72results about How to "Not easy to dehydrate" patented technology

The invention discloses a temperature resistant salt tolerant high efficiency gel and a preparation method and application thereof. The preparation method is characterized in that the preparation method comprises the following steps: preparing a comb-shaped associated copolymer PAH containing macromonomers and functional hydrophobic monomers into an aqueous solution having the concentration of 0.1 to 4g / L, the crosslinking agent concentration of 0.01 to 1.0g / L, the surfactant concentration of 0.01 to 8mmol / L and the sodium sulfite thermal stabilizer concentration of 0.005 to 1.0g / L; adding the aqueous solution into a mixing container with a stirring device; stirring the aqueous solution evenly at the room temperature; regulating the pH value of the solution to be equal to between 4 and 11, and obtaining a temperature resistant salt tolerant high efficiency gel polymer solution system used for tertiary oil recovery and scavenge, displacement modification, profile modification or water shutoff. The polymer solution system has micro-crosslinking to form the gel during the flowage inside the oil reservoir. The gel has good elasticity, not easy dehydration, stable gelling performance, and excellent tackification, temperature resistance, salt tolerance, shearing resistance and ageing resistance.

The invention discloses acrylamide modified polymer micro-crosslinking gel and a preparation method thereof. The preparation method is characterized in that the method comprises the following steps that: acrylamide modified polymer PAE containing functional macro monomer is prepared into an aqueous solution with the concentration between 0.1 and 4g / L, the concentration of crosslinking agent between 0.01 and 1.0g / L, the concentration of surface active agent between 0.01 and 8mmol / L and the concentration of heat stabilizer sodium sulfite between 0.005 and 1.0g / L; the aqueous solution is added in a mixing container with a stirring device and is stirred evenly at room temperature; the pH value of the solution is adjusted between 4 and 11 to prepare a polymer solution system of the acrylamide modified polymer micro-crosslinking gel used for tertiary oil recovery and displacement, oil displacement modification, profile modification or water plugging; and the polymer solution system undergoes micro crosslinking during flowing inside an oil layer to form the gel. The acrylamide modified polymer micro-crosslinking gel has ideal elasticity, difficult dehydration, stable performance and excellent performances on tackifying, temperature resistance, salt resistance, shearing resistance and ageing resistance.

The invention discloses a pig feed additive. The pig feed additive comprises the following components in percentage by weight: 5-25% of lysine, 5-25% of betaine, 5-20% of micro elements, 10-60% of probiotics, 5-28% of an enzyme preparation, 5-29% of lactobacillin, 1-4% of gamma-aminobutyric acid and 10-20% of zeolite powder. By adopting the pig feed additive disclosed by the invention, the immunity and anti-infection abilities of pigs can be improved, the lean meat percentage can be increased, the growth speed of the pigs can be increased, and the pig breeding economic benefits can be increased.

An insulating system for external wall and its construction technology are disclosed. The system features that unique cement mate, insulating adhesive, alkali-resistant glass reinforced grid, special cutting tools, grinding tools and toothed plastering tool are used. Its advantages are high quality, short construction period, low cost and saving energy by more than 50%.

The invention discloses a preparation method of chondroitin sulfate, which comprises the following steps of: adding water until cartilage is immersed; adjusting the pH value to be 8-9 with alkali and preserving heat at a temperature of 55-60DEG C for 4-6h; adding 2709 alkali protease and stirring for 6-8h, raising the temperature to boiling and filtering to obtain a chondroitin sulfate solution; adding sodium chloride to the chondroitin sulfate solution; adding alcohol of which the volume is 2-3 times of that of the solution, standing for 6h and filtering to obtain chondroitin sulfate precipitate; adding the chondroitin sulfate precipitate into water and dissolving; meanwhile, adding sodium chloride to the water, adjusting the pH value to be 10-12, adding hydrogen peroxide which accounts for 1-3 percent of the weight of the solution, oxidizing for 6h and filtering to obtain filtrate; adjusting the pH value of the chondroitin sulfate filtrate to be 5-6, adding alcohol of which the volume is 4-6 times of filtrate for secondary precipitation to obtain the chondroitin sulfate precipitate; pouring the secondary chondroitin sulfate precipitate into a dehydration tank provided with an emulsifying machine; pumping alcohol of which the volume is 3-5 times that of the chondroitin sulfate precipitate into the dehydration tank; and carrying out suction filtering, collecting the precipitate and drying to obtain a chondroitin sulfate finished product. The chondroitin sulfate obtained by the preparation method disclosed by the invention has the advantages of loose texture, fine particles, easiness of dehydration and drying, low energy consumption, extremely-low residual organic solvent and short production period.

