83results about How to "Not easy to rot" patented technology

The invention discloses a large sweet osmanthus high survival rate transplanting technology, and belongs to garden plantation technology field. The technology comprises the steps of (1) selecting the sweet osmanthus to be transplanted; (2) processing before transplanting; (3) digging the sprouts; (4) processing the sprouts root; (5) digging the plantation apertures; (6) hoisting and transporting; (7) colonization and (8) maintenance. In the sprouts root processing process, three-level nursing mode, namely rooting powder, wound paints and composite conditioning liquid are adopted to protect the root and promote root germination; when digging the plantation apertures, the fertilizer needed in the growth process of the sweet osmanthus is guaranteed by applying the fertilizer at the bottom in intervals; at the same time, the plantation apertures are taken good care of to guarantee the growth adaptability of the sweet osmanthus. According to the transplanting technology, the sweet osmanthus transplanting survival rate is high; the growth and recovery are fast; the germination is early; the root growth is fast and the growth is vigorous.

The invention provides an inducing method for water roots of plants. The inducing method is used for prolonging a viewing period of plants used for flower arrangement and is characterized by comprising following steps of: step 1, selecting arranged plants; step 2, utilizing a bactericide to process branches of arranged flowers; step 3, utilizing a plant growth regulator to process branches of arranged flowers; step 4, inducting water roots; and step 5, adding a nutrient solution for maintenance. The inducing method for water roots of plants has following beneficial effects: roots of arranged flowers processed by the method do not easily rot; arranged flowers are easily managed and are clean and hygienic; due to a long growth period, appreciation in a whole flowering stage is achieved such that an appreciation period can last one and even more than several months; the restriction on appreciating fresh cut flowers for a short period of time is eliminated on an original market for flower arrangement; combinability and variability are obtained; arranged flowers with roots in different kinds can be combined at will so as to satisfy the requirement for a flower market of people; and the inducing method has great market value.

The invention relates to a method for quickly cultivating the colorful mosque lotus. The invention comprises that cultivating small seed and cultivating the bloom ball, preparing base material, preparing planting bed, planting tube seed, managing, fertilizing, disinfecting, collecting ball, and storing. Compared with present technique, the invention has short cultivation time that reduces one year and high quality, while the root will not etch.

The invention discloses a fresh-keeping technique of rhizoma dioscoreae, which comprises the steps in sequence: (1) the rhizoma dioscoreae is washed and classified into different categories according to the degree of thickness and length; (2) the moisture on the surface of the rhizoma dioscoreae is removed by hypobaric drying at normal temperature; (3) rhizoma dioscoreae is weighed and put into packing bags; (4) the air in the packing bags are evacuated and inactive gas are injected into the packing bags; (5) the packing bags are sealed and inspected; (6) the gamma ray is adopted for the quantitive irradiation of the packing bags of rhizoma dioscoreae. The fresh-keeping technique of the invention can keep the quality of components contained, moisture, color and taste relatively stable for 12 months at the normal temperature without residues of any other chemical composition, maintains the eating effect of fresh rhizoma dioscoreae, thus ensuring convenient storage, transportation and sales of the rhizoma dioscoreae.

The invention provides a method for screening a salt-resistant maize variety. According to the method, plump, orderly and undamaged seeds are picked out from maize seeds in different varieties and subjected to sand-culture planting in the same planting matrix, seedlings growing consistently are selected after a period of time and transplanted to aeroponic culture turnover boxes containing a 1 / 2 Hoagland nutrient solution and grow into maize plants, the plants with three completely spread leaves and one unspread leaf in the center in the consistent growth condition are selected, stem thicknesses X1 are recorded, and the selected plants are divided into a salt treatment group and a blank control group; the plants in the blank control group are still subjected to aeroponic culture in the 1 / 2 Hoagland nutrient solution, and as for the salt treatment group, NaCl with the concentration being 200 mmol / L is added to the 1 / 2 Hoagland nutrient solution for aeroponic culture. After a preset time period passes, the stem thicknesses of the maize plants in the salt treatment group and the blank control group are measured respectively, and the maize variety more resistant to salt can be screened out through analysis and contrast of stem thickness data. The method is not high in cost, easy to operate and convenient to popularize and use in various places.

