53results about How to "Reduce ground temperature" patented technology

The invention relates to a vegetable planting method. The method comprises a seed treating step, a seedbed seedling raising step, a fertilizer applying and uniform plowing step, a ridging and ditch feeding step, a bare root planting step, a black plastic film covering step and a field management step, wherein the seed treating step comprises the following specific steps of: irradiating seeds with ultraviolet rays for 10 to 45 minutes to sterilize the seeds; soaking the sterilized seeds in solution of potassium permanganate in a ratio of potassium permanganate to water of 1:500 for 10 minutes; cleaning the soaked seeds with water; and soaking the cleaned seeds in 10 percent solution of trisodium phosphate for 5 to 10 minutes for disinfecting; and mixing the soaked seeds by using lactobacillus. No chemical fertilizer or pesticide is used in a planting process, so that the produced vegetables are not polluted. Actinomycetes and the lactobacillus are used in the seedbed seedling raising step, the fertilizer applying and uniform plowing step and the field management step, so that vegetable root rotting can be prevented and the infestation of plant diseases and insect pests to root systems is reduced.

The invention mainly relates to a covering cultivation method for mulching films, in particular to a covering cultivation method for biodegradable mulching films in a semi-arid region. The covering cultivation method is mainly characterized by comprising the following steps of 1, designing in fields, 2, tidying land, ridging and flattening the ground 3, fertilizing, 4, covering the biodegradable mulching films, 5, sowing, 6, managing in the fields, 7, harvesting, and 8, ploughing and burying mulching film residues into soil at the depth of 20-30cm instead of collecting the mulching film residues after the crops are harvested. The land tidying and ridging are carried out 7 days before crops are sowed, the covering tension of the biodegradable mulching films is 1 / 6 to 1 / 8 of the tension of ordinary mulching films, the biodegradable mulching films are 3-5mm away from the ground, and the biodegradable mulching films are covered 7 days before sowing. The covering cultivation method has the advantages that due to the fact that the biodegradable mulching films have high air tightness, the covered mulching films can reduce soil moisture evaporation and increase land temperature, can increase soil moisture, accelerates crop growth and development, and improves crop yield. Compared with traditional cultivation (covering-free convection planting), a maturation stage of crops covered by the biodegradable mulching films can be brought 7-10 days forwards, and the crop yield and the moisture utilization rate can be respectively improved by 1-58% and 14-45%.

The invention discloses a highway bridge pavement deicing and snow melting system based on energy pile and a running mode. The system comprises a heating pipeline, a heat extraction pipeline and an earth source heat pump device, wherein an earth source heat pump heat exchanger is connected with the heating pipeline and a heat extraction port of the earth source heat pump device respectively so as to form a heat storage loop and a heat extraction loop respectively; and the heating pipeline is connected with the heating port of the earth source heat pump device so as to form a heating loop. The system can thoroughly solve the problem of snow and ice on a highway bridge pavement, and can save more than 70% of energy compared with the traditional electric heating deicing and snow melting technology. Solar energy in summer is stored in underground soil for heating in winter, so that the ground temperature of rock and soil body around a pile foundation caused by unbalance of cooling and heating load is prevented from decreasing year by year.

The invention discloses a frame-heat anchor pipe structure for preventing and treating cold-region slope collapse due to freeze thawing and a construction method. The structure is composed of a cross beam (1), an upright (2), a protective cover (5) and a heat anchor pipe (7), wherein the heat anchor pipe (7) is composed of a condensation section (A), an evaporation section (B) and an anchoring section (C). When the frame-heat anchor pipe structure for preventing and treating cold-region slope collapse due to freeze thawing is used, the evaporation section of the heat anchor pipe absorbs the heat of a freeze thawing layer in the slope under the action of temperature difference and transfers the heat to the condensation section, and then the heat is dispersed to atmosphere so that the temperature of the soil body of the slope is reduced; as a result, soil pressure transferred to the frame by freeze thawing collapse is reduced; the heat anchor pipe is anchored in well frozen stable stratum by the anchoring section. The frame is connected with the heat anchor pipe to form a space structure, and the frame and the heat anchor pipe work synergetically to improve the overall stability of the frozen soil slope, and therefore, the frame-heat anchor pipe structure is applicable to prevention and treatment of freeze thawing collapse of slopes in a cold region; moreover, the frame-heat anchor pipe structure is convenient to construct, short in construction period, and low in construction cost.