The invention provides a fermentation process of bean dregs, the bean dregs fermented after pretreatment, the material after the fermentation is subjected to dehydration working section to obtain finished products, the dehydration working section comprises the following steps that: the material after the fermentation is extruded so that moisture content of the material can reduce to 30-40%; the material is continually fed into a tube bundle hot-air drier for drying, the temperature of the tube bundle hot-air drier is controlled in a range from 50 to 70 DEG C so that moisture content of the material can reduce to 25-30%; the material is then fed into the hot-air drier for drying so that moisture content of the material can reduce to 13-15%, at last, the material is cooled by cold wind so that moisture content of the material can reduce below 12%. The invention uses the method of stepped dehydration to thereby shorten the time for dehydration and uses different dehydration methods at stages in which different moisture contents are present to thereby avoid the problem that when being directly dried by hot wind for dehydration at relatively high moisture content, the material becomes sticky and is liable to block, and to thereby enable dehydration of the material to be more even.

The invention discloses a preparation method of myriophyllum elatinoides silage feed. The method comprises the following steps of A, harvesting myriophyllum elatinoides; B, dewatering the myriophyllum elatinoides: dewatering the myriophyllum elatinoides until the water content is between 50 percent to 60 percent; C, mixing materials: mixing corn powder accounting for 10 percent to 20 percent of the total weight of the silage feed, a lactobacillus solution (containing plant lactobacilli and saccharomyces cerevisiae) accounting for 1.5 percent to 3.0 percent of the total weight of the silage feed and the dewatered myriophyllum elatinoides; D, performing bagging and sealing: encapsulating the silage feed by using an efficient respiratory membrane solid-state fermentation bags, and ensuring the oxygen-free and sundry-bacteria-contamination-free fermentation environment. The myriophyllum elatinoides with capability of efficiently governing the nitrogen and phosphorus pollution water bodies is used as main raw materials for preparing the silage feed, so that the gastrointestinal tract functions of animals can be improved; the intestinal flora balance is maintained; the effect of improving the immune system functions of poultry and livestock animals is finally achieved; the resource circulation utilization of nitrogen and phosphorus in an agroecological system is promoted; meanwhile, the popularization of a myriophyllum elatinoides ecological pollution control technology is greatly promoted.

The invention provides a functional temperature-resistant anti-salt profile control agent which comprises a functional acrylamide prepolymer, a cross-linking agent, a stabilizer, a performance regulator, a deoxidant and water. The functional acrylamide prepolymer is shown as a formula (I). The functional temperature-resistant anti-salt profile control agent disclosed by the invention is low in surface injection viscosity, controllable in gelatinization time, high in gelatinization strength and stable in performance, has excellent temperature-resistant anti-salt properties, has long effective stable period while acting on high-temperature (90-140 DEG C) or high-salt (40000-260000mg.L<-1>, Ca<2+>, Mg<2+>) oil deposit, can maintain excellent plugging strength for a long time, does not have anobvious dehydration sign, can obviously improve the oilfield development effect, and provides a reliable technical support for precipitation and oil increase of high water-cut oilfields in China. Thestructural formula is as shown in the specification.

