36results about How to "Extend the breeding time" patented technology

The invention relates to the technical field of prawn culture, in particular to a biological regulation culture method for large prawns. The method includes: building a standard high-place culture pond, comprehensive treatment of water source quality, culturing basic baits, putting in prawns, biological regulation of water quality and diseases of the high-place culture pond and the like. The method has the advantages that an efficiency and environment-friendly large prawn culture mode is provided, biological regulation using beneficial bacterium and algae is adopted, the prawns cultured by the method are large, high in quality and yield and good in culture effect, the problem of residual chemicals is eliminated, a novel development approach is provided for prawn culture industry, and the method is promising in market prospect.

The invention discloses a pond poly-culture method for tilapia mossambica and litopenaeus vannamei. The pond poly-culture method comprises the following steps of: adding quick lime into a dry pond in spring every year, injecting water to carry out water sterilization, adding 50 kg-100 kg of fermented chicken manure into each mu of the pond when the water temperature is stabilized to over 20 DEG C, injecting water until water depth is 40cm-60cm, waiting for 1-2 weeks, adding 8000-12000 litopenaeus vannamei shrimp seeds into each mu of the pond, and feeding special poly-culture feed; injecting water after 15-20 days until water depth is 100cm-120cm, adding 1500-2500 tilapia mossambica fries into each mu of the pond, feeding the poly-culture feed, injecting water after 15-20 days until water depth is 200cm-250cm, oxygenating for 3-7 hours every day, and mixing 20kg-30kg of the quick lime with water to spray for each mu of the pond once to twice every month; catching the tilapia mossambica and litopenaeus vannamei after 120-150 days. According to the pond poly-culture method disclosed by the invention, the special poly-culture feed is fed, prawn quality is high, water pollution is less, management is easy, cost is low and benefits are high.

The invention relates to a method for high-density net cage monopterus albus breeding in a vinyl house and belongs to the technical field of fishery science application. The method is characterized in that a breeding net cage, a micro flowing water system and a temperature rising facility used at low temperatures are arranged in the built vinyl house so that the water level and the water temperature in a breeding system can be maintained 0.5-0.8 m and 25-28 DEG C respectively, and monopterus albus can be bred in the breeding net cage. The put volume of fries of the monopterus albus is 5-6 kg/m<2>, feed feeding the monopterus albus is a feed mixture of animal feed and compound feed special for the monopterus albus, and the feed amount a day is 8-12 percent the weight of the monopterus albus in the net cage. According to the method for high-density net cage monopterus albus breeding in the vinyl house, high-density breeding of the monopterus albus can be achieved, the breeding time of the monopterus albus is prolonged by five months or more each year, the survival rate of the monopterus albus is more than 95 percent, compared with a pond net cage breeding manner, the yield per unit area is improved by 5-8 times, and the method has the advantages that the breeding density is large, the monopterus albus grows fast and is high in quality, cost is low, and catching is convenient.

The present invention discloses a high-yield culture method of sweet fish comprising the control of breeding time of fry in a culture pond, water temperature for culture and culture density, feed throwing and feeding and prevention of disease; the breeding time is from the end of December to the end of March next year; the water temperature for culture is 13 to 28 Celsius degrees and the culture density is that 360 to 380 fries per cubic meter in 20 days, 200 to 240 fries per cubic meter in a period of 20 to 40 days, 150 to 180 fries per cubic meter in a period of 40 to 60 days and 80 to 120 fries per cubic meter 60 days later; the feed amount thrown every day is 2 to 5 percent of the gross weight of sweet fish and the feed is thrown and fed by 2 to 5 times; the feed is added with grain feed of 10 days after breeding and only grain feed is used 20 to 50 days later; 5 kg garlic or 3kg good liver and gall is added in the feed per ton for a continuous three days every month and povidone iodine or calcium oxide is used for sterilization for a continuous three days every month. The present invention is characterized by long culture time, high survival rate and high per mu yield.

The invention discloses a method for fast raising cedar seedlings and relates to the technical field of plant propagation. Instead of the traditional way of seeding cedar in spring, a way of seeding with harvesting is used. Collected seeds are treated. Container bags are used to raise seedlings in a solar greenhouse specially built. The processes such as seedling management and nursery transplanting are performed then to achieve raising the cedar seedlings. The method is simple and is easy to operate. The cedar seeds are promoted to germinate in advance, germination rate of the seeds is increased, seedling raising speed is increased, the raising time is brought forward evidently, and accordingly incidence rate of damping off in cedar is reduced and survival rate of the cedar seedlings is increased.