The invention discloses a lentinus edodes cultivation material and a making method thereof, relates to an edible mushroom cultivation method and belongs to the technical field of edible mushroom cultivation. The lentinus edodes cultivation material is characterized by comprising the following components in weight ratio: 60-80% of crushed cob, 4-18% of pearlite, 16-18% of wheat bran, 0.5-1.0% of gypsum powder, 0.6-1.2% of brown sugar, 0.2-0.4% of potassium dihydrogen phosphate and 120-135% of water. The lentinus edodes cultivation material has the beneficial effects that raw materials are conveniently and easily available; and the inorganic pearlite which is a mineral substance is added, so that water retention capacity and permeability of a bacteria stick are high, so that the lentinus edodes can favorably grow and develop.

An artificial dual-surface leather is prepared by coating plastics on both surfaces of high-strength chemical fibre fabric. Its preparing process includes preparing PVC mucilage containing flame retardant, plasticizer and stabilizer, feeding cloth, immersing, rolling levelling, baking, plasticizing and winding.

The invention relates to an agricultural machine, in particular to a straw cutting and recycling machine. The straw cutting and recycling machine comprises a traction frame (1), a frame and a transmission device which are matched with a tractor, and is characterized in that the frame is a housing (2) which is encircled by an upper cover plate (7) and side plates (8) on two sides, a cutter (4) is mounted in the front of the inside of the housing (2), a thrower (5) is mounted in the rear of the inside of the housing (2), a transverse cutting shaft (9) is mounted in the cutter (4), a plurality of circular saws (10) are mounted on the cutting shaft (9), a plurality of saw teeth are distributed on the periphery of each circular saw (10), and one end of the cutting shaft (9) is in transmission connection with a transmission wheel (3). The straw cutting and recycling machine has the advantages that straws can be cut into small sections to be convenient for aeration-drying and not easy to mildew and rot during storage, so that harvesting is performed synchronously in the early stage of straws with much moisture, the straws are suitable for storage in net bin storage equipment, fuel is provided for air-assisted cooling stoves, and the purposes for coal saving, environmental protection, full utilization of crop straws and farmers' income increasing are achieved.

The invention relates to a strip mop with a mechanical wiping device, which is characterized in that the mechanical wiping device is additionally arranged on the common cloth strip or wire mop; the mechanical wiping device is driven by utilizing up-and-down movement of slide blocks of a connecting rod mechanism on a mop rod. The pressing modes comprise a roll mode, a pressure plate mode and a pressure claw mode, wherein the roll mode transforms linear movement of the slide blocks to rotation of a roll through a rack, a gear and a synchronous belt transmission mechanism, a mop head is towed by the rack and is pressed by the roll at the same time, the speed of pressing a mop head transfer strip belt by the roll is the same as the speed of towing the mop head strip belt by the rack, both of the speeds keep synchronous, and the mop head is wiped and reset by the reciprocating movement of the slide blocks; and the pressure plate mode and the pressure claw mode are both characterized in that driving force of the slide blocks acts on a power arm of a lever through a top block and a pressure wheel so as to drive a pressure plate or a pressure claw on a resistance arm of the lever to extrude the mop head; the slide blocks tow the mop head to move up and down through drive rods at the same time; and the mop head is wiped in a framework and is reset when leaving the framework.

The invention discloses a cultivation method of pachira macrocarpa. The method comprises the following steps of land preparation, wherein a sandy loam land parcel which is deep, thick and fertile in soil, leeward and great in irrigation and drainage performance and faces the sun is selected and used as a planting field, land preparation is conducted, furrows are dug, and disinfection is conducted;sowing, wherein fresh pachira macrocarpa seeds with full grains are selected, soaked in water, cleaned, sowed in the planting field and watered, the temperature at the seeding stage is controlled, and pachira macrocarpa seedlings are obtained; transplantation, wherein disinfected nutrient soil is put into a planting pot, then the pachira macrocarpa seedlings are transplanted, and the pachira macrocarpa seedlings are sprayed with seed soaking liquid; pruning, wherein the pruning process comprises the steps of pinching, bud thinning, leaf picking, short pruning and shrinkage pruning. Accordingto the cultivation method of pachira macrocarpa, pachira macrocarpa is high in the seedling emergence rate and seedling strengthening rate, good in the growth condition and high in the stress resistance, pruning at the later period and recovering after pruning are conducted conveniently, and the ornamental effect and air purification effect of pachira macrocarpa are improved.