The invention relates to a purple heart pitaya planting and a cultivating method. The method comprises the steps that 1, seeding stage management: at the early stage of characterization , one time of watering is conducted every 2 to 3 days, and timely drainage is conducted in rainy season; 2, at the initial planting period, emergency crops can be interplanted in a new orchard. Sod culture is adopted to the cultivating management once the pediciel of the pitaya climbs to the top of a pillar. Ridge plowing and root covering are conducted according to the root baring situation after raining, and ridge plowing to protect seeding is conducted in winter in the new orchard; 3, scientific fertilizer and water index; 4, pruning; 5, flower and fruit thinning and fruit bagging; 6, pest control: priority is given to the agricultural, physical and biological control, and chemical control is supplemented; 7, reaping and marketing timely. According to the purple heart pitaya planting and cultivating method, three-dimensional management is adopted into the planting of the purple heart pitaya, the production management is convenient, the taste of the purple heart pitaya is good, and the yield is high.

The invention relates to a vegetable planting method. The vegetable planting method comprises the seed treatment step, the seedbed seedling culturing step, the fertilization and uniform tilling step, the ridging and ditch irrigation step, the root exposed planting step, the black mulching film covering step and the field management step. In the seed treatment step, seeds are irradiated by ultraviolet light for 30 min to 55 min to be sterilized, then soaked in a potassium permanganate 500-fold solution for 10 min, washed by water, soaked in a 12% trisodium phosphate solution for 4 min to 8 min to be disinfected, and finally stirred by lactobacilli. The vegetable planting method has the advantages that no chemical fertilizer or pesticide is used in the planting process, so that planted vegetables have no pollution; in the seedbed seedling culturing step, the fertilization and uniform tilling step and the field management field, actinomycetes and lactobacilli are used, so that vegetable roots are prevented from being rotten, and infection of plant diseases and insect pests on root systems is reduced.

The invention discloses a standardization planting technology of cold-highland-area aconitum vilmorimianum kom. The standardization planting technology includes the steps of 1, planting area selecting; 2, soil preparing; 3, seed selecting; 4, standardization cultivating; 5, field managing; 6, disease and pest preventing; 7, harvesting. By means of the planting technology of cold-highland-area aconitum vilmorimianum kom, a regular effect and a reasonable effect are achieved, the yield can be increased, quality can be guaranteed, and high-quality raw materials can be provided.

The invention relates to a skid-resistant coating and application thereof. The coating comprises the following components in parts by weight: 62 to 120 parts of epoxy emulsion, 26 to 54 parts of xylene, 150 to 325 parts of filler, and 5 to 18 parts of amine curing agent; and all the components are uniformly mixed in proportion to obtain the skid-resistant coating. The coating is applied to skid resistance of floors of a house, a public place, a highway, an airport and other floors. The skid-resistant coating has high skid-resistant performance and high heat reflectivity, can be attached with the floor well, and is low in cost.

The invention discloses a slow-release fertilizer for watermelons in dry sandy field. The slow-release fertilizer comprises the following compositions in percentage by weight: 20 percent of urea, 60 percent of calcium superphosphate, 19.4 percent of potassium sulfate, and 0.6 percent of sustained release drug; the sustained release drug is prepared by mixing nitrogen inhibitor and phosphorous activating agent according to weight ratio of 3:1; and the nitrogen inhibitor is prepared by mixing nitrification inhibitor and urease inhibitor according to a weight ratio of 1:0.3. The slow-release fertilizer for watermelons in dry sandy field has the advantages of being simple to apply, capable of conducting application at one time, low in production cost, and high in fertilizer utilization rate, and increasing the yield of watermelons.