The present invention relates to saline algae, provides one kind of low temperature tolerant saline algae and its ultraviolet mutagenesis breeding process and identifying method. The low temperature tolerant saline algae features its light illuminating growth at 3-10deg.c to reach (1.05-8.11)x10<6> cell/ml in the cell density 2.1-21 times higher than the contrast; the genetic similarity coefficient to wild strain of 0.680-0.910; and increased or decreased protein zone(s) compared with wild strain.

The invention discloses a poultry cultivation cage between crop rows. The poultry cultivation cage comprises a feeding cage, a power supply box and a free-ranging cage and is characterized in that thefeeding cage and the free-ranging cage are integrally connected through a connecting channel, the feeding cage is a centralized poultry feeding place, and the free-ranging cage is a place where poultry moves around and eats weeds and insects and is placed between the crop rows; an automatic poultry driving device used for driving the poultry from the free-ranging cage to the feeding cage is arranged in the free-ranging cage; the power supply box is connected with the automatic poultry driving device, controls the action of the automatic poultry driving device and supplies power for the automatic poultry driving device. The poultry cultivation cage has the advantages that green and novel facility-aided cultivation of the poultry or other small animals in a field where crops grow can be achieved, the crops can be various dry-land grain crops suitable for sowing in drill and commercial crops such as most of vegetables and medicinal plants, and the poultry cultivation cage is suitable fora sloping field, a flat field, a terraced field and irregular terrain and high in actual popularization and application value.

The invention discloses a greenhouse cutting seedling cultivating method of bamboo willow seedlings. The method includes the following steps of 1, arrangement of a greenhouse; 2, arrangement of a spraying system; 3, preparation of tourmaline; 4, selection of scions; 5, treatment of the scions, 6, conduction of cutting; 7, blending of a nutrient solution; 8, spraying of the nutrient solution. According to the cultivating method, rapid seedling cultivation is conducted on the clipped scions in a seedling cultivation box, absorption of water and nutrients is achieved through the function generated by matching between the tourmaline and magnets in the seedling cultivation process of the seedling cultivation box, accordingly the seedling cultivation time of the cut scions in the seeding cultivation box is prolonged, and in this way, the growth cycle of bamboo willow seedling plantation is raised; besides, the seedling cultivation box is adopted for seedling cultivation, and due to the fact that the growth condition in the seedling cultivation box is consistent, the cultivated bamboo willow seedlings are uniform in growth vigor and high in survival rate.

The invention discloses a nucleate pearl containing human bone ash and a preparation method of the nucleate pearl, and belongs to the production field of manually cultivated pearls. The preparation method comprises the following steps: placing the human bone ash in the nucleus of a manually cultivated pearl; conducting the conventional cultivation process of nucleate pearls on the pearl to obtain the nucleate pearl containing the human bone ash; placing an identifying marker into the nucleus of the pearl to achieve the goal of identification, wherein an RFID (ratio frequency identification devices) label is the best choice for the marker. The nucleate pearl integrates specific emotion of a specific group to the dead and jewel features of the pearl, thereby having not only jewel value of an ordinary pearl, but also special meaning of a memorial.

The invention relates to a greenhouse larva breeding method for Macrochium rosenbergii. According to the invention, through building of a breeding pond for Macrochium rosenbergii, disinfection, cleaning and preparation of the breeding pond, planting of aquatic plants, application of a base fertilizer, larva stocking and feeding management, Macrochium rosenbergii larvae are bred into young Macrochium rosenbergii with strong adaptive capacity and large size by careful feeding management in a short period of time; and breeding of adult Macrochium rosenbergii is then performed. The invention has the following advantages: the survival rate of the Macrochium rosenbergii larvae is improved; the adaptive capacity of the young Macrochium rosenbergii is strong; the yield of breeding is increased; the cost of breeding is reduced; and the young Macrochium rosenbergii has strong physique and good decrease resistance.

