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108results about How to "Yield impact" patented technology

Process for preparing microbe oil

The invention relates to a microbial oil preparation method, in particular to a microbial oil preparation method taking jerusalem artichoke tubers as the raw material. After wash, crush or slicing, pulp conditioning or water extraction, the same liquid mixture or extracted fluid is gained; an oil-producing microorganism live bacteria solution is inoculated to a sterilizated solid-liquid mixture or the extracted fluid, is cultivated by ventilation shake, and is fermented until the concentration of total reducing sugar in fermenting mash decreases below 1 per cent; the oil-containing thallus is collected, and the microbial oil is extracted by a regular organic solvent extraction method. The invention can decreases the microbial oil raw material cost, features the simple technique and high oil yield and 5.0 to 10.0g dry fungus and 2.5 to 5.0g microbial oil can be gained from per 100g fresh jerusalem artichoke tubers (with 70 per cent to 80 per cent water content).
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Green extraction process for artemisinin

The invention discloses a green extraction process for artemisinin, and relates to the field of drug production. The process comprises the following steps: (1) drying of raw materials, that is, putting the raw materials into drying equipment for drying; (2) primary processing of artemisinin, that is, putting the dried raw materials into an extraction tank, adding petroleum ether, heating the extraction tank, carrying out countercurrent extraction, allowing the extract to flow out from the extraction tank, standing the extract to obtain a supernatant, allowing the supernatant to pass through asilica gel column, eluting the silica gel column with petroleum ether, collecting artemisinin fractions, putting the artemisinin fractions into a concentrating tank for concentration until crystals are precipitated, putting the obtained concentrate into a crystallizing tank for crystallization, carrying out filtering to obtain crystals, and drying the crystals so as to obtain crude products of artemisinin; (3) refining of artemisinin, that is, dissolving the crude products of artemisinin in an alcohol precipitating tank with ethanol, wherein the ethanol with a concentration of 93 to 95% is 65to 75 times the amount of the crude products, standing the solution, taking the supernatant of the solution for secondary filter, concentrating the filtrate in the concentrating tank, standing the concentrate for crystallization, carrying out filtering to obtain crystals, and drying the crystals under vacuum so as to obtain refined products of artemisinin.
Owner:GUANGXI XIANCAOTANG PHARMA

Method for reducing emission of N2O of dry farmland soil

The invention belongs to the technical field of greenhouse gas emission reduction of farmland ecosystems, and in particular relates to a method for reducing emission of N2O of dry farmland soil, which comprises the step of: adding a nitrification inhibitor of dicyandiamide and / or 1,2,4-triazole in a nitrogen manure, wherein the dicyandiamide is 2-12 thousandths of the weight of nitrogen in the manure and the 1,2,4-triazole is 1-8 thousandths of the weight of nitrogen in the manure. By adding the nitrification inhibitor of the dicyandiamide and / or the 1,2,4-triazole, and the like in the nitrogen manure of urea, and the like, the invention achieves the purposes of inhibiting the conversion of the nitrogen by the soil nitrification and greatly reducing the emission of the N2O of the dry farmland soil in China, can ensure that the emission of the N2O of the brunisolic soil in the northeast of China, which is suitable for planting crops of corn, bean, wheat, and the like, is reduced by 34-86 percent through field observation at the crop growth period, and has no remarkable influence on the yield of the crops.
Owner:SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI

Method for synthesizing 3-methyl-3-butene-1-ol

The present invention provides a method for synthesizing 3-methyl-3-butene-1-ol. The method comprises the following steps: pressurizing a raw material, a formaldehyde methanol solution, to 15-22 MPa, heating to 150-200 DEG C, and continuously feeding the solution, in a spray form, into a reactor after achieving a near-critical state; and meanwhile pressurizing another raw material, isobutylene, to 15-22 MPa, heating to 220-300 DEG C and continuously feeding into the reactor. The raw material formaldehyde methanol solution and the raw material isobutylene react in the reactor under conditions of temperature of 220-300 DEG C and pressure of 15-22 MPa. According to the method for synthesizing 3-methyl-3-butene-1-ol provided by the present invention, occurrences of formaldehyde self-polymerization and disproportionation reaction are reduced, and the product yield is improved. The reaction rate is increased, and the reaction effect is improved.
Owner:HANGZHOU ZJU HOLLEY TECH

