60results about How to "Lodging resistance" patented technology

The invention provides a production process of a biological-organic-inorganic ternary compound fertilizer which is prepared by the following steps: mixing crop stalks, such organic components as livestock manures and active biological agents, regulating the carbon nitrogen ratio from 26 to 35, PH from 5.5-8.2 and moisture from 40% to 65% according to the organic matter contents of the crop stalksand the livestock manures, fermenting the mixture at minus15-75 DEG C for 20-50 days and ensuring the living bacteria count to be 0.03-0.2 billion / g, carrying out turning and oxygenating, fermenting in deep tanks and grinding on the mixture to prepare the biological organic fertilizers, mixing the biological organic fertilizers with the inorganic fertilizers and trace elements and simultaneously adopting the low-temperature drying process after extruding granulation and the biological agent spraying and cooling technology. The method can greatly shorten the decay period, ensure little nutrientloss and little generating capacity of sour gases in the processes of fermentation and decay and complete decay and fermentation, can enhance the stress resistance of the crops, ensure obvious disease-resistant effects and high survival rates of specific functional bacteria and has wide application. Through field contrast tests, both the production and income are increased by 10-25% by applying the biological organic fertilizer.

The invention discloses a multi-effect soil conditioner and a preparation method of the multi-effect soil conditioner. The multi-effect soil conditioner comprises the raw materials, by weight, 600-740 parts of organic solid waste, 150-210 parts of flyash and 110-190 parts of polyamino acid superabsorbent. The 600-740 parts of the organic solid waste, the 150-210 parts of the flyash and the 110-190 parts of the polyamino acid superabsorbent are mixed sufficiently and dried to granulate. The soil conditioner has various advantages of being water-holding and fertilizer-saving, and increasing plant soil nutrient and improving soil physico-chemical property and the like. The soil conditioner can be applied to various qualitative soils and play a crucial role in restoring special soils such as high level of fluoride soil and clayey soil, and also play a crucial role in wind prevention and sand fixation.

The invention provides a rice ridge culture salt-avoiding water-saving planting method of severe soda saline-alkali soil. The characteristic that pH value and EC of the position of a ridge waist of a severe soda saline-alkali area are the lowest is utilized, rice seedlings are transplanted at the position of the ridge waist, damage of salt to rice root systems is avoided, and the environment suitable for normal growth of rice is created. The rice ridge culture salt-avoiding water-saving planting method of the severe soda saline-alkali soil solves the problems that the rice planting survival rate of the severe soda saline-alkali soil is low, growth of the rice is subjected to saline and alkaline limitation, and the like. The rice ridge culture salt-avoiding water-saving planting method of the severe soda saline-alkali soil is low in cost, reduces harrowing measures, improves soil, increases ground temperature, expands effective ploughing area, and is of great importance for increasing rice yield.

The invention relates to an anti-crumpling terylene carpet and a weaving method thereof. In the method, a fusant of a terylene material is extruded and molded through flat spinneret holes in crossed arrangement on a spinning plate, is subjected to prestretching to form pre-oriented yarn beams POY of flat terylene and is further subjected to prestretching to obtain draw textured yarn beams DTY of the flat terylene; the DTY beams consists of flat terylene filaments in crossed arrangement; the flat terylene DTY beams are used as surface yarn; the terylene FDY beams or the terylene DTY beams are used as bottom yarn; the surface yarn and the bottom yarn are woven into greige cloth of a terylene carpet; the greige cloth is subjected to special after-finishing to obtain the anti-crumpling terylene carpet which has more excellent anti-crumpling, lightweight and heat insulating properties compared with the prior terylene carpet.

The invention discloses a sea-island fibre and a preparation method thereof. A PTT (polytrimethylene terephthalate) slice is taken as an island component, a COPET (copolyester) slice is taken as a sea component, the two raw materials are respectively dried, extruded and molten, then the melts are fed into a spinning box and then are extruded out after being accurately metered by a metering pump, the island component is uniformly distributed into the sea component, the island component and the sea component are sprayed out from a same spinneret orifice, then cooling, moulding, oiling, drawing based on a silk guiding roller, winding and silk doubling are carried out to obtain a PTT sea-island fibre, the breaking strength of the fibre is 2.8-3.7cN / dtex, the breaking elongation is 57-62%, and the evenness uster value is less than 1.3%; and the filament number of the island component PTT is 0.05-0.20DPF. The sea-island fibre product not only has the characteristics of a common sea-island fibre but also has the characteristics of high elasticity, lodging resistance, high dyeing degree, high colour fastness, bright finished product colour, no wrinkling, easy care and memory function, thus the sea-island fibre is an ideal fibre used for a top-grade garment material and has great market potential.