The invention discloses a seedling raising method for improving the emergence rate and growth rate of aquatic plant Victoria regia Lindl.. The seedling raising method comprises the following steps: seed collection, seed treatment, dormancy breaking, pesticide application, hormone seed soaking, pregermination and seedling transplanting. According to the method, in the whole process of seed collection to seedling, the water content and temperature are controlled, beneficial environmental conditions are provided for germination of Victoria regia Lindl. seeds, the survival rate of the seeds is increased, and the seedling time is shortened. The method adopts a supplementing light source, an excellent development state of the Victoria regia Lindl. seeds can also be maintained on rainy days, and the seedling time is shortened. Moreover, an oxygenator is additionally arranged in a container, and refresh air is introduced into water for supplying oxygen to the Victoria regia Lindl. seeds, so that the seedling time is shortened, and the survival rate of the seedlings is increased. According to the method, the pesticide seed soaking is adopted, so that plant diseases and insect pests for the Victoria regia Lindl. are effectively controlled; and the hormone seed soaking is adopted, so that the seedlings are healthy and strong, and the emergence of the seedlings is complete.

The invention discloses an early propagation and quick cultivation method of tilapia, and belongs to the technical field of tilapia culturing. According to the method, fry cultivation starts in the middle of January, and fries can be borne in early April; by means of strict fry cultivation condition control, the high survival rate and the high yield are guaranteed, the fry yield is 56-60/kg, and fry bearing is very uniform.

The invention discloses a bamboo willow seedling greenhouse rapid seedling cultivation method. The method includes the following steps of: (1) arrangement of a plastic greenhouse; (2) arrangement of a fog system; (3) preparation of tourmaline; (4) scion selection; (5) scion treatment; (6) cuttage; (7) preparation of a nutrient solution; and (8) nutrient solution spraying. According to the method, rapid seedling cultivation is performed on tailored scions in a seedling box; during seedling cultivation in the seedling box, the tourmaline and a magnet are combined together to achieve fast water and nutrient absorption, thereby shortening seedling time of the cuttage scions in the seedling box and shortening the growth cycle of the whole bamboo willow seedling planting; and the seedling box is used for seedling, and the growth conditions in the seedling box are consistent, so that the growth vigor of bamboo willow seedlings is even, and the survival rate of the bamboo willow seedlings is high.

The invention relates to a culture method for rotation of prawns in a northern greenhouse. The culture method comprises the following steps of pond greenhouse construction, cleaning and disinfection, small shed culture, three-time fry putting time, feeding, water quality management, combined oxygenation, disease control and three-time fishing. A primary evaporation pond of a seawater salt pan is transformed into a single culture pond, the survival rate of prawns is improved increased, and thus the yield per mu and the total yield are greatly improved.

The invention mainly relates to the technical field of yellow tea planting, and discloses an alpine seedling raising method of Jinji Mountain yellow tea. The alpine seedling raising method of the Jinji Mountain yellow tea includes the steps of selecting cuttings, preparing a seedling bed, treating the cuttings, conducting cuttage on the cuttings, and carrying out post-cuttage management; the method is simple, cutting seedling raising can be conducted in the four seasons, the time limit in a traditional cutting method is avoided, the survival rate of cuttings is significantly increased and reaches 97%, and the seedling raising efficiency of the Jinji Mountain yellow tea is significantly improved; biennial to triennial branches are selected to be cut into middle cuttings, cutting strips accumulate a certain quantity of nutrient components, and ducts and sieve tubes grow to be mature, which is conducive to transporting the nutrient components; phloem cells still maintain high vitality, forming of the callus is promoted, and wound healing is facilitated; the inclination angles of seedling beds are large, intervals of cutting base parts can be enlarged, nutrient component competition among the cuttings is reduced, expansion of root systems and absorption of the nutrient components are promoted, the sunshade rate of Jinji Mountain deciduous trees on the seedling beds is guaranteed, and it is ensured that cutting seedling raising can be conducted in the four seasons.

The invention discloses a movable agricultural seedling raising device and a seedling raising method thereof in the technical field of agricultural seedling raising. The movable agricultural seedling raising device comprises a plurality of bearing ring plates at equal intervals, the centers of the plurality of bearing ring plates are rotatably provided with a same fixing rod through a support, the bottom surface of the bearing ring plate at the lowermost end is provided with a wheel set mechanism for moving equipment, a plurality of planting baskets are arranged at the upper end of the bearing ring plate, and an adjusting mechanism capable of automatically adjusting the seedling spacing according to the seedling weight is arranged between the bearing ring plate and the planting baskets; the problem that mushroom hyphae grow slowly due to the fact that the mushroom hyphae cannot absorb sufficient oxygen in a narrow space due to the fact that existing mushroom seedling raising is conducted in a stacking mode and air circulation is poor is solved.

