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32results about How to "Promote sustainable production" patented technology

Anti-bacterial peptide hydrolysate of earthworm and feed comprising the same

The invention provides an anti-bacterial peptide hydrolysate of earthworm. The method for preparing the anti-bacterial peptide hydrolysate comprises the following steps: 1) collecting fresh earthworm, cleaning and drying; 2) hydrolyzing the earthworm after being processed in the step 1), brown sugar, water and preservative through water bath at constant temperature of 40-60 degrees centigrade for16-20 hours according to weight rate of 1: 0.2-1.1: 1-10:0.007-0.003; 3) filtering the impurities to obtain the anti-bacterial peptide hydrolysate of the earthworm. The anti-bacterial peptide hydrolysate of the earthworm provided by the invention comprises more than ten amino acids, digestive enzymes and small peptides which are suitable for aquatic animals. The anti-bacterial peptide hydrolysateof the earthworm is the mixture of multiple anti-bacterial peptides of the earthworm, multiple digestive enzymes and amino acids thereof, cooperates the pathogenic bacteria, has broad-spectrum antibacterial property, improves the feed utilization rate, reduces the feed / meat ratio, improves the immunity of the organism of the aquatic animals, promotes the growth of the aquatic animals, improves the quality of the aquatic animals, has simple production technology, and reduces the production cost.
Owner:JIANGMEN HAOLUN ECOLOGICAL AGRI CO LTD

CGDD (Cumulative Growing Degree-Days) based method for improving longan florescence rate and fruit quality through flower forcing

ActiveCN104255357AAchieve early maturity and listingEfficiencyCultivating equipmentsHorticulture methodsSustainable productionClimatic warming
The invention discloses a CGDD (Cumulative Growing Degree-Days) based method for improving the longan florescence rate and the fruit quality through flower forcing. The CGDD based method is established on the basis of the years of practical experience, a growing period and GDD (Growing Degree-Days) based innovative flower forcing technology is innovatively and systematically utilized, and the reasonable timing young sprout forcing, flower forcing and fruit setting is guided. The GDD are used for reflecting the accumulated heat of every growing period of longan trees under the actual environmental conditions and accordingly the flower forcing benefit of the GDD is remarkable and the accuracy is high. The expected accuracy of the expected effect of every growing period, namely the young sprout forcing period, the flower forcing period, the fruit setting period and fruit growing period, is within the range of plus or minus 5% through the CGDD. According to the CGDD based longan chemical flower forcing method, flower buds can be effectively induced, the physiological photosynthetic effect can be enhanced, the flowering and fruit setting of the longan trees can be promoted in a warm climate, the market sales production of logan fresh fruits is significantly improved, the fruiting can be achieved ahead of time, and high production economic returns can be obtained. According to the CGDD based longan flower forcing and management matching technology, the sustainable production of longan under the climate warming environmental conditions can be promoted.
Owner:ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI

Domesticating cultivation medium for increasing survival rate of pinellia tissue culture seedlings and preparation method of domesticating cultivation medium

The invention relates to the technical field of agricultural cultivation medium production, in particular to a domesticating cultivation medium for increasing the survival rate of pinellia tissue culture seedlings and a preparation method of the domesticating cultivation medium. The medium is prepared from, by mass, 80-90 parts of straw compost, 5-18 parts of an inorganic mineral material and 1-5parts of a compound conditioner. The medium is easy in formula material selection, simple in production process, reasonable in ratio, convenient and efficient in use, capable of giving full play to water retention, ventilation, rooting, disease resistance and nutrition effects required by domesticating cultivation of the pinellia tissue culture seedlings, extensive in material source, low in costand high in popularization value. The pinellia tissue culture seedlings cultivated with the domesticating cultivation medium are great in growth condition, robust and uniform, and developed roots androbust plants are realized. By adoption of the domesticating cultivation medium for pinellia domesticating cultivation, required seedling hardening time is short, the seedlings can be transplanted infields only after 1-2 months, the survival rate reaches 95% or above, low use cost is realized, and production benefits are greatly increased.
Owner:李金文

Modified macroporous polyvinyl alcohol resin and method for separating and purifying Chinese medicinal herb polysaccharide