The invention relates to the field of coal mine acquisition technology and specifically relates to coal mine underworkings-type coal-seam gas fracturing equipment. An underground coal body (5) is connected with one end of each of a plurality of high pressure fracturing pumps (4) through high-low pressure manifolds (6); the other end of each of the plurality of the high pressure fracturing pumps (4) is connected with a fracturing-liquid mixing and proportioning mixer (2) through the high-low pressure manifolds (6); one end of the fracturing-liquid mixing and proportioning mixer (2) is connected with a plurality of liquid storage tanks (1) through the high-low pressure manifolds (6); and a lower end of the fracturing-liquid mixing and proportioning mixer(2) is connected with a control monitoring device(3). The coal mine underworkings-type coal-seam gas fracturing equipment is used for fracturing coal seams, can assist in improving coal seam permeability and can assist in reducing rock bursts of a coal body fracturing area and reducing risks of coal and gas outbursts and the rock bursts at a working face.

The invention discloses a method for producing bulb and controlling florescence by utilizing effective accumulated temperature in tulip growing period, wherein the method for producing bulb by utilizing effective accumulated temperature in tulip growing period comprises the steps of determining the effective accumulated temperature at the tulip growing period; selecting a low temperature semi-arid climate type area that has an average temperature of 12-16 DEG C and a dryness fraction of 2-3 in July as the production base on the basis of determining the effective accumulated temperature at the tulip growing period; planting the tulip to control the tulip stem and leaf coverage between 95-100%; and covering the organic matter 3-5cm thick. After grasping the effective accumulated temperature at the growing period of the cultivar and the set temperature when planting, namely the temperature of tulip at growing period, calculate the accurate blossom date by the following formula: N=K / (T-C).

The invention belongs to the technical field of integrated control of disease, insect and weed damages of plants and particularly relates to a method for realizing pesticide application reduction andsynergism of a citrus orchard. According to the method for realizing pesticide application reduction and synergism of the citrus orchard, silver black reflective films are used for covering citrus, and the stability of the planting conditions of the citrus can be better guaranteed; meanwhile, the number of pest population such as winged aphids, thrips and citrus psylla can be effectively reduced,and the use frequency of chemical insecticides can be thus reduced; in addition, germination and growth of weeds can be effectively inhibited, the annual use frequency of herbicides can be reduced by2-3 times and even the use of the herbicides can be completely eradicated in the whole citrus planting process, so that manual operation of intertillage, weeding, irrigation and the like can be greatly reduced, and the production cost can be reduced greatly.

The invention discloses a knot-ridging, furrowing, rain-collecting and planting method for a semi-arid gentle-slope land; the method comprises the steps of ridging and furrowing, fertilizing, covering rain-collecting ridges, seeding, building knot-ridges in furrows, managing a field, harvesting, and maintaining after harvesting. By using the method, soil water content and crop yield can be increased, land temperature can be increased, mineral nutrient content of an arable layer can be increased, fertilizer utilization efficiency can be improved, physical characteristics of soil can be improved, soil porosity is increased by 1-10%, unit weight is decreased by 0.02-0.3 g / cm<-3>, and soil aggregate structure is increased by 1.5%.

The invention provides a method for managing and controlling weeds of an orchard in South China. The method comprises the following steps: (1) spermacoce latifolia seeds are uniformly spread in the orchard; after the weather becomes warm and the seeds are germinated, a spermacoce latifolia population is established; (2) after the spermacoce latifolia population is established, spermacoce latifolianormally flowers and bears fruits; after the spermacoce latifolia is withered, seeds falling into oil are germinated again in the next year to form a dominant population; a process goes full circle to realize a continuous inhibition effect on the growth of the weeds of the orchard. According to the method for managing and controlling the weeds of the orchard in South China, provided by the invention, sod cultivation is carried out by utilizing the spermacoce latifolia which is shallow in root system distribution and strong in invading capability and can easily form a high-density grass cluster; the aim of inhibiting the weeds is realized through competing for ecological niches; the problem of preventing and controlling the weeds of the orchard in a production process of pollution-free fruits under different site conditions in South China is solved.