The invention relates to an organic fertilizer, in particular to an organic foliar fertilizer and a preparation method thereof. The organic foliar fertilizer is characterized by being prepared from the following raw materials in parts by weight: 200-800 parts of fulvic acid, 5-15 parts of urea, 20-80 parts of monopotassium phosphate, 5-15 parts of magnesium sulfate, 2-10 parts of zinc sulfate, 2-10 parts of boron sulfate, 2-10 parts of calcium oxide, 200-800 parts of brown sugar and 500-1500 parts of alimentary acetic acid. The organic fertilizer prepared from the raw materials in proportion contains various nutritional components essential to crop growth, is convenient for crops to absorb, has obvious effects of increasing both yield and income and resisting lodging, damages from diseases and insect pests and premature senility and can alleviate land pollution.

The invention discloses a biological bactericide chelerythrine suspending agent and a preparation method thereof. The biological bactericide is mainly prepared from chelerythrine, sodium lignin sulfonate, sodium dodecyl benzene sulfonate and glycol in a certain weight ratio. The biological bactericide has a high-efficiency bactericidal and disease preventing properties, and is wide in application range and good in effect for controlling crop diseases and pests.

The invention provides a method for culturing italian ryegrass, and belongs to the technical field of plantation, and especially relates to a culture technique for ryegrass. The invention provides the method for culturing italian ryegrass, and the method is easy in planting, convenient in management, high in yield, and easy in harvesting. The method for culturing italian ryegrass is characterized by comprising the following steps: 1, in sowing time, italian ryegrass Hercules can be sown in spring and autumn, combining with rain or irrigation, sowing after rain can easily obtain full stand; 2, seeding rate of the italian ryegrass Hercules being related to local natural conditions, soil conditions, sowing methods, and utilization objectives; 3, sowing method including: (1) sowing in drill, specification being 15-30 cm of line spacing and 5-10 cm of sowing width, (2) performing broadcast sowing, broadcast sowing being a most commonly used simple sowing method for farmers; 4, irrigating and draining, the italian ryegrass Hercules preferring wet and cannot stand waterlogging; 5, applying fertilizer, according to seedling conditions, and dressing a nitrogenous fertilizer once respectively in a trefoil stage and a tillering stage after seedlings emerge.

The invention discloses a natural mineral fertilizer containing nano silicon and a manufacturing method thereof. The method comprises the following steps: mixing the following raw materials in parts by weight: 45-90 parts of ground phosphorite, 5-50 parts of dolomite and 1-10 parts of assistant, totaling 100 parts; and grinding, stirring, carrying out high-temperature calcination to activate the mixture, quenching with water for shock cooling, and pulverizing the product to obtain the fertilizer. The fertilizer comprises the following effective components: 10-20% of phosphorus pentoxide, 5-30% of effective calcium, 10-28% of effective silicon and 5-15% of effective magnesium; and the nano silicon accounts for 30-80% of the effective silicon. The natural mineral fertilizer containing nano silicon fully and effectively utilizes the low-grade phosphate ores in China, provides secondary and minor elements for crops, regulates and improves the crop growth mechanism, regulates the pH value of the soil, improves the soil structure, improves the physicochemical properties and biochemical properties of the soil, enhances the availability of the fertilizer, reduces the fertilizer consumption, and prevents the crops from absorbing heavy metals.

The invention discloses an organic fertilizer and a preparation technology thereof. The organic fertilizer is prepared from the following raw materials in parts by weight: 15 to 20 parts of paddy rice straw, 10 to 15 parts of corn straw, 10 to 15 parts of soybean straw, 5 to 15 parts of rapeseed cake meal, 6 to 9 parts of urea, 15 to 20 parts of diammonium phosphate, 10 to 20 parts of potassium dihydrogen phosphate, 5 to 10 parts of ferrous sulfate, 5 to 10 parts of manganese sulfate, 15 to 25 parts of cow dung, 20 to 40 parts of duck manure, 15 to 20 parts of chicken manure, and 12 to 20 parts of pea powder. The organic fertilizer contains elements such as nitrogen, phosphor, potassium, and the like, and a large amount of organic substances, is capable of promoting the fruiting and maturing of crops, and at the same time can enhance the performance of crops on preventing lodging, hot wind, and drought. Furthermore, the fertilizer can loosen soil, relieves the phenomenon of soil hardening, improves the fertilizing performance of soil to achieve the goal of increasing yield, reduces the damage of chemical fertilizer to soil, and provides balanced and enough nutrients for the growth of crops. The investment is low, and the yield is high. Moreover, the quality of crops is improved, and the economic benefit is increased therefore.