The invention discloses a fresh-keeping method for prolonging the shelf life of fresh beans, and belongs to the technical field of agricultural food science. According to the fresh-keeping method, the aim of keeping fresh is fulfilled by inhibiting diseases by adopting spontaneous modified atmosphere packaging, a postharvest physiological regulator and a low-temperature storage method to overcome the quality deterioration characteristics of rusty spots, water loss, meat hardening, fibrosis, rot and the like which are easily caused in the storage process of fresh beans. The fresh beans are pre-cooled to reduce field heat after being harvested and are sorted to remove beans with mechanical injuries, defects, diseases and pests, and then the left beans are stored into PE (poly ethylene) preservation bags with the thickness of 20 to 40 microns; 1-MCP (methyl cyclopentenolone) with the equivalent concentration of 0.5 to 2.0 micro-liter / L is added into the preservation bags; the preservation bags are bundled and fumigated at 15 to 20 DEG C for 2 to 4 hours, and then are opened; the fresh beans are pre-cooled for 24 to 48 hours in a fresh-keeping storehouse with the temperature of 10+ / -1 DEG C and the relative humidity of greater than or equal to 85 percent, and then are stored in the fresh-keeping storehouse with the temperature of 9+ / -1 DEG C and the relative humidity of greater than and equal to 85 percent. The fresh-keeping method for prolonging the shelf life of fresh beans is high in efficiency, convenient, and easy to operate.

The invention relates to a method for preparing an enzyme by using honeysuckle and curcuma longa as main raw materials. The method specifically comprises: (1) selecting 35-45 parts by weight of honeysuckle, 10-15 parts by weight of musa basjoo siebold, 10-15 parts by weight of pineapple, and 10-15 parts by weight of clausena lansium, and washing with clear water so as to be spare; (2) peeling the clausena lansium to expose the flesh, cutting the pineapple with the peel and the musa basjoo siebold with the peel into pineapple slices with the thickness of 1-2 cm and musa basjoo siebold slices with the thickness of 1-2 cm, and uniformly mixing the slices to obtain a mixture; (3) placing the mixture into a sealed container, adding honey and water, uniformly mixing, placing into a room, carrying out sealed fermentation at a room temperature, and maintain for 1 month, wherein stirring is performed everyday at the starting 5-7 days and stirring is performed every 7 days at the later days; and (4) washing fresh curcuma longa picked before and after winter solstice, cutting into curcuma longa slices with the thickness of 0.3-2 cm, taking 15-25 parts by weight of the curcuma longa slices, adding to the sealed container, and carrying out sealed fermentation for more than 3 months so as to obtain the product. According to the present invention, the enzyme prepared through the method has advantages of original food function maintaining, rich probiotics, rich nutrition, good taste, and long shelf life.

The invention discloses an assembled greening partition wall which solves the problem that plants on a greening wall at a current stage are easy to generate root rot after watering. The assembled greening partition wall is characterized by comprising a greening wall body, wherein the greening wall body is provided with a planting surface and a built-in cavity; the greening wall body is also provided with a planting unit; the planting unit is provided with a planting groove; planting soil for plants to grow is arranged in the planting groove; a planting opening for planting the plants is formedin the planting groove on the planting unit; the planting unit is provided with a water seepage opening at the bottom of the side surface, positioned in the built-in cavity, of the planting unit; theplanting unit is also provided with a water seepage element which covers the water seepage opening and abuts against the planting soil; and the greening wall body is also provided with a water supplydevice for supplying water to the water seepage element in the built-in cavity. The assembled greening partition wall can be used for greening an office environment, the appearance attractiveness ismore ideal, and the root rot probability of the plants is low.

The invention discloses a method for cultivating sedum shitaiense Yan Zheng et D.C.Zhang. The method comprises the following steps of: 1, washing the roots of field-acquired or tissue-cultured sedum shitaiense Yan Zheng et D.C.Zhang and appropriately cutting old and ill roots as well as old and yellow leaves; and b, submerging the treated root system of the sedum shitaiense Yan Zheng et D.C.Zhang in nutrition solution until white water roots are grown so as to obtain a potted landscape for selling, wherein the submersion length of the root system does not surpass a half of a total length. Compared with the prior art, the cultivated sedum shitaiense Yan Zheng et D.C.Zhang is difficult to suffer from root rotting and the potted landscape manufactured from the sedum shitaiense Yan Zheng et D.C.Zhang is particularly suitable for indoor arrangement at night.