The invention discloses a cold region tunnel fire fighting pipeline solar energy-ground source heat pump united heat storage heating system which comprises a solar energy heat collector, a heat-supplying pipeline, a ground source heat pump heat exchanger and ground source heat pump equipment. The solar energy heat collector and the ground source heat pump equipment are respectively connected with the ground source heat pump heat exchanger, and thus a heat storage loop and a heat-taking loop of surrounding rocks in the middle portion of a tunnel are respectively formed, the solar energy heat collector and the ground source heat pump equipment are respectively connected with the heat-supplying pipeline, and thus heat-supplying loops of fire fighting pipelines inside the tunnel are respectively formed. According to the cold region tunnel fire fighting pipeline solar energy-ground source heat pump united heat storage heating system, the ground source heat pump heat exchanger is mounted in a hollow rock bolt in the surrounding rocks in the middle portion of the tunnel to replace underground drilling holes needed by a traditional ground source heat pump buried pipe, and thus the land is not occupied, initial investment cost is saved, solar energy in summer is stored in the surrounding rocks of the tunnel to supply heat in winter, and thus solar energy cross-quarter utilization is achieved.

The method for resisting retrogression in the course of producing seed bulb of tulip includes the following steps: after it is sowed, covering the surface of the soil with rice straw to reduce soil temperature, it is favorable for delaying senility of tulip plant, after the scape of the tulip plant is extended, removing bud so as to reduce nutrient consumption, it is favorable for growth of underground seed bulb, using phenylurea growth regulator CPPU (N-(2-chloro-4-pyridyl)-N-phenylurea) or adding small quantity of growth regulator containing potassium dihydrogen phosphate and washing powder to treat leaf blade of tulip, when the sunlight is intense, adopting sunshading measure, when one-half of leaf blade of tulip plant is withered, harvesting seed bulb. Said invention can prolong growth period of tulip plant, can inhibit retrogression of seed bulb and implement rejuvenation of seed bulb.

The invention relates to a sunshade with a heat conduction pipe water storage function, which comprises a mechanism temperature conduction device. The temperature conduction device comprises a heat conduction shell, heat conduction pieces are evenly distributed on the heat conduction shell, the heat conduction pieces can play a role in heat dissipation, a heat preservation block is arranged in the heat conduction shell, and a semiconductor heat conduction plate is fixedly arranged on the heat preservation block. By means of the sunshade with the heat conduction pipe water storage function, the sunlight throughput can be adjusted when illumination is too strong, so that the area where plants are located can be shielded, the ground temperature of the area is reduced, and growth of the plants is facilitated when the plants are subjected to normal illumination. By utilizing the temperature difference between day and night, when the temperature rises, a light shielding plate keeps the low temperature, and accordingly water vapor around the light shielding plate is condensed. Condensate water is attached to the light shielding plate, and the condensate water is scraped off and collected into a water collecting tank to be supplied to the plants, so that the survival rate of the plants is increased.

The invention relates to the technical field of production of mulching films, in particular to a high-photosynthetic-efficiency environment-friendly weather-proof silver-white-silver three-layer composite mulching film and a preparation method thereof. The high-photosynthetic-efficiency environment-friendly weather-proof silver-white-silver three-layer composite mulching film is formed by compounding a silver-gray outer film, a white middle film and a silver-gray inner film. The prepared composite mulching film comprises three kinds of linear low-density polyethylene with different properties,metallocene linear polyethylene, light stabilizing auxiliaries, B225-type composite antioxidants and ultraviolet light absorbers, and accordingly, the product has the advantages of high photosynthetic efficiency, high temperature, high soil moisture conservation performance, long service life and the like; after crop harvesting, old films still have high physical and mechanical properties, the tensile strength is slightly reduced, and the mulching films can be reused instead of replacement for each batch; the composite mulching film is quite easy to recycle and sort, and has high reutilization value; on the basis of ensuring heat insulation, soil moisture conservation, weeding and fertilizer efficiency conservation, effective reutilization of recycled resources is facilitated, and environmental pollution is reduced.

The invention discloses an electric-heating film greenhouse. The electric-heating film greenhouse comprises a greenhouse, wherein an electric-heating film with an upward heating surface is horizontally paved at the bottoms of cultivating ridges, and / or an electric-heating film with two heating surfaces is vertically paved at the bottom among the cultivating ridges. The electric-heating film greenhouse is heated by virtue of the electric-heating film and has the advantages that the heating speed is high, the heating is uniform, the heat efficiency is high, and the ground temperature can be rapidly increased. The technical equipment is simple and easy to implement, the labor cost can be greatly saved, the cost is relatively low, and good benefit can be achieved.

