36results about How to "Inhibition of transpiration" patented technology

The invention relates to a mango preserving technology. In order to achieve integrative pre-plucking and post-plucking preserving effect, the invention comprises four composite preserving pretreatment measures of disinfectant and calcium fertilizer spraying before mango plucking and heat treatment, rot-proof film-coating preservative treatment and ethylene inhibitor treatment after the plucking. The rot-proof film-coating preservative comprises 0.25 percent to 2 percent of glucomannan or / and 0.25 to 2 percent of CTS with 95 percent degree of deacetylation, 0.1 to 1 percent of sucrose fatty acid ester or / and 0.1 to 1 percent of glycerel monostearte, 0.1 to 0.5 percent sorbitol or glycerol, 0.5 to 1.5 percent of calcium chloride or calcium citrate, 0.05 to 0.1 percent of potassium sorbate, 0.01 to 0.1 percent of one or more of the following ingredients: iprodione, Sportak and mancozeb, 0.005 to 0.01 percent of gibberellin and 0.025 to 0.05 percent of vitamin K. The invention can decrease the respiratory intensity, postpone the respiratory climacterics, delay the postripeness time and prolong the freshness period of mangos. Compared with the prior art, the freshness period of the mangos can be prolonged by 10 to 20 days.

The invention discloses a plant protection pellicle, comprising 8-12 percent of polyvingl acetate emulsion,8-12 percent of humate, 3-5 percent of hydroxypropyl methylcellulose, 0.5-1 percent of alkyl sulphonates, 4-6 percent of Polyoxyethylene lauryl alcohol, 1.5-3 percent of gelatine glue, 1-2 percent of nano silica hydrated and 60-70 percent of water, and the compositions are added into water and mixed evenly to achieve black-brown suspension liquid. The plant protection pellicle has the functions of drug action, fertilizing, bagging and slow release. After dilution by water and spraying, a monomolecular film invisible to eyes is formed on the surface of the plant, thereby, the fruit tree is coated with 'clothes' immediately for thermal insulation, frost protection and drought resistance, restraining the transpiration of the moisture in the tree body, preventing the secondary infection of disease germs and improving the quality of agricultural products.

The invention provides a grape preservative and a preparation method thereof, which belongs to the fruit preservation field. The mentioned grape preservative includes the following ingredients with parts by weight: 0.5-3 parts of cinnamon essential oil, 0.5-2 parts of zanthoxylum bungeanum volatile oil, 0.5-2 parts of sodium alginate, 6-8 parts of sucrose fatty acid ester, 4-6 parts of polysorbate 80, 1-5 parts of propionic acid, 1-4 parts of calcium chloride, 2-4 parts of vitamin C, 2-4 parts of potassium sorbate, 10-20 parts of chitosan citrate solution and 10-20 parts of water. The preparation method comprises the steps of mixing the sodium alginate, sucrose fatty acid ester, polysorbate 80, propionic acid and water and fully dissolving them; then adding the essential oil to get composite essential oils; adding the composite essential oils into the chitosan citrate solution and blending. After picking of grapes, the diseased fruit and bad fruit are removed, the grapes are soaked in the mentioned preservation liquid for 3- 8 min. After taking out the grapes and draining them, the grapes are stored. The grape preservative mentioned in the invention can greatly reduce or delay decrease of quality and decay during storage process of grapes, which has outstanding grape preservation effect.

The invention relates to a method for storing and refreshing fruits. The method for storing and refreshing fruits through an ozone ice film provided by the invention is as follows: based on the storing environment below 0DEG C, a manual ice film containing ozone gas is formed on the surfaces of the fruits through an ozone water soaking method, the ice film not only can inhibit the transpiration and water loss of the surfaces of the fruits and can prevent the occurrence of damage caused by low temperature and freeze injury, but also can kill the various types of microorganism on the surfaces of the fruits, oxidize the substances released by the fruits, such as ethylene, ethanol and the like, and delay the after-ripening process of the fruits. By using the method provided by the invention, the fruit storing refreshment time is prolonged, and the refreshing effect is improved.