The invention relates to a method for hydrothermal growth of a hydrated di-strontium-11-borate single crystal, which comprises selecting strontium salt and a boron-containing compound as raw materials, taking mineralizer solution or pure water as a dissolving medium, and preparing the hydrated di-strontium-11-borate single crystal through dissolution, hydration and crystallization of the strontium salt and the boron-containing compound in the hydrothermal medium. The specific steps are as follows: mixing the strontium salt and the boron-containing compound with the molar ratio of strontium and boron being 1:4-1:12, adding the mixture into a high-pressure reactor, and adding aqueous solution with 0-2.0mol / L of mineralizer with the filling degree of the high-pressure reactor being 50-80 percent; sealing the high-pressure reactor, placing the high-pressure reactor into the constant-temperature drying box with the temperature of 200-300 DEG C to keep the high-pressure reactor at the constant temperature for 3-14 days, switching off the power supply of the constant-temperature drying box, and lowering the temperature in the constant-temperature drying box to the room temperature; and taking out the product, washing the incompletely reacted raw materials with water, and drying the product, thereby obtaining the hydrated di-strontium-11-borate single crystal. The crystal has the advantage of powder frequency-doubling effect, and can not be easily deliquesced and dehydrated. Moreover, the operating conditions can be easily realized.

The invention discloses a Hong sen locust rooting agent. The Hong sen locust rooting agent comprises the following components in parts by weight: 10-30 parts of naphthylacetic acid, 10-30 parts of indolebutyric acid, 5-15 parts of chitosan, 2-7 parts of diazolidinyl urea, 6-20 parts of super absorbent resin, 2-8 parts of fulvic acid. The Hong sen locust rooting agent can promote the Hong sen locust to root by cutting, and also can enable the Hong sen locust not to be dehydrated, so that the quality and the cottage survival rate of the Hong sen locust are improved. Because the high absorbent resin is adopted by the rooting agent, dewatering of cuttings of the Hong sen locust difficultly occurs, so that the cottage survival rate is improved.

The invention provides a medical hydrogel and a preparation method thereof. The medical hydrogel is obtained by uniformly dispersing raw materials including methacrylate gelatin, polydopamine hyaluronic acid and first nanoparticles and carrying out a cross-linking reaction, wherein the weight ratio of the methacrylate gelatin to the polydopamine hyaluronic acid is (1-5): 1, and the first nanoparticles account for 0.05%-0.2% of the total weight of the methacrylate gelatin and the polydopamine hyaluronic acid; the first nanoparticles are obtained by dispersing beta-cyclodextrin modified grapheneoxide and N, N'-di-sec-butyl-N, N'-dinitroso-1, 4-phenylenediamine into an organic solvent according to a weight ratio of 1: (1.5-2.5), stirring and reacting for 8-20 hours in a dark place and then standing. The medical hydrogel has lasting antibacterial performance, improves drug resistance of antibacterial components, provides proper permeability for wound healing, enables a wound to be not prone to dehydration, has injectability and viscosity, and has the functions of being attached to the wound along with change of the shape of the wound and stopping bleeding.

The invention relates to a suspension inhibitor for preventing and controlling coal mine spontaneous combustion. The suspension inhibitor is prepared from 5 to 25 percent of ultra-high molecular weight sodium polyacrylate, 55 to 85 percent of inorganic suspension inhibitors, 5 to 20 percent of activating agents and 1 to 2.5 percent of penetrating agents through blending. The suspension inhibitor is added into water to be prepared into a water suspension; then, hilly sand or pulverized fuel ash is added to be prepared into a fire preventing and extinguishing inhibitor; the suspension inhibitor,the hilly sand (the pulverized fuel ash) and the water can be chelated to form a three-dimensional reticular structure; hilly sand (pulverized fuel ash) particles with great density are wrapped in the reticular structure, so that the suspension time is long; and the problems of hilly sand (pulverized fuel ash) settling, pipeline blockage and short water holding time of the fire preventing and extinguishing inhibitor are solved.