Extraction technology of artemisinin

The invention relates to an extraction technology of artemisinin, and belongs to the technical field of natural plant extraction. The extraction technology comprises the following steps: (1) drying raw materials: putting the raw materials in a drying facility to dry the raw materials; (2) primary preparation of artemisinin: putting the dried raw materials in an extraction tank, adding petroleum ether into the extraction tank, heating, carrying out reflux extraction, discharging the liquid extract from the extraction tank after the reflux extraction, allowing the liquid extract to stand still for a while, collecting the supernate, making the supernate go through a silica gel column, then washing the silica gel column by petroleum ether, collecting the fractions containing artemisinin, transferring the fractions to a condensing tank, condensing the fractions, transferring the condensed liquid to a crystallization tank when the liquid in the condensing tank start to crystallize, carrying out crystallization in the crystallization tank, filtering to obtain the crystals, and drying the crystals so as to obtain crude artemisinin; (3) artemisinin refinement: placing the crude artemisinin in an alcohol-precipitation tank, dissolving the crude artemisinin by ethanol with a concentration of 85-95%, wherein the volume of the ethanol is 60 to 70 times of that of the crude artemisinin, allowing the solution to stand still for a while, collecting the supernate, subjecting the supernate to fine filtration, transferring the filtrate to a condensing tank, condensing the filtrate, allowing the condensed filtrate to stand still so as to carry out crystallization, filtering to obtain the crystals, and finally drying the crystals in vacuum so as to obtain refined artemisinin.
Owner:QINGDAO ZHONGREN ZHIYE BIOTECH

N2O emission reduction method of northern dryland farmland soil

The invention belongs to the technical field of emission reduction of greenhouse gases in farmland ecological systems, and in particular relates to an N2O emission reduction method of northern dryland farmland soil. The N2O emission reduction method disclosed by the invention comprises the following steps of: applying 2-18 m<3> / ha of organic fertilizer on dryland farmland soil to be processed in late autumn season; and reducing 10-50% of applying amount of nitrogen manure in the seasons of seeding and growing crops in the next year, so that the N2O emission of soil is obviously reduced. According to the invention, due to the manner of additionally applying organic fertilizer in autumn and reducing the applying amount of nitrogen manure, the purposes of increasing crop yield or not reducing yield and reducing N2O emission of the northern dryland farmland soil simultaneously are achieved.
Owner:SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI

Method for culturing wheat for garden agriculture

The invention discloses a method for cultivating wheat for garden agriculture. (a) soaking wheat seeds in lime water for 3-5 hours, then rinsing them with clean water, and then soaking them in a circulating water bath at a constant temperature of 37°C for 3-5 days, the resulting The water bath is provided with an ozone generator, and when the glume of the seeds is whitish, it is pulled out, then put into 10% trisodium phosphate solution and soaked for 20 minutes, and then germinated after being washed with clear water; (b) soaking the seeds The seeds are placed in an environment of 25-28°C, and the air humidity is maintained at 75%; every 2-4h is ventilated for 7-10min; ozone is treated for 8-10min; after 10 hours, the ambient temperature is gradually reduced to 10°C. The invention adopts a unique fermentation process to prepare wheat base fertilizer. In the base fertilizer, inorganic selenium and organic selenium in biological straw are combined to keep selenium at low concentration and release slowly, which can promote long-lasting and effective absorption of selenium by plants.
Owner:徐旭东

Passivating agent and repairing method for in situ repairing of heavy metal cadmium in soil