The invention relates to an organic fertilizer, in particular relating to an organic zinc fertilizer which is prepared from the following raw materials in parts by weight: 200-800 parts of 70% sodium humate, 5-15 parts of zinc sulfate, 20-80 parts of monopotassium phosphate, 200-800 parts of brown sugar and 500-1500 parts of alimentary acetic acid. By using the organic zinc fertilizer, the crops yield can be increased, and the cold resistance and acid resistance of crops can be improved. The organic zinc fertilizer contains nutrition constituents for the growth of the crops, and can be used for promoting the quick absorption of crops, and has the obvious fertilizer effects such as lodging resistance, pest resistance and anti-saline effect.

The invention discloses multicompound fertilizer and a method for making the same. The fertilizer is made from compound mixed major elements, medium elements, minor elements and beneficial element, wherein the major elements comprise nitrogen, phosphorus and kalium; the medium elements comprise sulfur, calcium and magnesium; the minor elements comprise ferrum, zinc, manganese, boron, cuprum and chlorine; and the beneficial element is silicon. The multicompound fertilizer effectively balances the content of each nutrient so as to jointly promote the sound growth of crops; the manufacturing cost per ton of the fertilizer is at least 600 yuan lower than the prior ordinary compound fertilizer containing 45 percent of nitrogen, phosphorus and kalium; the fertilizer is suitable for crops and animals such as grain, fruit, sugarcane, vegetable, flower and grass, tree, edible fungus, fish and shrimp; meanwhile, the fertilizer has excellent effects in increasing both production and income with production increase of between 15 and 50 percent in general, the highest being 60 percent; moreover, crops can mature 3 to 7 days earlier, and can resist drought, lodging and plant diseases and insect pests, etc.; therefore, the multicompound fertilizer is a controlled release multicompound fertilizer with excellent effects.

The invention discloses a hybrid rice breeding method for lowering seed production cost. A target restorer line with drooping leaf character is bred, test cross is carried out on the target restorer line with drooping leaf character and a sterile line, the lamina of the restorer line does not form hinder when the pollen of the restorer line spreads to the sterile line, and thus the lamina of the restorer line can be free from being cut off manually. The invention saves manpower and has good pollen spreading effect.

The invention discloses a production method for special fertilizer used for peanuts, belonging to the field of production of composite fertilizer. The special fertilizer is prepared from 22 to 24% of dried night soil of livestock and poultry, 10 to 12% of plant straw, 8% of leftovers of monosodium glutamate, 1% of an organic fertilizer starter, 1% of a deodorant, 15% of urea, 19% of monoammonium phosphate, 15% of potassium chloride, 3% of calcium carbonate, 1% of zinc sulfate, 1% of ferrous sulphate, 1% of ammonium molybdate and 1% of borax through crushing, fermentation and blending. The prepared special fertilizer contains organic components, nitrogen, phosphorus and potassium essential for peanuts and trace elements like sulfur, iron, zinc, molybdenum, calcium and boron; through long-term usage of the special fertilizer, nutrient balance of soil is effectively maintained, the physical and chemical properties of soil are improved, soil fertility is enhanced, and soil aggregates and is hard to harden and capable of resisting lodging, insect diseases and the like; and the special fertilizer is applicable to topdressing in the flowering stage of peanuts.

The invention aims to provide an easy-to-dye sea island PTT filament. COPET slices are used as sea components, and PTT slices and copolyamide master batches are used as island components, wherein in the island components, the copolyamide master batches account for 2-8% of PTT by mass; as for copolyamide, first, binary acid and diamine are subjected to condensation polymerization to prepare polyamide, then sulfonate is added, and the copolyamide with sulfonic acid groups is formed. The elongation irregularity of the filament can be controlled below 4%, the utilization rate of dyeing is increased by 29% and increased to 42.6%, the dyeing time is shortened by 15 minutes, the reduction amplitude reaches 37.5%, meanwhile, discharged wastewater can be reduced, resources are saved, and environmental friendliness is realized. The adverse factors of high dyeing cost, high usage amount of dye, poor color fastness of finished products, and influences on the environment in the existing sea islandfilament production are avoided.