The invention discloses a factory cutting seedling raising method for pinus elliottii. The method comprises the steps of building a greenhouse, dressing cutting beds, preparing a matrix and seedling raising containers, placing the seedling raising containers, subjecting the cutting beds and the cutting matrix to sterilization and disinfection, scissoring and treating cutting slips, disinfecting the cutting slips, carrying out cutting, building low arched sheds and carrying out later-stage management, wherein the later-stage management comprises the steps of (1) sterilization, (2) water and fertilizer management and (3) light, humidity and temperature control. The method is characterized in that basal planes of the cutting beds are transparent, the cutting matrix is prepared from coco coir,peat, vermiculite and pearlite, the seedling raising containers are bottomless coverless cylindrical bodies, and the cutting slips are one-year-old semi-lignified tree shoots. The method has the advantages that the survival rate of cutting is high, the root system is developed, the cutting management is convenient, the labor intensity is low, the transportation of nursery-grown plants is portableduring afforestation, and the survival rate of afforestation is high due to lightweight-matrix-carrying transplanting; and excellent quality characteristics are maintained, so that the method is applicable to large-scale factory seedling raising, and the positive effect of meeting the requirements of man-made pinus elliottii forests on improved variety is achieved.

The invention provides an industrial sludge deep dehydration conditioning agent and a preparation method and application thereof, and relates to the technical field of sewage and sludge treatment. Theconditioning agent is prepared from rectorite, coal gangue, kaolin, biological bacteria, coconut shell fibers, cellulose acetate, chitosan, protease, lactobacillus plantarum, borax, cyanobacteria powder, iron sulfate, calcium carbonate, aluminum sulfate, citric acid and deionized water. The conditioning agent can effectively improve the dewatering performance of the sludge, realizes a low cost, is environmentally friendly, is non-toxic and harmless, does not cause secondary pollution to the environment, realizes a low dehydration cost, has good environmental benefits, is easy to use in industrial sludge deep dehydration and greatly reduces the moisture content of the sludge.

The invention discloses a method for preparing fluid gel by utilizing a formation temperature to form a blocking valve to block an air layer. The method comprises the following steps: a, preparing a stirrer; b, adding water into the stirrer, starting an impeller in the stirrer at normal temperature, and stirring the water; c, adding an initiation monomer and a cross-linking monomer while stirring the water, adding a gel initiator after the added initiation monomer and cross-linking monomer are dissolved, and continuously stirring to form gel blocking fluid; and d, pumping the gel blocking fluid into a shaft at projected depth to form fluid gel, wherein the water, the initiation monomer and the cross-linking monomer form a gel cross-linking system, the ratio of weight parts of the gel cross-linking system to the gel initiator is (10-30):1, and based on the total mass percentage of the formed fluid gel, the added initiation monomer accounts for 2-15 percent, the cross-linking monomer accounts for 0.1-5 percent, the gel initiator accounts for 0.1-2 percent, and the rest is water. The process is simple, and the prepared fluid gel is low in cost and has extremely high pressure resistance.

The invention discloses a method for preparing high calorific value fuel from municipal sludge and biomass synergistically. The method comprises the following steps: pumping municipal biochemical sludge into a conditioning tank, adding gardening wastes and cationic PAM (polyacrylamide) for conditioning, carrying out mechanical dewatering till a water content of 60%, further deeply drying the sludge by a multi-stage heat recycling air source heat pump till a water content of 15%, and putting additives into the sludge, pelletizing, thereby obtaining the high calorific value biomass fuel. Compared with the prior art, the method has the advantages that gardening greening crushed twigs and macromolecule environmentally-friendly type materials are adopted as swelling agents and conditioning agents, the cost of common chemical conditioning is reduced, secondary pollution is reduced, novel ways are provided for gardening wastes, sludge is deeply dried at a low temperature by the multi-stage heat recycling air source heat pump, the targets of energy recycling and 'treating waste with waste' are achieved, the energy is saved, the efficiency is improved, the sludge treatment cost is reduced,secondary pollution is reduced, and waste recycling and combination of social, economic and environment benefits in an environment treatment process are achieved.