The invention discloses a passivating agent and a repairing method for in situ repairing of heavy metal cadmium in soil. The raw materials of the passivating agent comprise biochar, treated bacterium residues and modified sepiolite. The raw materials of the passivating agent have sufficient sources, and the process flow meets production requirements of enterprises, so preparation of a large amount of the passivating agent can be ensured. The passivating agent can significantly inhibit the activity of heavy metal cadmium in farmland soil and reduce the content of heavy metal cadmium in the edible parts of agricultural products, can be applied to the in situ passivation repairing of medium-light cadmium polluted farmlands at a large scale, and has a broad application prospect in the field of improvement of the safety productivity of medium-light cadmium polluted farmlands s.
Owner:SICHUAN AGRI UNIV +1

Plant antidote containing diethyl aminoethyl hexanoate and vitamin C

The invention discloses a plant antidote. Diethyl aminoethyl hexanoate, vitamin C and various trace elements are taken as main ingredients and are prepared into the plant antidote. The plant antidote has the advantages that the phytotoxicity to crops generated by various pesticides is prevented, the immunological competence of the crops is increased, the vivotoxin of the crops is efficiently eliminated, the growth of the crops is quickly recovered, the development of a root system is boosted, the tillers and branches are increased, the maturing rate of fruit is increased and the yield and quality are increased.
Owner:ZHENGZHOU NONGDA BIOCHEM PROD

Residual ammonia water degreasing method

The invention provides a residual ammonia water degreasing method belongs to the field of machinery. The invention aims to solve the problems of the existing process for treating residual ammonia water that the tar treatment effect is bad, only a residual ammonia water tank is used for treating all the residual ammonia water, the effective volume is small and the treatment efficiency is reduced; and the branched pipes of a tar-removing device are always blocked, a turning plate rotation shaft in a tar precipitator moves sluggishly and the tar content of the treated water is high. The method comprises the following steps: 1) pumping the residual ammonia water to the tar-removing device by the circulating ammonia water tank; 2) discharging the water treated by the tar-removing device into the residual ammonia water tank or a residual ammonia water intermediate tank, pumping the residual ammonia water which is higher than a pipeline 2 in the tank into an ammonia distillation tower, and standing the residual ammonia water which is lower than the pipeline 2 to precipitate; 3) precipitating the residual ammonia water for 20-30 hours and then pumping into the ammonia distillation tower; and 4) discharging the wastewater treated by the ammonia distillation tower into a dephenolization station, and delivering the wastewater to the coking operation area for quenching and the coal yard for dust removal respectively by virtue of the dephenolization station.
Owner:HEILONGJIANG JIANLONG IRON & STEEL

Paddy field irrigation method for reducing lead content of paddy

ActiveCN102860240AReduce Pb concentrationPb content decreasedRice cultivationSoil scienceJaponica rice
The invention relates to a paddy field irrigation method for reducing the lead content of paddy, and belongs to the technical field of prevention and control of agricultural product heavy metal pollution. In a water control period, a living tree is transplanted to a tillering stage to control water after a paddy seedling is transplanted for 7 to 40 days, and is subjected to submerged irrigation in other stages to maintain the water layer to be between 5 and 10cm; the degree of water control is mild water control; in the view of soil appearance, the surface oil turns hard, but not turns to white, and is subjected to fine cracking; if the water content of soil is detected, the water content of soil is kept to be maximum water-holding capacity of about 80 percent (+ / -5 percent); and the selection of paddy variety is as follows: the variety of japonica rice with weak capacity of absorbing Pb in soil is suited for selecting, while the variety of nonglutinous rice or hybrid rice with strong capacity of absorbing Pb in soil is unsuited for selecting. Compared with common whole growth period submerged irrigation in paddy practical production, the method has the advantage that the Pb content of paddy is reduced by 28.4 to 43.8 percent; and compared with the common method of controlling water 10 to 15 days before mature in the paddy practical production, the method has the advantage that the Pb content of the paddy is reduced by 57.6 to 69.1 percent.
Owner:溧阳常大技术转移中心有限公司

Reusable load type platinum complex oxidizing agents, and preparation method and application thereof