The invention relates to a modified macroporous polyvinyl alcohol separation resin and a method for separating and purifying Chinese herbal medicine polysaccharides. The polyvinyl alcohol resin microsphere reacts with epichlorohydrin under alkaline condition, then reacts with trimethylamine, triethylamine or diethylenetriamine under alkaline condition, is washed with water and dried. The crude polysaccharide (licorice polysaccharide, astragalus polysaccharide, ganoderma polysaccharide, lentinan and ginseng polysaccharide, etc.) aqueous solution is directly separated and purified through the separation column of modified macroporous polyvinyl alcohol separation resin, and the main impurity - protein can be removed in only one step. and the pigment is more than 85%, and the separated liquid can be dried to obtain a polysaccharide product with a purity greater than 80%.
Owner:TIANJIN DEOUTE BIOLOGY MEDICINE SICENCE & TECH

Method for preparing isoborneol through continuous saponification of isobornyl acetate

The invention discloses a method for preparing isoborneol through continuous saponification of isobornyl acetate. Sodiumhydroxide and the isobornyl acetate are used as raw materials, and white isoborneol crystals are prepared through steps of saponification, rectification, layering, water washing, crystallization and the like. Continuous operation of a saponification reaction can be realized in an oscillatory flow reactor, a static mixer or an ultrasonic mixer; a polar solvent is added during reaction, so that the saponification reaction is conducted at a homogeneous phase, the reaction time can be shortened, the reaction temperature can be reduced, the conversion rate of the isobornyl acetate exceeds 99%, and the product yield exceeds 95%; the method is low in energy consumption for production and high in product yield.
Owner:FUZHOU UNIV

Salt-alkali resistant, anti-continuous cropping and disease resistant macroelement water-soluble fertilizer (medium element type) and preparation method

Belonging to the technical field of fertilizers, the invention relates to a salt-alkali resistant, anti-continuous cropping and disease resistant macroelement water-soluble fertilizer (medium elementtype) and a preparation method. The water-soluble fertilizer is prepared from the following raw materials and formula: 10-20% of urea, 5-10% of crystal monoammonium phosphate, 20-30% of potassium dihydrogen phosphate, 30-40% of potassium sulfate, 5-10% of potassium fulvate, 5-10% of sodium humate, 2-5% of calcium ammonium nitrate, 2-5% of magnesium sulfate, 2-3% of amino acid powder, 1-1.5% of chitin, 0.3%-0.5% of compound sodium nitrophenolate, 0.2-0.3% of diethyl aminoethyl hexanoate, 0.2-0.3% of agricultural streptomycin, and 0.1-0.2% of bacillus subtilis. The water-soluble fertilizer provided by the invention is a good innovation, realizes the new breakthrough of combination of nourishing, disease resistant and yield increasing pesticides and fertilizers, and is incomparable by other water-soluble fertilizer patents. The macroelement water-soluble fertilizer especially has unique effects in salt and alkali resistance, continuous cropping resistance and disease resistance, completely solves the nutrient deficiency symptom and physiological diseases of crops, increases yield, improves quality, is green and environment-friendly, and is conducive to the development of ecological agriculture. The macroelement water-soluble fertilizer provided by the invention fills the domestic blank, and the technology takes the leading position at home and abroad.
Owner:SHANDONG JINGJIU FERTILIZER CHEM

Method for separating polymyxin E fermentation liquid by multistage ceramic membrane microfiltration

The invention discloses a method for separating a polymyxin E fermentation liquid by multistage ceramic membrane microfiltration. The method comprises the following steps: 1) acidizing the polymyxin E fermentation liquid; and 2) sequentially passing the acidized polymyxin E fermentation liquid through the multistage ceramic membrane microfiltration system to perform microfiltration separation, wherein the pore sizes of the ceramic membranes in the ceramic membrane microfiltration system gradually decrease along the polymyxin E fermentation liquid microfiltration separation direction. The method has the advantages of mild conditions and low worker labor intensity, reduces the separation process steps and enhances the separation recovery yield.
Owner:ANHUI NORMAL UNIV +1

Vanadium dioxide nano carbon fiber composite material, preparation method and application thereof

