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353 results about "Overwintering" patented technology

Overwintering is the process by which some organisms pass through or wait out the winter season, or pass through that period of the year when "winter" conditions (cold or sub-zero temperatures, ice, snow, limited food supplies) make normal activity or even survival difficult or near impossible. In some cases "winter" is characterized not necessarily by cold but by dry conditions; passing through such periods could likewise be called overwintering.

Method for predicting water area where water bloom of blue algae occurs first next year in large shallow lake

The invention discloses a method for predicting the water area where water bloom of blue algae occurs first next year in a large shallow lake, which is characterized by comprising: based on the area and characteristics of water, setting a monitoring point for sampling water and bottom sediment; characterizing the time and spatial distribution of blue algae by using pigment analysis; characterizing the activity of blue algae in all lake areas by using photosynthesis activity and esterase activity of cells; acquiring meteorological data of the lake areas, and determining an effective wind field; and building an ecological dynamic module to predict the area where the water bloom of blue algae occurs first next year. In the method disclosed by the invention, the biomass and growth activity of the blue algae and the effective wind field are regarded as the common triggering factors of the formation of water bloom, the growth and transport of the blue algae and the driving factors of the formation of the water bloom are analyzed to estimate the change law of the ecological pattern of overwintering and resurrection of blue algae, the formation of water bloom of blue algae is predicted from multiple angles, parameters are integrated by the module, and the prediction result is directly displayed in a blue algae biomass contour map mode according to a time sequence.
Owner:NANJING INST OF GEOGRAPHY & LIMNOLOGY

Grape unburied cold prevention and overwintering and complete pruning cultivation mode

InactiveCN102119644AExemption from burialSafe winterCultivating equipmentsThermal insulationDitch
The invention discloses a grape unburied cold prevention and overwintering and complete pruning cultivation mode. The cultivation mode comprises the following steps: adopting ditch planting, wherein fielding planting is performed according to line spacing; reshaping grapes, wherein the grapes have low trunks with single or double horizontal arms, the height of the trunks is 40 to 50 centimeters, and the horizontal vines are 40 to 50 centimeters above the bottom of ditches and are fixed on the first iron wires of trellises; adopting a V-shaped trellis forming mode, wherein first iron wires are arranged at a place which is 40 to 50 centimeters above the bottoms of the ditches, the trellis height is 2 meters, four iron wires are arranged, new branch tops grow upwards and obliquely along the V-shaped trellises and fall down naturally when growing to the tops of the trellises, and grape burying labor is saved; and after pruning in winter, covering a grass curtain which is 5 to 10 centimeter thick or other like cold-prevention materials on the horizontal main vines and adding a layer of plastic waterproof thermal-insulation material in snow areas in north Xinjiang province to ensure the grapes can overwinter safely. The overwintering problem of grapes is solved, pruning method is simplified, the grape yield and quality are stable, the comprehensive benefits are high, and the mode has a high promotion and application value.
Owner:XINJIANG AGRI UNIV

Method for improving overwintering survival rate and qualities of oreochromis niloticus fries

The invention discloses a method for improving overwintering survival rate and qualities of oreochromis niloticus fries. Before overwintering, feeds with 12% to 14% fat level are fed to the fries, and soybean oil and fish oil are blent in a proportion of 4:1 to form fat sources. Fatty acids--linoleic acids and linolenic acids which are necessary to growth of oreochromis niloticus are mainly increased so as to improve energy reserve. Low-temperature stress resistance of the oreochromis niloticus can be improved by low temperature acclimatization and the low temperature adaptability is improved. During overwintering, feeds with 1.5% to 2% compound Chinese herbal medicine are fed to the fries, so that damages of the low-temperature stress to fish bodies can be effectively relieved, the non-specificity immunity of the fish bodies is improved, and the overwintering survival rate and fry qualities are improved. Meanwhile, according to the above three steps, material selection and facility configuration are easy, the price is relatively low, processes are simple, traditional problems that overwintering costs are high, the survival rate of the fries is low, and qualities of the fries are poor are excellently solved, and environment-friendly and physically beneficial breeding requirements can be met.
Owner:FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI

Method for obtaining batch American shad fertilized ova

A method for obtaining batch American shad fertilized ova is characterized in that a plastic greenhouse cement pond is used for reserve parent overwintering culture, local fresh water is used, the salinity is increased gradually during water changing till the final salinity reaches 12%o to 15%o, the water temperature for overwintering culture is kept at more than 8 DEG C, and bait is NO.3 feeds of commercial freshwater fish expanded pellet feeds; parent spring intensive culture is between the end of March and the beginning of April, and as the temperature rises, two sides of the plastic greenhouse are used for ventilation, plastic film is dismounted, shading film is added, and the water temperature in a cement pond is kept between 16 DEG C and 18 DEG C; the salinity is reduced gradually each time water is changed, and the salinity is reduced by 2%o to 3%o each time till the final salinity reaches the salinity of local river water; parents for promoting spawning are selected to be put in curved spawning promoting channels between the middle of May and the beginning of June, the stocking density of the spawning promoting parents is between 0.8 shad/m<2> and 1 shad/m<2>, a natural spawning fertilization mode is used, the fertilized ova are collected in time after the parents spawn, the operation is performed in water, and the fertilized ova are moved to an incubating pond after counting.
Owner:SHANGHAI FISHERIES RES INST

Removal of Provenance Sources of Overwintering Bloom Cyanobacteria in Large Shallow Lakes

A removing method of overwintering water-blooming cyanobacteria provenances in large-scale shallow lakes is disclosed. In the overwintering period and the recovery period, algae-controlling agents are respectively used in distribution areas of overwintering water-blooming cyanobacteria provenances twice to perform background removal of overwintering cyanobacteria provenances in water and sediment, wherein the first background removal is performed in the overwintering period, and the second background removal is performed in the recovery period before cyanobacteria recover; and the algae-controlling agent comprises rice straw and H2O2 with effective concentrations. The invention is based on the self-growth and recovery rule of algae; environment-friendly algae-controlling agents are used for prevention and control treatment at provenance regions for cyanobacteria growth and in bottleneck periods - the overwintering and the recovery periods; overwintering water-blooming cyanobacteria provenances in large-scale shallow lakes can be effectively removed; cyanobacteria water bloom can be treated from the source; and the method is a new approach for the prevention and control of the generation of harmful algae water bloom.
Owner:NANJING INST OF GEOGRAPHY & LIMNOLOGY

Artificial seed production and seedling method of tilapia

Disclosed is an artificial seed production and seedling method of tilapia, the method comprises the steps of parent fish breeding and cultivation, induced spawning and ova picking, artificial incubation, seedling cultivation process. The parent fish breeding is at lease implemented twice, when young fish is cultured to reach the weight of 50 to 100 g and before overwintering, the female and male parent fish is chosen by the proportion of 2:1 to 1.5, and respectively put into a cultivation e pond to culture according to different genders. Mature tilapia parent fish is put into an induced spawning pond, and the natural estrus and spawning of the parent fish are promoted by utilizing the ecological simulation method, fertilized eggs are taken out from oral cavity of the female fish and removed to a hatching slot to hatch, then the fertilized eggs are impacted by micro water current to roll and hatch completely in the hatching slot, after newly-hatched larva is flowed into a receiving pond and is screened by genders, the newly-hatched larva is sent into a breeding pond to culture. The method is scientific and reasonable, the technology is easy to be controlled, the investment is low, the facilities are simple, the method is easy to be implemented, the artificial breeding of tilapia is realized. The method has the advantages that the breeding time is short, the fish fry quality is good, the survival rate is high and the like, the method is applicable to large-scale breeding production, and has the good economic benefit.
Owner:MAOMING MAONAN SANGAO FISHERY DEV

Method for ecologically and early breeding Yangtze River coilia ectenes in pond greenhouse