The invention discloses a mist cutting cultivation method using blueleaf honeysuckle shoots. The method mainly includes: setting a seedbed and supporting facilities, taking and treating cuttings, performing cuttage in May to July, managing the seedbed and the like, and specially includes: before calluses of the cuttings form, intermittently spraying mist to the cuttings for multiple times each day during seedbed management; after the calluses of the cuttings form, spraying the mist for less times; and maintaining cuttage substrate moist, and controlling the temperature of the seedbed at 18-26 DEG C till seedlings emerge after two to three months. By the method, the survival rate of the shoots subject to cuttage is high, cultivation cycle is short, and cultivation cost is low. Important technical basis is provided for large-area popularization of blueleaf honeysuckle in Shandong even in north China by the method.

The invention belongs to the field of storage and freshness keeping of agriculture products, and particularly relates to a nuisanceless freshness keeping agent for fruits and vegetables and a preparation method of the nuisanceless freshness keeping agent for fruits and vegetables. The freshness keeping agent for fruits and vegetables comprises the following components in percentage by weight: 20-30% of a propolis aqueous solution, 30-40% of an onion aqueous solution, 10-20% of a star anise extracting solution and the balance of sterile water. The freshness keeping agent for the fruits and the vegetables is prepared through the steps of preparing the extracting solutions, mixing the prepared extracting solutions, filtering the mixed extracting solutions, and packaging the filtered extracting solutions. The ingredients of the freshness keeping agent for the fruits and the vegetables are useful and harmless to human bodies, so that the freshness keeping agent is safe and reliable; the freshness keeping agent not only can prolong the storage period of the fruits and the vegetables, but also can maintain and improve the color of the fruits and the vegetables and improve the quality; besides, the freshness keeping agent has the advantages of being extremely easy in formula and being convenient to operate.

The invention discloses a fresh-keeping method of mangoes, and relates to the technical field of fresh keeping. The fresh-keeping method of mangoes comprises the following steps: (1) harvesting mangoes when the mangoes are 70-80% mature, selecting fruits which are uniform in size and free from diseases, pests and mechanical damage, and transporting the fruits to a storage warehouse for later use;(2) soaking the mangoed by using a disinfectant for 4-6 minutes for sterilization treatment, and then airing the disinfected mangoes; and (3) soaking the disinfected and aired mangoes in a preservative for 8-12 minutes, then fishing out and airing the mangoes, and performing packaging and storage at room temperature. The fresh-keeping method of mangoes of the invention is green, safe and environmentally friendly, and can effectively prolong the post-harvest life of mangoes under room-temperature storage and transportation condition.

The invention provides a cutting seedling-raising method of Lonicera nitida Maigrun, and relates to the technical field of plant cultivation. The cutting seedling-raising method includes the steps of seedling bed preparation, pretreatment before pruning, cutting treatment, cuttage and seedling culture management. By means of the cutting seedling-raising method of Lonicera nitida Maigrun, a suitable growth environment is provided for Lonicera nitida Maigrun, the rooting rate and the survival rate of the cuttage are improved, and the culture period is shortened; the defoliation rate of the seedlings decreases by 60%, the survival rate reaches 85%, the rooting rate of cuttings and the survival rate of the cuttage are significantly increased in large-area application, and the average survival rate reaches 86% or above.

The invention provides a refrigerator. The refrigerator comprises a refrigeration liner, and a light fresh keeping device, wherein the light fresh keeping device comprises a fresh increasing module; the fresh increasing module comprises a light guiding plate and a plurality of light sources; the light guiding plate is located on light paths of the light sources; the wavelengths of lights emitted by the light sources are different; the light sources comprise a first light source which can emit red light, a second light source which can emit orange light and a third light source which can emit blue light; the light fresh keeping device has a fresh increasing pattern; the fresh increasing pattern comprises a fruit fresh increasing pattern and a vegetable fresh increasing pattern; under the fruit fresh increasing pattern, in the same period, at least the first light source of the first light source, the second light source and the third light source operates; and under the vegetable freshincreasing pattern, in the same period, at least the third light source of the first light source, the second light source and the third light source operates. Through setting corresponding fresh increasing patterns, a user can select different fresh keeping patterns according to the stored food kinds, and the light fresh keeping effect is further increased.