The invention belongs to the field of plant cultivation and particularly relates to a method for cultivating mini-vegetables in a greenhouse arch shed. The method comprises the following steps that good mini-vegetable seeds are selected, plug seedling is performed, planting is performed in good time, the arch shed is managed and harvesting is performed. By utilizing a temperature changing processing method in the process of plug seedling, namely the mini-vegetable seeds are placed in water with the temperature of 50 DEG C to 55 DEG C and soaked, continuous stirring is performed till the temperature of water is lowered to 30 DEG C, stirring is stopped, the seeds are transferred into a condition of -5 DEG C to 0 DEG C and frozen for no less than ten hours. The cold-resistant capacity of the mini-vegetable seeds is greatly improved, and the viability of the mini-vegetable seeds in adversity is improved. According to the method for cultivating the mini-vegetables in the greenhouse arch shed, in a process where a night temperature rises to a daytime temperature, when the temperature rises to 26 DEG C, temperature rises slowly, and then the daytime temperature is kept between 26 DEG C to 28 DEG C, the temperature in the shed can be kept within a range of 26 DEG C and 28 DEG C for a long time, and pest and disease damage does not favorably happen.

The invention provides a matching planting method for multi-span greenhouse mechanical production. The method comprises the steps of chili seed preparation, seedling growing substrate preparation, chili seedling preparation, fertilizer applying for soil, deep scarificationploughing and rotary tillage, after the deep scarification ploughing and the rotary tillage, and soil is divided into a basic layer with large and compact particles and a soft growing layer; a ridger is used for ridging along the trend of a greenhouse; a multi-functional mulch applicator is adopted for completing the work ofdrip irrigation zone laying and mulching film laying; a full-automatic or semi-automatictransplanter is adopted for conducting transplanting and planting on chili seedlings with the seedling age of 45-50 days, the plant height of 15-18 cm and 6-8 main leaves, the chili seedlings are transplanted and planted in a growth layer, and seminal leaves are flush with the ground. According to the method,through mechanical planting for chili, it can be avoided that the soil is hardened or compacted manually, the root systems of the chili can effectively breath normally, the chili can conveniently absorb nutrition, and the problems that the labor intensity of manual planting for the chili is high, the amount of the labor used is large, and the production cost is gradually increased are solved.

The invention relates to a no-tillage drip irrigation planting method for autumn Hami melons. The no-tillage drip irrigation planting method comprises the following steps that (1), soil preparation is carried out, specifically, spring melon seedlings uniformly cover the earth surface outside a planting belt; (2), staggered direct seeding is carried out, specifically, spring Hami melon seeding holes are staggered between July 5 and July 20, punching and directly seeding are carried out on a spring stubble mulching film, seeds are covered with fine soil, and the mulching film is pressed and covered; (3), according to a cultivation mode, the narrow row spacing of the Hami melons is 0.5-0.6 m, the average row spacing of the wide row and the narrow row is 3.2-3.5 m, and two drip irrigation belts are arranged under the mulching film; (4), according to an irrigation mode, water is dripped for 2-4 hours in the morning and evening every day after sowing until the seedlings emerge to full seedlings; (5), field management is carried out, specifically, seedling hardening is carried out for 12-15 days, double-vine pruning is carried out, vines are pressed at proper time, melons are selected, the melons are padded, the melons are interplanted, water and fertilizer integrated management is carried out, and comprehensive prevention and control is carried out on plant diseases and insect pests; and (6), harvesting is carried out, specifically, when soluble solids in the center of the Hami melons reach 14% or above, harvesting is carried out. According to the no-tillage drip irrigation planting method for the autumn Hami melons, the production cost is saved, economic benefits are increased, white pollution is reduced, and ecological benefits are obvious.