The invention relates to a vanadium dioxide nano carbon fiber composite material, a preparation method and an application thereof, and belongs to the technical field of electrode materials. The invention provides the preparation method of the vanadium dioxide nano carbon fiber composite material. The method comprises the following steps: a. preparing an ethylene glycol vanadyl solution: mixing ammonium metavanadate and ethylene glycol according to a mass ratio of 1: (5-10), and reacting to generate ethylene glycol vanadyl for later use; b, preparing a spinning solution: uniformly mixing a polyacrylonitrile solution with the ethylene glycol vanadyl solution obtained in the step a according to a volume ratio of the polyacrylonitrile solution to the ethylene glycol vanadyl solution of (5:5)-(9:1) in terms of 90% w / w of the content of the polyacrylonitrile solution, and then diluting the mixed solution till that the total content of polyacrylonitrile and ethylene glycol vanadyl is 5-20% v / v; c, carrying out electrostatic spinning by using the spinning solution obtained in the step a; and d, preparing a composite material. The preparation method disclosed by the invention has good popularization and application prospects.
Owner:CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD

Camellia oil hydraulic squeezing method based on a response surface method and a multi-target genetic algorithm

The invention belongs to the technical field of vegetable oil extraction, and discloses a camellia oil hydraulic squeezing method based on a response surface method and a multi-objective genetic algorithm, which comprises the following steps: (1) sequentially changing the squeezing temperature, the squeezing time, the squeezing pressure and the water content of camellia seeds to carry out a singlefactor test on a camellia seed sample; (2) respectively establishing multivariate quadratic regression equations by taking the squeezing temperature, the squeezing pressure, the squeezing time and the water content of the camellia seeds as independent variables and taking the oil yield and the energy consumption as response values; analyzing according to the established multivariate quadratic regression equation to obtain a response surface map, and then confirming the optimal pressing temperature, the optimal pressing time, the optimal pressing pressure and the optimal camellia seed water content; and (3) carrying out hydraulic squeezing on the camellia seeds with the water content of the optimal camellia seeds at the optimal temperature and pressure, wherein the squeezing time is the optimal squeezing time. According to the method, the cost is reduced, the oil yield is increased, the flexibility is good, and the applicability is high.
Owner:HUAZHONG UNIV OF SCI & TECH

Komatsuna- cultivation method

The invention relates to a komatsuna- cultivation method, which belongs to the technical field of agriculture, in particular to a komatsuna- cultivation technique which can decrease the browning rate of a quick-frozen product. The pH value of the soil of a growing plot is controlled to be more than 8.0; 'Paradise' komatsuna stock seeds are chosen as seeds for production and overwintering cultivation, base fertilizer is applied in the process of soil plowing 10 to 15 days before seeding, foliar fertilizer is applied just one time respectively when the plant height of komatsuna is 25cm and 30cm, and plants with intact leaves and without disease and insect spots are harvested when the plant height reaches about 35cm. When the method is adopted, the prevention of the browning of quick-frozen komatsuna is started in the growing technology, the produced high-quality material can decrease the browning rate of the quick-frozen product by 5.2 to 8.4 percent, consequently, the market competitiveness of the product is enhanced, the demand of the export market is satisfied, and the economic benefit of enterprises is increased. The usage of fertilizer is controlled, blind fertilization is prevented, non-point source pollution is reduced, and the agroecological environment can be improved.
Owner:慈溪市农业技术推广中心

Pennisetum sinese planting device and method

The invention discloses a pennisetum sinese planting device and method, and belongs to the technical field of pennisetum sinese planting. The pennisetum sinese planting device structurally comprises an upper box body fixedly arranged through a support, a lower box body matched with the upper box body is arranged below the upper box body, a cutting blade is arranged at the upper end of the lower box body, and the lower end of the lower box body is fixedly arranged on a conveying mechanism. Through matching of the upper box body and the lower box body,pennisetum sinese planting gets rid of dependence on land, and meanwhile, stems, leaves and root hairs can be quickly separated, so that the stems, the leaves and the root hairs can be fully utilized, large-scale mechanical planting is conveniently realized and the planting efficiency is improved by matching with a conveying structure, organic solid wastes can be added into the box body after being treated, nutrients are provided for growth of pennisetum sinese, and humus resources are produced; and the pennisetum sinese planting device and method can be popularized and applied to the field of planting of root block type Chinese herbal medicines for many years, the problem that plants excessively depend on the land during planting is effectively solved, and meanwhile sustainable production and repeated utilization of resources are facilitated.
Owner:齐庆俊