The invention relates to an ecological freshness-retaining illuminating lamp and freshness retaining equipment. The ecological freshness-retaining illuminating lamp comprises a lamp housing, a lampshade, a radiator, a drive power supply, an LED combined light source and an electrode, wherein light emitted by the LED combined light source is 440-455nm blue purple light needed for plant photosynthesis and 650-680nm long-wave-band red light, which are matched with full-spectrum white light with relative low spectral energy to regulate spectral energy of blue purple light and long-wave-band red light, so that plant photosynthetic production and respiration consumption reach physiological equilibrium, and full-spectrum white light is beneficial for generation of chlorophyll. Far-infrared light-emitting paint is coated on the surface of the lampshade and / or far-infrared light-emitting powder is mixed in the lampshade material, and the lightshade absorbs ambient light and thermal radiation, and releases 8-14-micron far-infrared light; and the far-infrared light generates resonance with free water molecules in picked vegetables, fruits, fresh cut flowers and the like to restrain water transpiration loss, so that the quality guarantee periods of the picked vegetables, fruits, fresh cut flowers and the like are prolonged.

The invention discloses a preparation method of high-efficiency foliar fertilizer, and belongs to the field of fertilizer. According to the preparation method, with biogas slurry as a raw material, polyacrylamide and polyferric sulfate are added, wherein cationic polyacrylamide is a linear polymer compound and an iron flocculant, and since cationic polyacrylamide has various kinds of active radical groups, cationic polyacrylamide and various substances can be subjected to affinity and adsorption to form hydrogen bonds to mainly flocculate colloids with negative charges; meanwhile, colored substances in the biogas slurry are decolorized, deodorization and deoiling are conducted, ammonia, methane, hydrogen sulfide, organic amine, other benzene and nitrogen-containing compounds in the biogasslurry are removed, and the damage to the environment and the human body is reduced. The preparation method solves the problems that through long-term application of existing foliar fertilizer, the pollution to water soil can be caused, nutrients are easily lost, and the fertilizer effect time is short.

The invention discloses a nano-silver composite fruit preservative, a preparation technology and an application. The nano-silver composite fruit preservative comprises the following ingredients by mass parts: 40-60 parts of chitosan acetate with mass concentration of 1.0%, 40-60 parts of carboxymethyl chitosan deionized water with mass concentration of 1.0%, 0.5-1.5 parts of glycerin, and 0.05-0.1 parts of nano-silver zirconia, wherein nano-silver mass accounts for 5.0% of the mass of nano-silver zirconia, and nano zirconia mass accounts for 95.0%. The water-soluble fruit preservative has superior antibacterial property, by employing a natural biomacromolecule material, the fruit preservative has a plurality of characteristics of safety, no toxicity, film formation, bacteriostasis, edibility and biodegradability, respiration and transpiration of pericarp cells can be inhibited, so that loss of moisture, total sugar, total acid and VC can be reduced, the nano-silver composite fruit preservative can be kept at a high level and can prolong the shelf life of the fruits, so that a series of fruit fresh-keeping problem due to chemical medicine can be avoided, and the nano-silver composite fruit preservative has the advantages of nontoxicity and innocuousness, and green and environmental protection.