The invention provides a method for screening salt-resistant peanut varieties. According to the method, full, regular and no-damaged seeds are selected from different varieties of peanut seeds, and are subjected to sand culture planting by the same planting substrate; after the sowing for a period of time, young seedlings with the consistent growth vigor are selected and transplanted into an aeroponic cultivation turnover box containing a 1 / 2Hoagland nutrient solution to be cultured into peanut plants; the plants with the consistent growth vigor in the trefoil stage are selected; the primary lateral root number X1 is recorded; the plants are divided into a salt treatment group and a blank control group; the blank control group uses the 1 / 2Hoagland nutrient solution for aeroponic cultivation; the salt treatment group uses the 1 / 2Hoagland nutrient solution added with 80mmol / L of NaCl for aeroponic cultivation. After the preset time, the primary lateral root number of peanuts of the salt treatment group and the blank control group is respectively measured; the salt-resistant peanut varieties can be screened out through analytical contrast on primary lateral root number data. The method has the advantages that the cost is low; the operation is easy; the method can be conveniently popularized and implemented in each place.

The invention provides a chestnut mechanical refrigerator humidity-adjusting storage and preservation method. The method comprises the steps of: pre-cooling harvested chestnuts in a refrigerator by reducing the temperature in steps, wherein relative humidity in the refrigerator during pre-cooling is over 90 percent; when the chestnuts are pre-cooled in the refrigerator by reducing the temperature in steps to the refrigerator temperature, starting to sub-pack jute bags of lining preservative films, and then adjusting the temperature in the refrigerator to 3 DEG C to minus 1 DEG C for pre-cooling; after pre-cooling, keeping the temperature in the refrigerator at minus 3 DEG C to minus 1 DEG C and the humidity of over 90 percent, storing for 30 to 40 days under the conditions, and adjusting the relative humidity of the refrigerator to 75 to 85 percent, and keeping the humidity in the whole storage period. By the chestnut storage and preservation method, the storage time of the chestnuts can be greatly prolonged, and problems of water loss, mildew and worms in long-time storage of the chestnuts can be solved.

The invention relates to a fabric which comprises a terylene fabric and a flocked chenille yarn fabric, wherein the terylene fabric serves as inner lining; the flocked chenille yarn fabric serves as an outer layer; the terylene fabric and the flocked chenille yarn fabric are connected through sewing. The fabric is characterized in that a bamboo fiber fabric layer formed by interweaving and blending warps and wefts covers the outer surface of the terylene fabric. The fabric is novel and fashionable in shape and format, bright in color, not monotonous, and easy to clean, can be matched with high-grade clothing, and can meet the requirement of modern young beauty-pursuing women; placing of lace serving as an ornament on the surface of the fabric can be avoided, so as to meet the kneepad requirement of numerous men. The fabric is simple in production process, high in quality, stiff, smooth, anti-wrinkle, high in strength, wear resistant, poor in moisture absorption, dried fast, moth-proof, mildew and rot resistant, and easy to store.

The invention discloses an aluminum-plastic film structure for a secondary rechargeable soft package battery. The structure comprises an aluminum layer (1) provided with an anti-corrosion layer on each of an upper surface and a lower surface; an outer protective layer (3) and an insulation inner layer are respectively adhered on two anticorrosion layers (2); the insulation inner layer comprises a first insulation layer (4) adhered on the lower surface of the anticorrosion layer (2) at the lower side of the aluminum layer (1), and a second insulation layer (5) adhered on the lower surface of the first insulation layer, wherein the first insulation layer (4) is one of a PET layer, a PI layer and a PBT layer, and the second insulation layer (5) is one of a CPP layer, a PP layer, an EAA layer and a PE layer. The structure disclosed by the invention has higher security performance, and is convenient for stamping processing.

The invention belongs to the technical field of food processing and discloses a pickled vegetable prepared from leaf mustard and a preparation method of the pickled vegetable prepared from leaf mustard. The preparation method includes vegetable selecting, vegetable drying in the sun, cleaning, finishing, blanching, pickling in jars, anaerobic fermentation and the like. In a fermentation process, rice flour water (prepared from 100 parts of water, 0.5-3 parts of glutinous rice flour and 0-1 parts of polished round-grained rice flour) is added for synergistic fermentation, and accordingly leaf mustard tissue hardness can be enhanced, and crispness of pickled vegetable products is effectively kept. By covering with reed leaves in a preparation process, delicate aroma, sourness and crispness can be promoted, and generation of nitrites can be effectively inhibited. The manufacturing method of the pickled vegetable is simple, the nitrite content of the pickled vegetable product is evidentlylower than a standard content stipulated in GB 2714-2015 National Food Safety Standards for Pickles, and the pickled leaf mustard product is crisp, sour and pure in taste.