Method for increasing content of vitamins of rice grains

The invention discloses a method for increasing the content of vitamins of rice grains. The method comprises the following steps: A, constructing a recombinant vector; B, obtaining a transgenic plant;C, harvesting selfed seeds of single plant; D, selfing and seeding for the T1 generation; E, selfing and seeding for the T2 generation; F, selecting phenotype; and further comprises the steps of constructing the recombinant vector, namely separating the cDNA fragment of a gamma-tocopherol transmethylase gene from arabidopsis thaliana, and digesting and linking the cDNA fragment and specific gluten GluB-1 promoter of rice grains onto the expression vector pCAMBIA1300 to form the recombinant vector. According to the method, the content of vitamin E of rice grains is improved, the rice grain quality is improved, and a novel rice material with improved quality can be created.
Owner:袁米农业科技有限公司

Picking method for fresh tea leaves

The invention provides a picking method for fresh tea leaves. The picking method comprises the step that when standard bud leaves reach 60-100 per square foot and account for 50-90% of all the fresh tea leaves, mechanical picking is conducted on tea trees, wherein a tea picker with a mature leaf filtering device is preferably adopted for mechanical picking. By means of the picking method for the fresh tea leaves, mechanical picking is conducted within a specific time, the tea picker for mechanical collection is improved at the same time, the ratio of standard new shoots of mechanically-pickedtea leaves is increased, the miss picking rate is reduced, and processing and production of high-quality tea are facilitated; meanwhile, the labor intensity of tea leaf picking is also reduced, the production cost is reduced, and the sustainable development of tea production is improved.
Owner:湖南省茶叶研究所

Method for synthesis of active printing dye from T acid mother liquor wastewater

The invention relates to a method for synthesis of an active printing dye from T acid mother liquor wastewater and belongs to the technical field of chemical engineering. The method realizes synthesis of the active printing dye by condensation, diazotization and coupling elementary reactions. The active printing dye obtained by the method has high dissolvability, low substantivity, strong liftingpower, high quality and a low production cost, can completely satisfy quality and cost requirements from printing and dyeing customers, has a high market promotion value, and further promotes sustainable production of an H acid. The method effectively reduces organic components of T acid mother liquor wastewater and is convenient for standardized discharge of T acid mother liquor wastewater.
Owner:CHUYUAN HIGH NEW TECH GRP

A kind of treatment method of p-beta hydroxyethyl sulfone acetanilide mother liquor wastewater

The invention discloses a treatment method for p-beta hydroxyethyl sulfone acetanilide mother liquor waste water. The treatment method comprises the following steps of performing pretreatment on p-beta hydroxyethyl sulfone acetanilide mother liquor water to recover p-beta hydroxyethyl sulfone acetanilide in mother liquor waste water, and then sequentially performing diazo reaction, coupling, primary condensation and secondary condensation to prepare a yellow reactive dye. According to the treatment method disclosed by the invention, p-beta hydroxyethyl sulfone acetanilide in the p-beta hydroxyethyl sulfone acetanilide mother liquor waste water produced in the production process of para-ester is reasonably utilized, and p-beta hydroxyethyl sulfone acetanilide in the waste water is used for synthesizing an intermediate of the reactive dye after hydrolysis, so that the waste is turned into treasure, the high-concentration waste water produced in the production process of the para-ester can achieve up-to-standard emission after treatment at the relatively low cost, and the para-ester and the related industry of the para-ester can realize sustained development.
Owner:ZHEJIANG JINGGUANG IND

A kind of method for preparing isoborneol by continuous saponification of isoborneol acetate

The invention discloses a method for preparing isoborneol through continuous saponification of isobornyl acetate. It uses sodium hydroxide and isobornyl acetate as raw materials, and prepares a white product through saponification, distillation, layering, water washing, crystallization and other steps. Isoborneol crystals. The saponification reaction can be operated continuously in an oscillating flow reactor, a static mixer or an ultrasonic mixer; polar solvents are added to the reaction to make the saponification reaction proceed in a homogeneous phase, which can shorten the reaction time and lower the reaction temperature. The conversion rate of bornyl ester is above 99%, and the product yield is above 95%, indicating that this method has low production energy consumption and high product yield.
Owner:FUZHOU UNIV