The invention discloses a freezing fresh-keeping method of fresh lotus seedpods. The freezing fresh-keeping method comprises the following steps: 1) cold sterilization: sterilizing the fresh lotus seedpods with electrolyzed oxidizing water; 2) coating preservation: forming a preservation coating on the surface of the lotus seedpod by using a coating preservative; 3) oxygen-isolated packaging: carrying out oxygen-isolated packaging on the lotus seedpod; and 4) freezing preservation: putting the packaged lotus seedpods into a refrigeration house for freezing preservation. The method provided bythe invention can effectively inhibit respiration and transpiration of lotus seeds, inhibit growth and propagation of microorganisms and activity of endogenous enzymes and slow down metabolic consumption of nutrients of the lotus seeds, so that the fresh-keeping period is prolonged, and the method has the advantages of good fresh-keeping effect and long effective preservation time. The invention also discloses the fresh lotus seedpod preserved by the method, and the lotus seedpod is fresh in color and good in taste.

The invention provides a bamboo fungus fresh-keeping method which comprises the following steps: soaking bamboo fungus in a compound fresh-keeping agent, packaging with a silicon window fresh-keeping film, and storing at 1-3 DEG C, the compound preservative comprises the following raw materials in parts by weight: 1-2 parts of chitosan, 15-25 parts of garlic juice, 10-20 parts of ginger juice, 5-10 parts of an artemisia selengensis extract and 0.5-1.5 parts of citric acid. The method can effectively inhibit the respiration and transpiration of the dictyophora indusiata, reduces the loss of moisture and nutrient substances of the dictyophora indusiata, and also can inhibit the enzyme activity, so that the dictyophora indusiata fresh-keeping method can highly maintain the whiteness value, hardness value, cohesiveness, elasticity and chewiness of the dictyophora indusiata body, the sensory quality is good, and the storage time is prolonged.

The invention provides a method for carrying out original-soil greening on coastal saline-alkaline land by adopting crocodile bone meal containing nutritional soil. The method comprises a land selection step, wherein the land selection step comprises the step of applying the nutritional soil, and the nutritional soil contains the following ingredients: peat soil, peat, a nitrogen-potassium-phosphate compound fertilizer, paddy straw powder, kaolin, a bitter melon extract, butanedioic acid, sawdust, caster bean dregs, chopped arillus longan, crocodile bone meal, well-composted goose feces, a water retention agent and micro-elements. The invention further provides a preparation method for the nutritional soil. According to the planting method provided by the invention, the expense for transporting imported soil is saved, the cost is reduced, and the expense is saved by 42%; the method plays roles in lowering the porosity of soil, amending the saline-alkaline land and lowering a hydrogen ion concentration index; and the leaf transpiration rate of planted Populus simonii is lowered to be 3.6 to 6.2 mu mole / (m<2>.s).

The invention provides an oilseed rape modified atmosphere packaging preservation method which comprises steps of selection, cleaning, water draining, sterilization, bagging, vacuuming, aeration, sealing and warehouse storage, wherein the step of aeration comprises a step of feeding gases of O2, CO2 and N2 into bags with oilseed rape by using a high-pressure aerator; the parameter values of the gases are that the concentration of O2 is less than 2, the concentration of CO2 is greater than 20%, and the other gas is N2. The method is novel in design, unique in method and wide in application, and key techniques that oilseed rape is short in shelf life and liable to rot and yellow are solved. The oilseed rape modified atmosphere packaging preservation method is low in production cost and very good in practicability and popularization since the shelf life of 3 days at normal temperature is prolonged to 25 days or greater.

The present invention relates to a molded article which is shaped of a polymer composition comprising 100 parts by weight of an olefin-based polymer, and 0.01 to 100 parts by weight of a C10-90 saturated chain hydrocarbon and / or liquid paraffin and 0.01 to 200 parts by weight of a releasable active compound per 100 parts by weight of said olefin-based polymer, and which is drawn at a draw ratio of 2 or more.

The invention discloses a fresh-keeping method for muskmelons; the method comprises the following specific steps: 1), selecting medium well-done muskmelons, picking, performing an overshadow treatment on the picked muskmelons by using a reflecting film; 2), performing 1-MCP (1-methylcyclopropene) fumigation on the muskmelons; 3), soaking the muskmelons in water; 4), blowing to dry the surfaces of the muskmelons; 5), spraying a fruit wax containing a fresh-keeping agent on the muskmelons; 6), drying the surfaces of the muskmelons; 7), putting the muskmelons in a refrigerator in which the temperature is 0 DEG C to 1 DEC C and the relative humidity is 75% to 85%, and pre-refrigerating for 1-2 days; 6), packaging each muskmelon by a micro-pore modified atmosphere fresh-keeping film; and 9), suspending the packaged muskmelons in the refrigerator in which the temperature is 0 DEG C to 1 DEC C and the relative humidity is 75% to 85%. The fresh-keeping method for the muskmelons is reliable and effective, and is low in pollution and side effect.

