator; the dustproof mesh enclosure of the radiator can be folded and unfolded, so that disassembly and assembly and cleaning maintenance can be easily conducted; the dustproof mesh of the radiator adopts an assembling structure, and the installation is convenient and simple; the installation mode of the dustproof mesh enclosure of the radiator adopts a special C-shaped clamp which is fixedly connected with the radiator, and the original radiator structure is not changed, so that the process of installation needs no punching or welding, and has no influence on the original component structure of the radiator.

The invention provides a method for performing artificial crossbreeding without removing stamen from catalpa bungei. The method particularly comprises the following steps: (1) collecting pollen: collecting anther before the anther of the catalpa bungei is mature and does not crack, drying the anther indoors at the room temperature of 20 to 22 DEG C and collecting pollen after the anther cracks; and (2) performing artificial pollination: when the stamen of each flower of catalpa bungei is mature, the stigma is opened in a reverse V shape and the surface has milk white luster, lightly touching with hands or shaking catkin and quickly closing to perform artificial pollination. By the method, the artificial pollination is properly performed by selecting the optimum pollination time at the appropriate air temperature and under the clear, windless or breeze condition, so that a seed tree can be fertilized successfully and fructify a large number for fruits, and the requirements of scientific research and production can be met.

The invention discloses a textile cleaner and relates to the textile field. The textile cleaner comprises a first casing, a second casing and a guide pipe; the guide pipe is connected with the first casing and the second casing; an object accommodating device and an air suction device are arranged in the first casing; the object accommodating device is provided with the object outlet; the second casing is provided with the object inlet which is circular; the diameter of the object inlet is 10 to 20 cm. Objects such as flying catkins and dust can be sucked into the textile cleaner through the object inlet, the dust which is sucked in can be adsorbed through a dust collecting net, and the flying catkins enter into the object accommodating device, so that the textile cleaner has the advantages of enabling textiles such as the flying catkins to be recycled and reused, being capable of saving resources well, being beneficial to sustainable development and increase of productive profits and meanwhile achieving the cleaning purpose.

The invention discloses a preparation method of a poplar catkin / biomass fiber composite thermal insulation material. The preparation method comprises the steps of degreasing the poplar catkin so as toobtain degreased poplar catkin, simultaneously preprocessing biomass fibers so as to obtain fuzz fiber sol, controlling the raw material mass ratios of poplar catkin to fuzz fibers at 10:1-4, addingthe degreased poplar catkin into the diluted fuzz fiber sol, uniformly stirring to obtain degreased poplar catkin / fuzz fiber mixed liquid, discharging the residual diluent, and sequentially carrying out pre-freezing and vacuum freezing drying. According to the provided preparation method, different composite thermal insulation materials with different pore structures and different thickness are prepared by changing the contents and pre-freezing temperatures of the poplar catkin and the biomass fibers; the adopted poplar catkin is wide in source and low in cost, and the fuzz fibers obtained through the preprocessing of the biomass fibers can be of a three-dimensional net structure, so that the thermal insulation property of the composite thermal insulation material is improved; and the method is simple in process, low in preparation energy consumption, low in cost and wide in practical application prospects.

The invention relates to an anti-blocking poplar catkin cleaning device which effectively solves problems that poplar catkin is prone to blockage during suction and cannot be effectively collected. According to the technical scheme, the device comprises an outer shell, a water tank is arranged in the outer shell, a filter and an exhaust fan are installed above the water tank, a water adding port is formed in the upper right corner of the water tank, an overflow port is formed in the middle of the right side surface of the water tank, and a deslagging port is formed in the lower right corner ofthe water tank; the interior of the water tank is divided into a left cavity and a right cavity through a vertical partition plate, a rotating shaft in the front-back direction penetrates through themiddle of the partition plate, a transverse sleeve is fixed to the rotating shaft, a connecting rod capable of rotating and resetting is inserted into the sleeve, a filter plate is installed at the free end of the connecting rod, and a receding hole corresponding to the filter plate is formed in the upper portion of the partition plate; a vertical receding groove is formed in the partition plate,a brush is installed in the receding groove, and the receding groove penetrates through the partition plate left and right; and a vertical baffle corresponding to the receding groove is fixed to theright side surface of the partition plate. Self-cleaning of the interior can be achieved, blockage is avoided, and an adsorption effect is improved.