The invention discloses a method for preparing enzyme by using lemons and galangal as main materials. The method comprises the specific steps that 1, 35-45 parts of lemons, 15-20 parts of galangal, 2-5 parts of turmeric, 8-15 parts of rhizoma zedoariae, 8-15 parts of grapefruit and 8-15 parts of musa basjoo are selected and cleaned for usage; 2, the lemons are firstly extruded to make peels broken and expose pulp, then the galangal, the turmeric, the rhizoma zedoariae, the grapefruit and the musa basjoo are cut into galangal slices, turmeric slices, rhizoma zedoariae slices, grapefruit slices and musa basjoo slices which are 0.3-2 cm in thickness, and then the materials are mixed evenly to obtain a mixture; 3, the mixture is put in a sealed container, honey and water are added for even mixing, then the mixture is put in a room, sealed fermentation is performed under room temperature condition, one time of stirring is performed every day in previous 5-7 days, later one time of stirring is performed every 7 days, the cycle is kept for one month, then sealing is performed, and fermentation continues for 6 months. The enzyme prepared by adopting the method retains the effects of original foods, is rich in probiotics and nutrition and long in shelf life and has a good taste.

A high-strength chemical-fiber paulin coated plastics and its manufacturing method. The paulin comprises a tarpaulin, side ropes and wrist ropes thereof. The tarpaulin is quadrate and is made up of atwo-side leatheroid. There have side ropes around the tarpaulin, and fortified strings in the middle thereof. The side ropes and the wrist ropes are polypropylene-polyethylene ropes. Instead of the traditional processing method by a sartorius, A polypropylene-polyethylene rope replaces a hemp rope, a high-frequency soldering method or a weld pressing method is adapted. A truck paulin could replace at least two tarpaulin to cover goods. The paulin of the invention could resist water, flame, low temperature, and comes up to requirements of TB / T1941-1999 of Ministry of railways.

The invention discloses a summer shiitake mushroom cultivation method. The method comprises the steps of cultivated variety selection, cultivating region selection, mushroom house building, material preparation, material blending, bagging, sterilization, inoculation, spawn running, fruiting management and harvesting, wherein the prepared materials comprise 72.5% of sawdust, 8% of cottonseed hulls,18% of wheat bran, 1% of gypsum powder and 0.5% of light calcium carbonate. Shiitake mushroom bacteria sticks are produced from every November to February of the next year, and fruiting is conductedfrom June to September of the next year. According to the method, summer shiitake mushroom cultivation is achieved, the stability of the yield is guaranteed, the rotten substrate bag disease is not likely to occur, and compared with ordinary cultivation, the economic benefit is increased by 30% or above.

The invention relates to a muskmelon cultivation method capable of promoting the growth. The method comprise the following steps that coconut shells in different sizes are selected, and the selected coconut shells are subjected to sterile disinfection; the coconut shells obtained after sterile disinfection are placed in a muskmelon support so as to serve as cultivation media of soil-less cultivation, the cultivation media are placed in a greenhouse to be overhead; muskmelons are planted on the cultivation media, meanwhile, the greenhouse is sealed, and compost fermentation is conducted in the greenhouse; the fermented compost is placed on the cultivation media for fattening of plants. Compared with the prior art, the growth speed of the muskmelons can be increased, the muskmelons are easy to ventilate and the roots are not prone to rot; pollution-free cultivation can be achieved; the fermented manure can be placed on the cultivation media for fattening of the plants, and convenience is improved; meanwhile, carbon dioxide generated in the fermentation process can meet growth requirements of the muskmelons, and the growth speed is increased; zeolite can improve soil, so that the muskmelons are more suitable for growing on the compost, and the growth speed is fast.