The invention discloses a mist cutting cultivation method using blueleaf honeysuckle shoots. The method mainly includes: setting a seedbed and supporting facilities, taking and treating cuttings, performing cuttage in May to July, managing the seedbed and the like, and specially includes: before calluses of the cuttings form, intermittently spraying mist to the cuttings for multiple times each day during seedbed management; after the calluses of the cuttings form, spraying the mist for less times; and maintaining cuttage substrate moist, and controlling the temperature of the seedbed at 18-26 DEG C till seedlings emerge after two to three months. By the method, the survival rate of the shoots subject to cuttage is high, cultivation cycle is short, and cultivation cost is low. Important technical basis is provided for large-area popularization of blueleaf honeysuckle in Shandong even in north China by the method.

The invention relates to the technical field of storage and fresh-keeping of agricultural products, and discloses a storage and fresh-keeping method of a pepper. The method comprises the following steps of: pre-cooling and cleaning the pepper, carrying out heat shock treatment and calcium infiltration treatment on the pepper, packaging and storing the pepper after cooling, wherein the heat shock treatment comprises the following step of soaking the cleaned pepper in water at the temperature of 45-55 DEG C; and the calcium infiltration treatment comprises the step of soaking the heat-shock-treated pepper in a calcium ascorbate solution. According to the storage and fresh-keeping method of the pepper, the low-temperature dynamic air-conditioning storage and fresh-keeping method combining theheat shock treatment and the vacuum calcium infiltration treatment is adopted, so that the heat shock treatment is beneficial to improving the resistance of the pepper during storage, the calcium infiltration treatment is beneficial to stabilizing the cell wall structure of the pepper, the operation is simple, no harmful residue exists, and the product quality can be ensured to be green and safe.

The invention discloses a preparation method of an orange fruit thinning agent. The method comprises: preparation of oligochitosan and preparation of a fruit thinning agent. The specific steps include: firstly subjecting chitosan and deionized water to mixed reaction, then adding hydrogen peroxide, conducting ethanol precipitation and ethanol washing to obtain oligochitosan, adding naphthylaceticacid powder, dinitrocresol, 1-aminocyclopropanehydroxyl acid, branched secondary alcohol polyoxyethylene ether, trichlorfon, naphthylacetic acid, 6-benzyladenine, and a blending agent to obtain a fruit thinning agent stock solution, and conducting dilution to obtain the orange fruit thinning agent. The invention has the beneficial effects that: after spraying the fruit thinning agent to orange branches, a layer of fruit thinning agent film can be formed on the orange branches, the film can effectively inhibit the transpiration of branches and reduce the water loss of branches, the orange fruitthinning agent has powerful blossom and fruit thinning effects, has an insecticidal function at the same time of blossom and fruit thinning, in addition, the fruit thinning agent also can increase the single fruit weight, enhance the fruit shape index, increase the flower quantity of next year, and reduce fruit rust, and also has no influence on the orange storage quality.