The invention discloses a method for embedding, transplanting and domesticating Huai-yu Mountain alpine potato stems with buds. The method comprises the following steps: mixing the Huai-yu Mountain alpine potato stems with buds with a calcium-free ion improved MS culture solution (a) containing sodium alginate and sucrose to obtain a mixed solution; dropwise adding the mixed solution into an MS culture solution (b) containing chitosan oligosaccharide, graphene quantum dots, carbon nanotubes, calcium chloride and sucrose and carrying out embedding to obtain embedded balls of the Huai-yu Mountain alpine potato stems with buds; soaking the prepared embedded balls with the MS culture solution containing the chitosan oligosaccharide and the graphene quantum dots; soaking the soaked embedded balls with the MS culture solution containing the chitosan oligosaccharide and the carbon nanotubes; transplanting the embedded balls into a matrix and irrigating the embedded balls with the MS culture solution containing the chitosan oligosaccharide and the carbon nanotubes; after irrigating for 7 days, irrigating the embedded balls with the MS culture solution containing the chitosan oligosaccharide and the graphene quantum dots; after the stems with buds grow into complete plants, finishing domestication and transplanting the complete plants into a field for breeding. By adopting the method disclosed by the invention, the transplanting and domesticating survival rate of test-tube plantlets of Huai-yu Mountain alpine potatoes can be 98% or above.

The invention belongs to the technical field of drug sustained-release materials and particularly relates to a method for encapsulating slightly soluble drugs by ZnO-containing hydrogel beads. The method comprises: preparing carboxymethyl chitosan-ZnO nanoparticles in situ, adding the carboxymethyl chitosan-ZnO nanoparticles and slightly soluble drugs into an aqueous solution of sodium alginate and preparing spherical particles through calcium chloride as a crosslinking agent. The method is simple and fast and is free of any toxic substance. The hydrogel bead is a spherical particle, has a lowswelling ratio, good pH sensitivity and good sustained release properties, has a release ratio of less than 15% in a simulative gastric juice environment and can be fully released in 7-8h in a simulative intestinal fluid environment.

The invention discloses fluid gel for generating seal valve plugging air layers by virtue of formation temperature. The fluid gel is composed of the following ingredients in parts by weight: 10-30 parts of gel crosslinking system and 1 part of gel initiator, wherein the gel crosslinking system is composed of water, an initiator monomer and a crosslinking monomer; and counted by the total mass percentage of the fluid gel, the initiator monomer accounts for 2-15%, the crosslinking monomer accounts for 0.1-5%, the gel initiator accounts for 0.1-2%, and the balance is water. The fluid gel disclosed by the invention is simple in formula, low in cost and high in pressure resistance.

The invention discloses a method for preparing a super absorbent resin containing a composite plant growth regulator and a dehydrated Murashige and Skoog's (MS) culture medium. In the method, sodium o-nitrophenolate / sodium p-nitrophenolate, sodium fulvate and the dehydrated MS culture medium are added in the synthesis process of the super absorbent resin, and the super absorbent resin is used in place of agar as a culture medium coagulant for allowing the culture medium to reach a proper coagulability, supporting cultured tissues, allowing the nutrients to disperse in the super absorbent resin easily and improving the absorption rate of nutrients. Meanwhile, because the super absorbent resin has high water absorbing and retaining capacities and water absorbing and releasing reversibility, plant tissues can use water effectively, irrigation times is reduced, and water and labor are saved. The synthesis process is simple, the product contains the composite plant growth regulator, and thus, the resin has a promising application prospect and a high promotion value.

The invention discloses a method for polyploidy embedding induction of Jiangxi Qianshan Colocasia esulenla Schott. Single buds of Colocasia esulenla Schott are soaked in a culture solution containingcolchicine, chitosan oligosaccharide and graphene quantum dots; the soaked single buds are soaked in a culture solution containing colchicine, chitosan oligosaccharide and CNT; the soaked single budsare mixed with a calcium ion free improved culture solution containing sodium alginate and sucrose, and a mixture solution is obtained; the mixture solution is dripped into a culture solution containing the colchicine, chitosan oligosaccharide, graphene quantum dots, CNT, calcium chloride and sucrose for embedding; an embedded plant is inoculated in a solid culture medium for culture; Colocasia esulenla Schott single buds with variation are separated and inoculated into the solid culture medium for 3-4 times of subculture, and the polyploidy multiple shoots of Jiangxi Qianshan Colocasia esulenla Schott are obtained; and when the multiple shoots grow to 2-3 cm, the single buds are cut off and transferred to a rooting medium for culture, so that polyploidy test tube plantlets of Jiangxi Qianshan Colocasia esulenla Schott are obtained. The Colocasia esulenla Schott polyploidy embedding induction frequency reaches up to 86.4%.