The invention relates to the field of plant grafting, in particular to a top grafting method of golden silk willows. The method includes the eight steps of selecting, stock breaking, ear peeling, agent coating, stock peeling, stock cutting, agent applying and post-grafting management. By improving and innovating an existing grafting technology, the golden silk willows have advantages in height, shape and color, do not generate too many catkins and have a high survival rate after being grated to stand willows, the overall ornamental value is increased, the cultivation period is shortened, cultivation environment conditions are widened, and requirements of urban garden greening projects are rapidly met.

The invention discloses a poplar 107 plantation method, and the method comprises the steps of (1) between February and March, taking a polar seedling 107 that has grown more than 3 years as a seed sprout, and cross cutting the seedling 3-5 meters high on the ground to obtain an original seedling stump and a stalk; (2) segmenting the stalk to so that each segment is 2-3 meters, removing the lateral branches on each segment and then planting each segment in a plantation aperture, wherein the diameter of the plantation aperture is 30-40 cm, the depth is 60-70 cm, and the plant spacing is 2-3 meters. The new tree obtained by the method has the advantages that the bark is smooth; the tree is suitable for road and garden greening while having no polar catkins, thereby reducing allergen and secondary disasters like fire hazards and reducing traffic accidents at the same time. The new tree obtained by the poplar 107 plantation method has the advantages that the growth is rapid; the branches are lush; and the root system is developed, thereby preventing water and soil loss and protecting the environment; the rotation cycle is shortened to 4-5 years, saving new poplar 107 lumber and rotation time.

The invention discloses a production technology for a peeled reed catkin float, which comprises the concrete steps: (1) the collection and pretreatment of materials; (2) perforation; (3) peeling and catkin taking; (4) primary molding; (5) the installation of a float foot and a float tail; (6) glue spreading; (7) turning; (8) the treatment of joints between the float foot as well as the float tail and a float body; and (9) the treatment of the float tail. The production technology has the advantages: 1. the production technology has simple material selection, can greatly reduce production cost, and is suitable for mass production; 2. the production technology is simple and reasonable, and effectively improves production efficiency; 3. the produced float has large buoyancy force, and the weight ratio of the needed balance lead to the float is more than 3 times; and 4. the float has apparent signals and large action, so a beginner using a sinker suspension fishing method is easy to learn.

A kind of equipment that is convenient for collecting poplar catkins. The two ends of the rotating drum are respectively fixedly connected with an annular baffle and an end plate. The middle part is provided with two limit rings at intervals, and the round rod is set with a sliding sleeve between the two limit rings. The lower end of the sliding sleeve is fixedly connected with the box, and the box is equipped with two exhaust fans and a battery. , the lower side of the box is fixedly connected with an exhaust pipeline, both ends of the exhaust pipeline are closed, and there are multiple suction nozzles on the exhaust pipeline; there are many small air holes on the body of the drum, and the right ring There are multiple exhaust outlets on the baffle, and the air inlets of the two exhaust fans are connected with the inner cavity of the exhaust pipeline, and the other ends of the exhaust pipelines connected to the two exhaust fans respectively extend to positions close to the exhaust outlets. ; The hand push rod is fixedly connected with the round rod located at the rear side. The device can facilitate the collection of poplar catkins.

The invention discloses a refined filtration drum dedusting device and a refined filtration drum dedusting method for an inlet air filtering system of a gas turbine. The refined filtration drum dedusting device comprises a sealing cover, a compressed air pipeline and a back-flushing valve, wherein the sealing cover covers an air outlet end of a refined filtration drum and used for sealing the air outlet of the refined filtration drum; the compressed air pipeline is communicated with the sealing cover; and the back-flushing valve is arranged on the compressed air pipeline and used for controlling the compressed air pipeline to spray compressed air into the refined filtration drum to perform back-flushing dedusting. According to the refined filtration drum dedusting device and the refined filtration drum dedusting method, the refined filtration drum can be cleaned effectively, the phenomenon of the increase of total pressure difference of the air suction system of the gas turbine, caused by pollution of the refined filtration drum, is avoided, the service life of the refined filtration drum is prolonged, the power generation cost of the gas turbine is reduced, the power generating efficiency of the gas turbine is improved, the adaption ability of the machine set to severe weather interferences such as haze, sandy wind, rain and snow and catkin is improved, and the operating safety and the operating stability of the machine set are improved.