The present invention relates to a method for preparing a molecular biological grade fruit and vegetable preservation agent / film by using a biologically active extract nobiletin as a bio-based material, relates to a polymerization / complexation technology of two bio-based materials of the nobiletin and chitosan obtained by biological targeted extraction, relates to a specific application of the biologically-derived, natural and green biologically active extract in preservation of fruits and vegetables, and establishes a specific mode combining film-coating preservation and low-temperature preservation. Green peppers are soaked in a film-coating preservation agent prepared from the nobiletin and chitosan at a specific ratio at 16-18 DEG C for 60-90 s; the soaked green peppers are taken out to be put still for 60 s; and then the put still green peppers are continuously soaked again in the film-coating preservation agent at 8-10 DEG C for 60-120 s. The best ratio of the nobiletin to chitosan in the preservation is 1:4 and the nobiletin and chitosan have synergistic interaction at a low temperature environment to play a best preservation effect. The method is mild in cold shock low temperature condition, easy to realize, short in time and high in efficiency, effectively inhibits the deterioration of the quality of the green peppers and significantly prolongs the storage period and shelf life of the green peppers.

The invention provides abelmoschus manihot-containing functional nourishment which is prepared by utilizing abelmoschus manihot flower and flower buds as well as abelmoschus manihot degreased kernels as a main raw material and an auxiliary material, and a weight ratio of the abelmoschus manihot flower and flower buds to the abelmoschus manihot degreased kernels is (3-6):1. The abelmoschus manihot-containing functional nourishment has high contents of flavonoids compounds and remarkable pharmacological efficacy. The invention further provides a preparation method of the abelmoschus manihot-containing functional nourishment, so that the problem that the abelmoschus manihot flower and flower buds are extremely prone to oxidative deterioration after picked is solved, and the abelmoschus manihot flower and flower buds are utilized effectively.

The invention discloses a low-temperature preservation method of green peppers. The low-temperature preservation method comprises the following specific steps: 1) fumigating harvested green peppers with 0.5-1.0 mu l / L of methylcyclopropene for 4-6 hours; 2) soaking the fumigated green peppers in purified water for 5-10 minutes; 3) drying the surfaces of the green peppers; 4) spraying oil wax containing a low-temperature preservation agent on the green peppers; 5) drying the surfaces of the green peppers; and 6) storing the dried green peppers in a refrigeration house with the temperature of 4DEG C and the relative humidity of 70%-80%. The low-temperature preservation method of the green peppers is reliable, effective, free of pollution and small in side effect.

The invention relates to a mango preserving technology. In order to achieve integrative pre-plucking and post-plucking preserving effect, the invention comprises four composite preserving pretreatment measures of disinfectant and calcium fertilizer spraying before mango plucking and heat treatment, rot-proof film-coating preservative treatment and ethylene inhibitor treatment after the plucking. The rot-proof film-coating preservative comprises 0.25 percent to 2 percent of glucomannan or / and 0.25 to 2 percent of CTS with 95 percent degree of deacetylation, 0.1 to 1 percent of sucrose fatty acid ester or / and 0.1 to 1 percent of glycerel monostearte, 0.1 to 0.5 percent sorbitol or glycerol, 0.5 to 1.5 percent of calcium chloride or calcium citrate, 0.05 to 0.1 percent of potassium sorbate, 0.01 to 0.1 percent of one or more of the following ingredients: iprodione, Sportak and mancozeb, 0.005 to 0.01 percent of gibberellin and 0.025 to 0.05 percent of vitamin K. The invention can decrease the respiratory intensity, postpone the respiratory climacterics, delay the postripeness time and prolong the freshness period of mangos. Compared with the prior art, the freshness period of the mangos can be prolonged by 10 to 20 days.

The present invention relates to the field of tree transplanting, in particular to a method for transplanting trees with bare roots, which includes step 1), digging up trees; step 2), pruning tree roots; step 3), rinsing trees; step 4) , spraying hot-melt humectant towards the tree, the humectant cools and solidifies to form a moisture-retaining layer covering the trunk, branches, leaves and roots; step 5), transporting the tree to the transplanting point; step 6), opening the Digging a planting hole; step 7), lifting the tree and placing it in the planting hole; step 8), building a bracket to fix the tree; step 9), spraying warm water with a temperature higher than the melting point of the humectant toward the tree until the moisturizing layer is completely melted Become a humectant and flow into the planting pit; step 10), backfill the planting soil in the planting pit, and water. The invention has the effects of increasing the density of a single transportation, reducing the energy consumption of the transportation means, and reducing the transportation cost comprehensively.