The invention discloses a rice field culture method suitable for Perccottus glenii in an alpine region, and relates to a rice field fish culture method. The method aims at solving the technical problem that an existing rice field fish culture method cannot meet the rice field culture requirement of the alpine region. The method comprises the steps that fish pits or fish pits and fish ditches are formed in a rice field, aquatic plants are planted in the fish pits to be used for putting artificial fish nests, fermented chicken manure fertilizer water is put into the fish pits firstly after riceseedlings are transplanted in the rice field, then fingerlings are put into the fish pits, and bait is supplemented once every 30 days after the fingerlings are put into the fish pits; after the ricefield is harvested, the water level of the rice field is raised to 18-22 cm above the soil plane, the water level is controlled to 10-20 cm above the soil plane of the rice field before overwintering,and fresh bait is put into the fish pits before the rice field water is frozen; and in the overwintering period, ice surfaces of the fish pits and the fish ditches are kept transparent, bait is thrown again after unfreezing in the second year, and fishing is conducted before rice field turning. Compared with fishing and selling before freezing, the method has the advantages that the total economic benefit is increased by 40%-50%, and the method can be applied to the field of rice field culture in the alpine region.

The invention relates to a rapid seedling method of eucommia ulmoides. The rapid seedling method is characterized by comprising the following steps: a. treating seeds before sowing; b. screening substances; c. selecting nutritional liquid; and d. managing seedling bed. The invention aims at providing a method for suitable for rapidly seedling of eucommia ulmoides. The method is beneficial to shortening the seedling time, improving the quality of seedlings, and lowering the production cost of seedlings.

The invention provides a method for breeding a beet male sterile line and a maintainer line by using an excellent pollination line, which comprises the following steps: hybridizing an excellent single-grain beet maintainer line with a beet pollination line to obtain O * P seeds; selecting a single plant from the O * P filial generation as a male parent, performing plant-to-plant test cross on the male parent and a beet male sterility test line, and separately harvesting seeds to obtain CMS-n * (O * P)-n and (O * P)-n seeds; sowing the CMS-n * (O * P)-n seeds to cultivate mother roots, and investigating fertility during flowering; sowing seeds harvested from a male parent single plant of which the offspring is completely sterile in CMS plant-to-plant test cross, cultivating a mother root, independently isolating, opening and pollinating, and harvesting the seeds in a mixed manner; obtaining a beet maintainer line; a CMS test line used for test cross is a male sterile line. By adopting the method, excellent characters in the pollination line can be introduced into the O-type line, the O-type line is improved within a short time, and the CMS and the O-type line are rapidly bred.

The present invention relates to a cultivation method for zelkova schneideriana seedlings. The method comprises the following steps of (1) preparing a cultivation nursery, namely selecting fertile sandy loam or light loam and building a seedbed after cake fertilizer application, deep ploughing, fine soil preparation and levelling; (2) soaking seeds, namely soaking dry storage seeds in water for 2to 3 days, taking out sinking seeds, soaking the seeds for 30 minutes with 0.5% potassium permanganate or 1% bleaching powder, and fishing up and airing the seeds; (3) accelerating germination, namelysoaking the seeds in warm water for 4 days and putting the seeds at an environment of 4 to 8 DEG C for 10 days; (4) performing seeding, namely performing seeding on the seedbed in lines with the seeding rate of 150 to 200 kilograms per hectare, covering the seedbed with grass and keeping the soil of the seedbed moist; (5) carrying out seedling management, namely removing the grass timely after seedling emergence, and carrying out thinning, soil loosening, weeding, irrigation and topdressing timely at the seedling stage; and (6) carrying out seedling outplanting, namely carrying out seedling outplanting after the seedlings grow for 9 to 10 months. According to the method, the seedling growing time is short, the seedling yield is up to 220000 to 330000 seedlings per hectare, the seedlings can be transferred for planting in the same year, the quality of the seedlings is excellent, and the market competitiveness is strong.