The invention provides a method for ecologically and early breeding Yangtze River coilia ectenes in a pond greenhouse, and relates to coilia ectenes cultivation. The method comprises production steps of parent overwintering and strengthening cultivation, breeding parent stocking, mysis inoculation, daily management, fish fry number estimation and parent removing. The method is characterized in that when the water temperature of an outer pond is reduced to 7-8 DEG C from December to January in the following year, healthy two-age coilia ectenes without surface damage is taken as parent fish and transferred to the pond greenhouse for overwintering and strengthening cultivation; after the parent fish enters the greenhouse, 3 kilograms of exopalaemon carinicauda are put into the pound for each mu, and the mysis is inoculated; from the end of March to the middle ten days of April, the water temperature rises to 15-16 DEG C, overwintered and strengthened parent fish is picked and transferred to an ecological breeding pond, growth and feeding conditions of the fish fry are checked every one week, and the density of fish bait in water is adjusted according to the checked conditions; a seine is used for removing the parent fish in the middle ten days and last ten days of June, 1, 000-2, 000 fish fry can be generally seined each mu, the fish fry specification is that the total length is 7-10 cm and the weight is 1.8-2.5 g, and the fish fry can be taken as culturing offspring seeds.
Owner:上海市水产研究所(上海市水产技术推广站)

Method for conserving overwintering breeds by fencing tilapia

The invention relates to a method for conserving overwintering breeds by fencing tilapia, which is characterized by comprising the following steps that: a supporting warm water area is arranged near a pond or a reservoir region; a fence is arranged in the pond or a reservoir; a fence head line is fixed on fixing piles on two sides of a shore by use of a wire rope, and waterproof thermal insulation materials are sewn on the fence head line and support piles; pipe bags are sewn on a fence foot line and are filled with fine sand as sinkers; a doorway of the fence is provided with the doorway where water and fishes can freely go in and out; warm water is pumped in to raise temperature; the doorway of the fence is provided with a feed table so as to ensure that the tilapia is easy to find the doorway of the fence through food inducement; as the water temperature in the fence is higher than that of an outer pond, the tilapia automatically swims into the fence to overwinter safely; and an oxygen-increasing machine is arranged in a fence water area to supplement overwintering fingerlings with oxygen so as to prevent fish aggregation from causing oxygen deficiency. The method ensures that the water temperature is kept within a survival range for the safe overwintering of the tilapia through less energy consumption and light labor, thereby raising the survival rate of the tilapia and helping the tilapia to smoothly overwinter and conserve breeds.
Owner:FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI

Extraction method of winter wheat plantation information

The invention relates to an extraction method of winter wheat plantation information. The extraction method of winter wheat plantation information includes the steps: based on the phenological characteristic of overwintering of winter wheat, determining and obtaining the remote sensing image data of the period of seedling establishment of winter beat and the remote sensing image data of the periodof naked land of winter wheat, and respectively preprocessing the two periods of remote sensing image data; combining with the historical cultivated land vector data, determining the cultivated landrange, and performing multiple-dimensional segmentation on the cultivated land range; respectively calculating the two periods of remote sensing image data, and obtaining the normalization vegetationindexes of two periods of winter wheat; and combining with the cultivated land range and the normalization vegetation indexes of two periods of winter wheat, automatically determining the thresholds of the normalization vegetation indexes, and realizing automatic extraction of the winter wheat plantation information. The extraction method of winter wheat plantation information utilizes the historical cultivated land vector data, fully excavates the geographical information of the early stage, has the advantages of simple principle, high applicability, high precision and processed technology, can realize automatic extraction and can be applied to area monitoring of the winter wheat cultivated area widely.
Owner:TWENTY FIRST CENTURY AEROSPACE TECH CO LTD