The invention discloses reusable load type platinum complex oxidizing agents. The reusable load type platinum complex oxidizing agents are silicon dioxide pellets of load platonic complex, and have a structure shown in a formula (I). In the structure shown in the formula (I), n=3, M is Pt4+, Y is -1 valence halide ions, and grain sizes of the silicon dioxide pellets are 100nanometers to 2,000 nanometers. The invention also provides a preparation method of the oxidizing agents. The preparation method comprises the following steps of (a) using toluene as a solvent and heating the silicon dioxide pellets and a siloxane reagent to perform reflex reaction so as to obtain white solid; (b) performing stirring reaction on the obtained white solid and platinous complex to obtain offwhite solid; and (c) fully reacting the offwhite solid, H2O2 / hydrochloric acid, chlorine or liquid bromine to obtain the load type platinum complex oxidizing agents. The load type platinum complex oxidizing agents are easy to prepare and can be reused after being subjected to regeneration treatment, the yield of synthesized oxidation type polypeptide is not affected by reusing frequency of the oxidizing agents, and the oxidizing agents are recycled and subjected to regeneration treatment simply.
Owner:HEBEI UNIVERSITY

Continuous preparation process of phosphate flame retardant based on micro-channel reactor

The invention relates to a continuous preparation process of a phosphate flame retardant based on a micro-channel reactor, and belongs to the technical field of phosphorus-based flame retardant preparation. The process comprises the steps of mixing a catalyst and phosphorus oxychloride to obtain a mixed raw material, and respectively pumping the mixed raw material and an epoxy compound into the micro-channel reactor to perform continuous reaction, thereby obtaining the phosphorus-based flame retardant. According to the method, the mixed raw materials are directly introduced into the micro-channel reactor for reaction, the equipment is simple, the operation is convenient, continuous production can be achieved, the quality is stable, the yield is high, energy consumption is low, and safety is good.
Owner:扬州晨化新材料股份有限公司 +1

Rice cropping method under condition of wheat straw returning to field

The invention discloses a rice cropping method under a condition of wheat straw returning to the field. The method comprises the following steps that S1, wheat straws return to the field; S2, a base fertilizer is evenly broadcasted on the surfaces of the wheat straws, rotary tillage is carried out instantly, the tilling depth is 18-22 centimeters; S3, water feeding is carried out to soak the field, after the soil absorbs enough water, a water rake is used for harrowing for 1-2 times; rice planting is carried out after slurry subsides completely, irrigation is carried out after rice planting until the water depth is 3-5 centimeters, 2-3 days after the rice planting, nitrogen topdressing is carried out timely and separately; after the water in the field is naturally consumed completely, airdrying is carried out on the field for 1-2 days, then the rice is irrigated by adopting a rice wet irrigation method; S4, nitrogen topdressing is carried out in the later stage. Compared with the prior art, the rice cropping method under the condition of wheat straw returning to the field has the advantages that the rice cropping method solves the problems that the decomposition of the wheat straws in the early stage inhibits the growth of the rice, and poison gas generated during wheat straw decomposition damages the roots; the yield and quality of the rice are improved, and the cost and useamount of the fertilizer are reduced.
Owner:SUQIAN CHOOSAN SEED IND

Rice gene OsNF-YC4 and applications thereof

The invention discloses a rice gene OsNF-YC4 and applications of the rice gene OsNF-YC4. The DNA sequence of an open reading frame of the rice gene OsNF-YC4 is shown as SEQ ID NO:1, and the amino acid sequence of protein encoded by the rice gene OsNF-YC4 is shown as SEQ ID NO:2. According to the invention, for the first time, the rice OsNF-YC4 gene is obtained from a rice genome through cloning, the functions of the rice OsNF-YC4 gene are verified, and meanwhile, a plant transgenic vector is utilized for realizing the overexpression of the rice gene OsNF-YC4 in strains OsNF-YC4-OE-8 and OsNF-YC4-OE-17 and the wild type (ZH11). The result shows that the strains with overexpression of the rice gene OsNF-YC4 provided by the invention become high, the grain width and the thousand seed weight are obviously increased, the stress resistance is obviously enhanced, and therefore, the rice gene OsNF-YC4 plays an important role in plant growth and regulation on the stress resistance, plays an important role in researching rice growth and stress resistance mechanism, and has the wide application prospect in crop breeding.
Owner:SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI

Special selenium-rich fertilizer for jackfruit

The invention discloses special selenium-rich fertilizer for jackfruit. The special selenium-rich fertilizer for the jackfruit is prepared from the following raw materials in parts by weight: 3 parts to 9 parts of urea humate, 3 parts to 9 parts of excrement and urea of livestock, 0.5 part to 1.5 parts of sodium perborate, 0.5 part to 1.5 parts of strain packets, 0.5 part to 1.5 parts of bio-enzyme, 4 parts to 12 parts of plant ash, 2 parts to 6 parts of agricultural rare earth, 2 parts to 4 parts of bentonite, 0.5 part to 1.5 parts of chitin, 1 part to 3 parts of calcium superphosphate, 1 part to 3 parts of ferrous sulfate, 1 part to 3 parts of potassium sulfate, 0.5 part to 1.5 parts of trace elements, 0.5 part to 1.5 parts of bacterial powder of photosynthetic bacteria, 1 part to 3 parts of sodium selenite, and 1 part to 3 parts of selenium yeast. According to the special selenium-rich fertilizer for the jackfruit disclosed by the invention, the yield of the jackfruit can be increased; the yield of the jackfruit cannot be affected too much even if the weather is bad; in addition, selenium elements are rich in the chemical fertilizer disclosed by the invention, the planted jackfruit is rich in nutrition, and meets the demand of people on nutrition, and therefore, the jackfruit is more preferred by people of all ages.
Owner:韦卓熙

Method for extracting active collagen peptide with low molecular weight from chicken skin

The invention discloses a method for extracting an active collagen peptide with low molecular weight from chicken skin. The method comprises the following steps: (1) degreasing: with fresh chicken skin as a raw material, shearing, cleaning, adding an NaOH solution of H2O2 of which the mass concentration is 0.8-1.2%, soaking, washing with clear water till being neutral, and draining off to obtain degreased chicken skin; (2) preparation of collagen: adding deionized water to the degreased chicken skin, heating and adding compound protease I for enzymolysis so that the chicken skin is disintegrated into scattered collagen; (3) preparation of the active collagen peptide with low molecular weight: adding compound protease II to the scattered collagen, carrying out further enzymolysis, heating after complete enzymolysis, inactivating the enzyme, standing, separating out clear liquid, adding activated carbon, filtering after destaining, filtering and concentrating by using an ultra-filtration device, and drying concentrated liquid to obtain the active collagen peptide with low molecular weight. The processing steps are optimized, the productivity is improved, the yield of collagen peptide is improved, and the activity of the collagen peptide is improved.
Owner:GUILIN JUNGONG BIOCHEM TECH DEVCO

Ratoon rice directly-seeding cultivation method

The invention discloses a ratoon rice directly-seeding cultivation method. The method comprises the following steps: (1) selecting a medium and early-maturing fine variety; (2) finely preparing the soil; (3) directly seeding main rice crop by a precision machine at the appropriate period of the main rice crop from the last ten-day period of March to the first ten-day period of April, and arrangingthe heading and flowering phase of the ratoon rice ratooning season at the latest in the middle of September; (4) carrying out intermittent irrigation; (5) carrying out fertilization in the main cropping season; (6) applying a seedling fertilizer to the ratooning season; (7) harvesting the main rice crop by machine, wherein a low-pile machine harvesting mode is adopted for the main rice crop of ashort growth period variety and a high-pile machine harvesting mode is adopted for the main rice crop of a long growth period variety; (8) treating diseases and pests; and (9) removing weeds. According to the method, the agricultural production labor intensity is greatly reduced, the problems that the labor intensity for rice production is high and the benefit is low are solved. According to themethod, the rice production cost is reduced by 400 yuan per mu, and the labor for rice production is reduced by 70%, so that the production profits of the rice can be more than 500 yuan per mu, and the rapid improvement of the production mechanical level of the regenerated rice is realized.
Owner:福建省农业科学院水稻研究所