The invention relates to a corn growth promoting agent containing phosphogypsum, which comprises phosphogypsum, zinc sulfate, copper sulfate, manganous sulfate and humic acid according to proportion by weight ratio of 1000:(3-10):(0.5-4):(0.5-3):(1-5). The method for preparing the corn growth promoting agent containing the phosphogypsum comprises the steps of: pulverizing dried dregs drogs of phosphogypsum, zinc sulfate, copper sulfate, manganous sulfate and humic acid to 200-400 meshes for standby later use; and mixing the gypsum powder containing certain amount of phosphorus with the pulverized zinc sulfate, copper sulfate, manganous sulfate, humic acid and the like to obtain a mixture of the corn growth promoting agent. The invention aims to solve the problem of environment pollution caused by a phosphorous chemical waste of, phosphogypsum, and to realize regeneration and utilizationthe recycling of environmental pollutants as resources. The corn-dedicated growth promoting agent containing the phosphogypsum recycles is produced by an industrialized process, and the industrial drogs of the phosphogypsum, as an industrial waste, is regenerated and utilized as a resource by industrialized production to provide fertilizers required by for agricultural production. The corn growth promoting agent containing the phosphogypsum can improve and increase productivity of soil, promote corn growth and improve corn quality.

The invention relates to a high-efficient wheat seed dressing agent, and belongs to the technical field of agriculture. In order to overcome the defects that a wheat seed dressing agent is large in environmental pollution and is non-comprehensive in effects in the prior art, the invention provides the high-efficient wheat seed dressing agent. The seed dressing agent comprises a biocontrol substance and varied trace elements of a plant source and other active substances, so that the usage quantity of the seed dressing agent is greatly reduced, the high-efficient wheat seed dressing agent has the advantage of lodging resistance, and prevents worms such as mole crickets and ants from damaging seeds, the antibacterial property of wheat is improved, and the high-efficient wheat seed dressing agent has a good agriculture application prospect.

The invention relates to an intelligent environment-friendly fertilizer synergist which is prepared from main materials and auxiliary materials by using a conventional process. The main materials contain the following materials by weight percent: 80-90% of attapulgite powdered ore and 10-20% of potash fertilizer. The auxiliary materials contain the following materials: biomass the weight of which is 0.1-0.3% of the total weight of the main materials and polypeptidase the weight of which is 0.2-0.4% of the total weight of the main materials. The fertilizer synergist is an environment-friendly product which is non-toxic, pollution-free, degradable, hormone-free and free from any side effect. If the fertilizer synergist is continuously used, the soil quality can be improved, the immunity of crops can be increased, and the crops have the unique effects such as anti-ageing effect, disease resistance, stress resistance, lodging resistance, and the like; and meanwhile, the investment of farmers can be reduced without changing the fertilizing method.

The invention discloses a rice gene OsPGSIP1. The rice gene OsPGSIP1 has a nucleotide sequence represented by SEQ ID NO.1, or has a coding sequence represented by SEQ ID NO.2; or the rice gene OsPGSIP1 has an amino acid sequence represented by SEQ ID NO.4. The deficiencies in the prior art are overcome, the rice OsPGSIP1 gene is overexpressed in rice Zhenshan 97B, the OsPGSIP1expression level of atransgenic plant increase, and the thousand kernel weight, the seedling stage biomass, the cellulose content and the hemicellulose content increase; when the expression of the OsPGSIP1 gene in the Zhenshan 97B is suppressed, the expression level of OsPGSIP1 in the transgenic plant decrease, and the chlorophyll content and the nitrogen content in leaves increase; and introduction of alleles of OsPGSIP1 derived from wild rice ACC10 into the Zhenshan 97B can significantly increase the seedling stage biomass, the thousand kernel weight, the cellulose content, the hemicellulose content and the stem mechanical strength of the Zhenshan 97B.

The invention provides a wheat seed selection and cultivation technology, belongs to the field of agriculture, and especially relates to a wheat cultivation technology. The invention provides the wheat seed selection and cultivation technology which improves wheat disease resistance and increases wheat ears. The wheat seed selection and cultivation technology is characterized by comprising the following steps: 1, performing fine land preparation, applying sufficient base fertilizer, performing rotary tillage for two times, sowing, after sowing, pressing with weight; 2, appropriately sowing at proper time, preferably sowing from 25 September to 5 October; 3, performing winter irrigation at proper time, seeding safe wintering protection generally beginning when average temperature is 7 DEG C to 8 DEG C, and ending when average temperature is about 5 DEG C, at the time, night freeze melting in the day and winter irrigation being just in time; 4, watering jointing flowering liquid, to protect spikes and increase grain number, applying a jointing fertilizer again, to effectively improve percentage of earring-tillers and increase ear grain number. The watering jointing flowering liquid is an important measure to improve yield of wheat, and can satisfy requirement of wheat on water in a later stage, and reduces sterile florets and spikelet, increases ear grain number, improves grain weight, and realizes water-saving efficient cultivation.