Rapid propagation method of ecological light matrix walnut container seedlings

InactiveCN104186135ARapid emergenceMeet the growth needs of nitrogen, phosphorus and potassiumHorticulturePotassiumNutrient
The invention discloses a rapid propagation method of ecological light matrix walnut container seedlings. The rapid propagation method of the ecological light matrix walnut container seedlings comprises the steps of harvesting and preprocessing seeds, processing and cultivating a stock seed bed, preserving heat for overwintering and soil-detached grafting; preparing a container nursery matrix, installing a nutrition pot, reducing the temperature for over-summering, additionally applying fertilizers to nursery stocks and performing transplanting from the seedling nursery and transportation. By means of the seedling raising technique, the seedling emerging speed is high, and healthy and strong grafted seedlings which can be transplanted from the seedling nursery to a large field can be cultivated only by taking 17 months from seed harvesting to the transplanting from the seedling nursery. By adopting the nursery matrix, a fermented organic fertilizer and an inorganic fertilizer are combined, the nitrogen, phosphorus and potassium demands in the growing process of walnut trees are met, the fertility is durable, the nutrition is sufficient, and grown walnut tree seedlings are good in quality. The degradable nutrition pot is adopted, transplanting with nutrient soil is achieved, root systems are not damaged during transplanting, the transplanted seedlings grow directly, and the survival rate can be larger than 98%. The nutrition pot matrix is light, transportation in mountainous areas is facilitated, and the degradable nutrition pot does not cause environmental pollution. In the rapid propagation method, a greenhouse facility is adopted, high-density and intensive propagation is achieved, seedling cultivation land is remarkably saved, and the benefit is good.
Owner:重庆中欧农业发展有限公司 +2

Method for selectively breeding excellent strains of saline-alkaline tolerant tilapia

The invention discloses a method for selectively breeding excellent strains of saline-alkaline tolerant tilapia. The method includes steps of collecting at least three different strains of Nile tilapia to be used as selective breeding base population and evaluating the saline-alkaline tolerance; carrying out one-generation saline-alkaline tolerant selective breeding on the different strains of Nile tilapia in every year and continuously selectively breeding at least two generations; mixing the different strains of saline-alkaline tolerant Nile tilapia with obvious growth superiority with one another after saline-alkaline tolerant selective breeding is carried out on the different strains of saline-alkaline tolerant Nile tilapia, then carrying out saline-alkaline tolerant selective breedingon the different strains of saline-alkaline tolerant Nile tilapia and continuously selectively breeding at least four generations to obtain the saline-alkaline tolerant Nile tilapia of the excellentstrains. Saline-alkaline tolerant selective breeding procedures include reproduction pond preparing, parent tilapia selecting and rearing, fry hatching and fishing, screening and intensified culture and overwintering. The method has the advantages that the method is high in reliability, operability and efficiency; novel technical ways can be developed for selectively breeding stress-resistant varieties of fish, and the method has important significance and application value in popularization of rearing of stress-resistant improved varieties of cultured fish.
Owner:SHANGHAI OCEAN UNIV

Mutation breeding method for cunninghamia lanceolata

The invention discloses a mutation breeding method for cunninghamia lanceolata. The method comprises the following steps: especially adopting ripen seeds of a cunninghamia lanceolata seed garden; carrying out low-temperature overwintering treatment, carrying out constant-temperature seed soaking stimulation on a gibberellin solution with specific concentration, immediately putting the gibberellin solution subjected to constant-temperature seed soaking stimulation into clear water, carrying out variable-temperature soaking for 3 days, and carrying out sprout promoting treatment; respectively carrying out colchicine mutation treatment, ethylmethane sulfonate (EMS) mutation treatment and sodium azide (NaN3) mutation treatment; and finally seeding and germinating the cunninghamia lanceolata seeds which are subjected to mutation treatment, so as to obtain a large group of cunninghamia lanceolata mutation seedlings. The cunninghamia lanceolata mutation seedlings obtained by the mutation method have the characteristics of obvious phenotypic characteristic variation, large population growth characteristic variation range and the like; a great number of mutated cunninghamia lanceolata materials can be formed within a short period of time by the method disclosed by the invention; and a foundation is laid for breeding of a new variety of cunninghamia lanceolata.
Owner:BEIJING FORESTRY UNIVERSITY