Method for planting water melons

The invention discloses a method for planting water melons. The method includes the following steps that in land selecting and seedling growing, sandy loam soil with loose soil texture is selected, seedling growing transplanting is adopted for planting of the water melons, nutritional soil is prepared, according to the proportion of the nutritional soil, 1 / 3 burned soil and 2 / 3 small and broken rice are used, then a nutrition bag or nutrition cup is used for containing the soil, 2 days before seeding, the nutritional soil is thoroughly drenched with clear water, and sterilizing is conducted with a small quantity of a Bordeaux mixture with the proportion being 1:1:100; a small arch greenhouse is set up, horizontal slope type planting ridges are made, the gradient is 55 degrees, and the interval between every two planting ridges is 140 cm. According to the method for planting the water melons, firstly, through soil fertilizer application, the structure of the soil can be improved, nutrients of the soil can be supplemented, the fertility of the soil can be enhanced, meanwhile, economic incomes can be increased, secondly, early-stage input can be well reduced, operation is easier, finally, contact between melons and fruits and soil can be reduced, the effects of keeping moisture and restraining weed growth can be realized, and better application prospects are realized.
Owner:颍上县十里生态农业科技有限公司

The Cultivation Method of Genuine Danshen

The invention relates to a cultivation method of genuine salvia, which comprises the following steps of: establishment of a salvia germplasm resource garden, selection of representative genuine salvia germplasm resources, identification of genuine salvia genome karyotype structure, determination of genuine salvia DNA bar codes, artificial mutation to obtain autotetraploid, sexual hybridization to obtain triploid salvia permanent hybrids, detoxification treatment, tissue culture seedling cloning and proliferation, bottle seedling transplanting, transplanted seedling management, new species comparison and testing, determination of the medicinal material yield and the main drug effective components, and genuine salvia new species determination and species identification. The genuine salvia obtained in the invention is, so far, the only population that has two great natural advantages: the polyploid advantage and the heterosis, and the advantages are giant and irreplaceable. Therefore, the method of the invention is an effective method for cultivating genuine traditional Chinese medicine with strong biotic stress and abiotic stress capability by using traditional Chinese medicine genuine functional genomes and feature genes and based on inherent genes of genuine traditional Chinese medicine.
Owner:陈瑞阳

Modified macroporous polyvinyl alcohol resin and method for separating and purifying Chinese medicinal herb polysaccharide

The present invention relates to a modified macroporous polyvinyl alcohol separation resin and the method of separating and purifying herbal medical polysaccharide. The polyvinyl alcohol resin microsphere is reacted with epichlorohydrin under an alkaline condition and then is reacted with trimethylamine, triethylamine or diethylenetriamine under the alkaline condition and washed by water and dried. An aqueous solution of crude polysaccharide (such as a glycyrrhizae polysaccharide, a milk vetch root polysaccharide, a ganoderma polysaccharide, a mushroom polysaccharide, a ginseng polysaccharideetc) is directly separated and purified by the modified macroporous polyvinyl alcohol separation resin column, and 85 percent of the major impurity of protein and pigment in the aqueous solution of crude polysaccharide can be removed only by one step, and the separation liquid can be dried to obtain a polysaccharide product, the purity of which is more than 80 percent.
Owner:TIANJIN DEOUTE BIOLOGY MEDICINE SICENCE & TECH

Nitrogen application method for balancing relation between supply and demand of nitrogen in intercropping of peas and corn

InactiveCN110122218AIncrease profitSolve the problem of imbalance between supply and demandFabaceae cultivationFertilising methodsLine widthField pea
The invention provides a nitrogen application method for balancing the relation between supply and demand of nitrogen in intercropping of peas and corn. The nitrogen application method comprises the steps as follows: S1, intercropping planting of corn and peas is performed in the line number ratio of (2-3):4, and the line width ratio of corn belts to pea belts is (8-11):8; basic pure nitrogen is applied to the corn belts and the pea belts, pure phosphorus is applied, turning is performed after fertilization, and the corn belts are covered with mulching films; S2, pure nitrogen is dressed on the corn belts and the pea belts for the first time at the stem elongation stage of corn; S3, pure nitrogen is dressed on the corn belts and the pea belts for the second time at the flare opening stageof corn; S4, pure nitrogen is dressed on the corn belts for the third time 10 days after blooming of corn, and no fertilizer is applied to the pea belts. Nitrogen is supplied at different stages and belts according to nitrogen demand laws of the corn and the peas, interspecific competition of corn and peas is regulated, and the problem of imbalance between supply and demand of nitrogen in traditional production of intercropping of peas and corn is effectively solved; meanwhile, by regulation of interspecific competition and complementation of an intercropping system, the synergistic utilization of nitrogen is promoted, the utilization rate of nitrogen fertilizer is increased, and the yield is increased.
Owner:GANSU AGRI UNIV