The invention relates to a reinforced soil retaining wall for plateau permafrost regions and a construction method thereof. A wall body structure is a multi-layer filling structure formed by filling step by step from bottom to top, and a geogrid composed of tie bars is arranged on the bottom face of each layer of the filling structure; the two sides of the multi-layer filling structure in the transverse direction are slopes, concrete modules are built from bottom to top to cover the surfaces of the slopes, and the tie bars in the filling structure extend into gaps between an upper layer of concrete modules and a lower layer of concrete modules and are fixed through plug pins. A rubble layer is arranged on a basement of the retaining wall, so that the cold reserves of a foundation of the retaining wall are increased advantageously, the ground temperature drops actively, permafrost is protected, and foundation thaw collapse is controlled to be within the overall deformation coordinationcapacity limit of the reinforced soil retaining wall; the rubble layer of the basement is of a flexible structure, the foundation frost heaving force can be damped, and foundation frost heaving is controlled to be within the overall deformation coordination capacity limit of the reinforced soil retaining wall; and a wall module and reinforced bodies are connected through the tie bars, and occurrence of the phenomenon of unstability of the retaining wall caused by breakage of the tie bars can be effectively avoided.

The invention provides a dry farming agricultural district biological fully-degradable material comprising a first film layer and a second film layer, wherein the degradation time of the first film layer is greater than that of the second film layer. The first film layer contains praseodymium stearate, hydrotalcite powder, ferrocene, strontium stearate, tourmalinite powder, resorcinol monobenzoate, 4-hydroxymethyl-2,6-di-tert-butylphenol, high-density polyethylene, low-density polyethylene, and linear low-density polyethylene. The second film layer contains polylactic acid, nano-silica, 3-aminopropyltriethoxysilane, lanthanum stearate, low-density polyethylene and linear low-density polyethylene. The dry farming agricultural district biological fully-degradable material has a double-layer structure and has the advantages of excellent waterproofness, fire resistance, tensile strength and elongation at break. When being used as mulching film, the dry farming agricultural district biological fully-degradable material can achieve excellent temperature regulation and water retention effects and is easily degradable; the problem that degradation rates of parts of conventional degradable mulching film available in the market are different can be effectively solved.

The invention provides a method for planting rose fresh flowers at a high temperature in summer and autumn. Through a process of land preparation, seeding transplantation, first-stage irrigation and fertilization, pruning, second-stage irrigation and fertilization, and picking, the growth adaptability of rose flowers in high-temperature high-moisture environments is improved. With respect to the method for planting rose fresh flowers at a high temperature in summer and autumn, the pruning mode, the fertilization mode, the irrigation mode and the picking processing mode are improved, the size of flower buds can be increased by more than 20%, at the same time, the fading period can be prolonged, the quality of goods can be improved, and the economic benefit can be increased by more than 30%.

The invention discloses a cultivation method for dry land full-film earthing hole sowing winter wheat later-crop replanted soybeans, and belongs to the technical field of cultivation of winter wheat later-crop replanted soybeans. The cultivation method comprises the steps of carrying out fertilizer application, deep tillage, rotary tillage, rake grinding and full-ground plastic film mulching on afirst crop of winter wheat according to technical regulations of full-film earthing hole sowing cultivation, and then carrying out hole sowing of the winter wheat in good time; after mechanically harvesting the winter wheat in a summer, remaining plastic films, wherein the stubble height is 2-3 cm; removing wheat straws; sealing damaged positions of the plastic films in time; and directly carryingout hole sowing of soybeans without tillage, wherein in a whole period of duration of the second crops, the plastic films are not removed until the second crop of soybeans are harvested. By the technology, after the first crop of winter wheat is harvested, procedures such as soil ploughing, rake grinding, rotary tillage before sowing and film mulching are omitted, the plastic film utilization efficiency is improved, mechanical loss and plastic film 'white pollution' are reduced, and purposes of saving costs, improving efficiency and implementing green cultivation are realized.