The invention belongs to the field of storage and freshness keeping of agriculture products, and particularly relates to a nuisanceless freshness keeping agent for fruits and vegetables and a preparation method of the nuisanceless freshness keeping agent for fruits and vegetables. The freshness keeping agent for fruits and vegetables comprises the following components in percentage by weight: 20-30% of a propolis aqueous solution, 30-40% of an onion aqueous solution, 10-20% of a star anise extracting solution and the balance of sterile water. The freshness keeping agent for the fruits and the vegetables is prepared through the steps of preparing the extracting solutions, mixing the prepared extracting solutions, filtering the mixed extracting solutions, and packaging the filtered extracting solutions. The ingredients of the freshness keeping agent for the fruits and the vegetables are useful and harmless to human bodies, so that the freshness keeping agent is safe and reliable; the freshness keeping agent not only can prolong the storage period of the fruits and the vegetables, but also can maintain and improve the color of the fruits and the vegetables and improve the quality; besides, the freshness keeping agent has the advantages of being extremely easy in formula and being convenient to operate.

The invention discloses a cryopreservation method for persimmons. The cryopreservation method comprises the specific steps that (1) the harvested persimmons are fumigated through 0.5-1.0 [mu]l / L of methylcyclopropene for 4-6 hours; (2) the fumigated persimmons are placed in purified water to be soaked for 5-10 min; (3) the surfaces of the persimmons are blown dry; (4) oil wax containing a cryopreservation agent is sprayed on the persimmons; (5) the surfaces of the persimmons are dried; and (6) the dried persimmons are stored in a cold storage with the temperature being 4 DEG C and the relativehumidity being 70-80%. By adopting the cryopreservation method for the persimmons, the reliable and effective effects are achieved, pollution is avoided, and the side effect is small.

A solid polymer fuel cell includes a solid polymer electrolytic membrane 1, an anode 2 contacting one of the faces of the solid polymer electrolytic membrane 1, a cathode 3 contacting the other face of the solid polymer electrolytic membrane 1, and a gas-liquid separation membrane 4 enclosing a MEA 12 including the solid polymer electrolytic membrane 4, the anode 2, and the cathode 3, and which transmits gas but not liquid. An end face of the gas-liquid separation membrane 1 is sealed, and the MEA 12 is isolated from outside of the gas-liquid separation membrane 4. The anode 2 and the cathode 3 respectively include an electrode terminal extending from an end portion thereof, and the electrode terminal is exposed to outside of the gas-liquid separation membrane 4, through an end portion thereof. With such structure, a fuel is supplied in a form of vapor to the anode 2 through the gas-liquid separation membrane 4 opposing the anode 2, and a reaction product from the anode 2 is discharged through the gas-liquid separation membrane 4 located on a lateral side of the anode 2, and at least oxygen is supplied to the cathode 3 through the gas-liquid separation membrane 4 opposing the cathode 3.

The invention discloses a transpiration regulator for planting stocks in hilly lands. The transpiration regulator comprises the following raw materials by weight in 1 L of water: 50 to 150 mg of fulvic acid, 50 to 100 mg of sodium thiosulfate, 50 to 100 mg of sodium bisulfite, 50 to 80 mg of para-aminosalicylic acid, 200 to 300 mg of nitrogen, phosphorus and potassium compound fertilizer, 200 to 400 mg of trace elements, and 50 to 100 mg of citric acid. The transpiration regulator for planting stocks in hilly lands can effectively solve the problem that the planting stocks in the hilly lands are lack of water and dry, can promote the growth of root systems of the planting stocks in the hilly lands, improves the survival rate of planting stock transplantation, effectively decreases the opening degree of air holes of the planting stocks in the small hilly lands, inhibits transpiration, improves the water content of leaves, improves the content of free proline and the content of chlorophyl, and greatly improves the survival rate and the drought resistance of transplanted planting stocks. The invention further discloses a preparation method of the transpiration regulator for planting stocks in hilly lands.