Fixation and strip tidying machine for tea processing

The invention discloses a tea leaf processing fixation and strip tidying machine, which comprises a frame, and a leveling part, a fixation part and a strip tidying part arranged on the frame, one side of the fixation part is provided with a conveying mechanism for conveying tea leaves, the leveling part is arranged at the upper end of the conveying mechanism at one side of the fixation part, and the strip tidying part is arranged at the lower end of the conveying mechanism. The strip tidying part is arranged at one end, far away from the leveling part, of the fixation part, and a transition guide groove is formed between the strip tidying part and the fixation part; the de-enzyming and carding machine is low in manufacturing cost, reduces the labor cost, is beneficial to continuous production, and improves the production efficiency.
Owner:GUIZHOU FENGGANG COUNTY FIELD CHARM TEA CO LTD

A kind of farmland soil three-dimensional finishing machine

The invention discloses a three-dimensional finishing method for farmland soil. The method performs three-dimensional finishing on the mellow soil layer of one finishing belt and the raw soil layer of the adjacent finishing belt, so as to obtain the mellow soil belt and raw soil which are alternately distributed horizontally. It can realize the purpose of thickening the mellow soil layer and accelerating the ripening of the raw soil. At the same time, it discloses a three-dimensional soil finishing machine for farmland, including a frame. The inner sides of the two side plates of the frame are sequentially fixed from right to left. The three-dimensional finishing mechanism, Raw soil three-dimensional finishing mechanism and soil distribution and paving mechanism, wherein, mellow soil three-dimensional finishing mechanism includes mellow soil tillage mechanism and mellow soil shovel mechanism; raw soil three-dimensional finishing mechanism includes raw soil tillage mechanism and raw soil shovel mechanism; The soil distribution paving mechanism includes a transfer mechanism. The technology and supporting equipment can simultaneously arrange the soil three-dimensionally in the horizontal and vertical directions, thicken the mellow soil layer and separate the raw soil layer in the short term, accelerate the maturation of the bottom raw soil in the long run, and realize the overall and long-term thickening of the soil in the ploughing layer. Fertilize.
Owner:YUNNAN AGRICULTURAL UNIVERSITY

A pvc sheet manufacturing production line

The invention discloses a PVC sheet material manufacturing production line and relates to the field of machine manufacturing. According to the technical scheme, the production line includes a first material receiving device comprising a pedestal. A support bench and a console are respectively arranged on two sides of the pedestal. A central shaft is arranged between the support bench and the console. Two ends of the central shaft are sleeved with support frames, wherein a plurality of reeling shafts are disposed between the two support frames. Each reeling shaft includes a rotating block and afixed rod. A third motor, which drives the reeling shafts to rotate and is fixedly connected to the support frames, is arranged at one side of each reeling shaft. Telescopic members snapped with thereeling shafts are arranged on the other sides of the reeling shafts. The output shaft of each third motor penetrates through the support frames. A rotating groove, which is used for snapping the rotating blocks, is arranged on one side, which is towards the reeling shafts, of the output shaft of each third motor. Each telescopic member includes a telescopic air cylinder fixedly connected to the support frames. A piston rod of each telescopic air cylinder passes through the support frames and is fixedly provided with a fixing sleeve. A fixing groove for snapping each fixed rod is disposed on one end, which is towards the reeling shafts, of each fixing sleeve. The production line can increase reeling efficiency.
Owner:温州市隆昌塑料有限公司

A method to improve flowering rate and fruit quality of longan based on accumulative growth degree days in growth period