Method for increasing gleditsia-sinensis grafting survival rate

The invention aims at providing a method for increasing the gleditsia-sinensis grafting survival rate. The method includes the steps of scion collecting and preparing, scion disinfecting, scion wax sealing and conserving, grafting period selecting, stock managing and protecting, grafting method applying, grafting post-managing and the like. According to the method, scions and gleditsia-sinensis thorn mining are combined, and resources are fully used; according to the key technology for increasing the gleditsia-sinensis grafting survival rate, a period is well distinguished, the method is easyto operate, management and protection are easy, the gleditsia-sinensis grafting survival rate can be 97% or above, and industrialization of the gleditsia-sinensis grafting technology can be fully achieved.
Owner:河南省林业科学研究院

Preparation method of 2,3,4-trisubstituted quinoline-N-oxide compound

The invention discloses a preparation method of a 2,3,4-trisubstituted quinoline-N-oxide compound. The method comprises the following steps that under the effect of a cobalt catalyst, an additive and an oxidizing agent, a nitrone compound and an alkyne compound produce ring reaction in an organic solvent; after the reaction is completed, post treatment is performed to obtain the quinoline-N-oxide compound. The preparation method has the advantages that the use raw materials have wide resources; the method can be used for synthesizing the quinoline-N-oxide compound with various substitutional groups; important application values are realized.
Owner:ZHEJIANG UNIV

Method for combining hybrid bibasic seed with cytoplasmic male sterility system

InactiveCN101401541BYield is not adversely affectedYield impactPlant genotype modificationHybrid seedPollination
The invention relates to a method for combining the first generation of hybrid seeds by kenaf cytoplasmic male sterile line, and belongs to the technical field of combination of crop hybrid seeds. The method is characterized in that the cytoplasmic male sterile line (also called cytoplasmic-nuclear male sterile line) taken as female parent and restoring line taken as male parent are combined intothe first generation of the hybrid seeds which breed the second generation of the hybrid seeds through inbred breeding. The method is novel due to that the separation of male sterile plants and fertile plants exists in the second generation of the hybrid seeds, but kenaf takes the harvest of stalks or bast fibre as breeding aim and does not need seeds, so the male sterile plants have no adverse affection to the yield of the bast fibre. The method saves the labor input of kenaf chemical hybridizing and artificial pollination, and can guarantee the purity of the hybrid seeds because of stable fertility of the kenaf cytoplasmic male sterile line.
Owner:GUANGXI UNIV

Extraction and preparation methods of swim bladder collagen oligopeptide

The invention discloses extraction and preparation methods of a swim bladder collagen oligopeptide. The preparation method comprises the following specific steps: cleaning is conducted, specifically,a swim bladder is selected, cleaned, and crushed into small blocks, then a sodium hydroxide solution is added for soaking, washing is conducted with water till neutrality is achieved, then soaking isconducted through 5-10% of a n-butyl alcohol or isopropanol solution, washing is conducted with water till neutrality is achieved, and then slurry uniformizing is conducted for standby application; pretreatment is conducted, specifically, tannic acid is added into uniformized slurry, filtering is conducted, proteases are added under an alkaline environment for enzymolysis, and a mixture passes through a resin column; enzymolysis is conducted, specifically, the pH is adjusted, and 0.1-1.0% of compound proteases are added for enzymolysis; and purification is conducted, specifically, purificationcomprises membrane filtration, nanofiltration, concentration, sterilization and spray drying. According to the extraction and preparation methods, an extraction process is simple while the fishlike smell is effectively removed, and the swim bladder collagen oligopeptide is high in yield and good in quality.
Owner:福州海锐黎思生物科技有限责任公司

Aluminum alloy hub heat treatment device capable of effectively improving yield of hubs