The invention mainly relates to a covering cultivation method for mulching films, in particular to a covering cultivation method for biodegradable mulching films in a semi-arid region. The covering cultivation method is mainly characterized by comprising the following steps of 1, designing in fields, 2, tidying land, ridging and flattening the ground 3, fertilizing, 4, covering the biodegradable mulching films, 5, sowing, 6, managing in the fields, 7, harvesting, and 8, ploughing and burying mulching film residues into soil at the depth of 20-30cm instead of collecting the mulching film residues after the crops are harvested. The land tidying and ridging are carried out 7 days before crops are sowed, the covering tension of the biodegradable mulching films is 1 / 6 to 1 / 8 of the tension of ordinary mulching films, the biodegradable mulching films are 3-5mm away from the ground, and the biodegradable mulching films are covered 7 days before sowing. The covering cultivation method has the advantages that due to the fact that the biodegradable mulching films have high air tightness, the covered mulching films can reduce soil moisture evaporation and increase land temperature, can increase soil moisture, accelerates crop growth and development, and improves crop yield. Compared with traditional cultivation (covering-free convection planting), a maturation stage of crops covered by the biodegradable mulching films can be brought 7-10 days forwards, and the crop yield and the moisture utilization rate can be respectively improved by 1-58% and 14-45%.

The invention relates to the technical field of production of mulching films, in particular to a high-photosynthetic-efficiency environment-friendly weather-proof silver-white-white three-layer composite mulching film and a preparation method thereof. The high-photosynthetic-efficiency environment-friendly weather-proof silver-white-white three-layer composite mulching film is formed by compounding a silver-gray outer film, a white middle film and a white inner film. The prepared composite mulching film comprises three kinds of linear low-density polyethylene with different properties, metallocene linear polyethylene, light stabilizing auxiliaries, B225-type composite antioxidants and ultraviolet light absorbers, and accordingly, the product has the advantages of high photosynthetic efficiency, high temperature, high soil moisture conservation performance, long service life and the like; after crop harvesting, old films still have high physical and mechanical properties, the tensile strength is slightly reduced, and the mulching films can be reused instead of replacement for each batch; the composite mulching film is quite easy to recycle and sort, and has high reutilization value;on the basis of ensuring heat insulation, soil moisture conservation, weeding and fertilizer efficiency conservation, effective reutilization of recycled resources is facilitated, and environmental pollution is reduced.

The invention discloses a method for producing a cut flower lily in a high-temperature stress environment. The method comprises the following steps: a, selecting a variety with strong disease resistance, unfreezing a seed ball and then putting in a refrigerator for germination and rooting; b, coating with two layers of shading nets with a shading coefficient of 70-75 percent above a greenhouse covered with a plastic thin film and planting the germinated and rooted seed ball in the middle and late July, wherein the soil coating thickness is 1-2 cm higher than the root system growth point of theseed ball; c, when a lily plant grows to 18-22 cm, performing secondary soil coating, wherein the soil coating thickness is 4-5 cm; d, when the lily plant grows to 40-45 cm, additionally applying a water-soluble fertilizer; e, when the lily plant grows to 50-55 cm, uncovering the shading net on the outer layer; f, after the lily plant is budded after 20 days, uncovering the shading net on the second layer and harvesting the cut flower lily. The method disclosed the invention can increase the plant height of the cut flower lily and make stems strong and flower buds grow well, thereby providinga feasible way for cultivation under the condition of high temperature and improving the economic benefits.

The invention relates to a planting method for radix scrophulariae. The method comprises the following steps of 1, land selection; 2, soil preparation; 3, base fertilizer application; 4, bedding; 5, transplanting, wherein the transplanting process is completed by adopting a semi-automatic transplanter; 6, topdressing, wherein the fertilization process is completed by adopting an automatic fertilization device, fertilization is performed on radix scrophulariae in the growth period so as to ensure nutrient supply to the radix scrophulariae, and then the growth speed of the radix scrophulariae isincreased; 7, weeding. In the land selection process, the land with the grass family or bean or pea family as the preceding crops is selected, continuous cropping of the radix scrophulariae on the same land is avoided, plant ash can be adopted as fertilizer, equivalently, base fertilizer is applied in advance, sufficient nutrients of soil are ensured, the soil is loosened in the soil preparationprocess, the air permeability is good, radix scrophulariae can conveniently absorb water, the hole forming process can be completed while transplanting is performed, and operation is convenient and rapid.