ActiveCN104255357BAchieve early maturity and listingEfficiencyCultivating equipmentsHorticulture methodsProduction rateGrowing degree-day
The invention discloses a CGDD (Cumulative Growing Degree-Days) based method for improving the longan florescence rate and the fruit quality through flower forcing. The CGDD based method is established on the basis of the years of practical experience, a growing period and GDD (Growing Degree-Days) based innovative flower forcing technology is innovatively and systematically utilized, and the reasonable timing young sprout forcing, flower forcing and fruit setting is guided. The GDD are used for reflecting the accumulated heat of every growing period of longan trees under the actual environmental conditions and accordingly the flower forcing benefit of the GDD is remarkable and the accuracy is high. The expected accuracy of the expected effect of every growing period, namely the young sprout forcing period, the flower forcing period, the fruit setting period and fruit growing period, is within the range of plus or minus 5% through the CGDD. According to the CGDD based longan chemical flower forcing method, flower buds can be effectively induced, the physiological photosynthetic effect can be enhanced, the flowering and fruit setting of the longan trees can be promoted in a warm climate, the market sales production of logan fresh fruits is significantly improved, the fruiting can be achieved ahead of time, and high production economic returns can be obtained. According to the CGDD based longan flower forcing and management matching technology, the sustainable production of longan under the climate warming environmental conditions can be promoted.
Owner:ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI

A method for preparing l-aspartic acid

The invention discloses a method for preparing aspartase and L-aspartic acid by using fumaric acid fermentation liquid. The method comprises two parts, one is to cultivate Escherichia coli to produce aspartase in the supernatant part of the fumaric acid fermentation broth, and the other is to use the solid precipitation part of the fermentation broth to react calcium fumarate with ammonium sulfate to generate ammonium fumarate, After concentration, L-aspartic acid is generated under the action of aspartase. This method realizes the production of L-aspartic acid by the glycosyl route, realizes the full utilization of fumaric acid fermentation broth and achieves the goal of energy saving and emission reduction, effectively reduces the production cost of L-aspartic acid, reduces The pollution to the environment makes L-aspartic acid obtain sustainable production, and has a wide prospect of industrialized production.
Owner:NANJING TECH UNIV

Air cylinder assembling equipment and assembling method

The invention discloses air cylinder assembling equipment and an assembling method, and belongs to the field of air cylinder assembling. The equipment comprises an electrical control system, an air cylinder rod core grabbing and arranging mechanism which is electrically connected with the electrical control system, an outer tube automatic feeding mechanism, a front top sleeve identification direction and mounting mechanism, an air cylinder inner and outer tube combination mechanism and a product output mechanism, wherein the air cylinder rod core grabbing and arranging mechanism, the outer tube automatic feeding mechanism and the front top sleeve identification direction and mounting mechanism are arranged on the periphery of the air cylinder inner and outer tube combination mechanism, andthe product output mechanism is connected with the air cylinder inner and outer tube combination mechanism. According to the equipment, under the condition that an existing air cylinder rod core is finished, so that the mounting direction and position of a front top sleeve can be avoided, the product quality is improved, the production efficiency is improved, the equipment is simple in structure,and is reasonable in design, and the method is easy to implement.
Owner:ANHUI LAITE GAS SPRING CO LTD

Avocado Tree Circumcision Methods

The invention discloses an avocado tree girdling method. The method comprises the steps that A, in the whole growing process of avocado trees from June of the first year after the avocado trees are planted, roots of tips with apical growth advantages are girdled 1-4 circles in the circumferential direction; B, since the second year after the avocado trees are planted, roots of branches are spirally girdled 2-5 circles during the period from the first day to the 20th day of November each year; C, since the second year after the avocado trees are planted, thin paste of yellow mud is smeared on girdling wounds of the avocado trees with yellow blades and too many flowers caused by girdling and the girdling wounds are wrapped in February and March each year; D, since the third year after the avocado trees are planted, the roots of the branch tips or the parts above the positions which are spirally girdled during the period from the first day to the 20th day of November last year are spirally girdled 2-3 circles during the period from the first day to the 20th day of May and the period from the first day to the 20th day of August each year. The avocado tree girdling method has the advantages of promoting healthy growth of the avocado trees, improving the output and quality of avocados, dwarfing crowns, making normal production ahead of time and the like.
Owner:GUANGXI POLYTECHNIC
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