The invention discloses a method for preparing chondroitin sulfate. The method comprises the following steps: adding water to immerse cartilage, adjusting the pH value to be 8-9 with alkali, and carrying out heat preservation at 55-60 DEG for 4-6 hours; adding 2709 alkaline protease, stirring for 6-8 hours, heating until boiling, and filtering to obtain chondroitin sulfate liquid; adding sodium chloride to the chondroitin sulfate liquid, adding ethyl alcohol which is 2-3 times of volume of the liquid, standing for 6 hours, and filtering to obtain chondroitin sulfate sediments; adding water to the chondroitin sulfate sediments for dissolving, simultaneously adding sodium chloride to water, and adjusting pH value to be 10-12; adding hydrogen peroxide which is 1%-3% of weight of the liquid, oxidizing for 6 hours, and filtering to obtain filtrate; adjusting the pH value of the chondroitin sulfate filtrate to 5-6, adding ethyl alcohol which is 4-6 times of volume of the filtrate, and participating for the second time, so as to obtain chondroitin sulfate sediments; pouring the chondroitin sulfate sediments into a dewatering tank with an emulsifier; pumping ethyl alcohol which is 3-5 times of volume of the chondroitin sulfate sediments into the dewatering tank, carrying out suction filtration, collecting sediments, and drying to obtain a chondroitin sulfate product. The chondroitin sulfate obtained by the method is loose in texture, small in particles, easy to dewater and dry, low in energy consumption, very low in organic solvent residue and short in production cycle.

The invention discloses a strawberry seedling culture tray, which comprises a trough body with the rectangular cross section, wherein the rectangular trough body comprises a trough bottom (1), two opposite long trough walls (2) and two opposite short trough walls (3), a plurality of through holes (4) are arranged on the trough bottom, a stripped bulge (6) with a groove (5) is respectively arranged at the upper edge of the two opposite short trough walls, the shape of one bulge is in embedded matching with an inner cavity of the other bulge, and a plurality of trays can be connected into a whole. The strawberry seedling culture tray provided by the invention can be used for the propagation production of strawberry creeping stem seedlings, and the placement and the management are convenient. Experiments prove that the young seedling emergence rate after the use of the strawberry seedling culture tray can reach 93.51 percent to 96.82 percent, the propagating factor can reach 1:39.7-1:77.8, the survival rate of the young transplanted seedlings can reach 96.7 to 98.4 percent, the strong seedling rate of the young transplanted seedlings can reach 87.7 to 93.1 percent, the values are respectively and obviously higher than those of a control group, the obtained young seedlings have the advantages that the flower bud differentiation is early, the seedling recovery is not needed after the fixed planting, the growth conditions are regular, the fruit setting is realized 30 days earlier, the yield is improved, and the economic benefits are obviously improved.

The invention discloses a method for preparing super absorbent resin containing fulvic acid sodium and an MS dry medium. In the process of synthesizing the super absorbent resin, the fulvic acid sodium and the MS dry medium are added, and the super absorbent resin replacing agar to serve as a coagulator of a culture medium, so that the culture medium has proper coagulability and has support function for the cultured plant tissues, nutrient substances are easy to disperse in the absorbent resin, and the nutrient absorption efficiency is improved. Meanwhile, the super absorbent resin has high water absorbing and retaining capacities and reversibility of water absorption and water release, so the plant tissues are facilitated to effectively utilizing water, watering frequency is reduced, and water and labor are saved. The synthesis process is simple; and the product also contains the fulvic acid sodium capable of regulating plant growth, so the product has wider application prospect and higher promotion value.