The invention discloses a synergistic agent and a preparation method thereof, wherein the synergistic agent comprises the following raw materials according to proportion by weight: 70.8-87.5 parts of stone potassium, 3-8 parts of polyaspartic acid, 3-8 parts of maleic anhydride, 0.3-0.5 parts of azone, 5-10 parts of urea or ammonium hydrogen carbonate, 0.4-0.7 parts of d bacteria liquid, 0.3-0.8 parts of EDTA (Ethylene Diamine Tetraacetic Acid) and 0.2-0.5 parts of n-butyl alcohol. The preparation method of the stone potassium comprises the following steps: respectively crashing 50 parts of zeolite ore, 20 parts of phosphorite and 30 parts of leopoldite into 100-200 meshes and then uniformly mixing so as to obtain a mixture; taking 73.5-87.3 parts of mixture, 2-4 parts of urea, 2-5 parts of phosphorus pentoxide, 1-2 parts of potassium sulfate, 0.2-0.5 parts of ammonium molybdate or sodium molybdate, 1-2 parts of manganous sulfate, 3-6 parts of ferrous sulfate, 1-2 parts of zinc sulfate, 1-2 parts of sodium borate, 0.5-1 parts of copper sulfate and 1-2 parts of fulvic acid; and stirring and sealing up for keeping standby. The preparation method of the bacteria liquid comprises the following steps: uniformly mixing colon bacillus, Fusarium moniliforme, Corynebacterium pekinense, Streptomyces jingyangensis, Bacillus megatherium, Bacillus mucilaginosus and Streptomyces according to a proportion of 0.5%: 0.5%: 0.5%: 0.5%: 0.5%: 0.5%: 0.5%. The synergistic agent is multipurpose, nutritious, low in cost, non-toxic, nuisanceless and free of residue.

The present invention relates to a polyamide 66BCF carpet yarn, which is prepared from raw materials containing polyamide 66 chips and additives by a process route comprising spinning, thermal stretch, hot air jet texturing, air cooling and winding. The polyamide 66BCF carpet yarn provided by the invention has advantages of good fluffiness, lodging resistance, wear resistance and static resistance.

The invention relates to the technical field of agricultural microorganisms, and particualrly relates to a microbial mixed inoculant for promoting soybean growth and application thereof. The microbial mixed inoculant comprises fermentation liquor of azospirillum Brazii and hydrogenophilus paresis, wherein the concentration of the azospirillum Brazii is 1 * 10<6>cfu / ml-1 * 10<10>cfu / ml, and the concentration of the hydrogenophilus paresis is 1 * 10<6>cfu / ml-1 * 10<10> cfu / ml. The microbial mixed inoculant can stimulate plant cells to secrete various growth hormones, root increase, rooting, root strengthening and root capillarity are promoted powerfully, the length or width of the microbial mixed inoculant is increased, the water and fertilizer absorption capacity of crops is enhanced, the crops have the effects of being long and thick in stem, resistant to lodging and the like, then the yield of the crops is increased, and the problem that farmers abuse or use chemical fertilizer for a long time is solved.

The invention relates to a multifunctional medicinal fertilizer and applications thereof. The medicinal fertilizer is prepared by respectively mixing biopesticide and chemical pesticide through taking a compound fertilizer as a carrier and at least one of trace element fertilizers as a carrier; the compound fertilizer is a nitrogen fertilizer, a phosphorous fertilizer and a potassium fertilizer; the biopesticide comprises microorganisms and fresh ginger; the chemical pesticide comprises 95% of ethiofencarb sodium salt, 3% of carbofuran granules, and 15% of Lecaolong wettable powder. The applications of the multifunctional medicinal fertilizer comprise the steps: evenly mixing the biopesticide and chemical pesticide with the compound fertilizer or the trace element fertilizer, and applying the fertilizer after rice seedlings are transplanted for three to five days and when 3-5cm water is kept in a rice field. The yield of rice can be greatly increased only by applying the multifunctional medicinal fertilizer once, and the multifunctional medicinal fertilizer also has multiple functions of insect killing, weeding, scarification, disease prevention, growth assistance, drought resistance, cold resistance, and lodging resistance, as well as prevention and treatment to schistosoma, oncomelania and ovum, and the like.