Breeding method of radish with purple peel

The invention discloses a breeding method of radish with purple peel. According to the method, a male sterile plant of a 'dahongpao' radish is used as a sterile source, a six-generation selfing line c152b of a 'cuanxinhong' radish is used as a transformation material, and a male sterile line c152a is obtained by six-generation backcross. A 'baiyuchun' radish is used as an original material, and a high-generation selfing line s-4-3-2-5-1-6-3 with stable inheritable characters can be obtained by seven-generation single plant selfing. The male sterile line c152a is used as a female parent, and the high-generation selfing line s-4-3-2-5-1-6-3 of 'baiyuchun' is used as a male parent, so that one-generation hybrid variety, named as 'ziyu', of the radish with the purple peel can be obtained by hybrid of the male parent and the female parent. According to the obtained variety 'ziyu', the upper half part of the surface peel of a radish is light purple, the lower half part of the surface peel of the radish is white and white like the color of meat, the root peel of the radish is smooth, the peel of the radish is thin, the radish meat is relatively crisp, the content of water in the radish is relatively high, the radish has the flavors of a white radish and a red radish, the yield is high, and the radish with the purple peel can be suitable for cultivation in autumn and cultivation overwintering or in early spring in greenhouses in the middle and lower reach areas of Yangtze river.
Owner:NANJING INST OF VEGETABLE SCI

Method for Badam nursery stock whole-covering provisonal planting cold-proof overwintering

The invention discloses a method for Badam nursery stock whole-covering provisonal planting cold-proof overwintering. Before soil is frozen up, a hand-excavation north-south rectangular provisonal planting pit with the consistent height with a nursery stock and with certain length is adopted, and the nursery stock is lifted and bundled; after the nursery stock is subjected to root dipping and slurry dipping disinfection processing, soil, carbendazim and water are stirred at the ratio of 100:5:100 to 100:5:120 to obtain even soupy thick slurry; the root of the lifted nursery stock is dipped with the slurry; the roots of the nursery stocks are downwards intensively embedded into sandy loam in different rows in sequence into a cold-proof pit which is dug in advance for provisonal planting; halms or straws are vertically inserted at a certain distance to keep the nursery stocks ventilating; after the pit is fully planted with the nursery stocks, the nursery stocks are disinfected; the top of the provisonal planting pit is covered with a slipcover with a certain thickness. According to the method, the Badam nursery stock can be protected to go through the winter without being frozen to the maximum degree. Meanwhile, the method can perform the purpose of planting nursery stock provisonal planting in winter, the planting survival rate is high, and the method has a wide practicality.
Owner:新疆林科院经济林研究所

Finless eel self-reproducing, self-breeding and self-cultivating mode

The invention relates to a finless eel self-reproducing, self-breeding and self-cultivating mode. The mode comprises a first step of finless eel simulated ecological breeding and cultivating by means of net cages, and a second step of commercial finless eel breeding. The first step comprises six processes of parent finless eel cultivation and selection; breeding net cage arrangement; parent finless eel throwing; parent finless eel feeding and management; fry cultivating net cage arrangement; and fry collecting, cultivating and binning for overwintering. The second step comprises four processes of first-instar finless eel throwing at right time according to required density; breeding net cage arrangement; finless eel feeding and management; and parent finless eel preparation. According to the invention, all the processes are self-sufficient as fries are bred by people, so that a phenomenon that the fries which are bought from the market with high price have different qualities is avoided; the fries can be thrown in advance, so that the cultivation period is prolonged, and the finless eel can be cultivated from May to October; and furthermore, feeding habitat conversion is not required for artificial fries, so that stress responses caused by feeding training and environment changing are avoided, and the stocking success rate is improved.
Owner:FISHERIES RES INST ANHUI ACAD OF AGRI SCI
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