The invention relates to the technical field of wheel hub processing, and discloses an aluminum alloy wheel hub heat treatment device that can effectively improve the yield, including a heat treatment furnace body, and two mounting blocks are fixedly installed on the top of the heat treatment furnace body. The blocks are fixedly equipped with pulleys, and the opposite side of the pulleys is fixedly installed with a fixed cross bar above the heat treatment furnace body. The bottom of the hanging block is fixedly installed with an installation frame, the inner cavity of the installation frame is fixedly installed with a hanging rod, and the front surface of the hanging rod is fixedly installed with a wheel hub ring located in the inner cavity of the heat treatment furnace. The heat treatment device for aluminum alloy wheels that can effectively improve the yield can effectively ensure that the overall installation frame is more stable when sliding on the slider, and will not derail and other situations, causing the wheels to fall off and fall, affecting the overall yield of the aluminum alloy wheels. question.
Owner:何琼

Irrigation method for reducing arsenic concentration of rice in fields with severe arsenic pollution

InactiveCN104255392AReduce the concentration of arsenicYield impactWatering devicesCultivating equipmentsArsenic pollutionPaddy field
The invention discloses an irrigation method for reducing the arsenic concentration of rice in fields with severe arsenic pollution and belongs to the technical field of agricultural product heavy metal pollution prevention. According to the irrigation method for reducing the arsenic concentration of the rice in the fields with severe arsenic pollution, in the rice fields with severe arsenic pollution at a soil arsenic concentration o 100 mg / kg, a water controlling period covers the rice tillering period to the heading period of rice and 21 days after the heading period to the mature period, and in the others periods, submerging irrigation is performed, and the water layer is maintained to be 3-5 cm; the control level during the water controlling period is low; viewed from the outside, surface soil hardens and generates tiny cracks but not whitens; the soil water content is measured to be 75%-85% of the maximum water holding capacity. Compared with full-period submerging irrigation methods generally used during actual rice production, the irrigation method for reducing the arsenic concentration of the rice in the fields with the severe arsenic pollution can reduce the arsenic concentration by 58%-69%.
Owner:CHANGZHOU UNIV

Method for combining hybrid bibasic seed with cytoplasmic male sterility system

InactiveCN101401541AYield is not adversely affectedYield impactPlant genotype modificationHybrid seedPollination
The invention relates to a method for combining the first generation of hybrid seeds by kenaf cytoplasmic male sterile line, and belongs to the technical field of combination of crop hybrid seeds. The method is characterized in that the cytoplasmic male sterile line (also called cytoplasmic-nuclear male sterile line) taken as female parent and restoring line taken as male parent are combined into the first generation of the hybrid seeds which breed the second generation of the hybrid seeds through inbred breeding. The method is novel due to that the separation of male sterile plants and fertile plants exists in the second generation of the hybrid seeds, but kenaf takes the harvest of stalks or bast fibre as breeding aim and does not need seeds, so the male sterile plants have no adverse affection to the yield of the bast fibre. The method saves the labor input of kenaf chemical hybridizing and artificial pollination, and can guarantee the purity of the hybrid seeds because of stable fertility of the kenaf cytoplasmic male sterile line.
Owner:GUANGXI UNIV

Multi-color-temperature COB (chip on board) light source and encapsulating method thereof

The invention discloses an encapsulating method of a multi-color-temperature COB (chip on board) light source. The method includes: welding inverted LED chips on default welding spots of a circuit board, and printing conductive silver slurry between jumper points of the circuit board to form a conductive silver slurry layer to form a complete conductive circuit. The printed conductive silver slurry can form the conductive silver slurry layer attached to the surface of the circuit board between the jumper points of the circuit board. Compared with a traditional suspending jumper structure, thestructure adopted in the method has the advantages that the conductive silver slurry layer is attached to the surface of the circuit board and has certain width, and the conductive silver slurry layeris more difficult to break than jumpers; the surface of the circuit board is free of structures of the jumpers, connecting lines and the like by the arrangement of the inverted LED chips, and influence of the jumper on the yield of the COB light source is completely avoided. The invention further provides the multi-color-temperature COB light source and has the same advantages as above mentioned.
Owner:NINGBO SUNPU OPTO SEMICON