The invention relates to a pesticide-fertilizer mixing agent for oilseed rapes, which is prepared by mixing raw materials with following components and weights: for oilseed rapes per mu, 43-55 g of 50% procymidone wettable powder, 85-120 g of potassium dihydrogen phosphate, 0.4-0.8 g of 15% multi-effect triazole, and 0.1-0.4 g of an abscisic acid. The pesticide-fertilizer mixing agent disclosed by the invention achieves the functions of simultaneously preventing and treating the lodging of oilseed rape plants, sclerotinia rot of colza, and premature senescence, and solves the problems that farmers choose and use pesticides difficultly; and through the simultaneous application of pesticides and fertilizers, the operation links are reduced, the labor intensity is lowered, the production cost is reduced, the increasing of the rapeseed yield is promoted, an effect of increasing both production and income can be achieved, and thus the popularization and application of the pesticide-fertilizer mixing agent in agricultural production are facilitated.

The invention disclosesa press device of a seeding machine for conservation tillage. The press device comprises a press wheel fixing rack connected with a rack, wherein an initiative rotation type press wheel is arranged on the press wheel fixing rack, a drive mechanism for driving the press wheel to rotate is arranged on a press wheel axle, the press wheel comprises a furrow shape pressing wheel, seedling strip press rollers are symmetrically arranged on two sides of the furrow shape pressing wheel which is a V-shaped sharp wheel, the seedling strip press rollers are tapered rollers, and thick ends of the tapered rollers are connected with the V-shaped sharp wheel. The press device can form furrow and furrow ridge structures on earth's surface after sowing without soil plowing while normal seedling strip press work is finished, requirements of conservation tillage are met, crop ventilation and drainage are facilitated, the lodging resistance effect is better, crop yield can be increased, and the planting benefit can be increased.

The invention provides a fulvic acid chelated fertilizer, which comprises the following raw materials in parts by weight: 20-50 parts of urea, 20-40 parts of monoammonium phosphate, 15-30 parts of potassium chloride or potassium sulfate, 18.75-25 parts of fulvic acid, 0.1-0.3 part of a chelating agent and 0.4-0.8 part of an anti-hardening agent. The invention also provides a preparation method ofthe fulvic acid chelated fertilizer. According to the invention, the fulvic acid chelated fertilizer is rich in fulvic acid, and is added with a strong chelating agent, so that the fertilizer truly plays a chelating role, and crops can absorb various trace metal nutrient elements easily; the fulvic acid chelated fertilizer contains macroelements nitrogen, phosphorus and potassium required by plantgrowth, can supplement macroelements, medium elements and trace elements required by crop growth, has the effects of resisting diseases, insects, lodging, continuous cropping, cold and drought, improving crop quality, increasing fruit volume weight and the like, and finally achieves the purposes of increasing yield and income and improving soil.

The invention discloses a bactericide for controlling apple altermaria leaf spots, which is characterized in that the bactericide comprises iprodione and tebuconazole; the weight percentage of iprodione to tebuconazole is (40 to 10):(20 to 5); and in addition, the bactericide is characterized by obvious sterilization effect, quick effectiveness of drug properties, long duration of drug action and no residues compared with conventional bactericides by adopting the technical scheme.

The invention discloses a production process for a three-component composite hollow viscoelastic fiber with a specially-shaped section. The production process comprises the following steps: by taking high-viscosity melt, low-viscosity melt and low-melting-point melt as raw materials, and adopting a special spinneret plate, spinning; after the high-viscosity melt, the low-viscosity melt and the low-melting-point melt are sprayed out of the spinneret plate, separately bonding the high-viscosity melt and the low-viscosity melt which flow through four end parts of two inner arc-shaped waist holes, bonding the high-viscosity melt and the low-viscosity melt which flow through the same inner arc-shaped waist hole, thereby forming a cavity by the high-viscosity melt and the low-viscosity melt which flow through two inner arc-shaped waist holes, adhering low-melting-point melt which flows through an outer arc-shaped waist hole in a hollow tube formed by the high-viscosity melt and the low-viscosity melt; cooling, loading oil, stretching and winding, thereby obtaining a precursor fiber of the three-component composite hollow viscoelastic fiber with the specially-shaped section; and obtaining the three-component composite hollow viscoelastic fiber with the specially-shaped section and having different length outlines through different back spinning processes.