The invention belongs to the technical field of colloidal gel, and relates to carrageenan gel, in particular to Iota type carrageenan and Kappa type carrageenan mixed gel and a preparation method thereof. The invention discloses the Iota type carrageenan and Kappa type carrageenan mixed gel and the preparation method thereof. The Iota type carrageenan and Kappa type carrageenan mixed gel specially consists of the following components in parts by mass: 3-6 parts of Iota type carrageenan, 2-4 parts of Kappa type carrageenan, 1-2 parts of alanine, and 1000 parts of water. The preparation method comprises the following steps: performing swelling at normal temperature, performing heating swelling, performing heating blending and cooling the gel. According to the Iota type carrageenan and Kappa type carrageenan mixed gel disclosed by the invention, a low concentration carrageenan mixture of 0.5%-1.0% can form gel, and the prepared gel is high in transparency, moderate in hardness, elastic, not liable to dehydration, high in gel strength and good in storing stability at normal temperature. The method is simple in steps, convenient to operate, time-saving and labor-saving.

The invention discloses a pig feed and a preparation method thereof. The pig feed is prepared from the following raw materials: corns, wheat, bean pulp, bran, molasses, calcium hydrophosphate, salt, rapeseed dregs, bone meal, fish meal, bitter gourd, sugar beet pulp, loofah sponge, sesame oil, rice vinegar, mushroom freeze-dried powder, yeast powder, garlic powder, agastache rugosus, distillers' grains, lysine, oligosaccharins, bacillus subtilis, enzymic preparations, lactein and gamma-aminobutyric acid. The prepared pig feed can achieve effects of promoting the appetite of big pigs, increasing food intake and improving daily gain, so that the pigs are ruddy in skin and short, sparse and bright in hair, and the meat quality is well improved.

The invention relates to the field of methods for planting Polygala fallax Hemsl., and provides a method for planting Polygala fallax Hemsl. under a phyllostachys edulis forest. The defects that Polygala fallax Hemsl. obtained through a planting method in the prior art is low in planting survival rate and yield, and the forest utilization rate is low are overcome. The method includes the followingsteps of forest selection; 2, forest cleaning and preparation; 3, seedling selection; 4, application of the planting technology; 5, hole expansion and weeding; 6, fertilization; 7, defloration; 8, plant disease and pest control; 9, harvesting and storage.

The invention discloses a rooting agent for robinia pseudoacacia 'Hongsen'. The rooting agent for the robinia pseudoacacia 'Hongsen' is prepared from the following raw materials in parts by mass: 15-40 parts of naphthylacetic acid, 20-40 parts of indolebutyric acid, 6-35 parts of chitosan, 1-6 parts of diazolidinyl urea, 5-20 parts of high water absorbing resin, 2-8 parts of fulvic acid, and 0.5-1.5 parts of ethephon. The rooting agent for the robinia pseudoacacia 'Hongsen' provided by the invention can promote the rooting of cuttings of the robinia pseudoacacia 'Hongsen' and make the robiniapseudoacacia 'Hongsen' not easy to dehydrate, and improves the quality of the robinia pseudoacacia 'Hongsen' and the survival rate of the cutting of the robinia pseudoacacia 'Hongsen' and the formulaof the rooting agent contains the high water absorbing resin, so that the cuttings of the robinia pseudoacacia 'Hongsen' are not easy to dehydrate, the survival rate of the cutting is improved, and the rooting agent is more conveniently used.

The invention relates to the technical field of oil well water plugging used in oil exploitation, in particular to an acid-resistant strong gel plugging agent and a preparation method thereof. The acid-resistant strong gel plugging agent comprises, by weight, 3-10% of a main agent, 0.1-1.0% of an acid-resistant monomer; 0.1%-0.5% of an initiator; and 0.5%-1.5% of a cross-linking agent. The acid-resistant strong gel plugging agent provided by the invention is simple in preparation method, wide in raw material source, strong in plugging performance and good in acid resistance, and provides a newtechnical reserve for a chemical profile control and water plugging technology.