Planting method for rotation planting and interplanting of Pennisetum sinese and ryegrass

The invention discloses a planting method for rotation planting and interplanting of Pennisetum sinese and ryegrass. The planting method comprises the following steps: soil preparation, base fertilizer application, planting, management, harvesting and overwintering for the Pennisetum sinese, interplanting and rotation planting for the ryegrass, management and harvesting for the ryegrass, etc.; thus, interplanting and rotation planting of the Pennisetum sinese and the ryegrass are realized. According to the invention, by adoption of manners of rotation planting and interplanting, annual ryegrass is used as supplementary forage for the gap periods after the last harvesting of the Pennisetum sinese and before the first reaping after germination of the Pennisetum sinese in the next year, and the annual ryegrass is planted in vacant lands among ridges after harvesting of the Pennisetum sinese, so the utilization efficiency of the lands is improved, and the supply of feed and forage for cattle and sheep in the gap periods of the Pennisetum sinese is supplemented. After harvesting of the Pennisetum sinese, 0.8 kg / mu of the annual ryegrass is sowed, and the predicted yield of the ryegrasscan reach 5000 kg / mu, so the shortage of the Pennisetum sinese can be well supplemented.
Owner:TONGREN UNIV

A yield estimating method for a continuously produced coiled material

A yield estimating method for a continuously produced coiled material is provided. The method includes 1) a step of AOI detection, namely a step of performing non-contact real-time detection on each coil of the film material with an AOI device; 2) a step of AOI detection data extraction; 3) a step of data pretreatment, namely a step of unpacking the AOI detection data, and extracting data list heads to obtain needed defect information; 4) a step of data filtering; 5) a step of data section splitting, namely a step of, through a program, subjecting the coiled material to section splitting according to a section dimension and direction of an actual sheet-shaped finished product, and making a split diagram in one-to-one correspondence with an actual situation; and 6) a step of calculating thesplit diagram obtained in the step 5) to obtain an estimated yield high in accuracy. The estimated yield is high in accuracy and high in reliability, and is adopted as feedback data to improve the production quality and increase the product yield. The method has no influence on the yield of the coiled material through the non-contact detection, and sampling is not needed so that consumption is avoided.
Owner:SHENZHEN SAPO PHOTOELECTRIC

Planting method for jasmine flowers

The invention relates to the technical field of plant cultivation, in particular to a planting method for jasmine flowers. The planting method comprises the steps of selection of acid and fertile sandy loam soil, soil preparation, seedling raising, transplantation and planting into a greenhouse, field management suitable for growth of the jasmine flowers and prevention and control of pests and diseases. According to the planting method for the jasmine flowers, the blooming period of the jasmine flowers can be effectively prolonged, and the aims of supplying the jasmine flowers all year round and increasing the economic benefit of planting the jasmine flowers are achieved.
Owner:柳州市天立农林科技有限公司

Injection molding method for polymer rubber plate

The invention relates to an injection molding method for a polymer rubber plate. A polymer rubber plate injection molding device is adopted, and comprises a bottom rack, a molding plate, a molding workbench, a vibrating mechanism, an adjusting mechanism and a feeding mechanism. According to the injection molding method, the problems existing in the injection molding process of the polymer rubber plate can be solved: a, in the traditional injection molding process of the polymer rubber plate, the size of a mold is fixed; if the specifications of the polymer rubber plates required for production are different, molds with different specifications are needed, and the molds need to be frequently replaced in the traditional injection molding process; the production cost is high, and the process is complex; b, in the traditional injection molding process of a molecular rubber plate, only a single polymer rubber plate can be subjected to injection molding, the yield is low; in the traditional injection molding process of the molecular rubber plate, the demolding efficiency is low, and the injection molding efficiency is low; and the yield of the polymer rubber plate is influenced.
Owner:广东省恩齐尼迩特种塑料股份有限公司
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