The invention discloses a catkin sucking umbrella and belongs to the technical field of catkin suction. The catkin sucking umbrella comprises a fixing tube. Suction mechanisms are arranged symmetrically on the two sides of the fixing tube. Each suction mechanism comprises L-shaped connecting rods and softened sucking bars. One ends of the L-shaped connecting rods are hinged to the fixing tube, and the other ends of the L-shaped connecting rods are connected with the softened sucking bars correspondingly. The L-shaped connecting rods are connected with buckles. The fixing tube is provided with clamping grooves matched with the buckles. Each softened sucking bar comprises an outer gas bar body and an inner gas bar body, wherein the inner gas bar body is located on the inner side of the outer gas bar body, the inner gas bar body is connected with a plurality of sucking tubes which are uniformly arranged on the inner gas bar body, and the sucking tubes penetrate through the outer gas bar body to extend outwards. The catkin sucking umbrella provided by the invention is convenient to operate, catkin on poplars and willows can be directly sucked, the catkin content in the air is decreased from the source, and influences on the poplars and the willows in the sucking process are reduced.

The invention discloses a method for inhibiting tree seeds from producing flying catkins or flying fluffs. The method comprises the following step of spraying a self-prepared bud differentiation inhibiting agent to leaves of the tree seeds according to the crude drug concentration of 1.6 g / L to 51.2 g / L one to fifty days before the bud physiological differentiation stage of the tree seeds, or injecting the self-prepared bud differentiation inhibiting agent into a tree seed trunk according to the crude drug dosage of 3.2 g / dm to 51.2 g / dm, wherein the self-prepared bud differentiation inhibiting agent is prepared from the following raw materials in 1,000 parts by weight: 5 to 660 parts of crude drug and the balance of additive; the crude drug is compounded by any one or two of 1,2-dihydro-3,6-pyridazine diketone and dinitrobenzene amine weeding agents according to any ratio. The method has the advantage that the method can be used for inhibiting the tree seeds from producing the flyingcatkins or flying fluffs.

The invention discloses an artificial cultivation method for colorful poplars. The artificial cultivation method is characterized by comprising the steps of graft material selection, graft method selection, graft season selection, graft time determining and later-period management. Compared with traditional graft technology, the poplar survival rate is ensured, and beautifying time of colorful poplars is prolonged. The colorful poplars have the advantages of being high in ornamental value, sprouting early, defoliating late, being high in resistance and adaptability, achieving vegetative propagation, producing few willow catkins and being high in survival rate.

The invention provides a process for preparing reeds or amur silvergrass activated carbon, which comprises steps of (1) cutting the reeds or amur silvergrass into segments, then drying, (2) employing one of the following methods to perform preprocessing, wherein one method is that the reeds or the amur silvergrass is completely impregnated in acetic acid solution formulated by acetic acid of 36% and water for 8 hours or 6 hours at normal temperature and then is sucked and filtered out, and the other method is that the reeds or amur silvergrass is impregnated in phosphoric acid solution to rest at normal temperature for 8 hours or 6 hours, (3) placing the preprocessed reeds or amur silvergrass in a muffle furnace or a carbonization furnace for performing carbonization and activation, taking out after being cooled in the furnace, then washing by distilled water to pH value of 6.5-7.0 and drying to finish. The invention employs the chemical method to prepare the reeds or amur silvergrass activated carbon, the process is simple in procedure, high in efficiency and low in cost, and belongs to waste utilization and benefits environmental protection, and the reeds or amur silvergrass activated carbon with large specific surface area and high adsorption capacity can be obtained.

The invention discloses organic fertilizer for spinach planting. The organic fertilizer for spinach planting is prepared from the following raw materials in parts by weight: 23-28 parts of pond sludge, 8-12 parts of disused edible oil, 12-20 parts of urea, 4-9 parts of rotted kelp, 12-18 parts of Chinese brake herb, 6-10 parts of corn stalk, 8-11 parts of disused phoenix tree fruits, 3-7 parts of catkins and 5-8 parts of sambucus chinensis. A preparation method of selenium-rich spinach special fertilizer provided by the invention is simple and can effectively cultivate selenium-rich spinach, and the fertilizer has a certain slow-release function and high utilization ratio. A cultivation method of selenium-rich spinach provided by the invention can be used for cultivating spinach with a high biological selenium content, the biological selenium of the spinach has high safety, and the spinach produced by using the fertilizer can be widely used in various health-care foods, seasonings, beverages, animal feeds and plant fertilizer additives.