The invention discloses a cobra hatching method. The method of the invention comprises the steps of: sterilizing an incubator provided with a ventilator, laying a sterilized hatching layer on the bottom of the incubator, then placing the incubator in a dark room, and placing cobra eggs Place it on the hatching layer, which is made of vermiculite powder and polymer water-absorbing resin; control the temperature in the incubator to 25°C to 30°C, and the humidity in the hatch to 75% to 85%, and adjust the water content of the hatching layer to 7% to 10%; turn over the egg masses every 2 to 3 days, and remove moldy eggs and bad eggs in time. After 50 to 65 days, the hatching and emergence are completed, and the emergence rate is calculated. The invention adopts the mixture of vermiculite powder and polymer water-absorbing resin as the hatching layer material, so as to prevent cobra eggs from being infected with mold, ensure the humidity required for hatching cobra eggs, and increase the emergence rate.

The invention provides a garden seedling cultivation substrate and a preparation method thereof. The garden seedling cultivation substrate comprises 300-500 parts of humus, 90-120 parts of biogas slurry fertilizers, 80-100 parts of litter, 30-50 parts of peat, 7-10 parts of chaff, 7-10 parts of hydrated lime, 10-15 parts of ammonium bicarbonate water and 1-3 parts of trace elements. The peat is herbaceous peat or woody peat, and the ammonium bicarbonate water contains 80%-85% ammonium bicarbonate. The content of dead leaves in the litter is >=70%, and the water content is <=18%. The above rawmaterials are subjected to fermentation, soaking, mixing and the like to form the substrate suitable for garden seedling cultivation. The substrate has the advantages of extremely high soil permeability, complete nutrition and environmental protection, roots of garden seedlings are not easy to rot, and the substrate is beneficial to the growth and rapid increase in height of the roots of the garden seedlings.

The invention relates to a varied combined in-situ pot expanding planting container.The planting container comprises a base plate and flowerpot side walls.The base plate comprises a bottom face and a plurality of connecting walls arranged on the bottom face.The connecting walls are concentrically arranged, clearances are reserved between the adjacent connecting walls, and an external thread is arranged on the outer surface of each connecting wall.The number of the flowerpot side walls is equal to that of the connecting walls.A lower edge internal thread is arranged on the inner side of the lower edge of each flowerpot side wall, and an upper edge external thread is arranged on the outer side of the upper edge of each flowerpot side wall.Different flowerpot side walls are different in dimension, the lower edge internal thread of each flowerpot side wall can be connected with the external thread of the corresponding connecting wall on the base plate and can also be connected with the upper edge external threads of other flowerpot side walls, and the upper edge external thread of each flowerpot side wall can be connected with the lower edge internal threads of other flowerpot side walls.Compared with the prior art, the varied combined in-situ pot expanding planting container has the advantages of being simple in structure, high in operability, capable of being expanded many times, tight in combination, wide in application range and the like.

The invention relates to the technical field of crop cultivation, in particular to a gooseberry cultivation method. The gooseberry cultivation method includes the following five steps of seedling culturing, land selecting, field planting, fertilizer and water managing and pruning. The technical scheme is scientific and reasonable, the method is simple and effective, by means of scientific and reasonable seedling culturing, strict land selecting, reasonable field planting, timely and effective fertilizer and water managing and planned pruning, the gooseberry yield per unit area can be remarkably increased, the cultivated gooseberry is sour and sweet and has a faint scent and little disease and insect damage, the purpose of high-yield gooseberry cultivation is achieved, remarkable economic benefits are obtained, and the gooseberry cultivation method is suitable for large-scale industrial development.

The invention provides a method for screening salt-resistant sunflower varieties. The method comprises the following steps: selecting full and even complete seeds from the sunflower seeds of different varieties, and performing sand culture planting using the same planting matrix respectively; after seeding for a period of time, selecting the seedlings with consistent growth vigor and transplanting into an aerosol cultivation turnover box with 1 / 2 Hoagland nutrient solution to cultivate sunflower plants; selecting the plants with consistent growth vigor and single flower disc, recording the diameter X1 of the flower disc, and dividing the groups into a salt treatment group and a blank control group; performing aerosol cultivation of the blank control group using the 1 / 2 Hoagland nutrient solution; performing aerosol cultivation of the salt treatment group using the 1 / 2 Hoagland nutrient solution added with 120mmol / L NaCl; after the preset time, measuring the diameter of the sunflower disc of the salt treatment group and blank control group respectively; and screening out the sunflower variety with better salt resistance by analyzing and comparing the flower disc diameter data. With low cost, the method is easy to operate and facilitates promotion and implementation in various places.